SPX2431L datasheet(2/11 Pages) SIPEX

2 / 11 page

Rev. 08/13/02

SPX2431L 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 .................................................. 100mA

Reference Input Current I

REF ....................................................... 1.0mA

Continuos 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 to 150 °C

Lead Temperature (Soldering 10 sec.) T

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

NOTE: 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 condi-

tions for extended periods may affect reliability.

TYPICAL THERMAL RESISTANCES

PACKAGE

0JA

0JC

TYPICAL DERATING

TO-92

160°C/W 80°C/W

6.3 mW/°C

SOT-23

575°C/W 150°C/W

1.7 mW/°C

SOIC-8

175°C/W 45°C/W

5.7 mW/°C

Typical deratings of the thermal resistances are given for ambient

temperature >25°.

ELECTRICAL CHARACTERISTICS

Electrical characteristics at 25

°C I

K = 10mA VK = VREF, unless otherwise specified.

PARAMETER

SYMBOL FIGURE CONDITIONS

MIN

TYP

MAX

MIN

TYP

MAX

UNITS

SPX2431LA

SPX2431

Reference Voltage

VREF

2.490

2.503

2.515

2.470

2.495

2.520

2TJ = 0°C to 150°C

2.469

2.536

2.449

2.541

∆VREF withTemp.*

0.07

0.20

0.07

0.20

mV/°C

Ratio of Change in VREF

∆ VREF

VREF to 10V

-2.7

-1.01

-2.7

-1.01

mV/V

to Cathode Voltage

∆VK

10V to 20V

-2.0

-0.4

0.3

-2.0

-0.4

0.3

Reference Input Current

IREF

0.7

4.0

0.7

4.0

µA

IREF Temp Deviation

∆IREF

3TJ = 0°C to 105°C

0.4

1.2

0.4

1.2

µA

Min IK for Regulation

IK(MIN)

160

µA

Off State Leakage

IK(OFF)

4VREF = 0V,

0.04

500

0.04

500

VKA = 20V

Dynamic Output

ZKA

2ƒz ≤ 1kHz

0.15

0.5

0.15

0.5

Ω

Impedance

IK = 0.16 to 100mA

Operating Range (T

J ) = -40°C to 125°C.

* See appropiate test circuit (Figure 2)

RECOMMENDED CONDITIONS

PARAMETER

SYMBOL

RATING

UNIT

Cathode Voltage

VKA

VREF to 20

Cathode Current

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