BXB75-48S12FHTJ - Emerson Network Power - Embedded Power

The BXB75 Series are high power density dc-dc converters

packaged in the industry standard footprint (2.40 x 2.28 x 0.50

inches) to give designers optimum choices when specifying for

both new and replacement designs. Suitable for a wide range of

applications in nearly any industry, the BXB75 was particularly

designed with communication and distributed power applications

in mind. Using Bellcore 332, the MTBF is greater than 1,400,000

hours. Aluminum baseplate technology with four threaded M3

inserts makes heatsink attachment and optimum thermal

management easy. The BXB75 series is approved to IEC950 by UL,

CSA and VDE.

Embedded Power for

Business-Critical Continuity

BXB75 Series

Single output

Special Features

• Industry standard footprint

MTBF >1.4 million hours

(Bellcore 332)

• Input voltage to ETS300-132-2

• Adjustable output voltage

• No minimum load required

• Separate case ground pin

• 2:1 input range for battery

powered applications

• Undervoltage lockout (UVLO)

• UL, VDE and CSA safety

approvals

• Available RoHS compliant

• 2 year warranty

Total Power: 50 - 75W

Input Voltage: 36 - 75VDC

# of Outputs: Single

Safety

VDE0805/EN60950/IEC950

File No. 10401-3336-0205

UL1950 File No. E136005

CSA C22.2 No. 950

File No. LR41062C

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Embedded Power for

Business-Critical Continuity

All specifications are typical at nominal input, full load at 25°C unless otherwise stated.

Specifications

OUTPUT SPECIFICATIONS

Voltage adjustability 60% to 110%

Set point accuracy ±1.0%

Line regulation Low line to high line ±0.05%

Load regulation Full load to min. load ±0.10%

Minimum load 0%

Overshoot At turn-on and turn-off None

Undershoot None

Ripple and noise 3.3 V and 5 V 75 mV pk-pk,

(5 Hz to 20 MHz) 20 mV rms

(See Note 1) 12 V 100 mV pk-pk,

30 mV rms

Temperature coefficient ±0.01%/°C

Transient response ±2.0% max. deviation

(See Note 2) 170 μs recovery

to within ±1.0%

Remote sense 0.5 Vdc transmission

line drop compensation

INPUT SPECIFICATIONS

Input voltage range 48 Vin nominal 36-75 Vdc

Input current No load 100 mA max.

Remote OFF 20 mA max.

Input current (max.) 3.5 A max. @ Io max.

(See Note 4) and Vin = 0-75 V

Input reflected ripple (See Note 6) 5 mA pk-pk

Active low remote ON/OFF (See Note 7)

Logic compatibility Open collector ref to -input

ON 1.2 Vdc max.

OFF Open circuit

INPUT SPECIFICATIONS (continued)

Undervoltage lockout 48 Vin: power up 34 V

48 Vin: power down 32.5 V

Start-up time Power up 20 ms

(See Note 8) Remote ON/OFF 20 ms

EMC CHARACTERISTICS

Conducted emissions Bellcore 1089 Level A

(See Note 3) FCC part 15 Level A

EN55022, CISPR22 Level A

GENERAL SPECIFICATIONS

Efficiency See table

Isolation voltage Input/case 1500 Vdc

Input/output 1500 Vdc

Output/case 1500 Vdc

Switching frequency Fixed 500 kHz typ.

Approvals and VDE0805, EN60950, IEC950

standards (See Note 5) UL1950, CSA C22.2 No. 950

Case material Aluminum baseplate

with plastic case

Material flammability UL94V-0

Weight 110 g (3.88 oz)

MTBF Bellcore 332 1,400,000 hours min.

MIL-HDBK-217F 580,000 hours min.

@ 40 °C, 100% full load

ENVIRONMENTAL SPECIFICATIONS

Thermal performance Operating case temp. -40 °C to +100 °C

Non-operating -55 °C to +125 °C

Altitude Operating 10,000 feet max.

Non-operating 40,000 feet max.

Vibration 5-500 Hz 2.4 G rms (approx.)

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Embedded Power for

Business-Critical Continuity

Specifications Contd.

Notes

1Measured with 10 μF tantalum capacitor and 1 μF ceramic capacitor across

output.

2di/dt = 0.1 A/1 μs, Vin = 48 Vdc, Tc = 25 °C, load change = 0.5 lo max. to 0.75 lo

max. and 0.75 lo max. to 0.5 lo max.

3Units should be characterised within systems. External components required.

