Diodes AP432_A Manuel d'utilisateur télécharger pdf (Page 6)

AP432/AP432A

Document number: DS31003 Rev. 18 - 2

6 of 15

www.diodes.com

September 2012

AP432/AP432A

Application Examples

VIN

Low L

imit V

REF

(1 + R1B/R2B) +V

High Limit V

REF

(1 + R1A/R2A)

R1A R1B

R2A R2B

Output ON when

Low Limit <

< High Limit

Fig.10 Over-Voltage / Under-Voltage Protection Circuit

OUT

= V

REF

/ R

Fig. 6 Current Limiter or Current

Source

OUT

= V

REF

/ R

Fig. 7 Constant-Current

Sink

Fig. 4 Voltage

Monitor

Fig. 5 Delay

Timer

OUT

= (1 + R1/R2) x V

REF

Fig. 8 Higher-Current Shunt

Regulator

OUT

PULSE

IMIT

(1 + R1/R2) x V

REF

Fig. 9 Crow Bar

OUT

OFF

Delay =

RC x ln (

-V

REF

)

LED on when Low Limit

High Limit

Low Limit

≈

REF

(1+R1B/R2B)

High Limit

≈

REF

(1+R1A/R2A)

R1A

R2A

R1B

R2B

1 2 3 4 5 6 7 8 9 10 11 ... 14 15

(Top View) 1
Cathode (C) 2
Anode (A) 2
Application Examples 6
Ordering Information 7
Marking Information 8
Marking Information (cont.) 9
Detail ‘A’ 11
AP432/AP432A 12

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Diodes AP432_A Manuel d'utilisateur Page 6

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