TL7702BID

Product Overview

• Category: Integrated Circuit (IC)
• Use: Voltage Supervisor
• Characteristics:
  • Monitors power supply voltage levels
  • Generates reset signals when voltage falls below a specified threshold
  • Prevents erratic behavior of microcontrollers and other digital circuits during power-up and power-down sequences
• Package: SOIC-8 (Small Outline Integrated Circuit)
• Essence: Provides reliable power supply monitoring and reset generation for electronic systems
• Packaging/Quantity: Available in reels of 2500 units

Specifications

• Supply Voltage Range: 2.7V to 18V
• Threshold Voltage Options: 4.55V, 4.65V, 4.75V, 4.85V, 4.95V, 5.05V, 5.15V, 5.25V
• Reset Timeout Period: 200ms (typical)
• Operating Temperature Range: -40°C to +85°C
• Output Type: Active Low (RESET pin goes low when voltage falls below threshold)

Pin Configuration

The TL7702BID IC has the following pin configuration:

1. VCC: Supply Voltage Input
2. GND: Ground Reference
3. RESET: Reset Output (Active Low)
4. THRESHOLD: Threshold Voltage Selection Input
5. MR: Manual Reset Input
6. GND: Ground Reference
7. GND: Ground Reference
8. VCC: Supply Voltage Input

Functional Features

• Monitors the power supply voltage continuously
• Generates a reset signal when the voltage falls below the selected threshold
• Provides a manual reset option through the MR pin
• Offers a wide range of threshold voltage options for flexibility
• Ensures reliable system startup and shutdown sequences
• Low quiescent current consumption for power efficiency

Advantages

• Prevents erratic behavior of microcontrollers and digital circuits during power transitions
• Enhances system reliability by ensuring proper voltage levels
• Easy to integrate into existing electronic systems
• Wide operating voltage range allows compatibility with various power supply configurations
• Manual reset option provides additional control over system operation

Disadvantages

• Limited threshold voltage options may not cater to all specific requirements
• Active low reset output may require additional circuitry for certain applications
• Not suitable for high-voltage applications above 18V

Working Principles

The TL7702BID operates by continuously monitoring the power supply voltage using an internal voltage reference. When the voltage falls below the selected threshold, the IC generates a reset signal on the RESET pin, indicating a power failure or unstable voltage condition. This reset signal can be used to trigger a system reset or initiate appropriate actions to ensure a controlled restart.

Application Field Plans

The TL7702BID is commonly used in various electronic systems where reliable power supply monitoring and reset generation are critical. Some application fields include:

1. Microcontroller-based systems
2. Industrial automation equipment
3. Automotive electronics
4. Medical devices
5. Power management systems
6. Communication equipment

Alternative Models

• TL7700BID: Similar functionality but with a different package (PDIP-8)
• TL7705BID: Higher threshold voltage options (up to 5.35V)
• TL7712AID: Dual voltage supervisor with adjustable threshold voltage

Note: Please refer to the manufacturer's datasheet for complete specifications and alternative models.

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