BQ2322-7R - BEL POWER SOLUTIONS

Q Series Data Sheet

66 – 132 Watt DC-DC Converters

BCD20011-G Rev AG, 12-Mar-2012 Page 1 of 26 www.power-one.com

Features

• RoHS lead-free-solder and lead-solder-exempted

products are available

• Wide input voltage ranges up to 150 VDC

• 1 or 2 isolated outputs from 3.3 to 48 V

• Class I equipment

• Extremely high efficiency of up to 90%

• Flexible output power

•Excellent surge and transient protection

•Outputs open and short-circuit proof

•Redundant operation, current sharing

•Extremely low inrush current, hot-swappable

•Externally adjustable output voltage and inhibit

•Electric strength test 2.1 kVDC

•Extremly slim case (4 TE, 20 mm), fully enclosed

•Railway standards EN 50155, 50121-3-2 observed

•Telecoms-compatible input voltage range of 48Q

models according to E TS 300132-2 (38.4 to 75 VDC)

Safety-approved to IEC/EN 60950-1 and UL/CSA

60950-1 2nd Ed.

Description

These extremely compact DC-DC converters incorporate all

necessary input and output filters, signaling and protection

features, which are required in the majority of applications.

The converters provide important advantages such as flexible

output power through primary current limitation, high

efficiency, excellent reliability, very low ripple and RFI noise

levels, full input to output isolation, negligible inrush current,

overtemperature protection, and input over-/undervoltage

lockout. The converter inputs are protected against surges

and transients occurring on the source lines.

The converters are particularly suitable for rugged

environments, such as railway applications. They have been

designed in accordance with the European railway standards

EN 50155 and EN 50121-3-2. All printed circuit boards are

coated with a protective lacquer.

The outputs are continuously open- and short-circuit proof. An

isolated output Power Good signal and LEDs at the front panel

indicate the status of the converter. Test sockets at the front

164

6.5"

0.8"

4 TE

111

4.4

3 U

panel allow for a check of the main output voltage.

Full system flexibility and n+1 redundant operating mode are

possible due to virtually unrestricted series or parallel

connection capabilities of all outputs. In parallel connection of

several converters, automatic current sharing is provided by a

single-wire interconnection.

As a modular power supply or as part of a distributed power

supply system, the extremely low profile design significantly

reduces the necessary power supply volume without

sacrificing high reliability. A temperature sensor disables the

outputs, if the case temperature exceeds the limit. The outputs

are automatically re-enabled, when the temperature drops

below the limit.

The fully enclosed, black-coated aluminum case acts as a heat

sink and an RFI shield. The converters are designed for 19"

DIN-rack systems occupying 3 U/4 TE only, but can also be

chassis-mounted by means of four screws. Fitting an

additional heat or ordering options with fitted heat sink is

possible as well.

Table of Contents Page Page

Description .......................................................................... 1

Model Selection .................................................................. 2

Functional Description ........................................................ 5

Electrical Input Data............................................................ 6

Electrical Output Data ......................................................... 8

Auxiliary Functions............................................................ 1 6

Electromagnetic Compatibility (EMC) ............................... 19

Immunity to Environmental Conditions ............................. 21

Mechanical Data ............................................................... 22

Safety and Installation Instructions ................................... 23

Description of Options ...................................................... 24

Accessories....................................................................... 26

Q Series Data Sheet

66 – 132 Watt DC-DC Converters

BCD20011-G Rev AG, 12-Mar-2012 Page 2 of 26 www.power-one.com

Table 1c: Model types DQ, EQ

Output 1 Output 2 Output power 1 Operating input voltage range, efficiency Options

Vo nom Io nom Io max Vo nom Io nom Io max TA = 71 °C TA = 50 °C Vi min – Vi max ηη

ηη

ηmin

2 ηη

ηη

ηtyp Vi min – Vi max ηη

ηη

ηmin 2 ηη

ηη

ηtyp

[VDC] [A] [A] [VDC] [A] [A] Po nom [W] Po max [W] 43 – 108 VDC [%] [%] 65 – 150 5 VDC [%] [%]

3.3 20* 25* - - - 66* 82* DQ1101-9 82* EQ1101-9 -7, B1, G

5.1 16 20 - - - 82 102 DQ1001-9R 85.5 86.5 EQ1001-9R 84.5 86 -7, P, B1, G

12 3 8 10 - - - 96 120 DQ2320-9R 88 90 EQ2320-9R 87 88.5 -7, P, B1, G

15 3 6.6 8 - - - 99 120 DQ2540-9R 89* 90.5 EQ2540 -9R 87.5 89 -7, P, B1, G

24 3 4.4 5.5 - - - 106 132 DQ2660-9R 89* 90.5 EQ2660-9R 87.5* 89.5 -7, P, B1, G

5.1 4 7.5 15 5.1 47.5 15 77 97 DQ2001-9R 85 86.5 EQ2001-9R 84 86 -7, P, B1, G

12 4 4 9.2 12 4 4 9.2 96 120 DQ2320-9R 88 90 EQ2320-9R 87 88.5 -7, P, B1, G

15 4 3.3 7.4 15 4 3.3 7.4 99 120 DQ2540-9R 89* 90.5 EQ2540-9R 87.5 89 -7, P, B1, G

24 4 2.2 5.1 24 4 2.2 5.1 106 132 DQ2660-9R 89* 90.5 EQ2660-9R 87.5* 89.5 -7, P, B1, G

* Converters with version V104 or higher. ** Converters with version V105 or higher.

1The cumulated power of both outputs can not exceed the total power for the specified ambient temperature. See also Output Power at

Reduced Temperature.

2Minimum efficiency at Vi nom, Io nom and TA = 25 °C

3Double-output models with both outputs connected in parallel

4Double-output models. Output 2 is a tracking output isolated from the output 1.

5168 V for ≤2 s

NFND: Not for new designs. Preferred for new designs

Model Selection

Table 1a: Model types BQ, GQ

Output 1 Output 2 Output power 1 Operating input voltage range, efficiency Options

Vo nom Io nom Io max Vo nom Io nom Io max TA = 71 °C TA = 50 °C Vi min – Vi max ηη

ηη

ηmin

2 ηη

ηη

ηtyp Vi min – Vi max ηη

ηη

ηmin

2 ηη

ηη

ηtyp

[VDC] [A] [A] [VDC] [A] [A] Po nom [W] Po max [W] 14.4 – 36 VDC [% ] [% ] 21.6 – 54 VDC [ % ] [ % ]

3.3 20* 25* - - - 66* 82* BQ1101-9 81* GQ1101-9 -7, B1, G

5.1 16 20 - - - 82 102 BQ1001-9R 85 86 GQ1001-9R 85.5 86 -7, P, B1, G

12 3 8 10 - - - 96 120 BQ2320-9R 87.5** 87.5 GQ2320-9R 86 87 -7, P, B1, G

15 3 6.6 8 - - - 99 120 BQ2540-9R 87 88 GQ2540-9R 86.5 88.5 -7, P, B1, G

24 3 4.4 5.5 - - - 106 132 BQ2660-9R 89* 90.5* GQ2660-9R 89* 90* -7, P, B1, G

5.1 4 7.5 15 5.1 47.5 15 77 97 BQ2001-9R 85 86 GQ2001-9R 85.5 86 -7, B1, G

12 4 4 9.2 12 4 4 9.2 96 120 BQ2320-9R 87.5** 87.5 GQ2320-9R 86 87 -7, P, B1, G

15 4 3.3 7.4 15 4 3.3 7.4 99 120 BQ2540-9R 87 88 GQ2540-9R 86.5 88.5 -7, P, B1, G

24 4 2.2 5.1 24 4 2 . 2 5.1 106 1 32 BQ2660-9R 89* 90.5* GQ2660-9R 89* 90* -7, P, B1, G

Table 1b: Model types CQ, 48Q

Output 1 Output 2 Output power 1 Operating input voltage range, efficiency Options

Vo nom Io nom Io max Vo nom Io nom Io max TA = 71 °C TA = 50 °C Vi min – Vi max ηη

ηη

ηmin

2 ηη

ηη

ηtyp Vi min – Vi max ηη

ηη

ηmin 2 ηη

ηη

ηtyp

[VDC] [A] [A] [VDC] [A] [A] Po nom [W] Po max [W] 33.6* – 75 VDC [% ] [ % ] 38.4 – 75 VDC [%] [% ]

3.3 20* 25* - - - 66* 82* CQ1101-9 82* -7, B1, G

5. 1 16 2 0 - - - 82 10 2 CQ1001-9R 85 87 -7, P, B1, G

5.1 16 16 - - - 82 82 48Q1001-2R 83 B1, G

12 3 8 1 0 - - - 96 12 0 CQ2320-9R 87 88 -7, P, B1, G

12 3 8 8 - - - 96 96 48Q2320-2R 85 B1, G

15 3 6.6 8 - - - 99 120 CQ2540-9R 87 88.5 -7, P, B1, G

15 3 6.6 6.6 - - - 99 99 48Q2540-2R 85 B1, G

24 3 4 .4 5.5 - - - 106 1 32 CQ2660-9R 89 * 91 -7, P, B1, G

24 3 4.4 4.4 - - - 106 106 48Q2660-2R 87 B1, G

5.1 4 7.5 15 5.1 47.5 1 5 77 97 CQ2001-9R 85 87 -7, B1, G

12 4 4 9.2 12 4 4 9.2 96 1 2 0 CQ2320-9R 87 88 -7, P, B1, G

12 4 4 7.2 12 4 4 7.2 96 96 48Q2320-2R 85 B1, G

15 4 3.3 7.4 15 43.3 7.4 99 120 CQ2540-9R 87 88.5 -7, P, B1, G

15 4 3.3 6 15 43.3 6 99 99 48Q2540-2R 85 B1, G

24 4 2.2 5.1 24 4 2.2 5.1 10 6 1 32 CQ2660-9R 89* 9 1 -7, P, B1, G

24 4 2.2 4 24 4 2.2 4 106 106 48Q2660-2R 87 B1, G

Q Series Data Sheet

66 – 132 Watt DC-DC Converters

BCD20011-G Rev AG, 12-Mar-2012 Page 3 of 26 www.power-one.com

C Q 2 5 40 -9 R B1 G

Part Number Description

Input voltage range Vi:

14.4 – 36 V....................................................... B

21.6 – 54 V....................................................... G

33.6 – 75 V........................................................ C

38.4 – 7 5 V ..................................................... 4 8

43 – 108 V......................................................... D

65 – 150 V......................................................... E

Series...................................................................................Q

Number of outputs:

Single-output models .........................................1

Double-output models ........................................2

Single-output models (long case)2...................6

Double-output models (long case)2.................7

Single-output models:

Nominal output voltage (main output):

3.3 V ...................................................................1

5.1 V ...................................................................0

12 V ....................................................................3

15 V ....................................................................5

24 V ................................................................6, 7

Other voltages............................................7, 8, 9

Other specifications or additional

features for single-output models3.... 01 – 99

Double-output models:

Nominal voltage of 2nd output Vo2 nom

5.1 V ........................................................ 01 – 09

12 V ......................................................... 20 – 39

15 V ......................................................... 40 – 59

24 V ......................................................... 60 – 79

Other voltages or additional

features3.................................................................. 01 – 99

Operational ambient temperature range TA:

–10 to 50 °C...................................................... -2

–25 to 71 °C (option, NFND) ............................ -7

–40 to 71 °C...................................................... -9

other ....................................................... -0, -5, -6

Output voltage control input (auxiliary function) 1................. R

Potentiometer (option, NFND) 1........................................... P

Additional heatsinks.....................................................B, B1

RoHS compliant for all six substances ............................ G3

1Option P excludes feature R and vice versa.

