ZH431

ABSOLUTE MAXIMUM RATING

40V

Cathode Current

50mA

Operating Temperature

-40 to 85°C

Storage Temperature

-55 to 125°C

Recommended Operating Conditions

Min

Max

Cathode Voltage

Vref

36V

Cathode Current

50

µA 30mA

SOT23

330mW

TO92

780mW

SOT223

2W

SO8

780mW

SOT89

1.5W

ELECTRICAL CHARACTERISTICS TEST CONDITIONS (Unless otherwise

PARAMETER

SYMBOL

VALUE

UNITS CONDITIONS

MIN

TYP MAX

Reference Voltage

2%

1%

2.45

2.475

2.50

2.50

2.55

2.525

Deviation of Reference

Input Voltage over

Temperature

8.0

17

mV

Ratio of the change in

Reference Voltage to the

Change in Cathode

Voltage

-0.7

-2.7

mV/V

-0.6

-2.0

mV/V

Reference Input Current

0.15 1.0

µA

Deviation of Reference

Input Current over

Temperature

0.06 0.2

µA

Minimum Cathode

Current for Regulation

21

50

µA

0.75

Ω

input voltage over the full temperature range.

⁄ °C)=

(T1−T2)

The dynamic output impedance, Rz, is defined as:

=

When the device is programmed with two external

resistors, R1 and R2, (fig 2) , the dynamic output

impedance of the overall circuit, R’, is defined as:

R1

R2

)

Vmax

Vmin

T1

T2

Vdev = Vmax - Vmin

Temperature

4-16

Not Recommended for New Design

Please Use ZR431