BXB75-48D05-3V3FH - ARTESYN TECHNOLOGIES

BXB75 SERIES

Single output

[ 2 YEAR WARRANTY ]

• 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

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.

SPECIFICATION

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

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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 tur n-off None

Undershoot None

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

(5Hz to 20MHz) 20mV rms

(See Note 1) 12V and 15V 100mV pk-pk,

30mV rms

Temperature coefficient ±0.01%/°C

Transient response ±2.0% max. deviation

(See Note 2) 170µs recovery

to within ±1.0%

Remote sense 0.5VDC transmission

line drop compensation

INPUT SPECIFICATIONS

Input voltage range 24Vin nominal 18 to 36VDC

48Vin nominal 36 to 75VDC

Input current No load 100mA max.

Remote OFF 20mA max.

Input current (max.) 48V models 3.5A max. @ Io max.

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

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

Active low remote ON/OFF (See Note 7)

Logic compatibility Open collector ref to -input

ON 1.2VDC max.

OFF Open circuit

INPUT SPECIFICATIONS CONTINUED

Undervoltage lockout 24Vin: power up 17V

24Vin: power down 16V

48Vin: power up 34V

48Vin: power down 32.5V

Start-up time Power up 20ms

(See Note 8) Remote ON/OFF 20ms

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 1500VDC

Input/output 1500VDC

Output/case 1500VDC

Switching frequency Fixed 500kHz 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 110g (3.88oz)

MTBF Bellcore 332 1,400,000 hours

MIL-HDBK-217F 580,000 hours

@ 40°C, 100% full load min.

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 5Hz to 500Hz 2.4G rms (approx.)

Notes

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

output.

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

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

3 Units should be characterised within systems. External components

required.

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

current.

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

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

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

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

low), designate with the suffix ‘FHT’ e.g. BXB75-48S05FHT. Consult

factory for further details and options.

8 Start-up into resistive load.

International Safety Standard Approvals

VDE0805/EN60950/IEC950 File No. 10401-3336-1095

UL1950 File No. E136005

CSA C22.2 No. 950 File No. LR41062C

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.

TRIM

DOWN

RT1

RT2

PROTECTION

Short circuit protection Continuous, automatic recovery

Overvoltage protection Non-latching

Undervoltage protection Non-latching

Thermal protection 110°C baseplate,

automatic recovery

50 to 75 Watt

Wide input DC/DC converters

DC/DC CONVERTERS |

50-75W DC/DC

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TELECOM SPECIFICATIONS

Central office interface A ETS300-132-2

PIN CONNECTIONS

NUMBER FUNCTION

1+ Vin

2 Remote ON/OFF

3 Case

4- Vin

5 - Vout

6 - Sense

7 Trim

8 + Sense

9 + Vout

OUTPUT INPUT OVP OUTPUT OUTPUT OUTPUT EFFICIENCY REGULATION MODEL

POWER VOLTAGE VOLTAGE CURRENT CURRENT (TYP.) LINE LOAD NUMBER (7)

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

50W 18-36VDC 4.3VDC 3.3V 0A 15A 78% ±0.05% ±0.1% BXB75-24S3V3FLT

75W 18-36VDC 6.5VDC 5V 0A 15A 82% ±0.05% ±0.1% BXB75-24S05FLT

75W 18-36VDC 14.5VDC 12V 0A 6.25A 83% ±0.05% ±0.1% BXB75-24S12FLT

75W 18-36VDC 17.5VDC 15V 0A 5.0A 84% ±0.05% ±0.1% BXB75-24S15FLT

50W 36-75VDC 4.3VDC 3.3V 0A 15A 79% ±0.05% ±0.1% BXB75-48S3V3FLT

75W 36-75VDC 6.5VDC 5V 0A 15A 83% ±0.05% ±0.1% BXB75-48S05FLT

75W 36-75VDC 14.5VDC 12V 0A 6.25A 84% ±0.05% ±0.1% BXB75-48S12FLT

75W 36-75VDC 17.5VDC 15V 0A 5.0A 85% ±0.05% ±0.1% BXB75-48S15FLT

2000

The information and specifications contained in this data sheet are believed to be correct at time of publication. However, Artesyn Technologies accepts no responsibility for consequences arising

from printing errors or inaccuracies. Specifications are subject to change without notice. No rights under any patent accompany the sale of any such product(s) or information contained herein.

Please consult our website for the following items: ✔ Application Note ✔ Simscope™

EXTERNAL OUTPUT TRIMMING

Output can be externally trimmed

by using the method shown below.

DS_BXB75S_20000101.PDF