TLC7703IDG4

Product Overview

Category: Integrated Circuits (ICs)

Use: The TLC7703IDG4 is a voltage supervisor and reset IC designed to monitor the power supply voltage of electronic systems. It ensures proper system initialization by generating a reset signal when the voltage falls below a specified threshold.

Characteristics: - Low-power consumption - Wide operating voltage range - Adjustable reset threshold - Precision voltage reference - Open-drain output - Small package size

Package: SOIC-8

Essence: The TLC7703IDG4 is an essential component in electronic systems that require reliable power supply monitoring and reset functionality.

Packaging/Quantity: The TLC7703IDG4 is typically sold in reels, with 2500 units per reel.

Specifications

• Supply Voltage Range: 1.8V to 6V
• Reset Threshold Voltage Range: 1.1V to 5V
• Operating Temperature Range: -40°C to +85°C
• Quiescent Current: 10µA (typical)
• Output Type: Open-drain
• Power-On Reset Delay Time: 200ms (typical)

Pin Configuration

The TLC7703IDG4 has 8 pins arranged as follows:

```

---

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

Functional Features

1. Voltage Monitoring: The TLC7703IDG4 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 system initialization.
3. Precision Reference: The integrated precision voltage reference ensures accurate monitoring and reliable reset functionality.
4. Open-Drain Output: The open-drain output allows for flexible interfacing with other components in the system.

Advantages and Disadvantages

Advantages: - Low-power consumption makes it suitable for battery-powered applications. - Wide operating voltage range enables compatibility with various systems. - Adjustable reset threshold provides flexibility in different voltage monitoring scenarios. - Small package size saves board space.

Disadvantages: - Lack of built-in hysteresis may result in multiple reset signals during voltage fluctuations. - Limited number of threshold inputs restricts monitoring of multiple voltage levels simultaneously.

Working Principles

The TLC7703IDG4 operates by comparing the power supply voltage with the user-defined threshold voltage. When the voltage drops below the threshold, the IC triggers the reset output, which can be used to initialize the system or trigger other actions. The precision voltage reference ensures accurate monitoring, while the open-drain output allows for easy integration with other components.

Application Field Plans

The TLC7703IDG4 finds applications in various electronic systems that require reliable power supply monitoring and reset functionality. Some potential application fields include: - Microcontrollers and microprocessors - Industrial control systems - Automotive electronics - Home automation systems - Medical devices

Alternative Models

1. TL7703AIDR: Similar voltage supervisor IC with a different package (SOIC-8).
2. TL7705AIDR: Voltage supervisor IC with additional features like watchdog timer and adjustable power-on reset delay.
3. MAX823LEUK+: Voltage monitor IC with adjustable threshold and push-pull output.

These alternative models offer similar functionality and can be considered as substitutes for the TLC7703IDG4 in specific applications.

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