LM431CIM3

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LM431CIM3

IC VREF SHUNT -0.6/+0.4% SOT23-3

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Spezifikationen

Part Status Obsolete
Base Product Number LM431
Reference Type Shunt
Output Type Adjustable
Voltage - Output (Min/Fixed) 2.5V
Current - Output 100 mA
Tolerance -0.6%, +0.4%
Temperature Coefficient 50ppm/°C Typical
Operating Temperature -40°C ~ 85°C (TA)
Mounting Type Surface Mount
Package TO-236-3, SC-59, SOT-23-3
Supplier Device Package SOT-23-3
Packaging Cut Tape (CT), Tape & Reel (TR)
Voltage - Output (Max) 37 V
Current - Cathode 1 mA

Übersicht

Description

The LM431CIM3 is a programmable shunt voltage reference that offers high accuracy and low temperature coefficient. It is commonly used in electronic circuits to provide a stable reference voltage for various applications, including power supplies and voltage regulators. The device operates with a voltage output range of 1.24V to 37V, making it versatile for different circuit designs.
The LM431 features three terminals: the reference pin, the anode, and the cathode. By connecting a resistor network to the reference pin, users can set the desired output voltage. It has a temperature stability of 0.1% and a low dynamic impedance, which helps maintain a consistent output under varying load conditions.
The LM431CIM3 is available in a compact package, making it suitable for space-constrained applications. Its ease of use, reliability, and performance make it an ideal choice for designers seeking an efficient voltage reference solution in both consumer and industrial electronics.

Features

The LM431CIM3 is a precision voltage reference and adjustable shunt regulator. Key features include:
1. Programmable Output Voltage: Adjustable from 1.24V to 37V, allowing for flexibility in various applications.
2. High Accuracy: Typically ±1% output voltage tolerance, ensuring precise voltage regulation.
3. Wide Operating Current Range: Functions with a cathode current from 1 mA to 100 mA, making it suitable for various load conditions.
4. Low Temperature Coefficient: Temperature stability of 50 ppm/°C, ensuring minimal drift with temperature changes.
5. Fast Response Time: Quick response to load changes, enhancing system stability.
6. Built-in Reference: Contains a temperature-compensated bandgap reference, providing stable operation across a wide temperature range.
7. Versatile Applications: Commonly used in power supplies, voltage regulation, and as a reference in ADCs and DACs.
The LM431CIM3 is packaged in a compact surface-mount design (SOT-23), making it suitable for space-constrained applications.

Package

The LM431CIM3 is typically available in a SOT-23 package type. This compact, surface-mount package is commonly used for low-power applications and provides efficient thermal performance.

Pinout

The LM431CIM3 is a programmable shunt voltage reference with a pin count of 3. The functions of the pins are as follows:
1. Ref (Reference): This pin provides a stable reference voltage (typically 1.24V) that can be used in feedback circuits.
2. Cathode: This pin is connected to the load and provides the output voltage of the device. It works as the output for the voltage reference.
3. Anode: This pin connects to ground or a negative voltage and is used for shunt regulation.
The LM431CIM3 is commonly used in power supply circuits and various electronic applications where precise voltage regulation is needed.

Manufacturer

The LM431CIM3 is manufactured by Texas Instruments (TI), a leading global semiconductor company. Texas Instruments designs and produces a wide range of electronic components, including analog and embedded processing devices. Founded in 1930, TI is known for its innovation in technology and its contributions to various industries, including automotive, consumer electronics, industrial automation, and communications. The LM431 is a programmable shunt voltage reference, commonly used in power management systems and precision voltage regulation applications. TI is recognized for its commitment to quality, reliability, and customer support in the semiconductor market.

Application

The LM431CIM3 is a programmable shunt voltage reference commonly used in power supply circuits, voltage regulation, and analog-to-digital converters. It serves applications in precision reference voltage sources, adjustable power supplies, battery management systems, and as a feedback element in switching regulators. Its versatility allows it to provide accurate voltage references in consumer electronics, industrial equipment, and telecommunications systems.

Equivalent

Equivalent products to the LM431CIM3 voltage reference IC include the TL431, LT431, and the MCP1407. These devices provide similar functionality with adjustable output voltage and are commonly used in voltage regulation applications. Always check the specific datasheets for precise electrical characteristics and pin configurations to ensure compatibility.

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