SPX432AM datasheet(2/11 Pages) SIPEX

2 / 11 page

Date: 12/11/04

SPX432 1.24V Precision Adjustable Shunt Regulator

ABSOLUTE MAXIMUM RATINGS

Cathode-Anode Reverse Breakdown V

KA ....................................... 20V

Anode-Cathode Forward Current, (<10ms) I

AK ................................. 1A

Operating Cathode Current I

KA .................................................... 80mA

Reference Input Current I

REF .......................................................... 1mA

Continuous Power Dissipation at 25°C P

TO-92 ..................................................................... 775mW

SOT-23 .................................................................. 200 mW

SOIC-8 .................................................................... 750mW

Junction Temperature T

J ........................................................... 150 °C

Storage Temperature T

STG .......................................... -65°C to 150 °C

Lead Temperature (Soldering 10 sec.) T

L .................................. 300°C

Stresses greater than those listed under ABSOLUTE MAXIMUM RATINGS may cause permanent damage to the device. This is a stress rating only

and functional operation of the device at these or any other conditions above those indicated in the operational sections of this specification is not

implied. Exposure to absolute maximum rating conditions for extended periods may affect reliability.

Electrical characteristics are guaranted over the full junction temperature range (0

°C to 105°C). Ambient temperature must

be derated based upon power dissipation and package thermal characteristics. Unless otherwise specified, test conditions are:

KA = VREF and IK = 10mA.

PARAMETER

SYMBOL

TEST

CONDITIONS

MIN

TYP

MAX

MIN

TYP

MAX

UNITS

CIRCUIT

SPX432A

SPX432

Output Voltage

VREF

1.2338

1.240

1.2462

1.2276

1.240

1.2524

Temperature Deviation

VREF

0 < TJ < 105°C12

1220

Line Regulation

VREF

VKA = 1.25V to 15V

Load Regulation

VREF

IK = 1mA to 80mA

Reference Input Current

IREF

µA

Reference Input Current

IREF

0 < TJ < 105°C,

0.3

0.6

0.3

0.6

µA

Temperature Coefficient

Minimim Cathode

IK(MIN)

0.6

Current for Regulation

Off State Leakage

IK(MIN)

VREF = 0V,

0.04

500

0.04

500

VKA = 18V

RECOMMENDED CONDITIONS

PARAMETER

SYMBOL

RATING

UNIT

Cathode Voltage

VKA

VREF to 18

Cathode Current

TYPICAL THERMAL RESISTANCES

PACKAGE

0JA

0JC

TYPICAL

DERATING

TO-92

160°C/W

80°C/W

6.3mW/°C

SOT-23

575°C/W 150°C/W

1.7 mW/°C

SOIC-8

175°C/W

45°C/W

5.7mW/°C

Typical deratings of the thermal resistances are given for ambient

temperature >25°C.

ELECTRICAL CHARACTERISTICS

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