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TL7702BCDRG4
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TL7702BCDRG4

Product Overview

Category: Integrated Circuit (IC)

Use: Voltage Supervisor

Characteristics: - Monitors the power supply voltage and generates a reset signal when the voltage falls below a specified threshold - Ensures reliable operation of microcontrollers, microprocessors, and other digital devices by preventing them from operating in an undefined state - Provides a stable and accurate reset signal during power-up, power-down, and brownout conditions

Package: SOIC-8

Essence: The TL7702BCDRG4 is a voltage supervisor IC that plays a crucial role in ensuring the proper functioning of digital devices by monitoring the power supply voltage and generating a reset signal when necessary.

Packaging/Quantity: The TL7702BCDRG4 is available in a standard SOIC-8 package. It is typically sold in reels or tubes containing multiple units.

Specifications

  • Supply Voltage Range: 2.7V to 18V
  • Reset Threshold Voltage Options: 4.55V, 4.65V, 4.75V, 4.85V, 4.95V, 5.05V, 5.15V, 5.25V
  • Reset Timeout Period: 200ms (typical)
  • Quiescent Current: 40µA (typical)
  • Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The TL7702BCDRG4 has the following pin configuration:

  1. GND (Ground): Connected to the ground reference of the system.
  2. VCC (Supply Voltage): Connected to the positive supply voltage.
  3. MR (Manual Reset): An active-low input used to force a reset condition.
  4. RESET (Reset Output): Active-low output that goes low when the monitored voltage falls below the threshold.
  5. VDD (Voltage Detection): Connected to the voltage being monitored.
  6. GND (Ground): Connected to the ground reference of the system.
  7. VCC (Supply Voltage): Connected to the positive supply voltage.
  8. RESET (Reset Output): Active-low output that goes low when the monitored voltage falls below the threshold.

Functional Features

  • Monitors the power supply voltage continuously
  • Generates a reset signal when the voltage falls below the specified threshold
  • Provides a stable and accurate reset signal during power-up, power-down, and brownout conditions
  • Offers manual reset capability through the MR pin
  • Low quiescent current consumption for power efficiency

Advantages and Disadvantages

Advantages: - Ensures reliable operation of digital devices by preventing undefined states - Provides protection against voltage fluctuations and brownout conditions - Easy integration into existing circuit designs - Low power consumption

Disadvantages: - Limited reset threshold voltage options - May require additional external components for specific applications

Working Principles

The TL7702BCDRG4 operates by comparing the monitored voltage (VDD) with a preset threshold voltage. When the monitored voltage falls below the threshold, the reset output (RESET) is activated, indicating a reset condition. The reset signal remains active until the monitored voltage rises above the threshold and stabilizes.

Detailed Application Field Plans

The TL7702BCDRG4 finds applications in various fields where reliable voltage monitoring and reset functionality are essential. Some common application areas include:

  1. Microcontroller Systems: Ensures proper initialization and reliable operation of microcontrollers by providing a stable reset signal during power-up and brownout conditions.
  2. Industrial Control Systems: Protects sensitive digital components from voltage fluctuations and ensures safe operation of industrial control systems.
  3. Automotive Electronics: Enhances the reliability of automotive electronic systems by preventing undefined states and providing a reset signal during power fluctuations.
  4. Power Supply Units: Monitors the output voltage of power supply units and generates a reset signal in case of voltage drops, ensuring the stability of connected devices.

Detailed and Complete Alternative Models

  1. TL7700CP: Similar voltage supervisor IC with a different pin configuration (DIP-8 package).
  2. TL7705ACP: Voltage supervisor IC with adjustable reset threshold voltage options (DIP-8 package).
  3. TL7712ACDRG4: Dual voltage supervisor IC with independent reset outputs (SOIC-8 package).

These alternative models offer similar functionality to the TL7702BCDRG4 but may have different package options or additional features.

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Lista 10 Vanliga frågor och svar relaterade till tillämpningen av TL7702BCDRG4 i tekniska lösningar

Sure! Here are 10 common questions and answers related to the application of TL7702BCDRG4 in technical solutions:

  1. Q: What is TL7702BCDRG4? A: TL7702BCDRG4 is a voltage supervisor and reset IC that monitors the power supply voltage and generates a reset signal when the voltage falls below a specified threshold.

  2. Q: What are the typical applications of TL7702BCDRG4? A: TL7702BCDRG4 is commonly used in microcontroller-based systems, embedded systems, industrial control systems, and any other application where reliable power supply monitoring and reset generation is required.

  3. Q: How does TL7702BCDRG4 work? A: TL7702BCDRG4 compares the monitored voltage with a reference voltage and generates a reset signal when the monitored voltage falls below the reference voltage. It also includes built-in hysteresis to prevent false triggering.

  4. Q: What is the operating voltage range of TL7702BCDRG4? A: TL7702BCDRG4 operates within a voltage range of 2.7V to 18V.

  5. Q: Can TL7702BCDRG4 be used with both positive and negative voltage supplies? A: No, TL7702BCDRG4 is designed for use with positive voltage supplies only.

  6. Q: What is the maximum reset timeout period of TL7702BCDRG4? A: The maximum reset timeout period of TL7702BCDRG4 is typically 200ms.

  7. Q: Does TL7702BCDRG4 have an open-drain or push-pull output? A: TL7702BCDRG4 has an open-drain output, which allows for flexibility in connecting to different microcontrollers or logic devices.

  8. Q: Can TL7702BCDRG4 tolerate voltage spikes or transients? A: Yes, TL7702BCDRG4 has built-in protection against voltage spikes and transients, ensuring reliable operation in noisy environments.

  9. Q: What is the temperature range of TL7702BCDRG4? A: TL7702BCDRG4 can operate within a temperature range of -40°C to +125°C.

  10. Q: Is TL7702BCDRG4 available in different package options? A: Yes, TL7702BCDRG4 is available in various package options, including SOIC-8 and PDIP-8.

Please note that these answers are general and may vary depending on the specific datasheet and manufacturer's specifications for TL7702BCDRG4.