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PDF ( 数据手册 , 数据表 ) ZR431

零件编号 ZR431
描述 ADJUSTABLE PRECISION ZENER SHUNT REGULATOR
制造商 Zetex Semiconductors
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ZR431 数据手册, 描述, 功能
ADJUSTABLE PRECISION
ZENER SHUNT REGULATOR
ISSUE 4 – SEPTEMBER 2000
DEVICE DESCRIPTION
The ZR431 is a three terminal adjustable
shunt regulator offering excellent
temperature stability and output current
handling capability up to 100mA. 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.
SCHEMATIC DIAGRAM
ZR431
FEATURES
 Surface mount SO8, SOT223 and
SOT23 packages
 TO92 package
 2%, 1 % and 0.5% tolerance
 Max. temperature coefficient 55 ppm/°C
 Temperature compensated for operation
over the full temperature range
 Programmable output voltage
 50A to 100mA current sink capability
 Low output noise
APPLICATIONS
 Shunt regulator
 Series regulator
 Voltage monitor
 Over voltage/ under voltage protection
 Switch mode power supplies
VZ
V ref
4-189
78
G
nd












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