ZH431F01TA

Manufacturer Part NumberZH431F01TA
DescriptionIC ADJ SHUNT REG 2.5-36V SOT23-3
ManufacturerDiodes Zetex
ZH431F01TA datasheet
 

Specifications of ZH431F01TA

Reference TypeShuntVoltage - Output2.5V
Tolerance±1%Temperature Coefficient55ppm/°C
Number Of Channels1Current - Cathode21µA
Current - Output30mAOperating Temperature-40°C ~ 85°C
Mounting TypeSurface MountPackage / CaseTO-236-3, SC-59, SOT-23-3
Lead Free Status / RoHS StatusContains lead / RoHS non-compliantVoltage - Input-
Current - Quiescent-Other namesZH431F01TR
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ADJUSTABLE PRECISION
ZENER SHUNT REGULATOR
Issue 2 - February 1998
DEVICE DESCRIPTION
The ZH431 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 30mA. The output
voltage may be set to any chosen voltage
between 2.5 and 36 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.They are also ideal for use in
the feedback circuits of off line SMPUs as
well as many general purpose regulator and
reference applications where initial accuracy
and low temperature coefficient are key
requirements.
Note:
ZH431 is not recommended for new designs.
Refer to ZR431
SCHEMATIC DIAGRAM
V
ref
Not Recommended for New Design
Please Use ZR431
FEATURES
Surface mount SO8, SOT223,SOT23
and SOT89 packages
TO92 package
2% and 1% tolerance
Maximum temperature coefficient 55
ppm/°C
Temperature compensated for
operation over the full temperature
range
Programmable output voltage
50 A to 30mA current sink capability
Low output noise
APPLICATIONS
Shunt regulator
Series regulator
Voltage monitor
Over voltage/ under voltage protection
Switch mode power supplies
4-15
ZH431
V
Z
G
nd

ZH431F01TA Summary of contents

  • Page 1

    ADJUSTABLE PRECISION ZENER SHUNT REGULATOR Issue 2 - February 1998 DEVICE DESCRIPTION The ZH431 is a three terminal adjustable ...

  • Page 2

    ZH431 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 =25°C amb PARAMETER Reference Voltage 2% 1% Deviation of Reference Input ...

  • Page 3

    TYPICAL CHARACTERISTICS 200 180 160 140 120 100 -40 - Temperature (°C) Reference Current v Temperature -40 - Temperature (°C) Cathode Current v Temperature 2.52 2.51 ...

  • Page 4

    Not Recommended for New Design ZH431 TYPICAL CHARACTERISTICS 10k 100 1k Frequency (Hz) Gain v Frequency 3.0 REPETITIVE PULSE 2.0 SINGLE PULSE 1 INPUT 0 0 0.05 0.1 0.15 Time ...

  • Page 5

    DC TEST CIRCUITS I L Input Fig 1 – Test Circuit for ref Not Recommended for New Design Please Use ZR431 Fig 2 – Test Circuit for V 4-19 ZH431 >V z ref ...

  • Page 6

    Not Recommended for New Design ZH431 APPLICATION CIRCUITS V+ R1 Vref Vref Vout = R2 SHUNT REGULATOR ZSR*** V+ Vout In Out Common R1 Vref R2 Vout = Vref + Vreg MIN R1 Vout = 1 ...

  • Page 7

    CONNECTION DIAGRAMS SO8 Package Suffix – N8 Top View SOT23 Package Suffix – F Top View ORDERING INFORMATION Part Number Package Tol. % ZH431C01 TO92 1.0 ZH431C02 TO92 2.0 ZH431G01 SOT223 1.0 ZH431G02 SOT223 2.0 ZH431F01 SOT23 1.0 ZH431F02 SOT23 ...