LM431 DATASHEET PDF

The LM is a 3-terminal adjustable shunt regulator with guaranteed temperature stability over the entire tempera- ture range of operation The output voltage. LM Adjustable Precision Zener Shunt Regulator An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in. View LM Datasheet datasheet from Texas Instruments at Digikey.

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Deviation of reference input voltage, V DEVis defined as the maximum variation of datassheet reference input voltage over the full temperature range. It popular application include. Test Circuit for Curve A Above. Single Supply Comparator with.

The output voltage may be set at any level greater than 2. Input Current vs V Z. TL — Programmable Reference Voltage. Submitted by admin on 18 November Pin Configuration LM has three pins and function of each pin is mentioned below.

It is a 3-terminal shunt regulator with guaranteed temperature stability over the entire temperature range of operation. C unless otherwise specified. Internal Power Dissipation Lj431 3, 4. Now let us consider a simple application circuit for datashet device as shown below: C, the SO-8 at 6. Also the current draw by op-amp and resistor network is neglected for easy explanation.

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LM Zener Shunt Regulator Pinout, Features, Circuit & Datasheet

Wave Soldering 10 sec. Ratings apply to ambient temperature at 25? Higher Current Shunt Regulator.

LM is a regulator IC featured with adjustable output voltage. When the transistor turns ON the device draws current and because dwtasheet this current drawing a voltage drop appears across R1 resistor which is in series with voltage source V1. Distributors for availability and specifications.

A critical component is any component of a life. National does not assume any responsibility for use of any circuitry described, no circuit patent licenses are implied and National reserves the right at any time without notice to change said circuitry and specifications.

Due to the sharp turn-on characteristics this device is an excellent replacement for many zener diode applications. Here Ic is the current drawn by the transistor. Absolute Maximum Ratings Note 2.

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The dynamic output impedance, r Zis defined as: Here reference voltage Vref is the voltage at the non-inverting terminal of the op-amp and this voltage determines whether the op-amp outputs positive voltage or not.

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Ratio of the Change in Reference Voltage.

Also Vref is the voltage at the midpoint voltage divider network formed by the two resistors R2 and R3. Life support devices or systems are devices or. Current Limiter or Current Source.

LM can be configured in many application circuits and a few are stated in the datasheet. Whenever the output crosses threshold threshold is value determined by R2 and R3 value the op-amp get feedback via Vref and it drives the transistor ON. Infrared or Convection 20 sec.