2Models with 220 mm case length. Just add 5000 to the standard model number.

3Customer-specific models.

Note: The sequence of options must follow the order above.

Preferred for new designs.

Example: CQ2540-9B1G: DC-DC converter, input voltage

range 33.6 to 75 V, double-output model, each

output providing 15 V/3.3 A, equipped with a heat

sink, operating ambient temperature TA = –40 to

71 °C, RoHS-compliant for all six substances.

Note: All models have the following auxiliary functions, which are

not shown in the type designation: input and output filter, inhibit,

sense lines, current sharing, Out OK signal, LED indicators, and

test sockets (not 48Q models).

Note: 48Q models are designed according to Telecom standards

ETS 300132-2 and EN 41003. Vi min is 38.4 V such limiting the

input current Ii to 150% of Ii nom.

Q Series Data Sheet

66 – 132 Watt DC-DC Converters

BCD20011-G Rev AG, 12-Mar-2012 Page 4 of 26 www.power-one.com

Fig. 4

Symmetrical-output configuration (with common ground)

Fig. 2

Parallel-output configuration

Fig. 1

Single-output configuration

Fig. 3

Series-output configuration

Fig. 5

Independent-output configuration

Load

Vo–

S–

Vo+

S+

Single-output

model

Vi–

Vi+

01001a

Load

Vo2–

Vo1–

S–

Vo1+

Vo2+

S+

Double-output

model

Vi–

Vi+

01002a

Load

Vo1–

S–

S+

Vo2–

Vo2+

Vo1+

Double-output

model

Vi–

Vi+

01003a

Load 1

Load 2

Vo2+

Vo1–

Vo2–

S–

S+

Vo1+

Double-output

model

Vi–

Vi+

01005a

Vo+

Vo2+

Vo1–

Vo2–

S–

S+

Vo1+

Double-output

model

Vi–

Vi+

Load 1

Load 2

GND

Vo–

01004a

Product Marking

Type designation, applicable safety approval and recognition

marks, CE mark, warnings, pin allocation, Power-One

patents, and company logo.

Identification of LEDs, test sockets and potentiometer.

Input voltage range and input current, nominal output voltages

and currents, degree of protection, batch no., serial no., and

data code including production site, version (modification

status) and date of production.

Output Configuration

The Q Series design allows different output configurations to

cover almost every individual requirement, by simply wiring

the outputs in parallel, series, or symmetrical configuration

as per the following figures. For further information and for

parallel and series operation of several converters see

Electrical Output Data.

Q Series Data Sheet

66 – 132 Watt DC-DC Converters

BCD20011-G Rev AG, 12-Mar-2012 Page 5 of 26 www.power-one.com

Functional Description

The converters are designed as forward converters using

primary and secondary control circuits in SMD technology. The

switching frequency is approximately 200 kHz under nominal

operating conditions. The built-in high-efficient input filter

together with a small input capacitance generate very low

inrush currents of short duration. After transformer isolation

and rectification, the output filter reduces ripple and noise to a

minimum without compromising the dynamic ability. The

output voltage is fed to the secondary control circuit via

separate sense lines. The resultant error signal is sent to the

primary control circuit via a signal transformer.

Double-output models have the voltage regulation of output 2

relying on the close magnetic coupling of the transformer and

the output inductor together with the circuits' symmetry.

The current limitation is located at the primary side, thus

limiting the total output current in overload conditions. This

allows flexible loading of each output for unsymmetrical loads

in the range 10 to 90% of the total output power . In applications

with large dynamic load changes, we recommend connecting

such a load to output 1. If output 2 is not used, it should be

connected parallel to output 1. Both outputs can either be

series- or parallel-connected (see Electrical Output Data).

In normal operation, the internal control circuits are powered

by a third winding of the main choke (except 48Q models).

Start-up is ensured from the input voltage by a linear regulator.

Note: When the output voltage is much lower then the nominal

value, this linear regulator is activated, generating considerable

power losses.

Fig. 6

Block diagram of a single-output converter

Fig. 7

Block diagram of a double-output converter

Vi–

Vi+

Primary

control circuit

Output

control

Output

filter

Isolation

Output

monitor

Out OK+

Out OK–

S–

S+

Vo+

Vo–

Input

filter

03111a

Leading pins

Potentiometer for option P

Do not connect for models xQ1101 or with option P

Do not connect

Fuse

Vi–

Vi+

Output

control

Primary

control circuit

Output

filter

Output

filter

Isolation C

Output

monitor V

Out OK+

Out OK–

Vo2+

Vo2–

S+

Vo1+

Vo1–

S–

Input

filter

03112a

Fuse

Leading pins

Potentiometer for option P

Do not connect for models with option P

Do not connect

Q Series Data Sheet

66 – 132 Watt DC-DC Converters

BCD20011-G Rev AG, 12-Mar-2012 Page 6 of 26 www.power-one.com

Table 2b: Input data

Input 48Q 2 DQ EQ Unit

Characteristics Conditions min typ max min typ max min typ max

ViOperating input voltage Io = 0 – Io max 38.4 75 43 108 65 150 V

for ≤2 s TC min – TC max n.a. n.a. 168

Vi 100 ms for ≤100 ms without shutdown n.a. 36 115 55 176

Vi nom Nominal input voltage 48 72 110

Vi abs Input voltage limits 2 s without damage 0 100 0 125 0 200

IiTypical input current 1 Vi nom, Io nom 2.2 1.5 1.0 A

Pi 0 No-load input power Vi min – Vi max 2.5 5.5 5.0 W

Pi inh Idle input power 4Io = 0 1.5 3.5 3.5

Iinr p Peak inrush current 2 Vi nom, Io nom 35 20 45 A

tinr r Rise time inrush 35 50 15 µs

tinr h Time to half value 80 90 25

td on Start-up time30 →Vi min, Io nom 8 20* 20* ms

* Models with version V104 or higher

1Typical input current depends on model type

2According to ETS 300132-2

3See fig. 19

4Converter inhibited

Electrical Input Data

General Conditions:

– TA = 25 °C, unless TC is specified.

– Sense lines connected directly at the connector, inhibit (28) connected to Vi– (32).

– R input not connected; with option P, Vo set to Vo nom at Vi nom.

Table 2a: Input data

Input BQ GQ CQ Unit

Characteristics Conditions min typ max min typ max min typ max

ViOperating input voltage Io = 0 – Io max 14.4 36 21.6 54 33.6 75 V

TC min – TC max

Vi 100 ms for ≤100 ms without shutdown 14.4 21.6 33.6

Vi nom Nominal input voltage 24 36 48

Vi abs Input voltage limits 2 s without damage 0 50 0 63 0 100

IiTypical input current 1 Vi nom, Io nom 4.5 3.0 2.2 A

Pi 0 No-load input power Vi min – Vi max 2.5 3.0 2.5 W

Pi inh Idle input power 4Io = 0 1.0 1.5 1.5

Iinr p Peak inrush current2Vi nom, Io nom 55 40 35 A

tinr r Rise time inrush 50 40 35 µs

tinr h Time to half value 130 110 80

td on Start-up time30 → Vi min, Io nom 558ms

Q Series Data Sheet

66 – 132 Watt DC-DC Converters

BCD20011-G Rev AG, 12-Mar-2012 Page 7 of 26 www.power-one.com

Input Transient Protection

A metal oxide VDR (Voltage Dependent Resistor) together with

the input fuse and a symmetrical input filter form an effective

protection against high input transient voltages, which typically

occur in most installations, especially in battery-driven mobile

applications.

Nominal battery voltages in use are: 24, 36, 48, 60, 72, 96, and

110 V. In most cases each nominal value is specified in a

tolerance band of –30% to +25%, with short excursions to

±40% or even more.

In some applications, surges according to RIA 12 are specified

in addition to those defined in IEC 60571-1 or EN 50155. The

power supply must not switch off during these surges and

since their energy can practically not be absorbed, an

extremely wide input voltage range is required. The Q Series

input range has been designed and tested to meet most of

these requirements. See also Electromagnetic Immunity.

Input Under-/Overvoltage Lockout

If the input voltage falls outside the limits of Vi 100 ms, an

internally generated inhibit signal disables the output(s).

Inrush Current

The inherent inrush current value is lower than specified in the

standard ETS 300132-2. The converters operate with

relatively small input capacitance, resulting in low inrush

current of short duration. As a result, in a power-bus system

the converters can be hot-swapped, causing negligible

disturbance.

Fig. 8

Input configuration

Input Stability with Long Supply Lines

If a Q Series converter is connected to the power source with

long input lines which exhibit a considerable inductance, an

additional external capacitor connected in parallel to the input

improves stability and avoids oscillations.

Actually, a Q Series converter with nominal load acts like a

negative resistor, as the input current rises when the input

voltage decreases. It tends to oscillate with a resonant

frequency determined by the line inductance Lext and the input

capacitance Ci + Cext and damped by the resistors Ri + Rext.

The whole system is not linear at all and eludes a simple

calculation. One basic condition is given by the formula:

Rext << —

Vin²

—

• η

Rext is the series resistor of the source voltage including input

lines. If this condition is not fulfilled, the converter cannot reach

stable operating conditions. Worst case conditions are low

input voltage Vi and high output power Po.

