ZR431LF02 ZETEX [Zetex Semiconductors], ZR431LF02 Datasheet

no-image

ZR431LF02

Manufacturer Part Number
ZR431LF02
Description
ADJUSTABLE PRECISION ZENER SHUNT REGULATOR
Manufacturer
ZETEX [Zetex Semiconductors]
Datasheet

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Part Number:
ZR431LF02TA
Manufacturer:
ZETEX
Quantity:
20 000
ADJUSTABLE PRECISION
ZENER SHUNT REGULATOR
Issue 1 - NOVEMBER 1998
DEVICE DESCRIPTION
The ZR431L is a three terminal adjustable
s h u n t r e g u l a t o r o f f e r i n g e x c e l 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 10 volts by selection of
two external divider resistors.
The devices can be used as a replacement
for zener diodes in many applications
r e q u i r i n g a n i m p r ov e me nt i n z e n e r
performance.
The ZR431L 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
FEATURES
APPLICATIONS
Surface mount SOT23 package
TO92 package
2.5% and 1% tolerance
Maximum temperature coefficient 50
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
ZR431L

Related parts for ZR431LF02

ZR431LF02 Summary of contents

Page 1

ADJUSTABLE PRECISION ZENER SHUNT REGULATOR Issue 1 - NOVEMBER 1998 DEVICE DESCRIPTION The ZR431L is a three terminal adjustable ...

Page 2

ZR431L 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 ...

Page 3

... CONNECTION DIAGRAMS SOT23 Package Suffix – F Top View ORDERING INFORMATION Part Package Tol Number % ZR431LF02 SOT23 2.5 ZR431LF01 SOT23 1 ZR431LC02 TO92 2.5 ZR431LC01 TO92 1 TO92 Package Suffix – C Bottom View Part Mark 43L 43M ZR431L02 ZR431L01 ZR431L ...

Page 4

ZR431L TYPICAL CHARACTERISTICS 140 130 120 110 100 90 80 -40 - Temperature (° C) Reference Current v Temperature -40 - Temperature (° C) Cathode Current v Temperature 1.244 ...

Page 5

DC TEST CIRCUITS L HAB Fig 1 – Test Circuit for HAB Fig 2 – Test Circuit for V ref 1-42 ZR431L >V Fig 3 – Test Circuit for Off z ref State current ...

Page 6

ZR431L APPLICATION CIRCUITS V+ R1 Vref Vout = R2 SHUNT REGULATOR ZSR*** V+ Out In Common Vout = Vref + Vreg MIN R1 Vout = OUTPUT CONTROL OF A THREE TERMINAL FIXED REGULATOR ...

Page 7

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

Related keywords