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TSM121 数据表(PDF) 8 Page - STMicroelectronics

部件名 TSM121
功能描述  SINGLE CHIP PWM & HOUSEKEEPING IC FOR HALF BRIDGE SMPS
PDF  12 Pages
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制造商  STMICROELECTRONICS [STMicroelectronics]
网页  http://www.st.com
标志 STMICROELECTRONICS - STMicroelectronics

TSM121 数据表(HTML) 8 Page - STMicroelectronics

Back Button TSM121 Datasheet HTML 4Page - STMicroelectronics TSM121 Datasheet HTML 5Page - STMicroelectronics TSM121 Datasheet HTML 6Page - STMicroelectronics TSM121 Datasheet HTML 7Page - STMicroelectronics TSM121 Datasheet HTML 8Page - STMicroelectronics TSM121 Datasheet HTML 9Page - STMicroelectronics TSM121 Datasheet HTML 10Page - STMicroelectronics TSM121 Datasheet HTML 11Page - STMicroelectronics TSM121 Datasheet HTML 12Page - STMicroelectronics  
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TSM121
8/12
Figure 3 : Detailed Internal Schematic
Vref1
OVP
OCP
Vcs12
1.25V
OVP
Vov12
IS12
VS12
IS5
VS5
IS33
VS33
Tsur
0.8V
FAULT
REM
PG
5V
S
R
Q
VCC
1.25V
PI
VREF1
TSUR
VREF2
ERR AMP
OSCILLATOR
VREF2
IN+
IN-
FB
OSC
SS/DTC
Vs12
Vs5
SS/DTC COMP
PWM COMP
CK
D
Q
!Q
C1
C2
HOUSEKEEPING CIRCUIT
PWM CIRCUIT
GND
IN 12V
OUT 12V
IN 5V
OUT 5V
IN 3.3V
OUT 3.3V
TO MOTHERBOARD
VCC
FAULT
UVP
Vuv12
EP
Tfault
Tpg
Tpg
Cpg
Trem
Cuv
Tuv
Vref1
OVP
OCP
Vcs5
Vov5
UVP
Vuv5
Vref1
OVP
OCP
Vcs33
Vov33
UVP
Vuv33
OCP
OVP
UVP
TSM121
Crem
Trem
Tuv
5V
Power Up
UV blanking
Vcc
Vcc
Vcc
+
Vcc
Cf
R7
C2
R6
R4
C1
R1 R2
R3
R5
C3
Rs33
Rs5
Rs12
R16
R15
R14
R13
R12



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