PKM4610PI - Ericsson Microelectronics

PKM 4000 PI

15-20A DC/DC Power Modules

48V Input, (1.5V-1.8V-2.5V-3.3V-5V) Outputs

• High efficiency 92% Typ (5V) at full load

• Fast dynamic response, 100µs,

- 150 mVpeak Typ

• Low output ripple, 60 mVp-p Typ

• High power density, 44 W/in3 (5.0V)

• Wide input voltage range (36-75V)

• Industry standard footprint & pin-out

• 1,500Vdc isolation voltage

• Max case temperature +100ºC

• UL 1950/ULc1950 Recognized

• TUV to EN60 950 Type Approved

The PKM 4000 series represents a “third generation” of High

Density DC/DC Power Modules in an industry standard quarter-

brick package with unparalleled power densities and efficiencies.

These breakthrough performance features have been achieved by

using the most advanced patented topology, utilizing integrated

magnetics and synchronous rectification on a low resistivity

multilayer PCB. The product features fast dynamic response

times and low output ripple, which are important parameters

when supplying low voltage logics. The PKM 4000 series is

especially suited for limited board space and high dynamic load

applications such as demanding microprocessors.

Ericsson’s PKM 4000 Power Modules address the converging

“New Telecoms” market by specifying the input voltage range

in accordance with ETSI specifications. The PKM 4000 series

also offers over-voltage protection, under-voltage protection,

over-temperature protection, soft-start, and is short circuit proof.

These products are manufactured using highly automated

manufacturing lines with a world-class quality commitment

and a five-year warranty. Ericsson Inc., Microelectronics has

been an ISO 9001 certified supplier since 1991.

For a complete product program please reference the back page.

Data Sheet AE/LZT 108 4913 R2 © Ericsson Inc., Microelectronics, May 2001

Characteristics min max Unit

TCMaximum Operating Case Temperature -40 +100 °C

TSStorage temperature -40 +125 °C

VIInput voltage -0.5 +80 Vdc

VISO Isolation voltage 1,500 Vdc

(input to output test voltage)

VRC Remote control voltage 12 Vdc

I2t Inrush transient 1 A2s

Characteristics Conditions min typ max Unit

VIInput voltage 36 75 Vdc

range

VIoff Turn-off input Ramping from 31 33 Vdc

voltage higher voltage

VIon Turn-on input Ramping from 34 36 Vdc

voltage lower voltage

CIInput capacitance 1.5 µF

IIac Reflected 5 Hz to 20 MHz 10 mA p-p

ripple current

IImax Maximum input VI= VImin 75 W 1.8 A

current 100 W 2.3

PIi Input idling power IO= 0 2.6 4.6 W

PRC Input

stand-by power VI= 50V RC open 0.4 0.6 W

(turned off with RC)

VTRIM Maximum input 6 Vdc

voltage on trim pin

Characteristics Test procedure & conditions

Random IEC 68-2-34FcFrequency 10...500 Hz

Vibration Spectral density 0.025 g2/Hz

Duration 10 min in each

direction

Sinusoidal IEC 68-2-6 Fc Frequency 10-500 Hz

Vibration Amplitude 0.75mm

Acceleration 10g

Number of cycles 10 in each axis

Shock IEC 68-2-27 EaPeak acceleration 100 g

(half sinus) Duration 3ms

Temperature IEC 68-2-14 NaTemperature -40°C...+100°C

change Number of cycles 300

Accelerated IEC 68-2-3 Ca Temperature 85°C

damp heat with bias Humidity 85% RH

Duration 1000 hours

Solder IEC 68-2-20 Tb Temperature, solder 260° C

resistibility method IA Duration 10...13 s

General

Absolute Maximum Ratings

Input TC < TCmax

Environmental Characteristics

Stress in excess of Absolute Maximum Ratings may cause

permanent damage. Absolute Maximum Ratings,

sometimes referred to as no destruction limits, are

normally tested with one parameter at a time exceeding

the limits of Output data or Electrical Characteristics.

If exposed to stress above these limits, function and

performance may degrade in an unspecified manner.

For design margin and to enhance system reliability, it is

recommended that the PKM 4000 series DC/DC power

modules are operated at case temperatures below 90°C.

Safety

The PKM 4000 Series DC/DC power modules are

designed in accordance with EN 60 950, Safety of

Information Technology Equipment Including

Electrical Business Equipment and are TUV Type

Approved.

The PKM 4000 DC/DC power modules are also

recognized by UL and meet the applicable

requirements in UL 1950, Safety of Information

Technology Equipment and applicable Canadian

safety requirements, i.e. ULc 1950.

The isolation is an operational insulation in

accordance with EN 60 950. The DC/DC power

module should be installed in end-use equipment,

in compliance with the requirements of the

ultimate application, and is intended to be

supplied by an isolated secondary circuit.

Consideration should be given to measuring the

case temperature to comply with TCmax when in

operation.

When the supply to the DC/DC power

module meets all the requirements for SELV

(<60Vdc), the output is considered to remain

within SELV limits (level 3). If connected to a 60V

DC power system, reinforced insulation must be

provided in the power supply that isolates the

input from the mains. Single fault testing in the

power supply must be performed in combination

with the DC/DC power module to demonstrate

that the output meets the requirement for SELV.

One pole of the input and one pole of the output is

to be grounded or both are to be kept floating.

Data Sheet AE/LZT 108 4913 R2 © Ericsson Inc., Microelectronics, May 2001

Designation Function Pin # (for ref.)

-IN Negative input 1

ON/OFF Remote control (primary). To turn-on 2

and turn-off the output

+IN Positive input 3

-OUT Negative output 4

-SEN Negative remote sense 5

Trim Output voltage adjust 6

+SEN Positive remote sense 7

+OUT Positive output 8

Connections

Weight

55 grams

Case

Aluminum baseplate with metal standoffs.

