20381 BARENTS SEA CIRCLE, LAKE FOREST, CA 92630

Specifications subject to change without notice.

1

b3af 2/98

TPC RESETING DC/DC

CONVERTERS FOR

NETWORKING

M

P

Premier

Magnetics Inc.

"INNOVATORS IN MAGNETICS TECHNOLOGY"

Pins 2 & 23 are

Optional & May Be

Ommitted

1.280

(32.51)

MAX

.420

(10.67)

MAX

.800

(20.32)

MAX

.150

(3.81)

TYP

.600

(15.24)

1.100

(27.94)

.020

(0.51)

.100

(2.54)

TYP

PACKAGE

SCHEMATIC

PHYSICAL DIMENSIONS .... DIMENSIONS IN mm

(inches)

FEATURES

!

1.8 & 2.25 Watts

"

Caspacitor Input Filter

#

TPC Self Reseting Short Circuit Protection

$

24-Pin DIL Package

GENERAL SPECIFICATIONS

%

Efficiency (unregulated) ............... 75% min.

%

Switching Frequency .................. 40KHz min.

%

Isolation Voltage .................... 500Vdc min.

%

INPUT SPECIFICATIONS

%

Voltage ......................................... 5 or 12.0Vdc

%

Voltage Range .......................................... ±5%

%

Input Filter ........................................ Capacitor

OUTPUT SPECIFICATIONS

%

Voltage ................................................... 9.0Vdc

%

Voltage Accuracy ...................................... ±5%

%

Short Circuit Protection ........... TPC RESETING

%

Ripple & Noise 20MHz BW ........... 100mV p-p

%

Load Regulation .................................. ±10.0%

P

M

B3AFXX09XX

YYWW

B3AF050920

5

9

200

YES

100

575

B3AF120925

12

9

250

YES

40

250

PART

NUMBER

INPUT

VOLTAGE

(Vdc)

OUTPUT

VOLTAGE

(Vdc)

OUTPUT

CURRENT

(mA max.)

TPC

FUSED

INPUT

INPUT CURRENT (mA typ.)

NO LOAD

FULL LOAD

10

11

12

12

+Vin

15

14

13

23

24

+Vin

-Vout +Vout

+Vout

-Vin

-Vin

TPC RESETTING

DC to DC CONVERTER

NC

NC

-Vout