AIC431 データシートの表示（PDF） - Analog Intergrations

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AIC431

Adjustable Precision Shunt Regulators

Analog Intergrations 

AIC431/TL431A/TL431

n SYMBOL

CATHODE (C)

REF (R)

AIC431

ANODE (A)

n BLOCK DIAGRAM

REF (R)

+

-

2.495V

ANODE (A)

n APPLICATION EXAMPLES

VIN

R1B

R1A

AIC431

R2A

AIC431

R2B

LED on when Low Limit<VIN< High Limit

l Low Limit ≅ VREF (1+R1B/R2B)

Delay=R x C x n ( VIN )

VIN− VREF

High Limit ≅ VREF (1+R1A/R2A)

Fig. 4 Voltage Monitor

VIN

R

ON

OFF

+

AIC431

C

Fig. 5Delay Timer

RCL IOUT

VIN

AIC431

IOUT=VREF/ RCL

Fig. 6 Current Limiter or Current Source

VIN

IOUT

AIC431

RS

IOUT=VREF /RS

Fig. 7 Constant-Current Sink

8

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