STR-S6513

OFF-LINE

SWITCHING REGULATOR

115 Northeast Cutoff, Box 15036

Worcester, Massachusetts 01615-0036 (508) 853-5000

™

FUNCTIONAL BLOCK DIAGRAM

ALLOWABLE PACKAGE POWER DISSIPATION

MAXIMUM SAFE OPERATING AREA

60

40

20

20

60

100

3.2 W

140

LIMITED BY FRAME

TEMP. = +125

°C MAX.

RECOMMENDED MAX.

FRAME TEMP. = +100

°C

FREE AIR

54 W

0

TEMPERATURE in

°C

MOUNTING SURFACE

TEMPERATURE

Dwg. GK-003-2

LIMITED

BY rDS(on)

100

10

1.0

0.1

DRAIN-TO-SOURCE VOLTAGE in VOLTS

Dwg. GK-004-3

0.3

3.0

30

3.0

10

30

100

300

NO HEAT SINK

NATURAL COOLING

T

= +25

°C

A

t

= 10

ms

SINGLE

PULSE

w

t

= 1

ms

SINGLE

PULSE

w

t

= 0.1

ms

SINGLE

PULSE

w

INFINITE

HEAT

SINK

Rtoff

OSC.

TSD

OVER-VOLT.

PROTECT

COMMON

3

R

SQ

V

IN

FDBK

OVER-CURRENT

PROTECTION

SOURCE

DRAIN

Rton

REF.

FAULT

LATCH

5

1

2

4

6

Dwg. FK-002-3

TRIGGER

0.01

µF

FAULT-LATCH

TRIGGER

& SOFT

START

7

0.75 V

+

UVLO

1000 pF

NO CONNECTION

8

9

Copyright © 1994 Allegro MicroSystems, Inc.