AP431IAL datasheet(4/17 Pages) ANACHIP

4 / 17 page

Adjustable Precision Shunt Regulator

AP431/AP431A

Anachip Corp.

www.anachip.com.tw

Rev.1.0 May.7, 2004

4/17

Absolute Maximum Ratings

Cathode Voltage ………………………………......…..............................……………………………...……….36V

Continuous Cathode Current ………………………….……...............................…………….... -10mA ~ 250mA

Reference Input Current Range ……………..………..............……..............................………….…....... 10mA

Operating Temperature Range (AP431)…………..…….…….....………………...........………......-20

oC ~ 85oC

(AP431I).……………….….............………………………...…….. -40

oC ~ 85oC

Lead Temperature………………………….………….…….…………....…………………….........…............ 260

Storage Temperature ……………………………......…....….............………………..……............ -65

oC ~ 150oC

Power Dissipation (Notes 1. 2)

SOT89 Package .…………......……………………….............….... 0. 80W

TO92 Package ….…………..………………………....……….....… 0.78W

SOT23 package .……………..…………….......………………….…. 0.25W

SOT25 Package……………….……...…………….…………………..0.25W

SOP Package………………..………………………………..……… 0.6W

Note 1: TJ, max =150

Note 2: Ratings apply to ambient temperature at 25

Electrical Characteristics (Ta=25oC , unless otherwise specified.)

PARAMETER

TEST CONDITIONS

SYMBOL MIN. TYP. MAX. UNIT

AP431

2.470 2.495 2.520

Reference voltage

VKA = VREF,

I KA = 10mA (Fig.1) AP431A

VREF

2.482

2.507

Deviation of Reference input voltage

over temperature (Note 3)

VKA = VREF, IKA = 10mA,

Ta = Full range (Fig.1)

VREF

8.0

VKA = 10V

~VREF

∆VREF

-1.4

-2.0 mV/V

Ratio of the change in Reference

voltage to the change in Cathode

voltage

IKA = 10mA (Fig.2)

VKA= 36V ~10V

∆VKA

-1

-2

mV/V

Reference input current

R1 = 10KΩ,R2 = ∞ IKA= 10mA

(Fig.2)

IREF

1.4

3.5

µA

Deviation of Reference input current

over temperature

R1 = 10KΩ,R2 = ∞ IKA = 10mA

Ta = Full range (Fig.2)

αIREF

0.4

1.2

µA

Minimum Cathode current for

regulation

VKA = VREF (Fig.1)

IKA(MIN)

0.19

0.5

Off-state current

VKA = 36V, VREF = 0V (Fig.3)

IKA(OFF)

0.1

1.0

µA

Dynamic output impedance (Note 4)

V KA = VREF V KA = VREF

∆IKA = 0.1mA ~ 15mA

Frequency ≤ 1KHz (Fig.1)

0.2

0.5

Ω

VMAX

VMIN

TEMPERATURE

VDEV = VMAX - VMIN

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