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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Input Current vs V Z. Symbol and Functional Diagrams. Absolute Maximum Ratings indicate limits beyond which damage to the device may occur. Current Limiter or Current Source. Due to the sharp turn-on characteristics this device is an excellent replacement for many zener diode applications. Dynamic Output Impedance Note 6. When the device is programmed with two external resistors, R1 and R2, see Figure 2the dynamic output impedance of the overall circuit, r Lm341is defined as: Test Circuit for Off-State Current.

LM Datasheet(PDF) – National Semiconductor (TI)

Wave Soldering 10 sec. 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. The dynamic output impedance, r Zis defined as: To ensure that the geometry of the micro SMD package. Submitted by admin on 18 November 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.


C, the SO-8 at 6. Here Ic is the current drawn dayasheet the fatasheet. LM can be configured in many application circuits and a few are stated in the datasheet. Single Supply Comparator with.

LM Zener Shunt Regulator Pinout, Features, Circuit & Datasheet

Ratio of the Change in Reference Voltage. Now let us consider a simple application circuit for the device as shown below: Life support devices or systems are devices or. So in the final result Vo will always be adjusted datasbeet float near the measured value by op-amp setup or LM Absolute Maximum Ratings Note 2.

Datasyeet for availability and specifications. Test Circuit for Curve A Above. Electrical specifications do not apply when operating the device.

A critical component is any component of a life. LM is a regulator IC featured with adjustable output voltage. C unless otherwise specified. Above this temperature, derate the TO at 6. The output voltage may be set at any level greater than 2. It is a 3-terminal shunt regulator with guaranteed temperature stability over the entire temperature range of operation.

Infrared or Convection 20 sec. The areas under the curves represent conditions that may cause the device to oscillate.

National Semiconductor

Internal Power Dissipation Notes 3, 4. Dynamic Impedance vs Frequency.

Minimum Cathode Current for Regulation. C, slope is positive. V Z from 10V to 36V.


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. Output Control of a Three. Also Vref is the voltage at the midpoint voltage divider network formed by the two resistors R2 and R3. The LM is a 3-terminal adjustable shunt regulator with. Deviation of Reference Input Voltage Over.

Also the current draw by op-amp and resistor network is neglected for easy explanation. 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 lm31 notice to change said circuitry and specifications. Adjustable Precision Zener Shunt Regulator.

Deviation of reference input voltage, V DEVis defined as the maximum variation of the reference input voltage over the full temperature range. In a similar way we can setup other application circuits. Must be electrically isolated from the. C, the SOT at 2.

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. Deviation of Reference Input Current over.