TSM115 查看數據表（PDF） - STMicroelectronics
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TSM115 Datasheet PDF : 17 Pages
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TSM115
Pin Description
1 Pin Description
Name
Fault
Gnd
PG
Tuv/Tpg
Rem
Trem/Tsur
Bsense
Vs5
Is5
Vs12a
Vs12b
Vs-12
Is12
Vs3.3
Is3.3
Rcrnt
Vcc
Pin #
1
2
4
5
6
7
9
10
11
12
13
14
15
16
17
19
20
Type
Open collector
Power supply
Open collector
Timing capacitor
Control Input pin
Timing capacitor
Control input pin
Analog input
Analog Input
Analog input
Analog input
Analog input
Analog Input
Analog input
Analog Input
Analog input
Power supply
Function
Fault output. Output of the over voltage and under voltage comparators.
Signal ground and silicon substrate
Output of the Tpg comparator. This pin goes low upon an under voltage
condition. Except for the delay set by the Tpg capacitor this pin always
reflects the actual state of the under voltage sensing comparators output.
A capacitor from this pin to Gnd provides a delay between outputs rail volt-
age within regulation and PG output going high. Capacitor discharges
whenever Bsense low or Rem high or UVP is detected.
This capacitor will also provide the under voltage blanking function when
the voltage at this pin is larger than the Vref voltage. The under voltage
function resume.
Pulling this pin high will send the Fault pin high latching off the power sup-
ply, reset the internal latch, discharge the start-up timing capacitors, Tuv
and Tpg capacitors, allowing normal start up of the system. Pulling this pin
low will send the Fault pin low, initiating a normal start up function.
A capacitor from this pin to Gnd will delay the Fault signal when the Rem
pin is used to shut down the power supply. The PG will signal a power fail-
ure warming immediately, but the Fault pin shut down of the power will be
delayed. This capacitor will also provide the overcurrent blanking function
(surge current).
Non inverting input to the Bsense voltage sensing comparator. Pulling this
pin lower than 2.5V will cause PG goes low and Tuv goes low.
Over voltage and under voltage detection for +5V rail
5V overcurrent control sense input.
Over voltage and under voltage detection for +12V rail
Over voltage and under voltage detection for +12V rail
Over voltage and under voltage detection for -12V rail.
12V overcurrent control sense input.
Over voltage and under voltage detection for 3.3V rail.
3.3V overcurrent control sense input.
A resistor from this pin to Gnd will provide the internal constant current.
Supply input voltage
ABSOLUTE MAXIMUM RATINGS
Symbol
DC Supply Voltage
Vcc
Vpmax
Vnmax
VDBTT
VTER
PT
Tstg
Tj
ESD
DC Supply Voltage 1
Terminal voltage Vs3.3, Is3.3, Vs12, Is12, Vs5, Is5
Terminal voltage Vs-12
VTpg/Tuv, VTrem/Tsur input voltage
Other terminals
Power dissipation
Storage temperature
Junction temperature
Electrostatic Discharge
1) All voltage values, except differential voltage are with respect to network ground terminal.
OPERATING CONDITIONS
Symbol
Vcc DC Supply Conditions
Toper Temperature range
Parameter
Value
Unit
-0.3 to 18
V
-0.3 to 18
V
-15 to 5
V
-0.3 to 3.3V
V
-0.3 to Vcc
V
1
W
-55 to 150
°C
150
°C
2
kV
Value
Unit
3 to 15
V
0 to 95
°C
2/17
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