Pins

Pin material: Brass

Pin plating: Tin/Lead over Nickel.

Mechanical Data

Safety (continued)

The galvanic isolation is verified in an electric strength test. The

test voltage (VISO) between input and output is 1,500 Vdc or 60 sec.

Leakage current is less than 1µA @ 50Vdc.

Flammability ratings of the terminal support and internal plastic

construction details meet UL 94V-0.

A fuse should be used at the input of each PKM 4000 series power

module. If a fault occurs in the power module, that imposes a short

on the input source, this fuse will provide the following two functions:

• Isolate the failed module from the input source so that the

remainder of the system may continue operation.

• Protect the distribution wiring from overheating.

A fast blow fuse should be used with a rating of 10A or less. It is

recommended to use a fuse with the lowest current rating, that is

suitable for the application.

4Data Sheet AE/LZT 108 4913 R2 © Ericsson Inc., Microelectronics, May 2001

0102030405060708090100

Output Current Derating (No Heatsink) for 1.5V/20A

PKM4318PIOA

2.0 m/s

1.5 m/s

1.0 m/s

0.5 m/s

0.2 m/s

Natural Convection

3.0 m/s

2.5 m/s

0 1020304050 60708090100

Output Current Derating (No Heatsink) for 1.5V/15A

PKM4218PIOA

2.0 m/s

2.5 m/s

3.0 m/s

1.5 m/s

1.0 m/s

0.5 m/s

0.2 m/s

Natural Convection

0102030405060708090100

Output Current Derating (No Heatsink) for 1.8V/20A

PKM4318PI

2.0 m/s

1.5 m/s

1.0 m/s

0.5 m/s

0.2 m/s

Natural Convection

3.0 m/s

2.5 m/s

0 1020304050 60708090100

Output Current Derating (No Heatsink) for 1.8V/15A

PKM4218PI

2.0 m/s

2.5 m/s

3.0 m/s

1.5 m/s

1.0 m/s

0.5 m/s

0.2 m/s

Natural Convection

0 1020304050 60708090100

Output Current Derating (No Heatsink) for 2.5V/20A

PKM4519PI

2.0 m/s

1.5 m/s

1.0 m/s

0.5 m/s

0.2 m/s

Natural Convection

3.0 m/s

2.5 m/s

0 1020304050 60708090100

Output Current Derating (No Heatsink) for 2.5V/15A

PKM4319PI

2.0 m/s

2.5 m/s

3.0 m/s

1.5 m/s

1.0 m/s

0.5 m/s

0.2 m/s

Natural Convection

Airflow Conversion Table

m/s lfm

0.5 100

1.0 200

1.5 300

2.0 400

2.5 500

3.0 600

Note: Natural Convection average airflow speed can vary from 0.05 m/s to 0.2 m/s.

Thermal Data

The PKM 4000 series DC/DC power modules has a robust thermal

design which allows operation at case (baseplate) temperatures (TC)

up to +100°C. The main cooling mechanism is convection (free or

forced) through the case or optional heatsinks.

The graphs below show the allowable maximum output current to

maintain a maximum +100°C case temperature. Note that the ambient

temperature is the air temperature adjacent to the power module which

is typically elevated above the room environmental temperature.

0 1020304050 60708090100

Output Current Derating (No heatsink) for 3.3V

PKM 4610PI and PKM 4510PI

1.5 m/s

1.0 m/s

0.5 m/s

0.2 m/s

Natural Convection

3.0 m/s

2.5 m/s

2.0 m/s

0102030405060708090100

Output Current Derating (No Heatsink) for 5V

PKM4111PI and PKM4711PI

1.0 m/s

0.5 m/s

0.2 m/s

Natural Convection

3.0 m/s

2.5 m/s

2.0 m/s

1.5 m/s

Data Sheet AE/LZT 108 4913 R2 © Ericsson Inc., Microelectronics, May 2001

Thermal Data

The graphs below can be used to estimate case temperatures

for given system operating conditions (see Thermal Design).

For further information on optional heatsinks, please contact

your local Ericsson sales office.

0 10 20 30 40 50 60 70 80 90 100

Allowable Power Dissipation vs. Ambient Temp for 1.5V

PKM4318PIOA and PKM4218PIOA

2.0 m/s

1.5 m/s

1.0 m/s

0.5 m/s

0.2 m/s

Natural Convection

3.0 m/s

2.5 m/s

0 1020304050 60708090100

Allowable Power Dissipation vs. Ambient Temp for 1.8V

PKM4318PI and PKM4218PI

2.0 m/s

1.5 m/s

1.0 m/s

0.5 m/s

0.2 m/s

Natural Convection

3.0 m/s

2.5 m/s

All Bending Points

are at 5.5W

0 1020304050 60708090100

Allowable Power Dissipation vs. Ambient Temp for 3.3V

PKM 4610PI and PKM 4510PI

1.5 m/s

1.0 m/s

0.5 m/s

0.2 m/s

Natural Convection

3.0 m/s

2.5 m/s

2.0 m/s

0 1020304050 60708090100

Allowable Power Dissipation vs. Ambient Temp for 2.5V

PKM4519PI and PKM4319PI

1.0 m/s

0.5 m/s

0.2 m/s

Natural Convection

3.0 m/s

2.5 m/s

2.0 m/s

1.5 m/s

All Bending Points

are at 6W

0 1020304050 60708090100

Allowable Power Dissipation vs. Ambient Temp for 5V

PKM4111PI and PKM4711PI

1.0 m/s

0.5 m/s

0.2 m/s

Natural Convection

3.0 m/s

2.5 m/s

2.0 m/s

1.5 m/s

Note: For conversion from m/s to lfm please see conversion table on pg. 4.

