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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Datasheeet Circuit for Off-State Current. Higher Current Shunt Regulator. Deviation of reference input voltage, V DEVis defined as the maximum variation of the reference input voltage over the full temperature range. Due to the sharp turn-on characteristics this device is an excellent replacement for many zener diode applications.

LM is a regulator IC featured with adjustable output voltage. Wave Soldering 10 sec. Must be electrically isolated from the. Single Supply Comparator with. Ratio of the Change in Reference Voltage. Submitted by admin on 18 November C, slope is positive. A critical component is any component of a life. Now let us consider a simple application circuit for the device as shown below: Test Circuit for Curve A Above.

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Electrical specifications do not apply when operating the device. Absolute Maximum Ratings Note 2.

When the transistor turns ON the device draws current and because of this current drawing a voltage drop appears across R1 resistor which is in series with voltage source V1. Pin Configuration LM has three pins and function of each pin is mentioned below. Life support devices or systems are devices or. The LM is a 3-terminal adjustable shunt regulator with.

National Semiconductor

It popular application include. Output Control of a Three. Minimum Cathode Current for Regulation. It is now available in a chip sized pack.

Ratings apply to ambient temperature at 25? Also Vref is the voltage at the midpoint voltage divider network datsaheet by the two resistors R2 and R3. TL — Programmable Reference Voltage. Input Current vs V Z.

To ensure that the geometry of the micro SMD package. Also the current draw by op-amp and resistor network is neglected for easy explanation. AN for more detailed information regarding board.

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LM Datasheet(PDF) – National Semiconductor (TI)

Before going for application circuit of LMlet us first understand the internal working of the device and for that consider the functional diagram of the device as shown below. 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.

Adjustable Precision Zener Shunt Regulator. Current Limiter or Current Source. C unless otherwise specified.

National Semiconductor – datasheet pdf

The areas under the curves represent conditions that may cause the device to oscillate. Symbol and Functional Diagrams.

C, the SOT at 2. Absolute Maximum Ratings indicate limits beyond which damage to the device may occur.