GM431 查看數據表（PDF） - Gamma Microelectronics Inc.

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GM431

2.5V ADJUSTABLE SHUNT REGULATOR

Gamma Microelectronics Inc. 

AA

MICROELECTRONICS

Power Management

GM431

2.5V ADJUSTABLE SHUNT REGULATOR

ELECTRICAL CHARACTERISTICS (TA = 25°C unless otherwise noted)

GM431C (2.0%)

PARAMETER

CONDITION

MIN

Reference Voltage

Vref

VKA = Vref, IK = 10 mA, TA = 25°C (1)

VKA=Vref,IK=10 mA,TA= 0 to 70°C(1)

Vref temp deviation

Vdev VKA = Vref, IK = 10 mA ,(1) TA = full range

Ratio of change in Vref

to change in VKA

DVref IK = 10mA DVKA = 10V to Vref

DVKA

DVKA = 36V to 10V

Reference input current Iref IK = 10mA, R1 = 10KW, R2 = (2)

Deviation of reference

input current over full

Iref(dev) IK = 10mA, R1 = 10KW, R2 = (2)

temperature range

TA = full range

2.45

-2.7

-2.0

Minimum operating

current

IK(min) VKA = Vref (1)

Off-state cathode

current

Dynamic impedance

VKA = 36V, Vref = 0V (3)

IK(off)

VKA = 16V, Vref = 0V (3)

| ZKA | f 1kHz,VKA=Vref, IK=1mA to 100mA (1)

NOTES:

(1) See test circuit 1.

(2) See test circuit 2.

(3) See test circuit 3.

TYP MAX UNIT

2.500 2.55

V

4

17

mV

-1.0

mV/V

-0.4

0.7

4.0

mA

0.4

1.2

mA

0.4

1.0

mA

0.1

1

mA

0.2

0.50

W

TEST CIRCUITS

VIN

VKA

lk

Vref

VIN

VKA

VIN

lref

R1

Vref

R2

lref

Vref

VKA

lk(off)

Test Circuit 1

VKA = Vref

Test Circuit 2

VKA > Vref

Test Circuit 3

Off-State

6

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