Microchip Technology
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TC646VPA
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TC646VPA

Product Overview

  • Category: Integrated Circuit
  • Use: Voltage Supervisor
  • Characteristics: Precision, Low Power Consumption
  • Package: PDIP-8, SOIC-8
  • Essence: Monolithic CMOS Voltage Supervisor
  • Packaging/Quantity: Tube/50 pieces, Tape & Reel/2500 pieces

Specifications

  • Supply Voltage Range: 1.2V to 5.5V
  • Threshold Voltage Options: 2.63V, 3.08V, 4.38V
  • Reset Timeout Period: 140ms (min)
  • Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The TC646VPA has a total of 8 pins:

  1. GND: Ground
  2. RESET: Active-Low Reset Output
  3. VCC: Positive Supply Voltage
  4. TH: Threshold Input
  5. MR: Manual Reset Input
  6. CT: Capacitor Terminal
  7. TR: Transistor Reset Output
  8. VREF: Reference Voltage Output

Functional Features

  • Monitors the supply voltage and provides a reset signal when it falls below a specified threshold.
  • Offers manual reset capability through the MR pin.
  • Provides a reference voltage output for external use.

Advantages and Disadvantages

Advantages: - High precision voltage monitoring. - Low power consumption. - Wide operating temperature range. - Multiple threshold voltage options.

Disadvantages: - Limited number of package options. - No built-in hysteresis feature.

Working Principles

The TC646VPA operates by comparing the supply voltage with the threshold voltage set by the TH pin. When the supply voltage drops below the threshold, the RESET pin is pulled low, indicating a reset condition. The MR pin allows for manual reset, overriding the voltage monitoring function.

Detailed Application Field Plans

The TC646VPA is commonly used in various applications where precise voltage monitoring is required. Some of the typical application fields include:

  1. Power Supply Units (PSUs)
  2. Battery-Powered Devices
  3. Industrial Control Systems
  4. Automotive Electronics
  5. Medical Equipment

Detailed and Complete Alternative Models

  • TC54VC: Voltage Supervisor with Adjustable Threshold
  • MAX823: Microprocessor Reset Circuit
  • TL7705: Supply Voltage Supervisors
  • ADM6315: Microprocessor Supervisory Circuits

These alternative models offer similar functionality and can be considered as substitutes for the TC646VPA.

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Перелічіть 10 типових запитань і відповідей, пов’язаних із застосуванням TC646VPA у технічних рішеннях

Sure! Here are 10 common questions and answers related to the application of TC646VPA in technical solutions:

  1. Q: What is TC646VPA? A: TC646VPA is a voltage supervisor and reset generator integrated circuit (IC) commonly used in technical solutions.

  2. Q: What is the purpose of TC646VPA in technical solutions? A: The purpose of TC646VPA is to monitor the voltage levels in a system and generate reset signals when necessary to ensure proper operation.

  3. Q: How does TC646VPA work? A: TC646VPA continuously monitors the voltage levels using its internal comparator. When the voltage falls below a certain threshold, it triggers a reset signal to restart the system.

  4. Q: What are the key features of TC646VPA? A: Some key features of TC646VPA include adjustable voltage thresholds, manual reset input, watchdog timer, and low power consumption.

  5. Q: In what applications can TC646VPA be used? A: TC646VPA can be used in various applications such as microcontrollers, embedded systems, power supplies, industrial control systems, and automotive electronics.

  6. Q: Can TC646VPA be used with different supply voltages? A: Yes, TC646VPA supports a wide range of supply voltages, typically from 2.7V to 18V, making it compatible with various systems.

  7. Q: How accurate is the voltage monitoring of TC646VPA? A: TC646VPA provides accurate voltage monitoring with a typical accuracy of ±1.5%.

  8. Q: Does TC646VPA have any built-in protection features? A: Yes, TC646VPA includes built-in protection against short circuits and overvoltage conditions, ensuring the safety of the system.

  9. Q: Can TC646VPA be used in battery-powered applications? A: Yes, TC646VPA's low power consumption makes it suitable for battery-powered applications, helping to conserve energy.

  10. Q: Are there any application notes or reference designs available for TC646VPA? A: Yes, the manufacturer of TC646VPA provides application notes and reference designs that can help users understand and implement the IC effectively in their technical solutions.

Please note that the answers provided here are general and may vary depending on the specific datasheet and documentation of TC646VPA.