TSM121 查看數據表（PDF） - STMicroelectronics
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TSM121 Datasheet PDF : 12 Pages
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Figure 2 : Internal Schematic
TSM121
12v
TO
5v
POWER
3.3v
SUPPLY
OUTPUT
FROM
MAIN
CONV.
12v
5v
3.3v
Vs5 Vs12
Vcc
VREF1
Vs12
Vs5
Vs33
EP
OVP
UVP
Is12
Is5
OCP
Is33
Vcc
TSM121
UV SURGE
BLANK BLANK
LOGIC
SECONDARY
HOUSEKEEPING
Tuv
Tsur
Trem
Tpg
PI
PG
REM
to MOTHERBOARD
VREF2
VREF2
IN+
IN- ERR AMP
FB
OSC OSCILLATOR
SS/DTC
C1
PWM
C2
GENERATOR
to PULSE TRANSF.
Gnd
7/12
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