TSM114 데이터 시트보기 (PDF) - STMicroelectronics
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TSM114 Datasheet PDF : 14 Pages
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TSM114
Pin Descriptions
1 Pin Descriptions
Table 1: This table gives the pin description for DIP14 package
Name
Fault
Gnd
PG
Tpg
Rem
Trem
Tuv
Bsense
Vs5
Vs12
Vs-12
Vs3.3
Rcrnt
Vcc
Pin #
Type
1 Open collector
2 Power supply
Open collector
3
Timing capacitor
4
Control Input pin
5
Timing capacitor
6
Timing capacitor
7
8 Control input pin
9 Analog input
10 Analog input
11 Analog input
12 Analog input
13 Analog input
14 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
voltage within regulation and PG output going high. Capacitor discharges
whenever Bsense low or Rem high or UVP is detected.
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.
A capacitor from this pin to Gnd will provide the under voltage blanking
function. This capacitor is charging when the Bsense and Rem signal is in
the right state. As the voltage at this pin is larger than the Vref voltage.
The under voltage function resume.
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
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 3.3V rail. This function is dis-
abled by connecting to Vcc
A resister from this pin to Gnd will provide the internal constant current.
Supply input voltage
2 Absolute Maximum Ratings
Table 2: Key parameters and their absolute maximum ratings
Symbol
DC Supply Voltage
Vcc
Vpmax
Vnmax
VDBTT
VTER
PT
Toper
Tstg
Tj
ESD
DC Supply Voltage 1
Terminal voltage V12, V5, V3.3
Terminal voltage V-12
VTuv, VTpg, VTrem input voltage
Other terminals
Power dissipation
Operational temperature
Storage temperature
Junction temperature
Electrostatic Discharge
1) All voltage values, except differential voltage are with respect to network ground terminal.
Table 3: Operating Conditions
Symbol
Vcc DC Supply Conditions
Parameter
Value
Unit
-0.3 to 25
V
-0.3 to 25
V
-16 to Vref
V
-0.3 to 3.3V
V
-0.3 to Vcc
V
1
W
0 to 95
°C
-55 to 150
°C
150
°C
2K
V
Value
Unit
4.2 to 24
V
2/14
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