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AP432L-B

Description
1-OUTPUT TWO TERM VOLTAGE REFERENCE, 1.24 V, PDSO8
Categoryaccessories   
File Size568KB,15 Pages
ManufacturerDiodes
Websitehttp://www.diodes.com/
Download Datasheet View All

AP432L-B Overview

1-OUTPUT TWO TERM VOLTAGE REFERENCE, 1.24 V, PDSO8

NOT RECOMMENDED FOR NEW DESIGN
USE AZ431L
AP432/AP432A
ADJUSTABLE PRECISION SHUNT REGULATOR
Description
The AP432 and AP432A 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 1.24V (V
REF
) up to 20V merely by
selecting two external resistors that act as a voltage divider network.
These devices have a typical output impedance of 0.2Ω. 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
Pin Assignments
(1) SOT25
(Top View)
NC
NC
CATHODE
1
2
3
4
REF
5
ANODE
CATHODE
ANODE
ANODE
NC
(2) SO-8
(Top View)
1
2
3
4
8
7
6
5
REF
ANODE
ANODE
NC
(3) SC59
(Top View)
3 REF
ANODE
1
2 CATHODE
(4) SC59R
(Top View)
3 CATHODE
ANODE 1
2 REF
AP432/AP432A 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.
Features
Precision Reference Voltage
AP432 : 1.24V ± 1%
AP432A : 1.24V ± 0.5%
Sink Current Capability: 200mA
Minimum Cathode Current for Regulation: 150μA
Equivalent Full-Range Temp Coefficient: 30 ppm/°C
Fast Turn-On Response
Low Dynamic Output Impedance: 0.2Ω
Programmable Output Voltage to 20V
Low Output Noise
Lead Free packages: SOT25, SC59, SC59R and SOT89-3
Lead-Free Finish; RoHS Compliant (Notes 1 & 2)
SOT23, SOT23R, SOT25, SC59, SC59R, SO-8 and SOT89:
Available in “Green” Molding Compound (No Br, Sb)
Halogen and Antimony Free. “Green” Device (Note 3)
(5) SOT23
(Top View)
3
ANODE
1
2 CATHOD
REF
ANODE
(6) SOT23R
(Top View)
3 CATHODE
1
2 REF
(7) SOT89-3
(Top View)
1
2
3
REF Anode Cathode
Notes:
1. EU Directive 2002/95/EC (RoHS) & 2011/65/EU (RoHS 2) compliant. All applicable RoHS exemptions applied.
2. See http://www.diodes.com for more information about Diodes Incorporated’s definitions of Halogen- and Antimony-free, "Green" and Lead-free.
3. Halogen- and Antimony-free "Green” products are defined as those which contain <900ppm bromine, <900ppm chlorine (<1500ppm total Br + Cl) and
<1000ppm antimony compounds.
Typical Applications Circuit
V
IN
V
OUT
+
C
in
AP432
R1
+
C
out
R2
V
OUT
= (1+R1/R2)V
REF
Precision Regulator
AP432/AP432A
Document number: DS31003 Rev. 19 - 3
1 of 15
www.diodes.com
September 2014
© Diodes Incorporated
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