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AP432 データシートの表示(PDF) - Anachip Corporation

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AP432
Anachip
Anachip Corporation Anachip
AP432 Datasheet PDF : 16 Pages
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Adjustable Precision Shunt Regulator
„ Application Examples
AP432/AP432A
VIN
VIN
R1B
R1A
R
VIN
RCL IOUT
R2A
R2B
LED on when Low Limit VINHigh Limit
Low Limit VREF (1+R1B/R2B)
High Limit VREF (1+R1A/R2A)
Fig.4 Voltage Monitor
ON +
OFF
Delay
=
RC
x
ln(
VIN
VIN
-VREF
)
Fig.5 Delay Timer
IOUT = VREF / RCL
Fig.6 Current Limiter or Current Source
VIN
IOUT
VIN
R1
VOUT
VIN
PUSE
R1
VOUT
RS
IOUT = VREF / RS
Fig.7 Constant-Current Sink
R2
VOUT = (1 + R1/R2) ×V REF
Fig.8 Higher-Current Shunt Regulator
R2
LIMIT (1 + R1/R2) ×V REF
Fig.9 Crow Bar
VIN
R1A
R1B
+
R2A
R2B
Output ON when
Low Limint VINHigh Limit
VBE
Low Limit
High Limit
VREF(1 + R1B/R2B) +VBE
VREF(1 + R1A/R2A)
Fig.10 Over-Voltage / Under-Voltage Protection Circuit
Anachip Corp.
www.anachip.com.tw
Rev.1.1 Sep.23, 2004
7/16

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