AP431IA Ver la hoja de datos (PDF) - Anachip Corporation

Número de pieza

componentes Descripción

Fabricante

AP431IA

Adjustable Precision Shunt Regulator

Anachip Corporation 

Adjustable Precision Shunt Regulator

PULSE RESPONSE

6

TA=25oC

5

Input

4

3

Output

2

1

0

-1

0

1

2

3

4

5

6

7

t-Time-µ S

AP431/AP431A

220Ω

Pulse

Generator

f=100kHz

50Ω

Output

GND

TEST CIRCUIT FOR PULSE RESPONSE

STABILITY BOUNDARY CONDITIONS†

100

90

A VKA=Vref

B VKA=5V

TA=25oC

80 C VKA=10V

D VKA=15V

B

70

Stable

60

Stable

C

50

A

40

30

D

20

10

0

0.001

0.01

0.1

1

10

CL-Load Capacitance-µF

The areas under the curves represent conditions that may cause the

device to oscillate. For curves B, C, and D, R2 and V+ were adjusted

to establish the initial V KA and IKA conditions with CL=0.VBATT and

CL were then adjusted to determine the ranges of stability.

150Ω

I KA

+

CL

VBATT

-

TEST CIRCUIT FOR CURVE A

R1=10KΩ

CL

R2

I KA

150Ω

+

VBATT

-

TEST CIRCUIT FOR CURVE B, C, AND D

Anachip Corp.

www.anachip.com.tw

Rev.1.0 May.7, 2004

8/17

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