Low inductance Lext of the input lines and a parallel connected

input capacitor Cext are helpful. Recommended values for Cext

are given in table 4, which should allow stable operation up to

an input inductance of 2 mH.

Input Fuse

An incorporated fuse in series to the negative input line

protects against severe defects. The fuse is not externally

accessible. Reverse polarity at the input will cause the fuse to

blow.

Note: Customer-specific models with no internal fuse are

available on request; the customer must prevew an external fuse

according to table 3.

Table 3: Fuse specifications

Model Fuse type Reference and rating

BQ very fast acting 2× Littelfuse 251, 10 A, 125 V

GQ very fast acting 2× Littelfuse 251, 7 A, 125 V

CQ very fast acting Littelfuse 251, 10 A, 125 V

48Q very fast acting Littelfuse 251, 10 A, 125 V

DQ very fast acting Littelfuse 251, 7 A, 125 V

EQ very fast acting Littelfuse 263, 5 A, 250 V

Table 4: Ci and recommended values for Cext

Model CiRecomm. Cext Voltage

BQ 220 µF ≥680 µF 40 V

GQ 110 µF ≥470 µF 63 V

CQ 50 µF ≥470 µ F 100 V

48Q 50 µF ≥470 µF 100 V

DQ 22 µF ≥150 µF 125 V

EQ 11 µF ≥68 µF 200 V

Vi+

Vi–

Vo+

Vo–

Lext Rext

CiRi

JM001

Cext

Load

Converter

Q Series Data Sheet

66 – 132 Watt DC-DC Converters

BCD20011-G Rev AG, 12-Mar-2012 Page 8 of 26 www.power-one.com

Electrical Output Data

General Conditions:

– TA = 25 °C, unless TC is specified.

– Sense lines connected directly at the connector, inhibit (28) connected to Vi– (32).

– R input not connected; with option P, Vo set to Vo nom at Vi nom.

Table 5a: Output data for single-output models and double-output models with both outputs in parallel configuration

Output BQ – GQ1101 48Q /BQ – GQ1001 48Q /BQ – GQ2320 Unit

3.3 V 5.1 V 12 V

Characteristics Conditions min typ max min typ max min typ max

Vo1 Setting voltage of 1st output Vi nom, Io nom 3.28 3.32 5.07 5.13 11.94 12.06 V

Vow Worstcase output voltage Vi min – Vi max 3.24 3.35 5.02 5.18 11.82 12.18

Vo P Overvoltage limitation TC min – TC max 4.5 4.9 5.9 6.4 13.5 15.0

by 2nd control loop Io = 0 – Io max

IoOutput current 2 Vi min – Vi max 0.05 25* 0 16/2030 8.0/103 A

Io nom Nominal output current TC min – TC max 20* 16 8.0

IoL Output current limit 2 26* 32.5* 16.8/21320.8/263 8.4/10.5310.4/12.53

vo 4 Output Switch. frequ. Vi nom, Io nom 15 25 10 20 10 20 mVpp

voltage noise Total incl.spikes BW = 20 MHz 25 50 20 50 20 40

Po max Output power 1 Vi min – Vi max 82 82/102396/1203W

TC min – TC max

vo d 4 Dynamic Voltage deviation Vi nom ±300 ±250 ±200 mV

load Io nom ↔ 1/2 Io nom

td 4 5 regulation Recovery time 800 800 1500 µ s

Vo os Dynamic line regulation 0 ↔ Vi max 0.5 0.5 0.8 V

(output overshoot) 0 – Io max

Vo tr Output via R-input 1 1.1•Vi min – Vi max n.a. 4.0 5.6 7.2 13.2

voltage 0.1•Io nom – Io nom

trim range using opt. P1TC min – TC max n.a 4.6 5.6 10.8 13.2

αVo Temp. coefficient of VoIo nom,

C min

– T

C ma

x±0.02 ±0.02 ±0.02 %/K

* Converters with version V104 or higher.

1If the output voltage is increased above Vo nom through R-input control, option P setting, or remote sensing, the output power should be

reduced accordingly, so that Po max and TC max are not exceeded.

2See Output Power at Reduced Temperature.

3First value for 48Q, 2nd value for BQ – GQ

4According to IEC/EN 61204

5Recovery time see Dynamic load regulation.

Q Series Data Sheet

66 – 132 Watt DC-DC Converters

BCD20011-G Rev AG, 12-Mar-2012 Page 9 of 26 www.power-one.com

Table 5b: Output data for double-output models with both outputs in parallel configuration. General conditions as per table 5a

Output 48Q /BQ – GQ2540 48Q /BQ – GQ2660 Unit

15 V 24 V

Characteristics Conditions min typ max min typ max

Vo1 Setting voltage of 1st output Vi nom, Io nom 14.93 15.08 23.88 24.12 V

Vow Worstcase output voltage Vi min – Vi max 14.78 15.23 23.64 24.36

Vo P Overvoltage limitation TC min – TC max 17 19 27.5 30

of second control loop Io = 0 – Io max

IoOutput current 2 Vi min – Vi max 0 6.6/8.0

30 4.4/5.5

Io nom Nominal output current TC min – TC max 6.6 4.4

IoL Output current limit 2 6.9/8.4

38.6/10.4

3 4.6/5.75

36.2/8.0

vo 4 Output Switch. frequ. Vi nom, Io nom 10 20 10 25 mVpp

voltage noise Total incl. spikes BW = 20 MHz 20 40 20 40

Po max Output power 1 Vi min – Vi max 99/120 3106/132 3W

TC min – TC max

vo d 4 Dynamic Voltage deviation Vi nom ±200 ±600 mV

load Io nom ↔ 1/2 Io nom

td 4 5 regulation Recovery time 1500 800 µ s

Vo os Dynamic line regulation 0 ↔ Vi max 0.8 1.2 V

(output overshoot) 0 – Io max

Vo tr Output via R-input 1.1•Vi min – Vi max 9.0 16.5 14.4626.4

voltage 0.1•Io nom – Io nom

trim range using opt. P 1 TC min – TC max 13.5 16.5 21.6 26.4

αVo Temp. coefficient of VoIo nom, TC min – TC max ±0.02 ±0.02 %/K

1If the output voltages are increased above Vo nom through R-input control, option P setting or remote sensing, the output power should be

reduced accordingly so that Po max and TC max are not exceeded.

2See Output Power at Reduced Temperature.

3First value for 48Q, 2nd value for BQ – GQ

4According to IEC/EN 61204

5Recovery time until Vo remains within ±1% of Vo, see Dynamic load regulation.

6For DQ2660 and EQ2660: 16.8 V

Q Series Data Sheet

66 – 132 Watt DC-DC Converters

BCD20011-G Rev AG, 12-Mar-2012 Page 10 of 26 www.power-one.com

Table 6a: Output data for double-output models with output 1 and output 2 in symmetrical or independent configuration.

General conditions as per table 5a.

Output 48Q /BQ – GQ2320 48Q /BQ – GQ2540 Unit

12 V /12 V 15 V /15 V

Characteristics Conditions Output 1 Output 2 Output 1 Output 2

min typ max min typ max min typ max min typ max

VoOutput setting voltage 1 Vi nom, Io nom 11.94 12.06 11.88 12.12 14.93 15.08 14.85 15.15 V

Vow Worstcase output Vi min – Vi max 11.82 12.18 see Output 14.78 15.23 see Output

voltage TC min – TC max Voltage Regulation Voltage Regulation

Vo P Overvoltage limitation Io = 0 – Io max n.a. 13.5 15 n.a. 17 19

of second control loop

IoOutput current 2 Vi min – Vi max 0.8 7.2 /9.2

3 0.8 7.2/9.2

3 0.6 6.0/7.4

3 A

Io nom Nominal output current TC min – TC max 4.0 4.0 3.3 3.3

Io L Output current limit 2 8.4/10.5 310. 4/13 3 8.4/10.5 3 10.4/13 3 6.9/8.4 38.6/10.4 3 6.9/8.4 38.6/10.4

vo 4 Output Switch. frequ. Vi nom, Io nom 8 16 8 16 8 16 8 16 mVpp

voltage BW = 20 M Hz

noise Total incl. spikes 1 6 40 16 40 16 40 16 40

Po max Output power total1Vi min – Vi max 96/120 399/120 3W

TC min – TC max

vo d 4 Dynamic Voltage Vi nom ±200 ±300 ±200 ±300 mV

load deviation Io nom ↔ 1/2 Io nom

td 4 5 regulation Recovery Io2 = 1/2 Io nom 1500 1500 µs

time

Vo tr Output via R-input 1.1•Vi min – Vi max 7.2 13.2 see Output 9.0 16.5 see Output V

voltage 0.1•Io nom – Io nom Vol tage Regulation Vol tage Regulation

trim range using opt. P TC min – TC max 10.8 13.2 13.5 16.5

αVo Temp. coefficient of VoIo nom ±0.02 ±0.02 ±0.02 ±0.02 %/K

TC min – TC max

1If the output voltages are increased above Vo nom through R-input control, option P setting, or remote sensing, the output power should

be reduced accordingly so that Po max and TC max are not exceeded.

2See Output Power at Reduced Temperature.

3First value for 48Q, 2nd value for BQ – GQ

4 According to IEC/EN 61204

5Recovery time until Vo remains within ±1% of Vo, see Dynamic load regulation.

6Io nom = Io1 + I o2

Q Series Data Sheet

66 – 132 Watt DC-DC Converters

BCD20011-G Rev AG, 12-Mar-2012 Page 11 of 26 www.power-one.com

Table 6b: Output data for double-output models with output 1 and output 2 in symmetrical or independent configuration.

