HomedatasheetCL2431VS

CL2431VS Datasheet

Precision Adjustable Shunt Reference
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Description

Features, Applications

FEATURES DESCRIPTION The is a three terminal adjustable voltage reference designed to act as an open-loop error amplifier with a 2.5V temperature compensated reference. Operating as a low temperature coefficient zener which is programmable from VREF to 18V with two external resistors while providing a wide operating current range to 100mA with a typical dynamic impedance As a shunt regulator the device can be used as either a positive or negative voltage reference. Active output circuitry provides a very sharp turn-on characteristic, making the CL2431 an excellent replacement for low-voltage zener diodes in many applications, including on-board regulation and adjustable power supplies. ORDERING INFORMATION Part CL2431IVS CL2431IAVS Package SOT-23 Tolerance Temperature Range to +85oC

Temperature-Compensated: 30ppm/ C Trimmed 0.5% Bandgap Reference Internal Amplifier with 100mA Capability Temperature Range: Extended to 105oC Low Frequency Dynamic Output Impedance: < 150m Low Output Noise SOT-23 Replacement for TL431

CALOGIC CORPORATION, 237 Whitney Place, Fremont, California 94539, Telephone: 510-656-2900, FAX: 510-651-3025

SYMBOL VKA IAK IKA IREF PD PARAMETER Cathode-Anode Reverse Breakdown Anode-Cathode Forward Current Operating Cathode Current Reference Input Current Continuous Power Dissipation oC SOT-23 Junction Temperature Storage Temperature Lead Temperature, Soldering 10 Seconds RATING UNITS A mA

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.

SYMBOL VKA IK PARAMETER Cathode Voltage Cathode Current RATING VREF 18 10 UNIT V mA

Electrical characteristics are guaranteed over full junction temperature range to 105 oC). Ambient temperature must be derated based on power dissipation and package thermal characteristics. The conditions are: VKA = VREF and = 10mA unless otherwise stated. SYMBOL VREF TC VREF VK IREF IK(MIN) IK(OFF) ZKA PARAMETER Reference Voltage VREF with Temp.* Ratio of Change in VREF to Cathode Voltage Reference Input Current IREF Temp Deviation Min I K for Regulation Off State Leakage Dynamic Output Impedance �2.7 �2 MIN 2.490 2.470 TYP mA nA VREF = 0V, VKA to 100mA Over Temp. MAX 2.520 0.2 UNIT V mV/ oC mV/V CIRCUIT VREF to 18V TEST CONDITION = 25 oC, 1.0% CL2431



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Manufacturer information

CALOGIC, LLC
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