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UPC1945 Datasheet(PDF) 3 Page - NEC

Part No. UPC1945
Description  ADJUSTABLE PRECISION SHUNT REGULATORS
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Maker  NEC [NEC]
Homepage  http://www.nec.com/
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UPC1945 Datasheet(HTML) 3 Page - NEC

 
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Data Sheet G14875EJ2V0DS
3
µPC1945
STANDARD CONNECTION
CKA
VCC
R1
VIN
VOUT
VOUT
1
+
R2
R1
GND
R0
R2
REF
A
K
× VREF
Note
Note
CKA = 100 pF minimum. Connect to prevent oscillation.
Caution Supply K (Cathode) and VCC from the same power supply.
Remark The
µPC1945 is represented by the following symbol in this data sheet.
REF
VCC
A
K
APPLICATION CIRCUIT EXAMPLE
CKA
VCC
VO
+
VO
REF
A
K
photocoupler
Input to control IC


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