6Data Sheet AE/LZT 108 4913 R2 © Ericsson Inc., Microelectronics, May 2001

Thermal Data

0 5 10 15

Power Dissipation vs. Output Current for 1.5V/15A

PKM4218PIOA

Vi=72v

Vi=60v

Vi=48v

Vi=36v

Power Dissipation (W)

Output Current (A)

0 5 10 15 20

Power Dissipation vs. Output Current for 1.8V/20A

PKM4318PI

Vi=72v

Vi=60v

Vi=48v

Vi=36v

Power Dissipation (W)

Output Current (A)

0 5 10 15

Power Dissipation vs. Output Current for 1.8V/15A

PKM4218PI

Vi=72v

Vi=60v

Vi=48v

Vi=36v

Power Dissipation (W)

Output Current (A)

0 5 10 15 20

Power Dissipation vs. Output Current for 2.5V/20A

PKM4519PI

Vi=72v

Vi=60v

Vi=48v

Vi=36v

Power Dissipation (W)

Output Current (A)

0 5 10 15

Power Dissipation vs. Output Current for 2.5V/15A

PKM4319PI

Vi=72v

Vi=60v

Vi=48v

Vi=36v

Power Dissipation (W)

Output Current (A)

0 5 10 15 20

Power Dissipation vs. Output Current for 1.5V/20A

PKM4318PIOA

Vi=72v

Vi=60v

Vi=48v

Vi=36v

Power Dissipation (W)

Output Current (A)

Data Sheet AE/LZT 108 4913 R2 © Ericsson Inc., Microelectronics, May 2001

0 5 10 15

Power Dissipation vs. Output Current for 3.3V/15A

PKM4510PI

Vi=72v

Vi=60v

Vi=48v

Vi=36v

Power Dissipation (W)

Output Current (A)

0 5 10 15 20

Power Dissipation vs. Output Current for 5V/20A

PKM4111PI

Vi=72v

Vi=60v

Vi=48v

Vi=36v

Power Dissipation (W)

Output Current (A)

0 5 10 15

Power Dissipation vs. Output Current for 5V/15A

PKM4711PI

Vi=72v

Vi=60v

Vi=48v

Vi=36v

Power Dissipation (W)

Output Current (A)

Thermal Data

0 5 10 15 20

Power Dissipation vs. Output Current for 3.3V/20A

PKM4610PI

Vi=72v

Vi=60v Vi=48v

Vi=36v

Power Dissipation (W)

Output Current (A)

8Data Sheet AE/LZT 108 4913 R2 © Ericsson Inc., Microelectronics, May 2001

0 0.5 1 1.5 2 32.5

Air Flow (m/s)

Case to Ambient Thermal Resistance

PKM 4000 Series

Thermal Design

The thermal data can be used to determine thermal performance

without a heatsink.

Case temperature is calculated by the following formula:

TC= TA+ Pdx RthC-A (˚C/W)where Pd= PO(1/η- 1)

Where:

TC: Case Temperature

TA: Local Ambient Temperature

Pd: Dissipated Power

RthC-A: Thermal Resistance from TCto TA

Po: Output Power

η: Efficiency

The efficiency ηcan be found in the tables on the following pages.

For design margin and to enhance system reliability, it is recommended

that the PKM 4000 series DC/DC power modules are operated at case

temperatures below 90°C.

Data Sheet AE/LZT 108 4913 R2 © Ericsson Inc., Microelectronics, May 2001

PKM 4318 PIOA (30W)

TC= -40...+100°C, VI= 36...75V dc unless otherwise specified.

Characteristics Conditions Output

min typ max Unit

VOi Output voltage initial TC= +25°C, VI= 53V, IO= IOmax 1.48 1.5 1.52 V

setting and accuracy

Output adjust range IO= 0 to IOmax 1.2 1.66 V

VOOutput voltage IO= 0 to IOmax 1.43 1.58 V

tolerance band

Line regulation IO= IOmax 310 mV

Load regulation VI= 53V, IO= 0 to IOmax 310 mV

tr Load transient Load step = 0.25 x IOmax ±150 mVpeak

voltage deviation dI/dt = 1A/µs

ttr Load transient 100 µs

recovery time

tsStart-up time From VIconnection to VO= 0.9 x VOnom 25 40 ms

IOOutput current 0 20 A

POmax Max output power At VO= VOnom 30 W

IIim Current limit threshold VO= 0.96 VOnom @ TC<100°C 212426 A

ISC Short circuit current 24 28 A

VOac Output ripple and noise IO= IOmax f<20 MHz 70 150 mVp-p

SVR Supply voltage f<1kHz -53 dB

rejection (ac)

OVP Over voltage protection Vin = 50V 2.2 2.5 2.8 V

Output

Characteristics Conditions min typ max Unit

ηEfficiency TA= +25°C, VI= 53V, IO= IOmax 87 %

PdPower dissipation TA= +25°C, VI= 53V, IO= IOmax 4.5 W

fOSwitching frequency IO= 0...1.0 x IOmax 200 kHz

Miscellaneous

10 Data Sheet AE/LZT 108 4913 R2 © Ericsson Inc., Microelectronics, May 2001

PKM 4218 PIOA (22.5W)

TC= -40...+100°C, VI= 36...75V dc unless otherwise specified.

