ZR2431F01 ETC, ZR2431F01 Datasheet

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ZR2431F01

Manufacturer Part Number
ZR2431F01
Description
ADJUSTABLE PRECISION ZENER SHUNT REGULATOR
Manufacturer
ETC
Datasheet

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Part Number:
ZR2431F01TA
Manufacturer:
ZETEX
Quantity:
20 000
ADJUSTABLE PRECISION
ZENER SHUNT REGULATOR
ISSUE 3 DECEMBER 1997
DEVICE DESCRIPTION
The ZR2431 is a three terminal adjustable
s hu n t r e g u l a t or o f f e r i n g e xc el l e nt
temperature stability and output current
handling capability up to 25mA. The output
voltage may be set to any chosen voltage
between 1.24 and 15 volts by selection of
two external divider resistors.
The devices can be used as a replacement
for zener diodes in many applications
r e qu i r i n g a n i mpr o ve me nt i n z e ner
performance.
The ZR2431 is particularly used in the
feedback control loop of switch mode power
supplies. In this application the device 1.24
volt reference enables the generation of low
voltage supplies, typically 3.3 volts or 3 volts.
SCHEMATIC DIAGRAM
V
ref
4-154
FEATURES
APPLICATIONS
Surface mount SOT23, SOT223, SOT89
and SO8 packages
TO92 package
2.5% and 1% tolerance
Maximum temperature coefficient 52
ppm/°C
Temperature compensated for
operation over the full temperature
range
Programmable output voltage
100 A to 25mA current sink capability
Low output noise
Shunt regulator
Series regulator
Voltage monitor
Over voltage/ under voltage protection
Switch mode power supplies
G
V
ZR2431
Z
nd

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ZR2431F01 Summary of contents

Page 1

ADJUSTABLE PRECISION ZENER SHUNT REGULATOR ISSUE 3 DECEMBER 1997 DEVICE DESCRIPTION The ZR2431 is a three terminal adjustable ...

Page 2

ABSOLUTE MAXIMUM RATING Cathode Voltage ( Cathode Current Operating Temperature Storage Temperature Recommended Operating Conditions Cathode Voltage Cathode Current ELECTRICAL CHARACTERISTICS TEST CONDITIONS (Unless otherwise stated):T PARAMETER Reference Voltage 2.5% 1.0% Deviation of Reference Input Voltage over Temperature ...

Page 3

ZR2431 TYPICAL CHARACTERISTICS TYPICAL CHARACTERISTICS TYPICAL CHARACTERISTICS 140 130 120 110 100 90 80 -40 - Temperature (°C) Reference Current v Temperature -40 - Temperature (°C) Cathode ...

Page 4

TYPICAL CHARACTERISTICS 100 1k 10k 100k Frequency (Hz) Gain v Frequency Single 2.0 Pulse Vz 1.0 Repetitive Pulse 0 5.0 2.5 INPUT 0 0 100 200 300 Time (us) Pulse Response 30 25 ...

Page 5

ZR2431 DC TEST CIRCUITS I L Input V Input ref ref Fig 1 – Test Circuit for ref ref ...

Page 6

APPLICATION CIRCUITS V+ Vout R1 Vref Vref Vout = R2 SHUNT REGULATOR ZSR*** V+ Vout In Out Common R1 Vref R2 Vout = Vref + Vreg MIN R1 Vout = 1 + Vref R2 OUTPUT CONTROL ...

Page 7

... Top View – Pin 4 floating or connected to pin 2 TO92 Package Suffix – C Bottom View ORDERING INFORMATION Part Number Package ZR2431N802 SO8 ZR2431N801 SO8 ZR2431G02 SOT223 ZR2431G01 SOT223 ZR2431F02 SOT23 ZR2431F01 SOT23 ZR2431Z02 SOT89 ZR2431Z01 SOT89 ZR2431C02 TO92 ZR2431C01 TO92 4-160 Tol Part Mark % 2.5 ZR243102 1 ZR243101 2 ...

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