ZR431LC02 查看數據表（PDF） - Zetex => Diodes

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ZR431LC02

ADJUSTABLE PRECISION ZENER SHUNT REGULATOR

Zetex => Diodes 

ZR431L

ABSOLUTE MAXIMUM RATING

Cathode Voltage (VZ)

Cathode Current

10V

50mA

Operating Temperature -40 to 85°C

Storage Temperature

-55 to 125°C

Recommended Operating Conditions

Min Max

Cathode Voltage

VREF 10V

Cathode Current

100µA 25mA

Power Dissipation (Tamb=25°C,

Tjmax=150°C)

SOT23

330mW

TO92

600mW

ELECTRICAL CHARACTERISTICS TEST CONDITIONS (Unless otherwise stated):Tamb=25°C

PARAMETER

VALUE

SYMBOL MIN TYP MAX UNITS CONDITIONS

Reference Voltage 2.5% Vref

1.0%

1.209 1.24 1.271 V

1.228 1.24 1.252

IL=10mA (Fig1), VZ=Vref

Deviation of Reference

Input Voltage over

Temperature

Vdev

4.0 8.0 mV IL=10mA, VZ=Vref

Ta=full range (Fig1)

Ratio of the change in

Reference Voltage to the

Change in Cathode

Voltage

∆Vref

∆VZ

0.5 2.0 mV/V VZ from Vref to 10V

IZ=10mA (Fig2)

Reference Input Current Iref

Deviation of Reference

∆Iref

Input Current over

Temperature

0.02 0.11 0.4 µA

0.02 0.2 µA

R1=10k, R2=O/C, lL=10mA (Fig2)

R1=10k, R2=O/C, IL=10mA

Ta=full range (Fig2)

Minimum Cathode

Current for Regulation

IZmin

30 100 µA

Off-state Current

IZoff

10 30 µA VZ=10V, Vref =0V (Fig3)

Dynamic Output

RZ

Impedance

0.25 2

Ω

VZ=Vref (Fig1), f=0Hz,

IL=10mA

Deviation of reference input voltage, Vdev, is defined as the maximum variation of the

reference input voltage over the full temperature range.

Vmax

Vmin

Vdev = Vmax - Vmin

T1

Temperature

T2

The average temperature coefficient of the

reference input voltage, Vref is defined as:

Vref (ppm⁄ °C)=VdVervefx(T110−0T0020) 0

The dynamic output impedance, Rz, is defined

as:

RZ

=

∆VZ

∆IZ

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:

R’=Rz (1+RR12)

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