General conditions as per table 5a

Output 48Q2660 BQ – GQ2660 Unit

24 V /24 V 24 V /24 V

Characteristics Conditions Output 1 Output 2 Output 1 Output 2

min typ max min typ max min typ max min typ max

VoOutput setting voltage 1 Vi nom, Io nom 23.88 24.12 23.76 24.24 23.88 24.12 23.76 24.24 V

Vow Worstcase output Vi min – Vi max 23.64 24.36 see Output 23.64 24.36 see Output

voltage TC min – TC max Vol tage Regulation Vol tage Regulation

Vo P Overvoltage limitation Io = 0 – Io max n.a. 27.5 30 n.a. 27.5 30

of second control loop

IoOutput current 2 Vi min – Vi max 0.4 4.0 0.4 4.0 0.4 5.1 0.4 5.1 A

Io nom Nominal output current TC min – TC max 2.2 2.2 2.2 2.2

Io L Output current limit 2 4.6 6.2 4.6 6.2 5.8 8.0 5.8 8.0

vo 4 Output Switch. frequ. Vi nom, Io nom 10 25 10 25 10 25 10 25 mVpp

voltage BW = 20 MHz

noise Total incl. spikes 2 0 40 20 40 20 40 20 40

Po max Output power total 1 Vi min – Vi max 106 132 W

TC min – TC max

vo d 4 Dynamic Voltage Vi nom ±400 ±500 ±400 ±500 mV

load deviation Io nom ↔ 1/2 Io nom

td 4 5 regulation Recovery Io2 = 1/2 Io nom 400 400 µs

time

Vo tr Output via R-input 1.1•Vi min - Vi max 14.4 26.4 see Output 14.4 3 26.4 see Output V

voltage 0.1•Io nom – Io nom Voltage Regulation Voltage Regulation

trim range using opt. P TC min – TC max n.a. 21.6 26.4

αVo Temp. coefficient of VoIo nom ±0.02 ±0.02 ±0.02 ±0.02 %/K

TC min – TC max

1If the output voltages are increased above Vo nom through R-input control, option P setting or remote sensing, the output power should be

reduced accordingly so that Po max and TC max are not exceeded.

2See: Output Power at Reduced Temperature

3For DQ2660 and EQ2660: 16.8 V

4 According to IEC/EN 61204

5Recovery time until Vo remains within ±1% of Vo, see Dynamic load regulation

Q Series Data Sheet

66 – 132 Watt DC-DC Converters

BCD20011-G Rev AG, 12-Mar-2012 Page 12 of 26 www.power-one.com

Parallel and Series Connection

Single- or double-output models with equal output voltage can

be connected in parallel without any precaution, by inter-

connecting the T-pins for equal current sharing; see fig. 9a.

Double-output models with their outputs connected in parallel

behave exactly like single-output models and are fully

regulated. There is no inconvenience or restriction using the R-

input with sense lines.

Single-output and/or double-output models can be connected

in series. For double-output models with both outputs

connected in series, consider that the effect via sense lines, R-

input or option P is doubled. See fig. 9b.

Parallel configuration of double-output models with both

outputs connected in series is shown in fig. 9c. It is essential

that the Vo1– pins of all paralleled converters are connected

together, as the auxiliary signals are referenced to Vo1– or to

S–. The effect via sense lines, R-input or option P is doubled.

Notes:

• If the second output of double-output models is not used,

connect it in parallel to the main output to maintain good

regulation.

• Parallel connection of several double-output models should

always include main and second outputs to produce good

regulation.

• Series connection of second outputs without involving their main

outputs should be avoided as regulation may be poor.

• The maximum output current is limited by the output with the

lowest current limit, if several outputs are connected in series.

• Rated output voltages above 48 V (SELV = Safety Extra Low

Voltage) need additional measures in order to comply with

international safety requirements.

Fig. 9b

Series connection of double-output models.

Fig. 9a

Parallel connection of single- and double-output models.

Load

Vo1+

Vo2–

Vo1–

S–

S+

Vo2+

Double

output

Vi–

Vi+

Out OK –

Out OK+

Vi–

Vi+

Out OK –

Out OK+

+–

Vo1+

Vo2–

Vo1–

S–

S+

Vo2+

Double

output

06114a

Fig. 9c

Parallel connection of double-output models with series-

connected outputs.

Load

Vo1+

Vo2–

Vo1–

S–

S+

Vo2+

Vi–

Vi+

Out OK –

Out OK+

Vi–

Vi+

Out OK –

Out OK+

+–

Vo1+

Vo2–

Vo1–

S–

S+

Vo2+

05092a

Load

Vo+/Vo2+

Vo–/Vo1–

Vo–/Vo2–

S–

S+

Vo+/Vo1+

Vi–

Vi+

Out OK–

Out OK+

Vo+/Vo2+

Vo–/Vo1–

Vo–/Vo2–

S–

S+

Vo+/Vo1+

Vi–

Vi+

Out OK–

Out OK+

+–

05091b

Q Series Data Sheet

66 – 132 Watt DC-DC Converters

BCD20011-G Rev AG, 12-Mar-2012 Page 13 of 26 www.power-one.com

Redundant Configuration

Fig. 10 a shows a circuit with ORing diodes DR in the positive

output lines, forming a redundant configuration. For accurate

output voltage regulation, the sense lines are connected after

the ORing diodes. The T pins should be connected together to

Fig. 10b

Redundant configuration of double-output models with

parallel-connected outputs.

Fig. 10a

Simple redundant configuration of double-output models with

parallel-connected outputs.

Load 0

Vo+/Vo2+

Vo–/Vo1–

Vo–/Vo2–

S–

S+

Vo+/Vo1+

Vi–

Vi+

Out OK–

Out OK+

Vo+/Vo2+

Vo–/Vo1–

Vo–/Vo2–

S–

S+

Vo+/Vo1+

Vi–

Vi+

Out OK–

Out OK+

+–

06097b

Load 1

Load 2

Load

Vo+/Vo2+

Vo–/Vo1–

Vo–/Vo2–

S–

S+

Vo+/Vo1+

Vi–

Vi+

Out OK–

Out OK+

Vo+/Vo2+

Vo–/Vo1–

Vo–/Vo2–

S–

S+

Vo+/Vo1+

Vi–

Vi+

Out OK–

Out OK+

+–

05091b

produce reasonable current sharing between the parallel-

connected converters.

If one of the converters fails, the remaining converters can

deliver the whole output power.

Note: The current-share logic can only increase the output volt age

marginally and remains functional even in the case of a failing

converter.

Fig. 10b shows a quite similar circuit with ORing diodes DR, but

with different output loads. To compensate for the voltage drop

of the ORing diodes (if necessary), an auxiliary circuit is added

to each power supply consisting of a small diode DS and a

small resistor RS. We recommend a current of approximately 10

mA through DS and RS. Only Load 0 benefits from a secured

supply voltage.

The current sharing may be improved by interconnecting the T

pins of the converters. This circuit is a bit less accurate, but

more flexible and less sensitive.

Caution: Do not connect the sense lines after the ORing diodes,

but directly with the respective outputs. If for some reason one of

the converters switches off and the ORing diode is blocking, a

reverse voltage can appear between the sense pin and the

respective output pin and damage the converter.

Output Voltage Regulation

The dynamic load regulation is shown in the figure below.

Fig. 11

Deviation of Vo versus dynamic load change

±1% V

±1%

≥ 10 µs ≥ 10 µs

0.5

o nom

05102c

The static load regulation measured at the sense pins is

negligible. Correct connection of the sense lines almost

eliminates any load regulation; see Sense Lines.

In a symmetrical configuration the output 1 with open R input is

regulated to Vo1 nom, regardless of the output currents. If the

load on output 2 is too small (<10% of Io nom), its voltage will

rise and may activate the overvoltage protection, which will

then reduce the voltage on both outputs.

Vo2 depends upon the load distribution: If each output is loaded

with at least 10% of Io nom , the deviation of Vo2 remains within

±5% o f Vo nom. The following figures explain the regulation with

different load distributions up to the current limit . If Io1 = Io2 or

the two outputs are connected in series, the deviation of Vo2

remains within ±1% of the value of Vo nom, provided that the

load is at least Io min.

Q Series Data Sheet

66 – 132 Watt DC-DC Converters

BCD20011-G Rev AG, 12-Mar-2012 Page 14 of 26 www.power-one.com

+ 0.5 V

– 0.5 V

2468

o2 max

= 14.2 V

[A]

[V]

= 7.2 A

= 5.6 A

= 4.0 A

= 2.4 A

= 0.8 A

05111a

+ 0.5 V

– 0.5 V

246

o2 max

= 18 V

[A]

[V]

= 6.0 A

= 4.6 A

= 3.3 A

= 2.0 A

= 0.66 A

05112a

+ 1.0 V

– 1.0 V

[A]

2345

o2 max

= 28 V

[V]

= 4.0 A

= 3.1 A

= 2.2 A

= 1.3 A

= 0.44 A

05113a

1.0

0.8

0.6

0.4

0.2 0.4 1.0 1.2

0.2

0.6 0.8 1.4

Vo/Vo nom

Io/Io nom

Io nom Io L 05104b

Out of specs.

1.0

0.95

0.5

o nom

Operation at reduced

temperature only

o L

05114c

Out of specs.

o max

Output Overvoltage Protection

Output voltage overshoot may occur, if the converter is either

hot plugged-in or disconnected, the input voltage is switched

on or off, the converter is switched with an inhibit signal, or after

a reset of a short circuit and power failure. Output overvoltage

can also result due to incorrectly wired sense lines.

A fully independent output voltage monitor (second control

loop) limits the voltage Vo or Vo2 to approximately 1.25 • Vo nom

Fig. 12

Double-output models with 12 V: Voltage deviation of Vo2

versus Io2 for different currents on output 1

Fig. 13

Double-output models with 15 V: Voltage deviation of Vo2

versus Io2 for different currents on output 1

Fig. 14

Double-output models with 24 V: Voltage deviation of Vo2

versus Io2 for different currents on output 1

Note: If output 2 is not used, we recommend to connect it in

parallel to Vo1. This results in improved efficiency and stability. (in double-output models, the 2nd output is monitored). This

circuitry further protects the load in the unlikely event of a

malfunction of the main control circuit.

There is no specific built-in protection against externally

applied overvoltage.

Note: If output 2 is not loaded, the 2nd control loop may reduce V01

under boundary conditions.

Output Current Protection

All outputs are fully protected against continuous open-circuit

condition or continuous short-circuit by an electronic current

limitation located on the primary side.

Single-output models and series- or parallel-connected

double-output models have a quasi rectangular constant

current limitation characteristic.

In double-output models, only the total current is limited,

allowing free choice of load distribution between the two

outputs, up to Io1 + Io2 ≤ Io max. However , a small current should

remain on both outputs to guarantee good voltage regulation.

In case of overload (Io1 + Io2 > Io max) both output voltages are

reduced simultaneously.

Current distribution in overload is dependent upon the type of

overload. A short-circuit in one output will cause the full current

flow into that output, whereas a resistive overload results in

more even distribution and in a reduced output voltage.

