Rev. 11/21/00

TC in mV/°C =

∆V

∆T

A

TC in %/°C =

V

∆T

A

∆V

REF

TC in ppm/°C =

V

∆T

A

∆V

REF

5000

∆Τ

-55

0.06 mV/°C

∆V

REF

0

0

0

-20

-10

0.5

Temperature (°C)

0.002 %/°C

24 ppm/°C

-25

0

25

50

75 100 125

I

K

I

REF

V

IN

V

V

IN

V

KA

I

K

R

1

R

2

(V

Figure 1b. Test Circuit 2

Figure 1a. Test Circuit 1

V

IN

V

KA

I

K (OFF)

Figure 1c. Test Circuit 3

I

REF

SPX432

temperature must be derated based upon power dissipation and package thermal characteristics. Unless otherwise specified, test

Test

SPX432A

SPX432

Parameter

Symbol

Circuit

Test Condition

Min

Typ

Max

Min

Typ

Max

Unit

Output Voltage

1

1

°C,

1.2338

1.240

1.2462

1.2276

1.240

1.2524

V

Line Regulation

1

19

37

19

37

mV

Load Regulation

1

3

6

3

6

mV

Temperature Deviation

1

°C

2

6

2

6

mV

Reference Input Current

2

3

6

3

6

µA

Reference Input Current

Temperature Coefficient

2

°C

0.3

0.6

0.3

0.6

µA

Minimum Cathode

Current for Regulation

1

0.6

1

0.6

1

mA

Off State Leakage

3

18V

0.04

500

0.04

500

nA

Calculating Average Temperature Coefficient (TC)

TEST CIRCUITS