Rev.03.08.07

bxb50s

2 of 4

Embedded Power for

Business-Critical Continuity

All specifications are typical at nominal input, full load at 25

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 and 15 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

24Vin nominal

18-36 Vdc

48Vin nominal

36-75 Vdc

Input current

No load

100 mA max.

Remote OFF

20 mA max.

Input current (max.)

48 V models

3.5 A max. @ Io max.

(See Note 4)

and Vin = 0 to 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

24 Vin: power up

17 V

24 Vin: power down

16 V

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

MIL-HDBK-217F

580,000 hours

@ 40 °C, 100% 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

5-500 Hz

2.4 G rms (approx.)