Diodes ZR431 User Manual download pdf (Page 6)

ZR431

ADJUSTABLE PRECISION ZENER SHUNT REGULATOR

ZR431

Document number: DS33255 Rev. 6 - 2

6 of 9

www.diodes.com

October 2011

© Diodes Incorporated

ADVANCE INFORMATION

Application Characteristics

V

REF

2R

1R

1

V

OUT

⎟

⎠

⎞

⎜

⎝

⎛

+=

SHUNT REGULATOR

V

REF

2R

1R

1

V

OUT

⎟

⎠

⎞

⎜

⎝

⎛

+=

HIGHER CURRENT SHUNT REGULATOR

V

OUT(MIN)

= V

REF

+ V

REG

V

REF

2R

1R

1

V

OUT

⎟

⎠

⎞

⎜

⎝

⎛

+=

OUTPUT CONTROL OF A THREE TERMINAL

FIXED REGULATOR

V

REF

2R

1R

1

V

OUT

⎟

⎠

⎞

⎜

⎝

⎛

+=

SERIES REGULATOR

SINGLE SUPPLY COMPARATOR WITH

TEMPERATURE COMPENSATED THRESHOLD

V

REF

B2R

B1R

1itlimLow

⎟

⎠

⎞

⎜

⎝

⎛

++

V

REF

A2R

A1R

1itlimHigh

⎟

⎠

⎞

⎜

⎝

⎛

++

OVER VOLTAGE/UNDER VOLTAGE

PROTECTION CIRCUIT

V+

V

OUT

V

REF

R1

R2

ZSR***

Common

IN OUT

V+

V

REF

V

OUT

R2

R1

30

Ω

0.01µF

V+ V

OUT

V

REF

R1

R2

V+

V

OUT

R1

R2

V

REF

V+

INPUT

V = 2.5V

TH

OUTPUT

V = V+

OFF

V 2V

ON

≈

V+

V

REF

OUTPUT

V

REF

R1A

R1B

R2A

R2B

1 2 3 4 5 6 7 8 9

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