Characteristics Conditions Output

min typ max Unit

VOi Output voltage initial TC= +25°C, VI= 53V, IO= IOmax 1.48 1.5 1.52 V

setting and accuracy

Output adjust range IO= 0 to IOmax 1.2 1.66 V

VOOutput voltage IO= 0 to IOmax 1.43 1.58 V

tolerance band

Line regulation IO= IOmax 310 mV

Load regulation VI= 53V, IO= 0 to IOmax 310 mV

tr Load transient Load step = 0.25 x IOmax ±150 mVpeak

voltage deviation dI/dt = 1A/µs

ttr Load transient 100 µs

recovery time

tsStart-up time From VIconnection to VO= 0.9 x VOnom 25 40 ms

IOOutput current 0 15 A

POmax Max output power At VO= VOnom 22.5 W

IIim Current limit threshold VO= 0.96 VOnom @ TC<100°C 161821 A

ISC Short circuit current 20 23 A

VOac Output ripple and noise IO= IOmax f<20 MHz 70 150 mVp-p

SVR Supply voltage f<1kHz -53 dB

rejection (ac)

OVP Over voltage protection Vin = 50V 2.2 2.5 2.8 V

Output

Characteristics Conditions min typ max Unit

ηEfficiency TA= +25°C, VI= 53V, IO= IOmax 87 %

PdPower dissipation TA= +25°C, VI= 53V, IO= IOmax 3.4 W

fOSwitching frequency IO= 0...1.0 x IOmax 200 kHz

Miscellaneous

Data Sheet AE/LZT 108 4913 R2 © Ericsson Inc., Microelectronics, May 2001

PKM 4318 PI (36W)

TC= -40...+100°C, VI= 36...75V dc unless otherwise specified.

Characteristics Conditions Output

min typ max Unit

VOi Output voltage initial TC= +25°C, VI= 53V, IO= IOmax 1.77 1.8 1.83 V

setting and accuracy

Output adjust range IO= 0 to IOmax 1.44 2.0 V

VOOutput voltage IO= 0 to IOmax 1.71 1.89 V

tolerance band

Line regulation IO= IOmax 310 mV

Load regulation VI= 53V, IO= 0 to IOmax 310 mV

tr Load transient Load step = 0.25 x IOmax ±150 mVpeak

voltage deviation dI/dt = 1A/µs

ttr Load transient 100 µs

recovery time

tsStart-up time From VIconnection to VO= 0.9 x VOnom 25 40 ms

IOOutput current 0 20 A

POmax Max output power At VO= VOnom 36 W

IIim Current limit threshold VO= 0.96 VOnom @ TC<100°C212426A

ISC Short circuit current 24 28 A

VOac Output ripple and noise IO= IOmax f<20 MHz 70 150 mVp-p

SVR Supply voltage f<1kHz -53 dB

rejection (ac)

OVP Over voltage protection Vin = 50V 2.5 2.8 3.0 V

Output

Characteristics Conditions min typ max Unit

ηEfficiency TA= +25°C, VI= 53V, IO= IOmax 88 %

PdPower dissipation TA= +25°C, VI= 53V, IO= IOmax 4.9 W

fOSwitching frequency IO= 0...1.0 x IOmax 200 kHz

Miscellaneous

12 Data Sheet AE/LZT 108 4913 R2 © Ericsson Inc., Microelectronics, May 2001

PKM 4218 PI (27W)

TC= -40...+100°C, VI= 36...75V dc unless otherwise specified.

Characteristics Conditions Output

min typ max Unit

VOi Output voltage initial TC= +25°C, VI= 53V, IO= IOmax 1.77 1.8 1.83 V

setting and accuracy

Output adjust range IO= 0 to IOmax 1.44 2.0 V

VOOutput voltage IO= 0 to IOmax 1.71 1.89 V

tolerance band

Line regulation IO= IOmax 310 mV

Load regulation VI= 53V, IO= 0 to IOmax 310 mV

tr Load transient Load step = 0.25 x IOmax ±150 mVpeak

voltage deviation dI/dt = 1A/µs

ttr Load transient 100 µs

recovery time

tsStart-up time From VIconnection to VO= 0.9 x VOnom 25 40 ms

IOOutput current 0 15 A

POmax Max output power At VO= VOnom 27 W

IIim Current limit threshold VO= 0.96 VOnom @ TC<100°C161821A

ISC Short circuit current 24 28 A

VOac Output ripple and noise IO= IOmax f<20 MHz 70 150 mVp-p

SVR Supply voltage f<1kHz -53 dB

rejection (ac)

OVP Over voltage protection Vin = 50V 2.5 2.8 3.0 V

Output

Characteristics Conditions min typ max Unit

ηEfficiency TA= +25°C, VI= 53V, IO= IOmax 89 %

PdPower dissipation TA= +25°C, VI= 53V, IO= IOmax 3.3 W

fOSwitching frequency IO= 0...1.0 x IOmax 200 kHz

Miscellaneous

Data Sheet AE/LZT 108 4913 R2 © Ericsson Inc., Microelectronics, May 2001

PKM 4519 PI (50W)

TC= -40...+100°C, VI= 36...75V dc unless otherwise specified.

Characteristics Conditions Output

min typ max Unit

VOi Output voltage initial TC= +25°C, VI= 53V, IO= IOmax 2.45 2.5 2.55 V

setting and accuracy

Output adjust range IO= 0 to IOmax 2.0 2.75 V

VOOutput voltage IO= 0 to IOmax 2.4 2.6 V

tolerance band

Line regulation IO= IOmax 310 mV

Load regulation VI= 53V, IO= 0 to IOmax 310 mV

tr Load transient Load step = 0.25 x IOmax ±150 mVpeak

voltage deviation dI/dt = 1A/µs

ttr Load transient 100 µs

recovery time

tsStart-up time From VIconnection to VO= 0.9 x VOnom 25 40 ms

IOOutput current 020A

POmax Max output power At VO= VOnom 50 W

IIim Current limit threshold VO= 0.96 VOnom @ TC<100°C 212426 A

ISC Short circuit current 26 30 A

VOac Output ripple and noise IO= IOmax f<20 MHz 60 100 mVp-p

SVR Supply voltage f<1kHz -53 dB

rejection (ac)

OVP Over voltage protection Vin = 50V 3.2 3.7 4.2 V

Output

Characteristics Conditions min typ max Unit

ηEfficiency TA= +25°C, VI= 53V, IO= IOmax 89 %

PdPower dissipation TA= +25°C, VI= 53V, IO= IOmax 6.2 W

fOSwitching frequency IO= 0...1.0 x IOmax 200 kHz

Miscellaneous

14 Data Sheet AE/LZT 108 4913 R2 © Ericsson Inc., Microelectronics, May 2001

PKM 4319 PI (37.5W)

TC= -40...+100°C, VI= 36...75V dc unless otherwise specified.

