1/17

AND 12V WITHOUT EXTERNAL COMPO-

NENTS

5V AND 12V WITH INTERNAL THRESHOLD

VOLTAGE

GOOD SIGNAL

MAIN AND AUXILIARY CONVERTER REG-

ULATION LOOPS

DESCRIPTION

The TSM111 integrated circuit incorporates all

sensing circuit to control a triple output power sup-

ply. It includes voltage references , comparators

and matched resistors bridge for overcurrent and

overvoltage detection without the need of any ex-

ternal components. Timing generator with external

capacitors, control turn On and Off delays. It pro-

vides an integrated and cost effective solution for

simultaneous multiple voltage control.

APPLICATION

This circuit is designed to be used in SMPS for

Desktop PC, to supervise currents and voltages of

all outputs and generate power good information

to the system while managing all timing during

transitory operation.

The IC also manages the standby mode of SMPS

while the PC is in sleep mode.

ORDER CODE

N = Dual in Line Package (DIP)

D = Small Outline Package (SO) - also available in Tape & Reel (DT)

PIN CONNECTIONS (top view)

Part Number

Temperature Range

Package

ND

TSM111C

0, +70°C

••

Example : TSM111CD

N

DIP20

(Plastic Package)

D

SO20

(Plastic Micropackage)

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

Vs33

Vs5

Vs12

ADJ

Vcc

PWM

REM

Trem

PG

Tpor

Is33

Is5

Is12

Tsur

GND

FbMAIN

VrefMAIN

VrefAUX

FbAUX

UV

TSM111

TRIPLE VOLTAGE AND CURRENT SUPERVISOR

January 2003