TL431QDBZR,215

Basic Information Overview

• Category: Integrated Circuit (IC)
• Use: Voltage Reference
• Characteristics: Adjustable Precision Shunt Regulator
• Package: SOT-23
• Essence: Programmable Precision Reference
• Packaging/Quantity: Tape and Reel, 3000 pieces per reel

Specifications

• Reference Voltage Range: 2.495V to 36V
• Output Current: 100mA
• Temperature Coefficient: ±50ppm/°C
• Operating Temperature Range: -40°C to +85°C
• Line Regulation: 0.2% typical
• Load Regulation: 0.4% typical
• Dropout Voltage: 1.5V typical at 10mA load current

Detailed Pin Configuration

The TL431QDBZR,215 has three pins: 1. Anode (A): Connected to the positive terminal of the power supply. 2. Cathode (K): Connected to the load or ground. 3. Reference (R): Provides the regulated output voltage.

Functional Features

• Programmable Output Voltage: The TL431QDBZR,215 can be programmed to provide a precise output voltage within the specified range.
• High Precision: It offers excellent voltage reference accuracy and stability over temperature and load variations.
• Low Dropout Voltage: The low dropout voltage ensures efficient operation even with small input-output voltage differentials.
• Wide Operating Temperature Range: It can operate in extreme temperature conditions, making it suitable for various applications.

Advantages and Disadvantages

Advantages

• Precise and stable voltage reference
• Adjustable output voltage
• Low dropout voltage
• Wide operating temperature range
• Small package size

Disadvantages

• Limited output current capacity (100mA)
• Requires external resistors for programming the output voltage

Working Principles

The TL431QDBZR,215 is a three-terminal adjustable shunt regulator. It operates by comparing the reference voltage at the Reference (R) pin with an external voltage divider network connected to the Anode (A) and Cathode (K) pins. By adjusting the resistors in the voltage divider, the output voltage can be precisely set within the specified range.

Detailed Application Field Plans

The TL431QDBZR,215 finds applications in various fields, including: 1. Power Supply Regulation: It can be used as a voltage reference for regulating power supplies in electronic devices. 2. Battery Charging: It is suitable for controlling the charging voltage of batteries in portable devices. 3. Voltage Monitoring: It can be employed for monitoring and maintaining a stable voltage level in circuits. 4. Precision Instrumentation: It is useful in precision measurement and control systems that require accurate voltage references.

Detailed and Complete Alternative Models

Some alternative models to TL431QDBZR,215 include: - TL431AQDBZR,215 - TL431BQDBZR,215 - TL431CQDBZR,215

These models offer similar functionality and characteristics but may have slight differences in specifications or package options.

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