4Input fusing is recommended based on surge current and maximum input

current.

5This product is only for inclusion by professional installers within other

equipment and must not be operated as a stand alone product.

6Simulated source impedance of 12 μH. 12 μH inductor in series with +Vin.

7Active high remote on/off option is available (standard product is active low),

designate with the suffix ‘FHT’ e.g. BXB75-48S05FHTJ. Consult factory for

further details and options.

8Start-up into resistive load.

9The ‘J’ suffix indicates that these parts are Pb-free (RoHS 6/6) compliant.

TSE RoHS 5/6 (non Pb-free) compliant versions may be available on special

request, please contact your local sales representative for details.

10 NOTICE: Some models do not support all options. Please contact your local

Artesyn representative or use the on-line model number search tool at

http://www.artesyn.com/powergroup/products.htm to find a suitable

alternative.

PROTECTION

Short circuit Continuous, automatic recovery

Overvoltage Non-latching

Undervoltage Non-latching

Thermal 110 °C baseplate,

automatic recovery

TELECOM SPECIFICATION

Central office interface A ETS300-132-2

OUTPUT INPUT OVP OUTPUT OUTPUT OUTPUT EFFICIENCY REGULATION MODEL

POWER VOLTAGE VOLTAGE CURRENT CURRENT (TYP.) LINE LOAD NUMBER (7, 9,10)

(MAX.) (MIN.) (MAX.)

50 W 36-75 Vdc 4.3 Vdc 3.3 V 0 A 15 A 79% ±0.05% ±0.1% BXB75-48S3V3FLTJ

75 W 36-75 Vdc 6.5 Vdc 5 V 0 A 15 A 83% ±0.05% ±0.1% BXB75-48S05FLTJ

75 W 36-75 Vdc 14.5 Vdc 12 V 0 A 6.25 A 84% ±0.05% ±0.1% BXB75-48S12FLTJ

EXTERNAL OUTPUT TRIMMING

Output can be externally

trimmed by using the

method shown.

TRIM

DOWN

RT1

RT2

PIN CONNECTIONS

NUMBER FUNCTION

1+ Vin

2 Remote ON/OFF

3Case

4- Vin

5 - Vout

6 - Sense

7Trim

8 + Sense

9 + Vout

Embedded Power for

Business-Critical Continuity

Rev.03.08.07

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Emerson Network Power and the Emerson

Network Power logo are trademarks and

service marks of Emerson Electric Co.

Emerson Network Power.

The global leader in enabling

business-critical continuity.

EmersonNetworkPower. com

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Americas

5810 Van Allen Way

Carlsbad, CA 92008

USA

Telephone: +1 760 930 4600

Facsimile: +1 760 930 0698

Europe (UK)

Waterfront Business Park

Merry Hill, Dudley

West Midlands, DY5 1LX

United Kingdom

Telephone: +44 (0) 1384 842 211

Facsimile: +44 (0) 1384 843 355

Asia (HK)

16th - 17th Floors, Lu Plaza

2 Wing Yip Street, Kwun Tong

Kowloon, Hong Kong

Telephone: +852 2176 3333

Facsimile: +852 2176 3888

For global contact, visit:

www.powerconversion.com

technicalsupport@powerconversion.com

While every precaution has been taken to ensure

accuracy and completeness in this literature, Emerson

Network Power assumes no responsibility, and disclaims

all liability for damages resulting from use of this

information or for any errors or omissions.

ALL DIMENSIONS IN INCHES (mm)

Tolerance : x.xx ±0.02in. (0.51mm)

x.xxx ±0.010in. (0.254mm)

VIEW SHOWN

PIN SIDE UP

1.90

(48.26) 0.190 (4.83) ± 0.010 (0.25)

2 x Ø.080 (2.03) ± 0.002 (0.05)

4 x M3 x 0.5 Through

7 x Ø.040 (1.02) ±0.002 (0.05)

2.28 (57.91) Max.

0.700 (17.77)

1.000 (25.40)

1.400 (35.56)

2.000 (50.80)

0.190 (4.83) ±0.010 (0.25)

0.400 (10.16)

0.500 (12.69) ± 0.010 (0.25)

0.400 (10.16)

1.000 (25.40)

1.400 (35.56)

Vo(+) +SEN TRIM -SEN Vo (-)

VI(+) ON/OFF CASE VI (-)

0.200 (5.08) Min.

Length for all Input

and Output Pins

0.500 (12.70)

2.40 (60.96)

Max.