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USRB01 Datasheet(PDF) 2 Page - Unisonic Technologies

Part # USRB01
Description  HIGH PRECISION CC/CV PRIMARY-SIDE PWM POWER SWITCH
PDF  7 Pages
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Manufacturer  UTC [Unisonic Technologies]
Direct Link  http://www.utc-ic.com
Logo UTC - Unisonic Technologies

USRB01 Datasheet(HTML) 2 Page - Unisonic Technologies

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USRB01
Preliminary
`
LINEAR INTEGRATED CIRCUIT
UNISONICTECHNOLOGIESCO.,LTD
2 of 7
www.unisonic.com.tw
QW-R103-080.b
PIN CONFIGURATION
PIN DESCRIPTION
PIN NO.
PIN NAME
DESCRIPTION
1
VCC
Power supply
2
VC
Low pass filter capacitor for cable compensation
3
FB
The voltage feedback from the auxiliary winding
4
CS
Current sense input
5~6
C
The collector of the power NPN
7~8
GND
Ground
BLOCK DIAGRAM
Regulator
&Ref
Por
VCC
Logic core
OVP
+
-
FB
+
-
CV
controller
Base
drive
+
-
C
+
-
LEB
CC
controller
VC
GND
Tdemag
detector
CS
I_ drive
Drop
comp
5/6
4
7/8
2
3
1



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