TC1232CPA

Product Overview

• Category: Integrated Circuit (IC)
• Use: Voltage Supervisor
• Characteristics: Precision monitoring, low power consumption
• Package: 8-pin PDIP (Plastic Dual In-line Package)
• Essence: Ensures reliable system reset during power-up and power-down
• Packaging/Quantity: Tube packaging, 25 pieces per tube

Specifications

• Supply Voltage Range: 2.5V to 6.0V
• Reset Threshold Voltage: 4.55V (typical)
• Reset Timeout Period: 200ms (typical)
• Quiescent Current: 10µA (typical)
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

1. GND: Ground connection
2. RESET: Active-low reset output
3. VCC: Positive supply voltage
4. MR: Manual reset input
5. TH: Threshold voltage adjust pin
6. TR: Reset timeout adjust pin
7. CT: Capacitor connection for reset timeout
8. VBAT: Battery backup input

Functional Features

• Precision Monitoring: The TC1232CPA accurately monitors the supply voltage and provides a reset signal when it falls below the specified threshold.
• Low Power Consumption: With a quiescent current of only 10µA, this IC minimizes power consumption, making it suitable for battery-powered applications.
• Manual Reset Input: The MR pin allows for manual resetting of the system, overriding the automatic reset function.
• Adjustable Threshold and Timeout: The TH and TR pins enable fine-tuning of the threshold voltage and reset timeout period, providing flexibility in different applications.

Advantages and Disadvantages

Advantages: - Reliable System Reset: Ensures proper system initialization during power-up and power-down scenarios. - Low Power Consumption: Ideal for energy-efficient designs. - Adjustable Parameters: Allows customization for specific application requirements.

Disadvantages: - Limited Supply Voltage Range: Operates within a range of 2.5V to 6.0V, which may not be suitable for all applications. - Single Output: Provides only an active-low reset output, limiting its use in certain complex systems.

Working Principles

The TC1232CPA monitors the supply voltage using an internal voltage reference and comparator. When the voltage falls below the threshold level, the reset output is activated, indicating that the system should be reset. The reset signal remains active until the voltage rises above the threshold or the timeout period elapses. The timeout period can be adjusted using an external capacitor connected to the CT pin.

Detailed Application Field Plans

1. Embedded Systems: The TC1232CPA ensures reliable system initialization in microcontroller-based embedded systems, preventing erratic behavior during power transitions.
2. Industrial Control: It finds application in industrial control systems where stable operation is crucial, protecting against voltage fluctuations and ensuring proper system reset.
3. Automotive Electronics: Used in automotive electronics to monitor the vehicle's electrical system, providing a reset signal if the voltage drops below a safe level.
4. Medical Devices: Ensures the proper functioning of critical medical devices by monitoring the power supply and initiating a reset if necessary.

Detailed and Complete Alternative Models

1. MAX1232: Similar voltage supervisor IC with adjustable threshold and timeout features.
2. ADM6315: Low-power voltage monitor with a wide supply voltage range.
3. MCP809: Microcontroller supervisory circuit with a manual reset input and adjustable timeout period.

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