TLC7703QD

Product Overview

Category

TLC7703QD belongs to the category of integrated circuits (ICs).

Use

This product is commonly used in electronic devices for voltage monitoring and reset functions.

Characteristics

• Voltage monitoring: TLC7703QD provides accurate monitoring of supply voltages.
• Reset function: It generates a reset signal when the monitored voltage falls below a specified threshold.
• Low power consumption: The IC operates with low power consumption, making it suitable for battery-powered applications.

Package

TLC7703QD is available in a small outline package (SOIC) with 8 pins.

Essence

The essence of TLC7703QD lies in its ability to ensure reliable operation of electronic systems by monitoring voltage levels and providing reset signals when necessary.

Packaging/Quantity

This product is typically packaged in reels or tubes, with a quantity of 2500 units per reel/tube.

Specifications

• Supply voltage range: 2.7V to 18V
• Threshold voltage accuracy: ±1.5%
• Operating temperature range: -40°C to +85°C
• Quiescent current: 25µA (typical)

Detailed Pin Configuration

TLC7703QD features the following pin configuration:

1. VDD: Supply voltage input
2. GND: Ground reference
3. MR: Manual reset input
4. RESET: Reset output
5. TH: Threshold voltage input
6. TRIP: Trip point output
7. CT: Capacitor connection terminal
8. CT: Capacitor connection terminal

Functional Features

1. Voltage Monitoring: TLC7703QD continuously monitors the supply voltage to ensure it remains within the desired range.
2. Reset Generation: When the monitored voltage falls below the threshold voltage, the IC generates a reset signal to initiate system reset.
3. Manual Reset: The MR pin allows for manual reset, overriding the automatic reset function.
4. Trip Point Output: The TRIP pin provides an output signal indicating when the monitored voltage reaches the threshold level.

Advantages and Disadvantages

Advantages

• Accurate voltage monitoring ensures reliable system operation.
• Low power consumption makes it suitable for battery-powered applications.
• Small package size enables space-efficient designs.

Disadvantages

• Limited threshold voltage accuracy compared to some alternative models.
• May require additional external components for certain applications.

Working Principles

TLC7703QD operates by comparing the supply voltage with a preset threshold voltage. When the supply voltage falls below the threshold, the IC generates a reset signal. This signal remains active until the supply voltage rises above the threshold or a manual reset is triggered.

Detailed Application Field Plans

TLC7703QD finds application in various electronic systems that require voltage monitoring and reset functionality. Some specific application fields include:

1. Microcontroller-based systems: Ensures proper system initialization and prevents erratic behavior during power fluctuations.
2. Industrial automation: Monitors power supply integrity in control systems to prevent data loss or equipment damage.
3. Automotive electronics: Provides reliable reset signals to ensure safe operation of critical systems such as engine control units.

Detailed and Complete Alternative Models

1. TLC7701QD: Similar to TLC7703QD but with a single threshold voltage input.
2. MAX823: Offers higher threshold voltage accuracy and additional features like watchdog timer.
3. ADM6315: Provides adjustable threshold voltage and offers more precise monitoring capabilities.

Note: This is not an exhaustive list, and there are several other alternative models available in the market.

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