TLC2932AIPWR

Product Overview

Category: Integrated Circuit (IC)

Use: The TLC2932AIPWR is a voltage supervisor IC that provides power supply monitoring and reset generation functions for microcontrollers, DSPs, and other digital systems. It ensures proper system operation by monitoring the voltage levels and generating a reset signal when necessary.

Characteristics: - Voltage supervisor with adjustable threshold - Low quiescent current consumption - Wide operating voltage range - Small package size - High accuracy and reliability

Package: The TLC2932AIPWR is available in a small surface mount package known as TSSOP-8 (Thin Shrink Small Outline Package). This package offers excellent thermal performance and allows for easy integration into compact electronic designs.

Essence: The essence of the TLC2932AIPWR lies in its ability to monitor the power supply voltage and generate a reset signal to ensure the proper functioning of digital systems.

Packaging/Quantity: The TLC2932AIPWR is typically sold in reels containing 2500 units per reel.

Specifications

• Supply Voltage Range: 1.6V to 18V
• Adjustable Threshold Voltage Range: 0.4V to 5V
• Quiescent Current: 10µA (typical)
• Operating Temperature Range: -40°C to +85°C
• Output Type: Active Low
• Reset Time Delay: 200ms (typical)

Detailed Pin Configuration

The TLC2932AIPWR has a total of 8 pins arranged as follows:

```

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| | --| VCC GND |-- Pin 1: Ground (GND) --| RST OUT |-- Pin 2: Reset Output (Active Low) --| TH MR |-- Pin 3: Threshold Adjust --| VCC GND |-- Pin 4: Ground (GND) --| RST OUT |-- Pin 5: Reset Output (Active Low) --| TH MR |-- Pin 6: Threshold Adjust --| VCC GND |-- Pin 7: Ground (GND) --| RST OUT |-- Pin 8: Reset Output (Active Low) |___________| ```

Functional Features

1. Voltage Monitoring: The TLC2932AIPWR continuously monitors the power supply voltage and compares it with the user-adjustable threshold voltage.
2. Reset Generation: When the monitored voltage falls below the threshold, the IC generates a reset signal to initiate a system reset.
3. Adjustable Threshold: The threshold voltage can be adjusted using an external resistor connected to the TH pin, allowing flexibility in setting the desired voltage level for triggering the reset.
4. Low Quiescent Current: The IC consumes very low quiescent current, making it suitable for battery-powered applications.
5. Wide Operating Voltage Range: The TLC2932AIPWR operates over a wide voltage range, enabling its use in various electronic systems.

Advantages and Disadvantages

Advantages: - Adjustable threshold voltage provides flexibility in system design. - Low quiescent current consumption prolongs battery life. - Wide operating voltage range allows for versatile applications. - Small package size facilitates integration into compact designs. - High accuracy and reliability ensure proper system operation.

Disadvantages: - Lack of built-in hysteresis may lead to potential noise-related issues in certain applications. - Limited number of available pins restricts the number of external components that can be connected directly to the IC.

Working Principles

The TLC2932AIPWR works by continuously monitoring the power supply voltage through the TH pin. The user can adjust the threshold voltage using an external resistor connected to the TH pin. When the monitored voltage falls below the threshold, the IC generates a reset signal on the OUT pin, initiating a system reset. The active-low reset output remains low until the power supply voltage rises above the threshold again.

Detailed Application Field Plans

The TLC2932AIPWR finds applications in various fields where reliable power supply monitoring and reset generation are crucial. Some of the potential application areas include:

1. Microcontrollers: The IC ensures proper operation of microcontrollers by providing voltage supervision and reset functionality.
2. Digital Signal Processors (DSPs): DSPs require accurate power supply monitoring for reliable performance, which is achieved using the TLC2932AIPWR.
3. Embedded Systems: The IC plays a vital role in embedded systems, ensuring stable operation by monitoring the power supply voltage.
4. Automotive Electronics: Automotive electronic systems benefit from the voltage supervision capabilities of the TLC2932AIPWR to maintain system integrity.
5. Industrial Control Systems: The IC is suitable for industrial control systems that require precise power supply monitoring and reset generation.

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