Characteristics Conditions Output

min typ max Unit

VOi Output voltage initial TC= +25°C, VI= 53V, IO= IOmax 2.45 2.5 2.55 V

setting and accuracy

Output adjust range IO= 0 to IOmax 2.0 2.75 V

VOOutput voltage IO= 0 to IOmax 2.4 2.6 V

tolerance band

Line regulation IO= IOmax 310 mV

Load regulation VI= 53V, IO= 0 to IOmax 310 mV

tr Load transient Load step = 0.25 x IOmax ±150 mVpeak

voltage deviation dI/dt = 1A/µs

ttr Load transient 100 µs

recovery time

tsStart-up time From VIconnection to VO= 0.9 x VOnom 25 40 ms

IOOutput current 015A

POmax Max output power At VO= VOnom 37.5 W

IIim Current limit threshold VO= 0.96 VOnom @ TC<100°C 161821 A

ISC Short circuit current 26 30 A

VOac Output ripple and noise IO= IOmax f<20 MHz 60 100 mVp-p

SVR Supply voltage f<1kHz -53 dB

rejection (ac)

OVP Over voltage protection Vin = 50V 3.2 3.7 4.2 V

Output

Characteristics Conditions min typ max Unit

ηEfficiency TA= +25°C, VI= 53V, IO= IOmax 89 %

PdPower dissipation TA= +25°C, VI= 53V, IO= IOmax 4.6 W

fOSwitching frequency IO= 0...1.0 x IOmax 200 kHz

Miscellaneous

Data Sheet AE/LZT 108 4913 R2 © Ericsson Inc., Microelectronics, May 2001

Characteristics Conditions Output

min typ max Unit

VOi Output voltage initial TC= +25°C, VI= 53V, IO= IOmax 3.25 3.30 3.35 V

setting and accuracy

Output adjust range IO= 0 to IOmax 2.64 3.63 V

VOOutput voltage IO= 0 to IOmax 3.2 3.4 V

tolerance band

Line regulation IO= IOmax 310 mV

Load regulation VI= 53V, IO= 0 to IOmax 310 mV

Vtr Load transient Load step = 0.25 x IOmax ±150 mVpeak

voltage deviation dI/dt = 1A/µs

ttr Load transient 100 µs

recovery time

tsStart-up time From VIconnection to VO= 0.9 x VOnom 25 40 ms

IOOutput current 0 20 A

POmax Max output power At VO= VOnom 66 W

Ilim Current limit threshold VO= 0.90 x VOnom @ TC<100°C212426A

ISC Short circuit current 24 28 A

VOac Output ripple and noise IO= IOmax f < 20 MHz 60 100 mVp-p

SVR Supply voltage f<1 kHz -53 dB

rejection

OVP Overvoltage protection VI = 53V 3.9 4.4 5.0 V

Output

PKM 4610 PI (66W)

TC= -40...+100°C, VI= 36...75V dc unless otherwise specified.

Characteristics Conditions min typ max Unit

ηEfficiency TA= +25°C, VI= 53V, IO= IOmax 89 %

PdPower dissipation TA= +25°C, VI= 53V, IO= IOmax 8.2 W

fOSwitching frequency IO= 0...1.0 x IOmax 150 kHz

Miscellaneous

Characteristics Conditions Output

min typ max Unit

VOi Output voltage initial TC= +25°C, VI= 53V, IO= IOmax 3.25 3.30 3.35 V

setting and accuracy

Output adjust range IO= 0 to IOmax 2.64 3.63 V

VOOutput voltage IO= 0 to IOmax 3.2 3.4 V

tolerance band

Line regulation IO= IOmax 310 mV

Load regulation VI= 53V, IO= 0 to IOmax 310 mV

Vtr Load transient Load step = 0.25 x IOmax ±150 mVpeak

voltage deviation dI/dt = 1A/µs

ttr Load transient 100 µs

recovery time

tsStart-up time From VIconnection to VO= 0.9 x VOnom 25 40 ms

IOOutput current 0 15 A

POmax Max output power At VO= VOnom 50 W

Ilim Current limit threshold VO= 0.90 x VOnom @ TC<100°C161821A

ISC Short circuit current 20 23 A

VOac Output ripple and noise IO= IOmax f < 20 MHz 60 100 mVp-p

SVR Supply voltage f<1 kHz -53 dB

rejection

OVP Overvoltage protection VI = 53V 3.9 4.4 5.0 V

Output

PKM 4510 PI (50W)

TC= -40...+100°C, VI= 36...75V dc unless otherwise specified.

16 Data Sheet AE/LZT 108 4913 R2 © Ericsson Inc., Microelectronics, May 2001

Characteristics Conditions min typ max Unit

ηEfficiency TA= +25°C, VI= 53V, IO= IOmax 91 %

PdPower dissipation TA= +25°C, VI= 53V, IO= IOmax 4.9 W

fOSwitching frequency IO= 0...1.0 x IOmax 150 kHz

Miscellaneous

Data Sheet AE/LZT 108 4913 R2 © Ericsson Inc., Microelectronics, May 2001

Characteristics Conditions Output

min typ max Unit

VOi Output voltage initial TC= +25°C, VI= 53V, IO= IOmax 4.9 5.0 5.1 V

setting and accuracy

Output adjust range IO= 0 to IOmax, VI= 38...75V dc 4.0 5.5 V

VOOutput voltage IO= 0 to IOmax 4.85 5.15 V

tolerance band

Line regulation VI= 38...75V, IO= IOmax 310 mV

Load regulation VI= 53V, IO= 0 to IOmax 310 mV

tr Load transient Load step = 0.25 x IOmax ±150 mVpeak

voltage deviation dI/dt = 1A/µs

ttr Load transient 200 µs

recovery time

tsStart-up time From VIconnection to VO= 0.9 x VOnom 60 90 ms

IOOutput current 020A

POmax Max output power At VO= VOnom 100 W

IIim Current limit threshold VO= 0.96 VOnom @ TC<100°C 212426 A

ISC Short circuit current 24 28 A

VOac Output ripple and noise IO= IOmax f<20 MHz 85 150 mVp-p

SVR Supply voltage f<1kHz -53 dB

rejection (ac)

