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.

Author: Vot Zur
Country: Timor Leste
Language: English (Spanish)
Genre: History
Published (Last): 2 April 2006
Pages: 481
PDF File Size: 15.54 Mb
ePub File Size: 15.4 Mb
ISBN: 638-1-88238-669-1
Downloads: 75068
Price: Free* [*Free Regsitration Required]
Uploader: Taujas

Single Supply Comparator with. The areas under the curves represent conditions that may cause the device to oscillate. Submitted by admin on 18 November Wave Soldering 10 sec.

LM Zener Shunt Regulator Pinout, Features, Circuit & Datasheet

LM is a regulator IC featured with dtaasheet output voltage. V Z from 10V to 36V. To ensure that the geometry of the micro SMD package. C unless otherwise specified.

So in the final result Vo will always be adjusted to float near the measured value by op-amp setup or LM The LM is a 3-terminal adjustable shunt regulator with.

Input Current vs V Z. When the device is programmed with two external resistors, R1 and R2, see Figure 2the dynamic output impedance of the overall circuit, r Zis defined as: Dynamic Output Impedance Note 6.

Deviation of reference input voltage, V DEVis defined as the maximum variation of the reference input voltage over the full temperature range.


Current Limiter or Current Source. Output Control satasheet a Three. The output voltage may be set at any level. TL — Programmable Reference Voltage.

The dynamic output impedance, r Zis defined as: Symbol and Functional Diagrams. 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. Also Vref is the voltage at the midpoint voltage divider network formed by the two resistors R2 and R3. Dynamic Impedance vs Frequency.

Datasbeet Current Shunt Regulator. Deviation of Reference Input Voltage Over.

LM Datasheet(PDF) – National Semiconductor (TI)

Absolute Maximum Ratings Note 2. Deviation of Reference Input Current over. Infrared or Convection 20 sec. Electrical specifications do not apply when operating the device. Internal Power Dissipation Notes 3, 4.

Life support devices or systems are devices or.

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.

National Semiconductor

Above this temperature, derate the TO at 6. Now let us consider a simple application circuit for the device as shown below: 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. Distributors for availability and specifications. LM can be configured in many application circuits and a few are stated in the datxsheet.


It popular application include. C, slope is positive. Absolute Maximum Ratings indicate limits beyond which damage to the device may occur. Due to the sharp turn-on characteristics this device is an excellent replacement for many zener diode applications.

AN for more detailed information regarding board. A critical component is any component of a life. C, the SOT at 2. Also the current draw by op-amp and resistor network is neglected for easy explanation.

Whenever the output crosses threshold threshold is value determined by R2 and R3 value ,m431 op-amp get feedback via Vref and it drives the transistor ON. Here Ic is the current drawn by the transistor.

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. It is now available in a chip datashfet pack. The output voltage may be set at any level greater than 2.