TL4051B12QDBZT

Product Overview

• Category: Integrated Circuit (IC)
• Use: Voltage Reference
• Characteristics: Low Dropout, Precision, Micropower
• Package: SOT-23-3
• Essence: TL4051B12QDBZT is a voltage reference IC that provides a stable and precise output voltage of 1.2V.
• Packaging/Quantity: Available in tape and reel packaging with 3000 units per reel.

Specifications

• Output Voltage: 1.2V
• Initial Accuracy: ±0.5%
• Temperature Coefficient: 50ppm/°C
• Quiescent Current: 45µA
• Dropout Voltage: 200mV
• Operating Temperature Range: -40°C to +125°C

Pin Configuration

The TL4051B12QDBZT has three pins arranged as follows:

```

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| | --| VDD OUT |-- --| GND |-- |___________| ```

• VDD: Power supply input pin.
• OUT: Output voltage pin.
• GND: Ground pin.

Functional Features

• Provides a stable and precise output voltage of 1.2V.
• Low dropout voltage allows for efficient operation even with low input voltages.
• Excellent initial accuracy and temperature coefficient ensure reliable performance over a wide range of operating conditions.
• Low quiescent current makes it suitable for battery-powered applications.
• SOT-23-3 package offers compact size and easy integration into various circuit designs.

Advantages and Disadvantages

Advantages: - Stable and precise output voltage. - Low dropout voltage. - Excellent initial accuracy and temperature coefficient. - Low quiescent current. - Compact package size.

Disadvantages: - Limited output voltage options (only 1.2V).

Working Principles

The TL4051B12QDBZT utilizes a bandgap reference circuit to generate a stable and precise output voltage. It compares the reference voltage with an internal feedback voltage, adjusting the output voltage accordingly. The low dropout voltage ensures efficient operation even when the input voltage is close to the desired output voltage.

Detailed Application Field Plans

The TL4051B12QDBZT is commonly used in various applications that require a stable and precise 1.2V reference voltage. Some of the typical application fields include:

1. Battery-powered devices: Used as a voltage reference for battery monitoring circuits, ensuring accurate measurement of battery levels.
2. Analog-to-Digital Converters (ADCs): Provides a stable reference voltage for accurate conversion of analog signals.
3. Voltage regulators: Used as a reference voltage for regulating other voltages within a system.
4. Sensor circuits: Provides a stable reference voltage for sensor calibration and accurate measurements.

Detailed and Complete Alternative Models

1. TL431: Adjustable precision shunt regulator with similar characteristics but allows for adjustable output voltage.
2. LM4040: Precision micropower shunt voltage reference available in various output voltage options.
3. REF5025: Precision voltage reference with low temperature coefficient and high accuracy.

These alternative models offer different features and specifications, allowing users to choose the most suitable option for their specific requirements.

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