OVP Over voltage protection Vin = 50V 5.8 6.2 6.5 V

Output

Characteristics Conditions min typ max Unit

ηEfficiency TA= +25°C, VI= 53V, IO= IOmax 90 %

PdPower dissipation TA= +25°C, VI= 53V, IO= IOmax 11.1 W

fOSwitching frequency IO= 0...1.0 x IOmax 200 kHz

Miscellaneous

PKM 4111 PI (100W)

TC= -40...+100°C, VI= 36...75V dc unless otherwise specified.

18 Data Sheet AE/LZT 108 4913 R2 © Ericsson Inc., Microelectronics, May 2001

Characteristics Conditions Output

min typ max Unit

VOi Output voltage initial TC= +25°C, VI= 53V, IO= IOmax 4.9 5.0 5.1 V

setting and accuracy

Output adjust range IO= 0 to IOmax, VI= 38...75V dc 4.0 5.5 V

VOOutput voltage IO= 0 to IOmax 4.85 5.15 V

tolerance band

Line regulation VI= 38...75V, IO= IOmax 310 mV

Load regulation VI= 53V, IO= 0 to IOmax 310 mV

tr Load transient Load step = 0.25 x IOmax ±150 mVpeak

voltage deviation dI/dt = 1A/µs

ttr Load transient 200 µs

recovery time

tsStart-up time From VIconnection to VO= 0.9 x VOnom 60 90 ms

IOOutput current 015A

POmax Max output power At VO= VOnom 75 W

IIim Current limit threshold VO= 0.96 VOnom @ TC<100°C 161821 A

ISC Short circuit current 24 28 A

VOac Output ripple and noise IO= IOmax f<20 MHz 85 150 mVp-p

SVR Supply voltage f<1kHz -53 dB

rejection (ac)

OVP Over voltage protection Vin = 50V 5.8 6.2 6.5 V

Output

Characteristics Conditions min typ max Unit

ηEfficiency TA= +25°C, VI= 53V, IO= IOmax 92 %

PdPower dissipation TA= +25°C, VI= 53V, IO= IOmax 6.5 W

fOSwitching frequency IO= 0...1.0 x IOmax 200 kHz

Miscellaneous

PKM 4711 PI (75W)

TC= -40...+100°C, VI= 36...75V dc unless otherwise specified.

Data Sheet AE/LZT 108 4913 R2 © Ericsson Inc., Microelectronics, May 2001

PKM 4318 PIOA (30W)

PKM 4218 PIOA (22.5W)

5101520

36V

48V

60V

72V

Efficiency

Output Current (A)

Efficiency (%)

0 5 10 15 20 25 30

Output Characteristics

Output Current (A)

Output Voltage (V)

(48Vin)

51015

36V

48V

60V

72V

Efficiency

Output Current (A)

Efficiency (%)

0 5 10 15 20 25

Output Characteristics

Output Current (A)

Output Voltage (V)

(48Vin)

20 Data Sheet AE/LZT 108 4913 R2 © Ericsson Inc., Microelectronics, May 2001

PKM 4318 PI (36W)

PKM 4218 PI (27W)

5101520

36V

48V

60V

72V

Efficiency

Output Current (A)

Efficiency (%)

0 5 10 15 20 25 30

Output Characteristics

Output Current (A)

Output V oltage (V)

(48Vin)

51015

36V

48V

60V

72V

Efficiency

Output Current (A)

Efficiency (%)

0510152025

Output Characteristics

Output Current (A)

Output V oltage (V)

(48Vin)

Data Sheet AE/LZT 108 4913 R2 © Ericsson Inc., Microelectronics, May 2001

PKM 4519 (50W)

PKM 4319 PI (37.5W)

5101520

36V

48V

60V

72V

Efficiency

Output Current (A)

Efficiency (%)

0 5 10 15 20 25 30

Output Characteristics

Output Current (A)

Output Voltage (V)

(48Vin)

51015

36V

48V

60V

72V

Efficiency

Output Current (A)

Efficiency (%)

0 5 10 15 20 25

Output Characteristics

Output Current (A)

Output Voltage (V)

(48Vin)

PKM 4610 PI (66W)

PKM 4510 PI (50W)

5101520

36V

48V

60V

72V

Efficiency

Output Current (A)

Efficiency (%)

0 5 10 15 20 25

Output Characteristics

Output Current (A)

Output Voltage (V)

(48Vin)

51015

36V

48V

60V

72V

Efficiency

Output Current (A)

Efficiency (%)

0 5 10 15 20 25

Output Characteristics

Output Current (A)

Output Voltage (V)

(48Vin)

PKM 4111 PI (100W)

PKM 4711 PI (75W)

5101520

36V

48V

60V

72V

Efficiency

Output Current (A)

Efficiency (%)

0 5 10 15 20 25 30

Output Characteristics

Output Current (A)

Output Voltage (V)

(48Vin)

51015

36V

48V

60V

72V

Efficiency

Output Current (A)

Efficiency (%)

0 5 10 15 20 25

Output Characteristics

Output Current (A)

Output Voltage (V)

(48Vin)

EMC Specifications

The PKM power module is mounted on a double sided printed circuit board PCB with groundplane during EMC measurements.

The fundamental switching frequency is 150 kHz @ IO= IOmax.

Conducted EMI

Input terminal value with 100µF capacitor (typ) and additional PI filter.

