ZH431 Datasheet, PDF (1/7 Pages) List of Unclassifed Manufacturers – ADJUSTABLE PRECISION ZENER SHUNT REGULATOR

Not Recommended for New Design
Please Use ZR431
ADJUSTABLE PRECISION
ZENER SHUNT REGULATOR
Issue 2 - February 1998
ZH431
DEVICE DESCRIPTION
The ZH431 is a three terminal adjustable
shunt regulator offering excellent
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
requiring an improvement in zener
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
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}
• ^{50µA to 30mA current sink capability}
• ^{Low output noise}
APPLICATIONS
• ^{Shunt regulator}
• ^{Series regulator}
• ^{Voltage monitor}
• ^{Over voltage/ under voltage protection}
• ^{Switch mode power supplies}
SCHEMATIC DIAGRAM
V_Z
V ref
G
nd
4-15