Datasheet > GM432AST25R

GM432AST25R

更新时间： 2022-04-23 23:00:11

品牌	Logo	应用领域
GAMMA		稳压器
页数	文件大小	规格书
13页	229K
描述
1.24V ADJUSTABLE PRECISION SHUNT REGULATORS

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GM432AST25R 数据手册

Power Management

A A

MICROELECTRONICS

GM432

1.24V ADJUSTABLE PRECISION SHUNT REGULATORS

TYPICAL APPLICATION CIRCUIT

Notes:

1. Set V

according to the following equation:

OUT

= V

REF

( 1 +

)+ I

REF

OUT

2. Choose the value for R as follows:

The maximum limit for R should be such that the cathode current, I , is greater

than the minimum operating current (80µA) at V

IN(MIN)

GM432

REF

The minimum limit for R should be such that the cathode current, I , does not

exceed 100mA under all load conditions, and the instantaneous turn-on value

for I does not exceed 150 mA. Both of the following conditions must be met:

IN(max)

GND

Rmin

(to limit instantaneous turn-on I )

150mA

-V

IN(max) OUT

Rmin

(to limit I under normal operating conditions)

+100mA

OUT(min)

Typical Performance Characteristics

200

175

150

125

100

REF

=25°C

=25 C

min

-5

-25

-50

-1

-10

-2

-0.5

0.5

1.5

-1

0.5

1.5

Cathode Voltage(V)

Cathode Voltage (V)

Figure 10. Cathode Current vs.

Cathode Voltage

Figure 9. Cathode Current vs.

Cathode Voltage

250

200

150

100

1.2440

1.2420

1.2400

1.2380

1.2360

1.2340

=10 mA

R1=10KW

R2= Open

20 30

40 50 60 70

10 20

30 40 50

60 70

T , Junction Temperature - C

Figure 12. Ref. Input Current vs.

Junction Temperature

Figure 11. Ref. Voltage vs. Junction

Temperature

1...4 5 678 9 10...13

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