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TSM111_03

Description
TRIPLE VOLTAGE AND CURRENT SUPERVISOR
File Size503KB,17 Pages
ManufacturerSTMicroelectronics
Websitehttp://www.st.com/
Download Datasheet Compare View All

TSM111_03 Overview

TRIPLE VOLTAGE AND CURRENT SUPERVISOR

TSM111
TRIPLE VOLTAGE AND CURRENT SUPERVISOR
s
OVERVOLTAGE PROTECTION FOR 3.3V, 5V
AND 12V WITHOUT EXTERNAL COMPO-
NENTS
s
OVERCURRENT PROTECTION FOR 3.3V,
5V AND 12V WITH INTERNAL THRESHOLD
VOLTAGE
N
DIP20
(Plastic Package)
s
POWER GOOD CIRCUITRY
s
GENERATES POWER GOOD SIGNAL
s
REMOTE ON/OFF FUNCTION
s
PROGRAMMABLE TIMING FOR POWER
GOOD SIGNAL
s
14.5V TO 36V SUPPLY VOLTAGE RANGE
s
TWO 1.6% VOLTAGE REFERENCES FOR
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.
D
SO20
(Plastic Micropackage)
ORDER CODE
Package
Part Number
Temperature Range
N
TSM111C
Example :
TSM111CD
0, +70°C
D
N =
Dual in Line Package (DIP)
D =
Small Outline Package (SO) - also available in Tape & Reel (DT)
PIN CONNECTIONS
(top view)
Vs33
Vs5
Vs12
ADJ
Vcc
PWM
REM
Trem
PG
Tpor
1
2
3
4
5
6
7
8
9
10
20
19
18
17
16
15
14
13
12
11
Is33
Is5
Is12
Tsur
GND
FbMAIN
VrefMAIN
VrefAUX
FbAUX
UV
January 2003
1/17

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