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ZHT431FMTA Datasheet, PDF (1/8 Pages) Diodes Incorporated – ADJUSTABLE PRECISION ZENER SHUNT REGULATOR | |||
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A Product Line of
Diodes Incorporated
ZHT431
ADJUSTABLE PRECISION ZENER SHUNT REGULATOR
Description
The ZHT431 is a three terminal adjustable shunt regulator
offering excellent temperature stability and output current
handling capability up to 100mA. The device offers
extended operating temperature range working from -55 to
+125°C.
The output voltage may be set to any chosen voltage
between 2.5 and 20 volts by selection of two external
divider resistors.
The devices can be used as a replacement for zener
diodes in many applications requiring an improvement in
zener performance.
Features
⢠Surface mount SOT23 package
⢠0.5%, 1% and 2% tolerance
⢠Maximum temperature coefficient 67ppm/°C
⢠Temperature compensated for operation over the full
temperature range
⢠Programmable output voltage
⢠50μA to 100mA current sink capability
⢠Low output noise
⢠Available in âGreenâ Molding Compound (See page 7)
⢠Wide temperature range -55 to +125°C
Pin Assignments
SOT23
VZ
GND
(Top View)
VREF
Applications
⢠Series and shunt regulator
⢠Voltage monitor
⢠Over voltage / under voltage protection
⢠Switch mode power supplies
Typical Application Circuit
ZHT431
Document number: DS32157 Rev. 11 - 2
1 of 8
www.diodes.com
November 2010
© Diodes Incorporated
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