Anterwell Technology Ltd.
Large Original stock of IC Electronics Components, Transistors, Diodes etc.
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Storage Temperature: | −65˚C To +150˚C | Operating Temperature (Industrial): | −40˚C To +85˚C |
---|---|---|---|
Cathode Voltage: | 37V | Continuous Cathode Current: | −10 MA To +150 MA |
Reference Voltage: | −0.5V | Reference Input Current: | 10 MA |
High Light: | bridge rectifier circuit,signal schottky diode |
LM431 Adjustable Precision Zener Shunt Regulator
General Description
The LM431 is a 3-terminal adjustable shunt regulator with guaranteed temperature stability over the entire temperature range of operation. It is now available in a chip sized package (4-Bump micro SMD) using National’s micro SMD package technology. The output voltage may be set at any level greater than 2.5V (VREF) up to 36V merely by selecting two external resistors that act as a voltage divided network. Due to the sharp turn-on characteristics this device is an excellent replacement for many zener diode applications.
Features
• Average temperature coefficient 50 ppm/˚C
• Temperature compensated for operation over the full temperature range
• Programmable output voltage
• Fast turn-on response
• Low output noise
• LM431 in micro SMD package
Absolute Maximum Ratings (Note 2)
If Military/Aerospace specified devices are required, please contact the National Semiconductor Sales Office/ Distributors for availability and specifications.
Storage Temperature Range −65˚C to +150˚C
Operating Temperature Range
Industrial (LM431xI) −40˚C to +85˚C
Commercial (LM431xC) 0˚C to +70˚C
Soldering Information
Infrared or Convection (20 sec.) 235˚C
Wave Soldering (10 sec.) 260˚C (lead temp.)
Cathode Voltage 37V
Continuous Cathode Current −10 mA to +150 mA
Reference Voltage −0.5V
Reference Input Current 10 mA
Internal Power Dissipation (Notes 3, 4)
TO-92 Package 0.78W
SO-8 Package 0.81W
SOT-23 Package 0.28W
micro SMD Package 0.30W
Operating Conditions
Min Max
Cathode Voltage VREF 37V
Cathode Current 1.0 mA 100 mA
Connection Diagrams
Symbol and Functional Diagrams
DC Test Circuits
Stock Offer (Hot Sell)
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