Fig. 15a

BQ – GQ models: Current limitation of single- or double-output

models with series-connected outputs (no opt. B or B1)

Fig. 15b

48Q models: Current limitation of single- or double-output

models with series-connected outputs (no opt. B or B1)

Q Series Data Sheet

66 – 132 Watt DC-DC Converters

BCD20011-G Rev AG, 12-Mar-2012 Page 15 of 26 www.power-one.com

12 345

η [%]

Io [A]

JM083

Vi max

Vi nom

Vi min

12 345

η [%]

Io [A]

JM082

Vi max

Vi nom

Vi min

Hold-up Time

The Q Series converters provide virtually no hold-up time. If

hold-up time is required, use external output capacitors or

decoupling diodes together with input capacitors of adequate

size.

Formula for additional external input capacitor:

2 • Po • th • 100

Ci ext = –––––––––––––––

η • (Vti 2 – Vi min2)

where as:

Ci ext = external input capacitance [mF]

Po= output power [W]

η= efficiency [%]

th= hold-up time [ms]

Vi min = minimum input voltage [V]

Vti = threshold level [V]

Thermal Considerations and Protection

If a converter is located upright in quasi-stationary air

(convection cooling) at the indicated maximum ambient

temperature TA max (see t able Temperature specifications), and

is operated at its nominal input voltage and output power, the

temperature TC measured at the Measuring point of case

temperature (see Mechanical Data) will approach TC max after

the warm-up phase. However, the relationship between TA

and TC depends heavily on the operating conditions and the

integration into a system. The thermal conditions are

Fig. 16a

Efficiency versus input voltage and current per output

(BQ2320)

influenced by input voltage, output current, airflow, and

temperature of surrounding components and surfaces. TA max

is therefore, contrary to TC max, an indicative value only.

Caution: The installer must ensure that under all operating

conditions TC remains within the limits stated in the table

Temperature specifications.

Note: Sufficient forced cooling or an additional heat sink improves

the reliability or allows TA to be higher than TA max, as long as TC max

is not exceeded. In rack systems without proper thermal

management, the converters must not be packed too densely! In

such cases the use of a 5 or 6 TE front panel is recommended.

A temperature sensor generates an internal inhibit signal,

which disables the outputs, if the case temperature exceeds

TC max. The outputs are automatically re-enabled when the

temperature drops below this limit. This feature is not fitted to

48Q models.

Operating BQ – GQ models with output current beyond Io nom

requires a reduction of the ambient temperature TA to 50 °C or

forced cooling. When TC max is exceeded, the converter runs

into its thermal protection and switches off; see fig. 17a.

Note: According to the railway standard EN 50155, the con-

verters BQ – GQ can be operated with Po nom continously at TA =

70 °C, and then for 10 min at TA = 85 °C without shutdown.

Fig. 17b shows the operation of 48Q models beyond TA =

50 °C with forced cooling.

Efficiency

0.4 Po nom

–10 30 40 50 60 70 80 °C

Po nom

forced

cooling

convection

cooling

TC max

05110b

Fig. 17b

Output power derating versus TA for 48Q models

A min

50 60 70 80 90 100 °C

forced

cooling

convection

cooling

C max

05116b

o max

o nom

0.75 P

o nom

Fig. 17a

Output power derating versus TA for BQ – GQ models

Fig. 16b

Efficiency versus input voltage and current per output

(EQ2320)

Q Series Data Sheet

66 – 132 Watt DC-DC Converters

BCD20011-G Rev AG, 12-Mar-2012 Page 16 of 26 www.power-one.com

Auxiliary Functions

Inhibit for Remote On/Off

Note: If this function is not used, the inhibit pin 28 must be

connected with pin 32 to enable the output(s). A non-

connected pin 28 will be interpreted by the internal logic as an

active inhibit signal and the output(s) will remain disabled (fail

safe function).

An inhibit input enables (logic low, pull down) or disables (logic

high, pull up) the output, if a logic signal, e.g. TTL, CMOS is

applied. In systems consisting of several converters, this

feature may be used, for example, to control the activation

sequence of the converters by means of logic signals, or to

allow the power source for a proper start-up, before full load is

applied.

Table 7: Inhibit characteristics

Characteristics Conditions min typ max Unit

Vinh Inhibit Vo = on Vi min – Vi max –50 0.8 VDC

voltage Vo = off TC min – TC max 2.4 50

Iinh Inhibit current Vinh = –50 V –500 µA

Vinh =0 V –40

Vinh = 50 V +500

Fig. 18

Definition of input and output parameters

Fig. 19

Output response as a function of Vi (on/off switching) or

inhibit control

The output response, when enabling and disabling the output

by the inhibit input, is shown in the following figure.

Current Sharing

The current sharing facility should be used when several

converters are operated in parallel or redundant connection.

This feature avoids that some converters are driven into

current limitation and thus produce excessive losses. As a

result, the stress of the converters is reduced, and the system

reliability is further improved.

Simple interconnection of the T pins causes the converters to

share the output current. The current tolerance of each

converter is approx. ±20% of the sum of its nominal output

currents Io1 nom + Io2 nom.

In n+1 redundant systems, a failure of a single converter will

not lead to a system failure, if the outputs are decoupled by

diodes; see fig. 10.

Note: T-function only increases the output voltage, until the

currents are evenly shared. If in a redundant system, one

converter fails, the remaining converters keep sharing their

currents evenly.

Since the T pins are referenced to the pins S–, the S– pins of

all converters must have the same electrical potential.

Double-output converters with both outputs connected in

series can also be paralleled with current sharing, if pins Vo1–

of all converters are connected together, see fig. 8c.

If the output voltages are programmed to a voltage other than

Vo nom by means of the R pin or option P, the outputs should be

adjusted individually within a tolerance of ±1 %.

Important: For applications using the hot-swap capabilities,

dynamic output voltage changes during plug-in/plug-out must be

considered.

Table 8: Inhibit response times (typ. values, outputs with ohmic load, R-input left open-circuit)

Characteristics Conditions BQ 48Q CQ GQ DQ* EQ* Unit

trOutput voltage rise time Vi nom, RL = Vo nom/Io nom 1.5 1.3 1.3 1.5 1.5 1.6 ms

(indicative values) Vi inh = 2.4 → 0.8 V

tfOutput voltage fall time Vi nom, RL = Vo nom/Io nom 3.3 V 0.5 0.5 0.5 0.5 0 .5 0 .5

Vi min (indicative values) Vi inh = 0.8 → 2.4 V 5 V 0.8 0.6 0.6 0.8 0.7 0.7

12 / 15 V 1.3 1.2 1.3 1.5 1.1 1.5

24 V 3 3 3 3 3 3

* Models with version V104 or higher

Vi–

Vi+

Vo–

S–

Load

inh

Vo–

Vo+

S+

06091a

0.8

i min

inh

[V]

2.4

0.1

o nom

d on

0.99

1.01

06159a

Q Series Data Sheet

66 – 132 Watt DC-DC Converters

BCD20011-G Rev AG, 12-Mar-2012 Page 17 of 26 www.power-one.com

Programmable Output Voltage (R-Function)

This feature is not available on models with 3.3 V output or with

option P.

Note: Models with 3.3 V output or with option P: The R-input must

be left open-circuit.

The converters offer a programmable output voltage. The

adjust is performed either by an external control voltage Vext or

an external resistor R1 or R2, connected to the R-input.

Trimming is limited to the values given in the table below (see

also Electrical Output Data). With open R-input, the output

voltage is set to Vo nom.

With double-output models, both outputs are affected by the

R-input settings.

If output voltages are set higher than Vo nom, the output

currents should be reduced accordingly, so that the maximum

specified output power is not exceeded.

Caution: To prevent damage, Vext should not exceed 20 V, nor be

negative.

a)Adjustment by means of an external control voltage

Vext between R (pin 16) and S– (pin 14); see fig. 20.

VoVext

Vext ≈ 2.5 V • ––––––– Vo ≈ Vo nom • –––––

Vo nom 2.5 V

b)Adjustment by means of an external resistor:

The resistor can either be connected:

• between R (pin 16) and S– (pin 14) to set Vo < Vo nom, or

• between R (pin 16) and S+ (pin 12) to set Vo > Vo nom.

Table 9a: R1 for Vo < Vo nom; approximate values (Vi nom, Io nom, series E 96 resistors); R2 = not fitted

Vo nom = 5.1 V Vo nom = 12 V Vo nom = 15 V Vo nom = 24 V

Vo [V] R1 [kΩΩ

ΩΩ

Ω]Vo [V] 1 R1 [kΩΩ

ΩΩ

Ω]Vo [V] 1 R1 [kΩΩ

ΩΩ

Ω]Vo [V] 1 R 1 [kΩΩ

ΩΩ

Ω]

4.0 14.7 15 2 30.0 2 6.65 2

4.1 16.5 9 18 6.04 16 2 32.0 2 8.06 2

4.2 18.2 7 14 5.62 9.5 19 6.98 17 2 34.0 2 9.76 2

4.3 21.5 7.5 15 6.65 10 20 8.06 18 2 36.0 2 12.1

4.4 25.5 8 16 8.06 10.5 21 9.31 19 38.0 15.4

4.5 30.1 8.5 17 9.76 11 22 11 20 40.0 20

4.6 37.4 9 18 12.1 11.5 23 13.3 20.5 41.0 23.7

4.7 47.5 9.5 19 15.4 12 24 16.2 21 42.0 28.0

4.8 64.9 10 20 20 12.5 25 20 21.5 43.0 34.8

4.9 97.6 10.5 11 28 13 26 26.1 22 44.0 44.2

5 200 11 22 44.2 13.5 27 36.5 22.5 45.0 60.4

11.5 23 93.1 14 28 56.2 23 46.0 90.9

14.5 29 115 23.5 47.0 190

Table 9b: R2 for Vo > Vo nom; approximate values (Vi nom, Io nom, series E 96 resistors); R1 = not fitted

Vo nom = 5.1 V Vo nom = 12 V Vo nom = 15 V Vo nom = 24 V

Vo [V] R2 [kΩΩ

ΩΩ

Ω]Vo [V] 1 R2 [kΩΩ

ΩΩ

Ω]Vo [V] 1 R2 [kΩΩ

ΩΩ

Ω]Vo [V] 1 R2 [kΩΩ

ΩΩ

Ω]

5.2 215 12.2 24.4 931 15.3 30.6 1020 24.5 49 1690

5.3 110 12.4 24.8 475 15.5 31 619 25 50 866

5.4 75 12.6 25.2 316 15.7 31.4 453 25.5 51 590

5.5 57.6 12.8 25.6 243 16 32 316 26 52 442

5.6 46.4 13 26.0 196 16.2 32.4 267 26.4 52.8 374

13.2 26.4 169 16.5 33 221

1First column: single or double output models with separated/paralleled outputs, second column: outputs in series connection.

