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Part Number: AP432A

 

 

 

 

Description: The AP432/432A are 3-terminal adjustable precision shunt regulators with guaranteed stable temperature over the applica...


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AP432A General Description


The AP432/432A are 3-terminal adjustable precision shunt regulators with guaranteed stable temperature over the applicable extended commercial temperature range. The output voltage may be set at any level greater than 1.24\/ (VREF) up to 20V merely by selecting two external resistors that act as a voltage divider network. These devices have a typical output impedance of 0.2. Active output circuitry provides very sharp turn-on characteristics, making these devices excellent improved replacements for Zener diodes in many applications.

The precise +/- 1% reference voltage tolerance of the AP432/432A make it possible in many applications to avoid the use of a variable resistor, consequently saving cost and eliminating drift and reliability problems associated with it.

AP432A Maximum Ratings

Cathode Voltage......................................................................20V
Continuous cathode current..................................-10mA ~ 250mA
Reference input current range...............................................10mA
Operating temperature range (AP432) ................... -20oC ~ 85oC
                                               (AP432I)..................... -40oC~85oC
Lead Temperature................................................................260oC
Storage Temperature .............................................-65oC ~ 150oC
Power Dissipation (Notes 1. 2) SOT89 ................................ 0. 80W
                                                 TO92...... ............................. 0.78W
                                                 SOT23 ................................. 0.25W
                                                 SOT25...................................0.25W
                                                 SOP....................................... 0.6W
Note 1: TJ, max =150oC. .
Note 2: Ratings apply to ambient temperature at 25oC.

AP432A Features

- Precision reference voltage
   AP432 : 1.24V ± 1%
   AP432A : 1.24V ± 0.5%
- Sink current capability: 200mA.
- Minimum cathode current for regulation: 150A
- Equivalent full-range temp coefficient: 30 ppm/oC
- Fast turn-on Response.
- Low dynamic output impedance: 0.2
- Programmable output voltage to 20v
- Low output noise
- Packages: SOT89, SOT23, SOT25, SOP8 and TO92

AP432A Connection Diagram

AP432A  Connection Diagram

AP432A datasheet

AP432A
PDF/DataSheet Download

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