0.68µF

47µF

10nF

4.7nF

3.3nF

47µF

10nF

External Filter (class B)

Required external input filter in order to meet class B in EN 55022, CISPR 22 and FCC part 15J.

L1: 450µH TDK TF1028S-451Y3R-01

L2 & L3: 22µH Coilcraft D05ø22P-23

*The baseplate is floated.

Class A

Class B

Remote Sense

All PKM 4000 series DC/DC power modules have remote sense

that can be used to compensate for moderate amounts of resistance

in the distribution system and allow for voltage regulation at the

load or other selected point. The remote sense lines will carry very

little current and do not need a large cross sectional area. However,

the sense lines on a PCB should be located close to a ground trace

or ground plane. In a discrete wiring situation, the usage of

twisted pair wires or other technique for reducing noise

susceptibility is recommended.

The power module will compensate for up to 0.5V voltage drop

between the sense voltage and the voltage at the power module

output pins. The output voltage and the remote sense voltage

offset must be less than the minimum overvoltage trip point.

Current Limiting

General Characteristics

All PKM 4000 series DC/DC power modules include current

limiting circuitry that makes them able to withstand continuous

overloads or short circuit conditions on the output. The output

voltage will decrease toward zero for heavy overloads.

The power module will resume normal operation after removal of

the overload. The load distribution system should be designed to

carry the maximum short circuit output current specified.

Operating Information

Input Voltage

The input voltage range 36...75V meets the requirements in the

European Telecom Standard ETS 300 132-2 for normal input

voltage range in -48V and -60V DC power systems, -40.5...-57.0V

and -50.0...-72.0V respectively. At input voltages exceeding 75V,

the power loss will be higher than at normal input voltage and TC

must be limited to absolute max +100º C. The absolute max

continuous input voltage is 80V DC.

Remote Control (RC)

The PKM 4000 series DC/DC power modules have two remote

on/off options available. Negative logic remote on/off is the standard

option orderable without a suffix added to the part number.

Negative logic remote on/off turns the module off during a logic

high voltage on the on/off pin, and on during a logic low state.

Positive logic remote on/off is orderable by adding the suffix “P” to

the end of the part number. Positive logic remote on/off turns the

module on during a logic high and off during a logic low state.

The RC pin can be wired directly to -In, to allow the module to

power up automatically without the need for control signals.

A mechanical switch or an open collector transistor or FET can be

used to drive the RC inputs. The device must be capable of

sinking up to 1mA at a low level voltage of 1.0V, maximum of

15V dc, for the primary RC.

RC (primary) Power module

Low ON

Open/High OFF

Over Voltage Protection (OVP)

All PKM 4000 DC/DC power modules have latching output

overvoltage protection. In the event of an overvoltage condition, the

power module will shut down. The power module can be restarted

by cycling the input voltage.

Turn-(on/off) Input Voltage (VIon/VIoff)

The power module monitors the input voltage and will turn on and

turn off at predetermined levels. See Input Table on page 2.

Output Voltage Adjust (Trim)

Voltage Trimming

All PKM 4000 series DC/DC power modules have an Output

Voltage Adjust pin. This pin can be used to adjust the output

voltage above or below VOi. When increasing the output voltage,

the voltage at the output pins (including any remote sensing offset)

must be kept below the overvoltage trip point. Also note that at

elevated output voltages the maximum power rating of the module

remains the same, and the output current capability will decrease

correspondingly. These modules trim exactly like the other major

competitors quarter-brick modules.

To decrease VOconnect Radj from - SEN to Trim

To increase VOconnect Radj from + SEN to Trim

Standard Remote Control

RC (primary) Power module

Low OFF

Open/High ON

Optional Remote Control (P)

Output Voltage Trim for 1.8V

Adjust resistor Value

(k Ohm)

Change in Output Voltage (∆%)

02 4 6 8 10 12 14 16 18 20

100

1000

10000

100000

Decrease

Increase

Output Voltage Trim for 2.5V

Adjust resistor Value

(k Ohm)

Change in Output Voltage (˘%)

02 4 6 8 10 12 14 16 18 20

100

1000

10000

100000

Decrease

Increase

Output Voltage Trim for 3.3V

Adjust resistor Value

(k Ohm)

Change in Output Voltage (˘%)

02 4 6 8 10 12 14 16 18 20

100

1000

10000

100000

Decrease

Increase

Output Voltage Trim for 5.0V

Adjust resistor Value

(k Ohm)

Change in Output Voltage (˘%)

02 4 6 8 10 12 14 16 18 20

100

1000

10000

1000000

100000

Decrease

Increase

Output Voltage Trim for 1.5V

Adjust resistor Value

(k Ohm)

Change in Output Voltage (∆%)

02 4 6 8 10 12 14 16 18 20

100

1000

10000

100000

Decrease

Increase

Decrease: Radj = 5.11(100 -2)kΩ

∆%

Increase: Radj = 5.11[Vo (100+∆%) - (100+2∆%) ]kΩ

1.225∆%∆%

Decrease: Radj = 5.11(100 -2)kΩ

∆%

Increase: Radj = 5.11[Vo (100+∆%) - (100+2∆%) ]kΩ

1.225∆%∆%

Decrease: Radj = 5.11(100 -2)kΩ

∆%

Increase: Radj = 5.11[Vo (100+∆%) - (100+2∆%) ]kΩ

1.225∆%∆%

Decrease: Radj = 5.11(100 -2)kΩ

∆%

Increase: Radj = 5.11[Vo (100+∆%) - (100+2∆%) ]kΩ

1.225∆%∆%

Decrease: Radj = 5.11(100 -2)kΩ

∆%

Increase: Radj = 5.11[Vo (100+∆%) - (100+2∆%) ]kΩ

1.225∆%∆%

Paralleling for Redundancy

The figure below shows how n + 1 redundancy can be achieved. The

diodes on the power module outputs allow a failed module to remove

itself from the shared group without pulling down the common output

bus. This configuration can be extended to additional numbers of

power modules and they can also be controlled individually or in

groups by means of signals to the primary RC inputs.

