1

40

45

50

55

60

65

70

75

80

85

90

10

20

30

40

50

60

70

80

90

100

LOAD %

EFF.

BWD4812

EFF.

BWD4808

40

45

50

55

60

65

70

75

80

85

10

20

30

40

50

60

70

80

90

100

LOAD %

EFF.

BWD2415

EFF.

BWD2412

TECHNICAL SPECIFICATIONS

General

DESCRIPTION

FEATURES

BWD SERIES - DUAL OUTPUT, 2.5 WATT

No Load Input Power

0.7 W

Switching Frequency

200 kHz

Isolation

Input - Output

500 VDC

Input - Case

500 VDC

Output - Case

500 VDC

Isolation Resistance - Input to Output

Isolation Capacitance - Input to Output

80 pF

Case Temperature

Standard Operating Range

-25 to +85°C

Storage Range

-40 to +125°C

Humidity Max., Non-Condensing

95%

Vibration, 3 Axes, 5 Min Each

5 g, 10 - 55 Hz

Safety

UL, CUL, TUV

Weight (Approx.)

0.7 oz

• Industry Standard Dip

Package

• Industry Standard Pinout

• 85°C Case Operation

• Wide Range Input

• Input Pi Filter

• 500V Isolation

• Short Circuit Protection

BWD dual output DC/DC converters offer excellent

regulation and isolation in an industry standard DIP

package. With several input voltage ranges, the BWD

is perfect for industrial, telecom, and networking

applications. The BWD features short circuit

protection, low profile, and 500 VDC isolation. Please

see the BWS series for single output applications.

Input

Voltage Range

5 VDC Nominal

4.5 - 9 VDC

12 VDC Nominal

9 - 18 VDC

24 VDC Nominal

19 - 36 VDC

48 VDC Nominal

36 - 72 VDC

Reflected Ripple

20% I

Reverse Input Current

100% I

Output

Setpoint Accuracy

±1%

Line Regulation V

±1.5% V

out

Load Regulation I

±2.5% V

out

Minimum Output Current

10 % l

Dynamic Regulation, 1/4 to Full Load Step

25% I

out

Pk Deviation

4% V

out

Settling Time

500

µs

Temperature Coefficient

0.02%/°C

Ripple and Noise, 20 MHz BW

150 mV

Continuous Auto-restart

Current Limit

180%

1

Continuous short circuit protection is provided. Long-term continuous operation in

this mode is not recommended. Converter will auto-restart once fault has been

removed

Specifications typically at 25°C, normal line, and full load, unless otherwise

stated.

Soldering Conditions: I/O pins, 260°C, ten seconds; fully compatible with

commercial wave-soldering equipment.

Safety: Agency approvals may vary from model to model. Please consult factory

for specific model information.

Efficiency vs. Load (24V Input)

Efficiency vs. Load (48V Input)

Notes