TLC7701QPWR

Basic Information Overview

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

Specifications

• Supply Voltage Range: 2.7V to 18V
• Operating Temperature Range: -40°C to +125°C
• Quiescent Current: 10µA (typical)
• Threshold Voltage Options: 2.5V, 3V, 3.3V, 5V
• Output Type: Active-Low Push-Pull
• Power-On Reset Delay Time: 200ms (typical)

Detailed 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
6. TR: Watchdog Timer Reset Output
7. CT: Capacitor Connection for Watchdog Timer
8. OUT: Power-On Reset Output

Functional Features

• Voltage Monitoring: TLC7701QPWR continuously monitors the supply voltage and generates a reset signal when it falls below the threshold voltage.
• Manual Reset: The MR pin allows for manual resetting of the device by pulling it low.
• Watchdog Timer: The TR pin provides a reset output if the watchdog timer is not periodically triggered.
• Power-On Reset: The OUT pin generates a reset signal during power-up until the supply voltage stabilizes.

Advantages and Disadvantages

Advantages

• Low-power consumption makes it suitable for battery-powered applications.
• Wide supply voltage range allows for versatile use in various systems.
• Precision voltage monitoring ensures reliable operation.
• Small package size (TSSOP-8) enables space-saving designs.

Disadvantages

• Limited threshold voltage options may not cater to all voltage monitoring requirements.
• Lack of built-in hysteresis may result in potential noise-related issues.

Working Principles

TLC7701QPWR operates by comparing the supply voltage with the selected threshold voltage. When the supply voltage drops below the threshold, the reset output is activated. The device also incorporates a watchdog timer that requires periodic triggering to prevent false resets. Additionally, the power-on reset feature ensures a reliable start-up sequence.

Detailed Application Field Plans

• Automotive Electronics: TLC7701QPWR can be used in automotive systems to monitor critical voltages and ensure proper functioning of various components.
• Industrial Control Systems: It finds applications in industrial control systems where voltage supervision is crucial for safe and reliable operation.
• Consumer Electronics: The IC can be employed in consumer electronic devices to provide voltage monitoring and reset generation capabilities.

Detailed and Complete Alternative Models

• TL7700IP: Similar voltage supervisor IC with active-high reset output.
• TL7702AIP: Dual-supply voltage supervisor with two independent reset outputs.
• TL7705ACP: Voltage supervisor with adjustable threshold voltage and watchdog timer functionality.

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