TL431ACDM

Product Overview

• Category: Integrated Circuit
• Use: Voltage Reference
• Characteristics: Adjustable Precision Shunt Regulator
• Package: SOIC-8
• Essence: Programmable Precision Reference
• Packaging/Quantity: Tape & Reel, 2500 pieces per reel

Specifications

• Reference Voltage Range: 2.495V to 36V
• Output Current: 1mA to 100mA
• Operating Temperature Range: -40°C to +85°C
• Line Regulation: 0.2% (typical)
• Load Regulation: 0.4% (typical)
• Temperature Stability: 50ppm/°C (typical)

Detailed Pin Configuration

The TL431ACDM is an integrated circuit with an SOIC-8 package. It has the following pin configuration:

1. Anode
2. Cathode
3. Reference
4. N/C (No Connection)
5. N/C (No Connection)
6. N/C (No Connection)
7. N/C (No Connection)
8. Cathode

Functional Features

• Programmable output voltage reference
• High precision and stability
• Low dynamic impedance
• Wide operating voltage range
• Low temperature coefficient
• Low output noise
• Short-circuit protection

Advantages and Disadvantages

Advantages

• Highly accurate voltage reference
• Easy to use and integrate into circuits
• Wide range of applications
• Stable performance over temperature and time
• Cost-effective solution for voltage regulation

Disadvantages

• Limited output current capability
• Requires external components for certain applications
• Sensitive to noise and fluctuations in input voltage

Working Principles

The TL431ACDM is a precision shunt regulator that provides a stable reference voltage. It operates by comparing the reference voltage at its internal reference pin with an external voltage divider network connected to the cathode and anode pins. By adjusting the resistors in the voltage divider, the output voltage can be set to a desired value within the specified range.

The TL431ACDM continuously monitors the voltage across the reference pin and regulates the current flowing through it to maintain a constant voltage. This makes it suitable for applications requiring precise voltage references, such as feedback control circuits, power supplies, and battery chargers.

Detailed Application Field Plans

The TL431ACDM is widely used in various electronic systems and applications, including:

1. Voltage regulators
2. Switching power supplies
3. Battery charging circuits
4. Audio amplifiers
5. Instrumentation and measurement equipment
6. Industrial control systems
7. Automotive electronics
8. LED lighting systems

Its adjustable precision reference voltage and stability make it suitable for applications that require accurate voltage regulation and control.

Detailed and Complete Alternative Models

• TL431BQDBZR: SOT-23 package, adjustable precision shunt regulator
• TLV431BQDBVR: SOT-23 package, low-voltage adjustable precision shunt regulator
• LM4040AIM3-2.5/NOPB: SOT-23 package, precision micropower shunt voltage reference
• REF3030AIDBZT: SOT-23 package, precision voltage reference with low temperature drift

These alternative models offer similar functionality and can be used as substitutes for the TL431ACDM in various applications.

In conclusion, the TL431ACDM is a versatile integrated circuit that provides a programmable precision voltage reference. Its wide range of applications, stable performance, and cost-effectiveness make it a popular choice among designers and engineers in the electronics industry.

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