TSM1121 Datasheet, PDF (1/11 Pages) STMicroelectronics – 3.3V 5V 12V HOUSEKEEPING IC

TSM1121
3.3V 5V 12V HOUSEKEEPING IC
s Over voltage protection for 3.3V 5V and
12V without external components
s Under voltage protection for 3.3V 5V and
12V without external components
s Over voltage protection for -12V or -5V with
external components
s Externally adjustable under voltage
blanking during power up
s Power good input/output
s Externally adjustable pg delay
s Fault output
s Remote output
s Externally adjustable remote delay
s Precision voltage reference
s 2kV ESD protection
DESCRIPTION
The TSM1121 integrated circuit incorporates all
sensing circuitry to regulate and protect from over
voltage and under voltage a multiple output power
supply (3.3V, 5V and 12V).
TSM1121 incorporates all the necessary functions
for Housekeeping features which allow safe
operation in all conditions, and very high system
integration.
TSM1121 integrates a precise voltage reference.
APPLICATION
s PC SMPS triple power line housekeeping ic
(3.3V 5V 12V)
ORDER CODE
Part
Number
Temperatur ^Package
e Range _{N D}
Marking
TSM1121CN
TSM1121CD
0 to 85°C
0 to 85°C
•
TSM1121C
•
M1121
Note: N = Dual in Line Package (DIP)
D = Small Outline Package (SO) - also available in Tape &
Reel (DT)
N
DIP14
(Plastic Package)
D
SO14
(Plastic Micropackage)
PIN CONNECTIONS (top view)
VS33 1
VS5 2
VS12 3
EP 4
PI 5
TUV 6
GND 7
14 VCC
13 FAULT
12 PG
11 TPG
10 TREM
9 REM
8 VREF
May 2003
Revision A
1/11