2Not possible for DQ2660 and EQ2660.

Fig. 20

Output adjust using an external control voltage Vext.

Fig. 21

Output adjust using a resistor R1 (to lower Vo) or R2 (to

increase Vo).

Note: R-inputs of n converters with paralleled outputs may be

paralleled too, but if only one external resistor is used, its value

should be R1/n or R2/n, respectively.

Load

Vo–

S–

Vo+

S+

Single-output

model

Vi–

Vi+

06094b

Load 1

Load 2

Vo2+

Vo1–

Vo2–

S–

S+

Vo1+

Double-

output

model

Vi–

Vi+

ext

–

06093b

Q Series Data Sheet

66 – 132 Watt DC-DC Converters

BCD20011-G Rev AG, 12-Mar-2012 Page 18 of 26 www.power-one.com

Output Good Signal (Out-OK)

The isolated Out-OK output gives a status indication of the

converter and the output voltage. It can be used for control

functions such as data protection, central system monitoring or

as a part of a self-testing system. It can be connected to get a

centralized fault detection or may be used for other system-

specific applications at the primary or the secondary side of

the converter.

Connecting the Out-OK as per fig. 22, VOK <1.0 V indicates that

the Vo or Vo1 of the converter is within the range Vt1 low – Vt1 high.

Vt1 low corresponds to 0.95 - 0.98 Vo1 nom, Vt1 high to 1.02 – 1.05

Vo1 nom.

Note: Using the R-input or the option P, the monitor level is

tracking the programmed output voltage.

In an error condition, if the output voltage is out of range due to

overload or an external overvoltage, VOK will approach Vp.

The output is formed by an NPN transistor. The emitter (Out

OK–) can be connected to primary Vi – or secondary Vo1– to

get an open-collector output. In a configuration of several Q

Series converters, the Out OK pins can be series-connected in

order to get a system level signal (as shown in fig. 9). If one of

the converters fails, the series-connected output rises to high

impedance.

Caution: Out-OK is protected by an internal series

resistor and a Zener diode. To prevent damage, the

applied current IOK should be limited to ±10 mA.

Fig. 22

Out OK function

Dimensioning of resistor value Rp ≥ ––––––

0.5 mA

Output

control

circuit

22 Out OK+

Out OK–

1 k

20 V

06096a

Sense Lines

This feature allows for compensation of voltage drops at the

main output across connector contacts and load lines. If the

sense lines are connected at the load rather than directly at the

connector, the user must ensure that the differential voltages

(measured on the connector) ∆VS+ (between Vo+ and S+) and

∆VS– (between Vo – and S –) do not exceed the values in the

table below.

Table 10: Out-OK data

Characteristics Conditions min typ max Unit

VOK Out-OK voltage Output okay , IOK < 0.5 mA 0.8 1.0 V

IOK Out-OK current Output fail, VOK ≤ 15 V 25 µA

Applying generously dimensioned cross-section load leads

help avoiding troublesome voltage drops. To minimize noise

pick-up, wire the sense lines parallel or twisted. For

unsymmetrical loads, we recommend connecting the sense

lines directly at the female connector.

To ensure correct operation, both sense lines must be

connected to their respective power output. With double-

output models, the sense lines must be connected to output 1

only. Caution should be exercised, if outputs are series-

connected, as the compensated voltage is effectively doubled.

Because the effective output voltage and output power are

increased by the sense lines, the minimum input voltage rises

proportionally to the compensated output voltage.

Caution: Sense lines should always be connected. Incorrectly

connected sense lines may cause an overvoltage at the ouput,

which could damage the output load and activate the second

control loop. The sense lines can handle only small currents.

Note: Sense line connection in a redundant configuration is

shown in fig. 10.

Test Jacks and LEDs

Test jacks (for pin diameter 2 mm) are located at the front of

the converter and allow monitoring the main output voltage at

the sense line terminals. The test sockets are protected by

internal series resistors. Double-output models show the

sense line voltage of output 1 at the test jacks. 48Q models

have no test jacks.

48Q models exhibit a green LED In-OK to monitor the input

voltage. BQ – GQ models have an additional LED Out-OK,

which is activated simultaneously to the Out-OK signal.

Table 11: Voltage compensation by sense lines

Nominal output ∆∆

∆∆

∆VS+ ∆∆

∆∆

∆VS– Sum of Unit

voltage ∆∆

∆∆

∆VS+ + ∆∆

∆∆

∆VS–

3.3 V, 5.1 V ≤0.5 ≤0.25 ≤0.5 V

12 V, 15 V ≤1.0 ≤0.5 ≤1.0

24 V ≤1.0 ≤1.0 ≤2.0

Table 12: Display status of LEDs

LED In OK LED Out OK Operating condition

green green normal operation

green x incorrect sense line connection

green off overtemperature

overload

output overvoltage

output undervoltage

off green not possible

off off no input voltage

input voltage too low

input voltage too high

inhibit input open / high

x = dependent on actual operating condition

Q Series Data Sheet

66 – 132 Watt DC-DC Converters

BCD20011-G Rev AG, 12-Mar-2012 Page 19 of 26 www.power-one.com

input transient voltages, which typically occur in most

installations, especially in battery-driven mobile applications.

The Q Series has been successfully tested to the following

specifications:

Electromagnetic Comp atibility (EMC)

A metal oxide VDR together with an input fuse and a sym-

metrical input filter form an effective protection against high

Electromagnetic Immunity

Table 13: Immunity type tests

Phenomenon Standard Level Coupling Value Waveform Source Test In Perf.

mode1applied imped. procedure oper. crit. 2

Supply related RIA 12 B +i/–i 1.5 • Vbatt 0.1/1/0.1 s 0.2 Ω1 positive yes A

surge EN 50155 1.4 • Vbatt 1 Ωsurge

Direct transients RIA 12 D4–i/c, +i/–i 1800 Vp5/50 µs 5 Ω5 pos. and 5 neg. yes A

EN 50155: G58400 Vp0.05/ 0 .1 µs 100 Ωimpulses

Indirect coupled 1995 H –o/c, +o/–o, –o/–i 1800 Vp5/50 µs

transients L 8400 Vp0.05/ 0.1 µs

Electrostatic IEC/EN 46contact discharge ±8000 Vp1/50 ns 330 Ω10 positive and yes A

discharge 61000-4-2 air discharge ±15000 Vp10 negative

(to case) discharges

Electromagnetic IEC/EN x7antenna 20 V/m 80% AM, 1 kHz n.a. 80 – 1000 MHz yes A

field 61000-4-3 8antenna 20 V/m 80% AM, 1 kHz n.a. 800 – 1000 MHz yes A

10 V/m 1400 – 2100 MHz

5 V/m 2100 – 2500 MHz

Electrical fast IEC/EN 39 direct coupl. (fig. 9)9±2000 Vp9bursts of 5/50 ns 50 Ω60 s positive yes A

transients/burst 61000-4-4: 4+i/c,

–

i/c,+i/

–

i±4000 Vp5 kHz over 15 ms 60 s negative yes B

2004 burst period: 300 transients per

3 capacit. (fig. 1 0)9, o/c ±2000 Vpm s coupling mode yes B

Surges IEC/EN 33+i/c, –i/c ±2000 Vp31.2/50 µs 12 Ω5 pos. and 5 neg. yes B

61000-4-5 23+i/–i ±1000 Vp32 Ωsurges per

coupling mode

FTZ 19 P fl 1 10 +i/–i 150 Vp0.1/0.3 ms <100 A 3 pos. 5 repetitions yes A

Conducted IEC/EN 311 i, o, signal wires 10 VAC AM 80% 150 Ω0.15 – 80 MHz yes A

disturbances 61000-4-6 (140 dBµV) 1 kHz

Power frequency IEC/EN 12 100 A/m 60 s in all 3 axis yes A

magnetic field 6 1000-4-8

1i = input, o = output, c = case.

2A = Normal operation, no deviation from specs, B = Temporary deviation from specs possible.

3Measured with an external input capacitor specified in table 4. Exceeds EN 50121-3-2:2006 table 7.3 and EN 50121-4:2006 table 2.3.

4Corresponds to EN 50155:2001, waveform A, and EN 50121-3-2:2000 table 7.2.

5Corresponds to EN 50155:2001, waveform B.

6Exceeds EN 50121-3-2:2006 table 9.3 and EN 50121-4:2006 table 1.4.

7Corresponds to EN 50121-3-2:2006 table 9.1 and exceeds EN 50121-4:2006 table 1.1; valid for version V104 or higher.

8Corresponds to EN 50121-3-2:2006 table 9.2 and EN 50121-4:2006 table 1.2 (compliance with digital mobile phones). Valid for converters

with version V104 or higher.

9Corresponds to EN 50121-3-2:2006 table 7.2 and EN 50121-4:2006 table 2.2; valid for converters with version V104 or higher.

10 Valid for 48Q and CQ only.

11 Corresponds to EN 50121-3-2:2006 table 7.1 and EN 50121-4:2006 table 3.1 (radio frequency common mode).

12 Corresponds to EN 50121-4:2006 table 1.3; valid for converters with version V104 or higher.

Q Series Data Sheet

66 – 132 Watt DC-DC Converters

BCD20011-G Rev AG, 12-Mar-2012 Page 20 of 26 www.power-one.com

JM023b

30 50 100 200 500 1000 MHz

TÜV-Divina, ESVS 30:R&S, BBA 9106/UHALP 9107:Schwarzb., QP, 2009-04-17

Testdistance 10 m, EQ2660-7R V104, Ui=110 V, Uo=24 V Io= 4.4 A

EN 55011 A

dBµV/m

< 30 dB(µV/m)

30 50 100 200 500 1000 MHz

dBµV/m

EN 55011 A

TÜV-Divina, ESVS 30:R&S, BBA 9106/UHALP 9107:Schwarzb., QP, 2009-04-21

Testdistance 10 m, BQ2660-7R V104, Ui=24 V, Uo=24 V Io= 4.4 A

JM022a

< 30 dB(µV/m)

PMM 8000 PLUS: Peak, conducted Vi+, Clp 2007-06-07, 14:46 h

BQ1001-7R V104, Ui=24 V, Uo=5.1 V, Io= 16 A, decoupled load

JM019

dBµV

EN 55022 B

0.2 0.5 1 2 5 10 20 MHz

Electromagnetic Emissions

Table 14: Emissions at Vi nom and Io nom

Model Class accord. to EN 55011 and EN 55022

Conducted 0. 15 – 30 MHz Radiated 30 – 1000 MHz

BQ B A

48Q/CQ B A

DQ A A

EQ A A

GQ B A

Note: Outputs lines decoupled with ferrite cores allow compliance

with class B for radiated emissions.

