TSM1121 查看數據表（PDF） - STMicroelectronics
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TSM1121 Datasheet PDF : 11 Pages
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TSM1121
Pin Description
1 PIN DESCRIPTION
Name Pin #
Type
Function
Vcc
Gnd
Vs12
Vs5
Vs33
Tuv
Fault
PI
PG
Tpg
REM
Trem
Vref
EP
14 Power Supply
Positive Power Supply Line
7 Power Supply
Ground Line. 0V Reference For All Voltages
3 Analog Input
Over and Under voltage Sense Input Dedicated to the 12V Line1
2 Analog Input
Over and Under voltage Sense Input Dedicated to the 5V Line1)
1 Analog Input
Over and Under voltage Sense Input Dedicated to the 3.3V Line1)
6 Timing Capacitor Adjustable Under voltage Blanking Delay at Power Up (Setting Capacitor)
13 Open Collector
Fault Output. Fault is high when Over or Under Voltage has been Detected
5 Analog Input
Power Good Input. Detection of the Power Conditions
12 Open Collector
Power Good Output. PG output is High when the Power Conditions are
OK
11 Timing Capacitor Adjustable Power Good Delay (Setting Capacitor)
Logic Input
9
Input Remote Control of the Complete System by the Motherboard (µCon-
troller). Remote is active high. Switch OFF/ON of the Power Supply. Reset
of the Complete System after a FAULT Activation.
10 Timing Capacitor Adjustable Remote Delay (Setting Capacitor).
8 Voltage Reference 2.5V Reference for all Voltages
4 Analog Input
Extra Protection Circuit. Can be used for -12V or -5V Over Voltage Protec-
tion.
1) Over and Under Voltage Inputs can go higher than Vcc within the allowed Max Rating range
ABSOLUTE MAXIMUM RATINGS
Symbol
DC Supply Voltage
Vcc
Iout
Io
VFault
Pd
Tstg
ESD
Tuv
EP
PI
PG
Tpg
REM
Trem
DC Supply Voltage 1
Output Current Power Good
Output current for the Voltage reference
Fault Ouput
Power Dissipation
Storage Temperature
Electrostatic Discharge
Adjustable Under voltage Blanking At Power UP
Extra Protection
Power Good Input
Power Good Output
Adjustable Power Good Delay
Remote Control
Adjustable Remote Delay
1) All voltage values, except differential voltage are with respect to network ground terminal.
Value
25
30
20
5
0.7
-55 to 150
2
5
5
5
5
5
5
5
Unit
V
mA
mA
V
W
°C
kV
V
V
V
V
V
V
V
OPERATING CONDITIONS
Symbol
Parameter
Vcc DC Supply Conditions
Toper Operating Free Air Temperature Range
Value
4.5 to 24
0 to 85
Unit
V
°C
2/11
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