ZR431 datasheet(2/9 Pages) DIODES

2 / 9 page

ZR431

ADJUSTABLE PRECISION ZENER SHUNT REGULATOR

ZR431

Document number: DS33255 Rev. 6 - 2

2 of 9

www.diodes.com

October 2011

Absolute Maximum Ratings (Note 2)

Symbol

Parameter

Rating

Unit

Cathode Voltage

Cathode Current

150

Operating Temperature

-40 to +85

°C

TST

Storage Temperature

-55 to +125

°C

Power Dissipation (Notes 3, 4)

SOT23

330

SOT223

Notes:

2. Operation above the absolute maximum rating may cause device failure. Operation at the absolute maximum ratings, for extended periods, may

reduce device reliability. Unless otherwise stated voltages specified are relative to the ANODE pin.

3. TJ, max =150°C.

4. Ratings apply to ambient temperature at 25°C.

Recommended Operating Conditions (TA = 25°C)

Symbol

Parameter

Min

Max

Unit

Cathode Voltage

VREF

Cathode Current

0.05

100

Electrical Characteristics (TA = 25°C unless otherwise specified)

Symbol

Parameter

Test Conditions

Min

Typ.

Max

Unit

VREF

Reference voltage (Note 5)

1 %

0.5%

IL = 10mA (Fig 1), VZ = VREF

2.45

2.475

2.487

2.50

2.55

2.525

2.513

VDEV

Deviation of reference input voltage

over temperature

IL = 10mA, VZ = VREF

TA = Full range (Fig 1)

8.0

ΔVREF

ΔVZ

Ratio of the change in reference

voltage to the change in cathode

voltage

VZ from VREF to 10V

IZ = 10mA (fig 2)

-1.85

-2.7

mV/V

VZ from 10V to 20V

IZ = 10mA (Fig 2)

-1.0

-2.0

IREF

Reference input current

R1 = 10k, R2 = O/C, IL = 10mA (Fig 2)

0.12

1.0

μA

ΔIREF

Deviation of reference input current

over temperature

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

TA = Full range (Fig 2)

0.04

0.2

μA

IZ(MIN)

Minimum cathode current for

regulation

VZ = VREF (Fig 1)

µA

IZ(OFF)

Off-state current

VZ = 20V, VREF = 0V (Fig 3)

0.1

μA

Dynamic output impedance

VZ = VREF (Fig 1), f = 0Hz

0.75

Ω

Note 5:

0.5% and 1% SOT23 only

For definitions of reference voltage temperature coefficient and dynamic output impedance see NOTES following DC TEST CIRCUITS

ZR431 Datasheet(PDF) 2 Page - Diodes Incorporated

ZR431 Datasheet(HTML) 2 Page - Diodes Incorporated

Html Pages

1 2 3 4 5 6 7 8 9

Datasheet Download

Link URL