LM431CCM3

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LM431CCM3

+物料清單

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

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規格

屬性 價值
Part Status Obsolete
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 0°C ~ 70°C (TA)
Mounting Type Surface Mount
Package / Case TO-236-3, SC-59, SOT-23-3
Supplier Device Package SOT-23-3
Base Product Number LM431
Current - Cathode 1 mA
Voltage - Output (Max) 37 V

概述

Description

The LM431CCM3 is a programmable precision shunt voltage reference designed for various applications requiring accurate voltage regulation. It features a three-terminal configuration, allowing it to operate as a voltage reference and an adjustable regulator. The output voltage can be set to any value between 2.5V and 36V using external resistors, making it versatile for different circuit requirements.
Key specifications include a low output impedance, high accuracy, and temperature stability, ensuring reliable performance in demanding environments. The LM431 is often used in power supplies, battery chargers, and as a reference for analog-to-digital converters.
Additionally, it has low thermal drift and offers a wide operating temperature range, making it suitable for automotive and industrial applications. The device is commonly available in surface-mount packages like the TO-220 or SOT-23, facilitating integration into compact designs. Overall, the LM431CCM3 is a robust choice for precision voltage regulation in electronic circuits.

Equivalent

The LM431CCM3 is a programmable shunt voltage reference, and its equivalents include the TL431, LT1004, and TLV431. Other alternatives may include the MCP1501 and AD580. When selecting a replacement, consider specifications such as reference voltage, temperature coefficient, and package type to ensure compatibility. Always consult datasheets for detailed comparisons.

Features

The LM431CCM3 is a precision programmable shunt voltage reference used in various electronic applications. Key features include:
1. Output Voltage: Adjustable output voltage from 1.24V to 37V, allowing for versatility in circuit design.
2. Accuracy: High initial accuracy of ±1% at 25°C, ensuring reliable performance.
3. Temperature Coefficient: Low temperature coefficient of 50 ppm/°C, which enhances stability across varying temperatures.
4. Output Impedance: Low output impedance of 0.2Ω, providing better load regulation.
5. Dynamic Performance: Fast response time, suitable for high-speed applications.
6. Operating Current Range: Functions with a cathode current range from 1 mA to 100 mA, making it suitable for various load conditions.
7. Package Type: Available in TO-92 and surface mount (SOT-23) packages, facilitating easy integration into circuits.
8. Applications: Commonly used in power supplies, voltage regulation, and reference applications in both consumer and industrial electronics.
These features make the LM431CCM3 a versatile choice for designers needing an adjustable voltage reference.

Pinout

The LM431CCM3 is a programmable shunt voltage reference with a pin count of 3.
### Pin Functions:
1. Reference (REF): This pin serves as the reference voltage output, typically set at 1.24V. It can be connected to a resistor divider to achieve a desired output voltage.

2. Anode (A): The anode is connected to the load or power supply’s return path, allowing the device to shunt excess voltage.
3. Cathode (K): The cathode is the output pin where regulated voltage is provided to the load. It is connected to the positive supply voltage.
The LM431 is widely used in applications requiring precision voltage regulation, such as power supply circuits and voltage reference tasks.

Manufacturer

The LM431CCM3 is manufactured by Texas Instruments (TI), a leading global semiconductor company. Founded in 1930, Texas Instruments designs and produces a wide range of electronic components, including analog, embedded processing, and digital signal processing solutions. The company is well-known for its innovations in technology and is a major player in the electronics industry, serving various markets such as automotive, industrial, communications, and consumer electronics.
The LM431CCM3 is a programmable shunt voltage reference, widely used in power management and voltage regulation applications, enabling precision voltage control in circuits. Texas Instruments emphasizes quality and reliability in its products, making it a preferred choice for engineers and designers seeking robust electronic components.

Application

The LM431CCM3 is a programmable shunt voltage reference used in various applications, including:
1. Power Supply Regulation: As a voltage reference in power converters and linear regulators.
2. Feedback Control: For maintaining stable output voltage in switching power supplies.
3. Battery Management: In systems requiring voltage monitoring and regulation.
4. Instrumentation: In precision measurement systems for reference voltage generation.
5. Consumer Electronics: In devices needing voltage regulation for optimal performance.
6. Automotive Applications: Used for various sensor and control circuits requiring stable reference voltages.
Its versatility and precision make it suitable for many electronic designs.

Package

The LM431CCM3 is packaged in a TO-92 type package. This is a small, cylindrical, plastic package commonly used for integrated circuits, allowing for easy mounting and handling.

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