TL430

ADJUSTABLE SHUNT REGULATORS

SLVS050B – JUNE 1976 – REVISED JULY 1999

3

POST OFFICE BOX 655303

noted)

PARAMETER

TEST

TEST CONDITIONS

TL430Y

UNIT

PARAMETER

FIGURE

TEST CONDITIONS

MIN

TYP

MAX

UNIT

VI(ref)

Reference input voltage

1

VZ = VI(ref),

IZ = 10 mA

2.5

2.75

3

V

II(ref)

Reference input current

2

IZ = 10 mA,

R2 =

∞

R1 = 10 k

Ω,

3

10

µA

IZK

Regulator current near lower knee of

regulation range

1

VZ = VI(ref)

0.5

2

mA

IZK

Regulator current at maximum limit of

1

VZ = VI(ref)

50

mA

IZK

g

regulation range

2

VZ = 5 V to 30 V,

See Note 4

100

mA

rz

Differential regulator resistance (see Note 5)

1

VZ = VI(ref), . . .

∆IZ = (52 – 2) mA

1.5

3

W

VZ = 3 V

50

Vn

Noise voltage

2

f = 0.1 Hz to 10 Hz

VZ = 12 V

200

µV

VZ = 30 V

650

NOTES:

4. The average power dissipation, VZ • IZ • duty cycle, must not exceed the maximum continuous rating in any 10-ms interval.

5. The regulator resistance for VZ > VI(ref), rz, is given by:

R1

R2

PARAMETER MEASUREMENT INFORMATION

V

Z +

V

I(ref)

1

)

R1

R2

) I

I(ref)

R1

VI(ref)

Input

VZ

IZ

II(ref)

IZ

VZ

Input

VI(ref)

R1

R2

TL430

TL430