TLC7701QPWREP

Product Overview

• Category: Integrated Circuit (IC)
• Use: Voltage Supervisor
• Characteristics: Low-power, Precision, Programmable Delay
• Package: TSSOP-8
• Essence: Monolithic CMOS Circuit
• Packaging/Quantity: Tape and Reel, 2500 units per reel

Specifications

• Supply Voltage Range: 2.7V to 18V
• Threshold Voltage Options: 1.2V, 1.6V, 2.1V, 2.5V, 3.0V, 3.3V, 4.0V, 4.5V
• Programmable Delay Time Range: 1ms to 10s
• Operating Temperature Range: -40°C to +125°C
• Output Type: Active-Low, Open Drain
• Quiescent Current: 20µA (typical)

Detailed Pin Configuration

The TLC7701QPWREP has a TSSOP-8 package with the following pin configuration:

1. GND: Ground
2. VDD: Supply Voltage
3. RESET: Active-Low Reset Output
4. MR: Manual Reset Input
5. TH: Threshold Voltage Selection Input
6. CT: Capacitor Connection for Delay Time Programming
7. OUT: Output
8. NC: No Connect

Functional Features

• Precision voltage monitoring and reset generation
• Programmable delay time for reset assertion
• Wide supply voltage range for versatile applications
• Low quiescent current for power efficiency
• Open-drain output for flexibility in interfacing with other devices
• Manual reset input for immediate system reset

Advantages and Disadvantages

Advantages: - High precision in voltage monitoring - Programmable delay time allows customization - Wide supply voltage range accommodates various systems - Low quiescent current for power-sensitive applications - Flexible open-drain output for compatibility

Disadvantages: - Limited threshold voltage options - TSSOP package may require careful handling during assembly

Working Principles

The TLC7701QPWREP is a voltage supervisor IC that monitors the supply voltage and generates a reset signal when it falls below a certain threshold. The threshold voltage can be programmed using the TH pin, allowing flexibility in system design. The delay time for the reset assertion can also be programmed using an external capacitor connected to the CT pin.

When the supply voltage drops below the programmed threshold, the RESET pin goes low, indicating a reset condition. The manual reset input (MR) can be used to force an immediate reset regardless of the monitored voltage level.

Detailed Application Field Plans

The TLC7701QPWREP finds applications in various fields, including:

1. Automotive: Voltage monitoring in automotive electronics, ensuring proper operation and preventing damage due to low voltage conditions.
2. Industrial Control Systems: Reset generation in industrial control systems, providing reliable startup and protection against voltage fluctuations.
3. Power Management: Voltage supervision in power management circuits, enabling safe shutdown or restart during power loss or recovery.
4. Consumer Electronics: Reset circuitry in consumer electronic devices, maintaining stable operation and protecting sensitive components.

Detailed and Complete Alternative Models

1. TL7700CP: Similar voltage supervisor IC with fixed threshold voltage options and adjustable delay time.
2. MAX809: Voltage supervisor IC with fixed threshold voltage options and integrated watchdog timer.
3. ADM6315: Precision voltage monitor with adjustable threshold voltage and push-pull output.

These alternative models offer similar functionality and can be considered based on specific application requirements.

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