Output Ripple & Noise (VOac)

Output ripple is measured as the peak to peak voltage from 0 to

20MHz which includes the noise voltage and fundamental ripple.

Over Temperature Protection

The PKM 4000 DC/DC power modules are protected from thermal

overload by an internal over temperature shutdown circuit. When the

case temperature exceeds +110°C (+10, -5°C), the power module will

automatically shut down (latching). To restart the module the input

voltage must be cycled.

Input and Output Impedance

The impedance of both the power source and the load will interact

with the impedence of the DC/DC power module. It is most important

to have the ratio between L and C as low as possible, i.e. a low

characteristic impedance, both at the input and output, as the power

modules have a low energy storage capability. The PKM 4000 series of

DC/DC power modules has been designed to be completely stable

without the need for external capacitors on the input or output when

configured with low inductance input and output circuits. The

performance in some applications can be enhanced by the addition of

external capacitance as described below. If the distribution of the input

voltage source to the power module contains significant inductance,

the addition of a 220-470 µF capacitor across the input of the power

module will help insure stability. This capacitor is not required when

powering the module from a low impedance source with short, low

inductance, input power leads.

Output Capacitance

When powering loads with significant dynamic current requirements,

the voltage regulation at the load can be improved by the addition of

decoupling capacitance at the load. The most effective technique is to

locate low ESR ceramic capacitors as close to the load as possible, using

several capacitors to lower the effective ESR. These ceramic capacitors

will handle the short duration high frequency components of the

dynamic current requirement. In addition, higher values of electrolytic

capacitors should be used to handle the mid-frequency components. It

is equally important to use good design practices when configuring the

DC distribution system.

Low resistance and low inductance PCB (printed circuit board) layouts

and cabling should be used. Remember that when using remote

sensing, all the resistance, inductance and capacitance of the

distribution system is within the feedback loop of the power module.

This can have an effect on the modules compensation and the resulting

stability and dynamic response performance.

As a rule of thumb, 100 µF/A of output current can be used without

any additional analysis. For example, with a 20A (max PO100W)

power module, values of decoupling capacitance up to 2000 µF can be

used without regard to stability. With larger values of capacitance, the

load transient recovery time can exceed the specified value. As much of

the capacitance as possible should be outside of the remote sensing

loop and close to the load.The absolute maximum value of output

capacitance is 10,000 µF. For values larger than this contact your local

Ericsson representative.

Quality

Reliability

The calculated MTBF of the PKM 4000 module family is greater than

(>) 2.8 million hours using Bellcore TR-332 methodology. The

calculation is valid for a 90ºC baseplate temperature. Demonstrated

MTBF has been in the range of 3.0 to 3.2 million hours.

Quality Statement

The power modules are designed and manufactured in an industrial

environment where quality systems and methods like ISO 9000, 6σ,

and SPC, are intensively in use to boost the continuous improvements

strategy. Infant mortality or early failures in the products are screened

out and they are subjected to an ATE-based final test.

Conservative design rules, design reviews and product qualifications,

plus the high competence of an engaged work force, contribute to the

high quality of our products.

Warranty

Ericsson Inc., Microelectronics warrants to the original purchaser or

end user that the products conform to this Data Sheet and are free

from material and workmanship defects for a period of five (5) years

from the date of manufacture, if the product is used within specified

conditions and not opened.

In case the product is discontinued, claims will be accepted up to three

(3) years from the date of the discontinuation. For additional details on

this limited warranty we refer to Ericsson’s “General Terms and

Conditions of Sales,” EKA 950701, or individual contract documents.

Limitation of Liability

Ericsson Inc., Microelectronics does not make any other warranties,

expressed or implied including any warranty of merchantability or

fitness for a particular purpose (including, but not limited to use in

life support applications, where malfunctions of product can cause

injury to a person’s health or life).

PKM

PKM1 PKM2

The PKM DC/DC power module may be ordered with the different options

listed in the Product Options table.

Ericsson Inc.

Microelectronics

1700 International Pkwy., Suite 200

Richardson, Texas 75081

Phone: 877-ERICMIC

www.ericsson.com/microelectronics

For sales contacts, please refer to our website

or call: 877-374-2642 or fax: 972-583-8355

Product Program

VIVO/IOPOmax Ordering Number

48/60 V 1.5V/20A 30W PKM 4318 PIOA

48/60 V 1.5V/15A 22.5W PKM 4218 PIOA

48/60 V 1.8V/20A 36W PKM 4318 PI

48/60 V 1.8V/15A 27W PKM 4218 PI

48/60 V 2.5V/20A 50W PKM 4519 PI

48/60 V 2.5V/15A 37.5W PKM 4319 PI

48/60 V 3.3V/20A 66W PKM 4610 PI

48/60 V 3.3V/15A 50W PKM 4510 PI

48/60 V 5V/20A 100W PKM 4111 PI

48/60 V 5V/15A 75W PKM 4711 PI

Product Options

Option Suffix Example

Negative remote on/off logic –PKM 4610 PI

Positive remote on/off logic P PKM 4610 PIP

Lead length of 0.145" ± 0.010" LA PKM 4610 PILA

The latest and most complete

information can be found on our website!

Preliminary Data Sheet

AE/LZT 108 4913 R2

Information given in this data sheet is

believed to be accurate and reliable. No

responsibility is assumed for the consequences

of its use for any infringement of patents or

other rights of third parties that may result

from its use. No license is granted by

implication or otherwise under any patent or

patent rights of Ericsson Inc., Microelectronics.

These products are sold only according to

Ericsson Inc., Microelectronics’ general conditions

of sale, unless otherwise confirmed in writing.

Specifications subject to change without notice.