All conducted emissions (fig. 23) have been tested according

to IEC/EN 55022 (similar to EN 55011, much better values

than requested by EN 50121-3-2, table 3.1). The limits in fig.

23 apply to quasipeak values, which are always lower then

peak values.

In addition, the values for average must keep a limit 10 dBµV

below the limits in fig. 23 (not shown).

Fig. 23a

Conducted peak disturbances at the input: BQ1001-7R V104,

Vi nom, Io nom, decoupled load lines

PMM 8000 PLUS: Peak, conducted Vi+, Clp 2007-06-07, 15:38 h

CQ2320-7R V104, Ui=48 V, Uo=12 V Io= 8 A, decoupled load

JM020

dBµV

EN 55022 B

0.2 0.5 1 2 5 10 20 MHz

Fig. 23b

Conducted peak disturbances at the input: CQ2320-7R V104,

Vi nom, Io nom, outputs parallel connected, decoupled load lines

PMM 8000 PLUS: Peak, conducted Vi+, Clp 2007-06-05, 15:15 h

EQ2660-7R V102, Ui=110 V, Uo=24 V Io= 4 A, decoupled load

dBµV

JM021

EN 55011 B

0.2 0.5 1 2 5 10 20 MHz

Fig. 23c

Conducted peak disturbances at the input: EQ2320-7R V102,

Vi nom , Io nom, outputs parallel connected, decoupled load lines

Radiated emissions have been tested according to IEC/EN

55011 (similar to EN 55022), as requested in EN 50121-3-2,

table 6.1. The test is executed with horizontal and vertical

polarization. The worse result is shown in fig. 24.

Fig. 24a

Radiated disturbances in 10 m distance: BQ2660-7R V104,

Vi nom, Io nom

Fig. 24b

Radiated disturbances in 10 m distance: EQ2660-7R V104,

Vi nom, Io nom

Q Series Data Sheet

66 – 132 Watt DC-DC Converters

BCD20011-G Rev AG, 12-Mar-2012 Page 21 of 26 www.power-one.com

Reliability

Table 17: MTBF and device hours

Ratings at specified Models Ground Ground fixed Ground Naval, Device Unit

benign mobile sheltered hours 1

Case Temperature 40 °C 40 °C 70 °C 50 °C 40 °C

MTBF according to CQ1000 588 000 196 000 96 000 74 000 6 400 000 h

MIL-HDBK-217F

MTBF according to BQ1001-9R 908 000 243 000 160 000 98 000 192 000

MIL-HDBK-217F, notice 2 BQ2000 853 000 164 000 65 100 57 700 152 000

EQ2660-9R 913 000 237 000 155 000 97 000 188 000

1Statistical values, based on an average of 4300 working hours per year and in general field use over 5 years; upgrades and customer-

induced errors are excluded.

Temperatures

Table 16: Temperature specifications, valid for an air pressure of 800 - 1200 hPa (800 - 1200 mbar)

Temperature -2 -7 (Option) -9 Unit

Characteristics Conditions min typ max min typ max min typ max

TAAmbient temperature Converter operating – 10 50 – 2 5 711–40 711°C

TCCase temperature –10 80 – 25 951 2 –40 951 2

TSStorage temperature Non operational – 25 100 –40 100 –55 100

1See Thermal Considerations. Operation with Po max requires a reduction to TA max = 50 °C and TC max = 85 °C.

2Overtemperature lockout at TC >95 °C (PTC).

Immunity to Environment al Conditions

Table 15: Mechanical and climatic stress

Test method Standard Test conditions Status

Cab Damp heat IEC/EN 60068-2-78 Temperature: 40 ±2 °C Converter

steady state MIL-STD-810D section 507.2 Relative humidity: 93 +2/-3 % not

Duration: 56 days operating

Kb Salt mist, cyclic IEC/EN 60068-2-52 Concentration: 5% (30 °C) for 2 h Converter

(sodium chloride Storage: 40°C, 93% rel. humidity for not

NaCl solution) Duration: 3 cycles of 22 h operating

Fc Vibration IEC/EN 60068-2-6 Acceleration amplitude: 0.35 mm (10 – 60 Hz) Converter

(sinusoidal) MIL-STD-810D section 514.3 5 gn = 49 m/s2 (60 - 2000 Hz) operating

Frequency (1 Oct/ min): 10 – 2000 Hz

Test duration: 7.5 h (2.5 h in each axis)

Fh Random vibration IEC/EN 60068-2-64 Acceleration spectral density: 0.05 gn2/Hz Converter

broad band Frequency band: 8 – 500 Hz operating

(digital control) and Acceleration magnitude: 4.9 gn rms

guidance Test duration: 1.5 h (0.5 h in each axis)

Eb Bump IEC/EN 60068-2-29 Acceleration amplitude: 25 gn = 245 m/s2Converter

(half-sinusoidal) MIL-STD-810D section 516.3 Bump duration: 6 ms operating

Number of bumps: 6000 (1000 in each direction)

Ea Shock IEC/EN 60068-2-27 Acceleration amplitude: 50 gn = 490 m/s2Converter

(half-sinusoidal) MIL-STD-810D section 516.3 Bump duration: 11 ms operating

Number of bumps: 18 (3 in each direction)

-- Shock EN 50155:2007 sect. 12.2.11, Acceleration amplitude: 5.1 gnConverter

EN 61373 sect. 10, Bump duration: 30 ms operating

class B, body mounted1Number of bumps: 18 (3 in each direction)

-- Simulated long life EN 50155:2007 sect. 12.2.11, Acceleration spectral density: 0.02 gn2/Hz Converter

testing at EN 61373 sect. 8 and 9, Frequency band: 5 – 150 Hz operating

increased random class B, body mounted1Acceleration magnitude: 0.8 gn

rms

vibration levels Test duration: 15 h (5 h in each axis)

1Body mounted = chassis of a railway coach

Q Series Data Sheet

66 – 132 Watt DC-DC Converters

BCD20011-G Rev AG, 12-Mar-2012 Page 22 of 26 www.power-one.com

104

111

105

127

(164)

19.8

M3; 4 deep

Measuring point of

case temperature T

20.32 (4 TE)

13.43

100

5.5

LED "In-OK" green

Potentiometer (option P)

Test sockets

LED "Out-OK" green

171.0 ... 171.9 **)

Front plate

Rear-

face

Main-

face

Back plate

104

84.3

77.95

72.87

65.35

59.23

11.44

8.14

6.4

= ∅ 4.2

= ∅ 3.4

= ∅ 3

Not fitted to 48Q models

pin 4

AIRFLOW

160.3

Front plate

Rear-

face

38.8 *)

19.8

Standard Opt. B1

*) 32.3 mm for opt. B

09066g

**) 231.0 ...231.9 mm

for long case

(add 5000 to the

part number)

A B C D

H G F E KeyCode System

Mechanical Data

The converters are designed to be

inserted into a 19" rack according to

IEC 60297-3. Dimensions are in mm.

Notes:

Long case, elongated by 60 mm for 220 mm rack depth is available

on request. Add 5000 to the standard part number.

An additional heat sink (option B1) is available; it reduces the case

temperature TC, and allows more output power at higher ambient

temperature TA.

Fig. 25

Case Q01,

weight approx. 500 g;

aluminum, fully

enclosed,

black finish, and self

cooling

European

Projection

Q Series Data Sheet

66 – 132 Watt DC-DC Converters

BCD20011-G Rev AG, 12-Mar-2012 Page 23 of 26 www.power-one.com

Safety and Installation Instructions

Connector Pin Allocation

The connector pin allocation table defines the electrical

potentials and the physical pin positions on the H15 connector .

Pin no. 26, the protective earth pin, is a leading pin, ensuring

that it makes contact with the female connector first.

Table 18: Pin allocation of the H15 connector

Pin Electrical determination Q1000 Q2000

4 Output voltage (positive) Vo+ Vo1+

6 Output voltage (positive) Vo+ Vo2+

8 Output voltage (negative) Vo– Vo1–

10 Output voltage (negative) Vo– Vo2–

12 Sense line (positive) 2 S+ S+

14 Sense line (negative) 2 S– S–

16 Output voltage control input 1 R 1 R 1

18 Current sharing control input T T

20 Do not connect (internal Gnd.) -- --

22 Output good signal (positive) Out-OK+ Out-O K+

24 Output good signal (negative) Out-OK– Out-OK–

26 Protective earth PE 2

28 Inhibit control input 3 ii

30 Input voltage (positive) Vi + Vi+

32 Input voltage (negative) Vi– Vi–

1Do not connect pin 16 for models with 3.3 V output or opt. P !

2Leading pin (pre-connecting).

3If not actively used, connect with pin 32.

The Vi– input (pin 32) is internally fused. This fuse is designed

to protect in case of overcurrent and may not be able to satisfy

all customer requirements. External fuses in the wiring to one

or both input pins (no. 30 and/or no. 32) may therefore be

necessary to ensure compliance with local requirements.

Important:

• If the inhibit function is not used, pin 28 (i) must be connected

with pin 32 (Vi–) to enable the output(s).

• Do not open the converters, or warranty will be invalidated.

• Long input, output and auxiliary lines, or lines with inductors,

filters or coupling/decoupling networks may cause instabilities.

See Input Stability with Long Supply Lines.

Due to high output currents, the Q1001/1101 models offer two

internally parallel-connected contact s for both, the positive and

the negative output path (pins 4/6 and pins 8/10). It is

recommended to connect the load to both female connector

pins of each path in order to keep the voltage drop across the

connector pins to a minimum.

Make sure that there is sufficient air flow available for

convection cooling. This should be verified by measuring the

case temperature when the converter is installed and operated

in the end user application. The maximum specified case

temperature TC max shall not be exceeded. See also Thermal

Considerations.

Ensure that a converter failure (e.g. by an internal short-circuit)

does not result in a hazardous condition. See also Safety of

Operator-Accessible Output Circuits.

Cleaning Agents

In order to avoid possible damage, any penetration of cleaning

fluids must be prevented, since the power supplies are not

hermetically sealed.

Protection Degree

Condition: Female connector fitted to the converters.

IP 30: All models, except those with option P (potentiometer).

