TSM111 Datasheet, PDF (1/18 Pages) STMicroelectronics – TRIPLE VOLTAGE AND CURRENT SUPERVISOR

®
TSM111
TRIPLE VOLTAGE AND CURRENT SUPERVISOR
. OVERVOLTAGE PROTECTION FOR 3.3V, 5V
. ^{AND 12V WITHOUT EXTERNAL}
COMPONENTS
OVERCURRENT PROTECTION FOR 3.3V, 5V
AND 12V WITH INTERNAL THRESHOLD
VOLTAGE
. POWER GOOD CIRCUITRY
. GENERATES POWER GOOD SIGNAL
. REMOTE ON/OFF FUNCTION
. PROGRAMMABLE TIMING FOR POWER
GOOD SIGNAL
. 14.5V TO 36V SUPPLY VOLTAGE RANGE
. TWO 1.6% VOLTAGE REFERENCES FOR
MAIN AND AUXILIARY CONVERTER
REGULATION LOOPS
N
DIP20
(Plastic Package)
D
SO20
(Plastic Micropackage)
DE SC RI P TI O N
The TSM111 integrated circuit incorporates all
sensing circuit to control a triple output power sup-
ply. It includes voltage references , comparatorsand
matched resistors bridge for overcurrent and over-
voltage detection without the need of any external
components.Timing generatorwith externalcapaci-
tors, control turn On and Off delays. It provides an
integrated and cost effective solution for simultane-
ous multiple voltage control.
AP PL I CATI O NS
This circuit is designedto be used in SMPS forDesk-
top PC, to supervise currents and voltages of all out-
puts 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.
May 1999
ORDER CODES
Part
Number
Temperature
Range
TSM111C
0, +70^oC
Example : TSM111CD
Package
N
D
•
•
PIN CONNECTIONS (top view)
Vs33 1
Vs5 2
Vs12 3
ADJ 4
Vcc 5
P WM 6
REM 7
Tre m 8
PG 9
Tpor 10
20 _Is33
19 _Is5
18 _Is12
17 _{Ts ur}
16 _GND
15 _FbMAIN
14 _VrefMAIN
13 VrefAUX
12 FbAUX
11 UV
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