IP 20: All models fitted with option P.

Standards and Approvals

The Q Series converters correspond to class I equipment.

They are safety agency approved to UL/CSA 60950-1 and

IEC/EN 60950-1 2nd Edition.

The converters have been evaluated for:

•Class I equipment

•Building in

•Basic insulation between input and case and double or

reinforced insulation between input and output, based on

their maximum rated input voltage

•Basic insulation between Out-OK and case, and double or

reinforced insulation between Out-OK and input, and

between Out-OK and output, based on their maximum rated

input voltage

•Functional insulation between outputs and output to case

•Use in a pollution degree 2 environment

Fig. 26

View of male H15 connector

Installation Instructions

The Q Series converters are components, intended

exclusively for inclusion within other equipment by an

industrial assembly operation or by professional installers.

Installation must strictly follow the national safety regulations

in compliance to enclosure, mounting, creepage, clearance,

casualty, markings and segregation requirements of the end-

use application.

Connection to the system shall be made via the female

connector H15 (see Accessories). Other installation methods

may not meet the safety requirements.

The Q Series converters are provided with pin 26 ( ), which is

reliably connected to the case. For safety reasons it is

essential to connect this pin to protective earth; see Safety of

Operator-Accessible Output Circuits.

32 28 24 20 16 12 8 4

30 26 22 18 14 10 6

10025a

Q Series Data Sheet

66 – 132 Watt DC-DC Converters

BCD20011-G Rev AG, 12-Mar-2012 Page 24 of 26 www.power-one.com

AC-DC

front

end

DC-DC

con-

verter

Mains

Fuse

Battery

Earth

connection

Suppressor

diode SEL

Earth

connection

–

1002

Fuse

Earth

connection

Fig. 27

Schematic safety concept

Use fuse, suppressor diode and earth connections as per

table 21. For fuse(s), required by the application; see

Installation Instructions.

Table 19: Isolation

Characteristic Input to Output(s) to Output Out-OK to Out-OK Unit

case + output(s) case to output case + input to output(s)

Electric Factory test ≥1 s 2.1 1 2.1 0.5* 2.1 1 2.1 1 kVDC

strength AC test voltage equivalent 1.5 1 1.5 0.35* 1.5 1 1.5 1 kVAC

tests to factory test

Insulation resistance >300 2 >300 2 >100 >300 2 >300 2 MΩ

Minimum creepage distances 1.4 3 1.4 mm

* Models with version V104 or higher. Older converters have only been tested with 0.3 kVDC.

1In accordance with EN 50116 and IEC/EN 60950, subassemblies connecting input to output are pre-tested with 4.2 kVDC.

2Tested at 500 VDC.

32.8 mm between input and output.

•Connecting the input to a circuit, which is subject to a

maximum transient rating of 1500 V.

CB Scheme is available.

The converters are subject to manufacturing surveillance in

accordance with the above mentioned standards and with ISO

9001:2000.

Railway Applications

The Q Series converters have been designed by observing the

railway standards EN 50155, EN 50121-3-2, and EN 50121-4.

All boards are coated with a protective lacquer.

The converters comply with class S1 of the fire protection

standard E DIN 5510-2 (Oct. 2007).

Isolation and Protective Earth

The test of the resistance of the protective earthing circuit

(max. 0.1 Ω) and the electric strength test (table 19) are

performed in the factory as routine tests in accordance with EN

50116 and IEC/EN 60950-1, and should not be repeated in the

field. Power-One will not honor any warranty claims resulting

from electric strength field tests.

Safety of Operator-Accessible Output Circuits

If the output circuit of a DC-DC converter is operator-

accessible, it shall be an SELV circuit according to IEC 60950.

Table 21 shows some possible installation configurations,

compliance with which causes the output circuit of the DC-DC

converter to be SELV up to a configured output voltage (sum of

nominal voltages, if in series configuration) of 35 V.

However, it is the sole responsibility of the installer to ensure

the compliance with the relevant and applicable safety

regulations.

Description of Options

Option P: Output Voltage Adjustment

Option P provides a built-in multi-turn potentiometer, which

allows an output voltage adjustment of ±10% of Vo nom. The

potentiometer is accessible through a hole in the front cover.

With double-output models, both outputs are affected by the

potentiometer. If converters are parallel-connected, their in-

dividual output voltage should be set within a tolerance of ±1%.

If Vo is set higher than Vo nom, the output currents should be

reduced accordingly, so that the maximum specified output

power is not exceeded.

Option -7: Temperature Range

Option -7 designates converters with an operational ambient

temperature range of –25 to 71 °C. Not for new designs.

Option B, B1: Additional Heat Sink

Thickness: 12.5 mm (opt. B) or 20 mm (opt. B1)

Table 20: Thermal resistance case to ambient (approx. values)

Case

Thermal re si stanc e

Thickness of case

Standard (160 mm long) 1.6 K/W < 20 mm

Case 220 mm long1 2 1.4 K/W < 20 mm

Option B21.45 K/W < 33 mm

Option B1 1.4 K/W < 40 mm

1As well available with an additional heat sink

2Customer-specific models. Add 5000 to the part number!

Option G:

RoHS compliant for all six substances.

Q Series Data Sheet

66 – 132 Watt DC-DC Converters

BCD20011-G Rev AG, 12-Mar-2012 Page 25 of 26 www.power-one.com

Table 21: Safety concept leading to an SELV output circuit

Conditions Front end DC-DC converter Result

Nominal Minimum required grade Maximum DC Minimum required Types Measures required t o achieve Safety

status

supply of insolation, to be pro- output voltage safety status of the the specified safety status of of the

DC-DC

voltage vided by the AC-DC front from the front front end output the output circuit converter

end, including mains- end 1 circuit output

supplied battery charger circuit

Mains Functional (i.e. there is ≤150 V 2 Primary circuit DQ Double or reinforced insula- SELV circuit

≤150 VAC no need for electrical iso- EQ tion, based on 150 VAC and

lation between the mains DC (provided by the con-

supply circuit and the verter) and earthed case 3

DC-DC converter input

circuit)

Basic ≤60 V ELV circuit BQ, GQ Supplementary insulation,

48Q based on 150 VAC (provided

CQ by the DC-DC converter)

and earthed case 3

≤75 V Hazardous voltage 48Q Supplementary insulation,

secondary circuit CQ based on 150 VAC and

double or reinforced insula-

tion 4 (both provided by the

DC-DC converter) and

earthed case 3

Mains ≤60 V Earthed SELV BQ, GQ Functional insulation (provided

≤250 VAC circuit 3 48Q, CQ by the converter)

ELV circuit Input fuse 5

, output suppressor Earthed

≤75 V Unearthed 48Q diodes 6, earthed output SELV circuit

hazardous voltage CQ circuit 3 and earthed 3 or non

secondary circuit user-accessible case

≤150 V 2 Earthed hazardous BQ, GQ Double or reinforced SELV circuit

voltage secondary 48Q, CQ insulation 4 (provided by

circuit 3 or earthed DQ the converter)

ELV circuit 3 EQ and earthed case 3

Unearthed DQ Supplementary insulation, ba-

hazardous voltage EQ sed on 250 VAC and double

secondary circuit or reinforced insulation 4 (both

provided by the converter)

and earthed case 3

Double or reinforced ≤60 V SELV circuit BQ, 48Q Functional insulation (provi-

CQ, GQ ded by the converter)

≤120 V TNV-2 circuit 48Q, CQ Basic insulation 4 (provided

≤150 V 2 Double or re-infor- DQ by the converter)

ced insulated un- EQ

earthed hazardous

voltage secondary

circuit 7

1The front end output voltage should match the specified input voltage range of the DC-DC converter.

2The maximum rated input voltage of EQ models acc. to IEC/EN 60950 is 150 V. Power-One specifies the tolerance as +12% (max. 168 V)

3The earth connection has to be provided by the installer according to IEC/EN 60950.

4Based on the maximum rated output voltage provided by the front end.

5The installer shall provide an approved fuse with the lowest rating suitable for the application in a non-earthed input conductor directly at

the input of the DC-DC converter (see fig. Schematic safety concept). For UL’s purposes, the fuse needs to be UL-listed.

6Each suppressor diode should be dimensioned such that in the case of an insulation fault the diode is able to limit the output voltage to

SELV (<60 V), until the input fuse blows (see fig. Schematic safety concept).

7Has to be insulated from earth according to IEC/EN 60950, by at least supplementary insulation, based on the maximum nominal output

voltage from the front end.

Q Series Data Sheet

66 – 132 Watt DC-DC Converters

BCD20011-G Rev AG, 12-Mar-2012 Page 26 of 26 www.power-one.com

NUCLEAR AND MEDICAL APPLICA TIONS - Power-One products are not designed, intended for use in, or authorized for use as critical components

in life support systems, equipment used in hazardous environments, or nuclear control systems without the express written consent of the

respective divisional president of Power-One, Inc.

TECHNICAL REVISIONS - The appearance of products, including safety agency certifications pictured on labels, may change depending on the

date manufactured. Specifications are subject to change without notice.

Brackets for DIN-

rail and chassis

mounting

H15 female connector,

code key system

Connector

retention clip (only

in conjunction with

mounting plate Q)

Accessories

A wide variety of electrical and mechanical accessories are

available:

•Various mating connectors including fast-on, screw, solder

or press-fit terminals, code key system

•Connector retention brackets CRB-Q [HZZ01217]

•Cable connector housing (cable hood) KSG-H15/H15S4

[HZZ00141], also available with fixation

•Various front panels wide 4, 5, or 6 TE for 19" racks with

3U heigth. Front panels with 5 or 6 TE width provide some

space between the converters for better cooling.

•System kit for 19" racks with 6U, width 5 TE, including a

support bracket, Kit G05-6HE-Q01 [HZZ01217]

•Mounting plate MOUNTINGPLATE-Q [HZZ01215] for wall

mounting, with optional connector retention clips

RETENTIONCLIP(2X) [HZZ01209]

•Brackets for DIN-rail mounting UMB-LHMQ [HZZ00610]

•Additional external input and output filters

•Battery sensor [S-KSMH...] for using the converter as

battery charger. Different cell characteristics can be

selected.

For additional accessory product information, see the

accessory data sheets listed with each product series or

individual model at www.power-one.com.

System kit for

19" rack, 6U.

Mounting plate Q for

wall mounting with

fitted connector

retention clip

Connector

retention

bracket

CRB-Q

Mounting plate Q with fitted metallic cable

hood with fastening screws