TLC7725QP

Product Overview

Category: Integrated Circuit
Use: Voltage Supervisor
Characteristics: Low Power, Precision, Adjustable Threshold
Package: 20-pin Plastic DIP
Essence: Monolithic CMOS Voltage Supervisor
Packaging/Quantity: Tube/25 pieces

Specifications

Supply Voltage Range: 2.7V to 18V
Threshold Voltage Options: 1.2V, 1.8V, 2.5V, 3V, 3.3V, 5V
Operating Temperature Range: -40°C to +85°C
Quiescent Current: 10µA (Typical)
Output Type: Active-Low Push-Pull
Reset Timeout Period: Adjustable from 1ms to 640ms

Detailed Pin Configuration

The TLC7725QP has a total of 20 pins. The pin configuration is as follows:

GND: Ground
VDD: Positive Supply Voltage
MR: Master Reset Input
RESET: Active-Low Reset Output
TH: Threshold Voltage Selection Input
CT: Capacitor Connection for Reset Timeout
OUT: Output
NC: No Connection
NC: No Connection
NC: No Connection
NC: No Connection
NC: No Connection
NC: No Connection
NC: No Connection
NC: No Connection
NC: No Connection
NC: No Connection
NC: No Connection
NC: No Connection
NC: No Connection

Functional Features

Monitors the voltage level and provides a reset signal when it falls below a specified threshold.
Adjustable threshold voltage allows flexibility in monitoring different voltage levels.
Low quiescent current makes it suitable for battery-powered applications.
Active-low push-pull output provides a strong and reliable reset signal.

Advantages and Disadvantages

Advantages

Wide supply voltage range allows compatibility with various systems.
Adjustable threshold voltage options provide versatility.
Low power consumption extends battery life.
Robust push-pull output ensures reliable reset signaling.

Disadvantages

Limited number of available pins for additional functionality.
Not suitable for high-voltage applications above 18V.

Working Principles

The TLC7725QP is designed to monitor the voltage level of a system. It compares the input voltage with the selected threshold voltage. When the input voltage falls below the threshold, the reset output is activated, indicating a low voltage condition. The reset timeout period can be adjusted using an external capacitor connected to the CT pin. Once the input voltage rises above the threshold and the reset timeout period elapses, the reset output is deactivated.

Detailed Application Field Plans

The TLC7725QP is commonly used in various applications where voltage supervision is critical. Some of the typical application fields include:

Battery-Powered Devices: Ensuring proper operation and preventing damage due to low battery voltage.
Microcontroller Systems: Providing a reset signal during power-up or when the system voltage drops below a certain level.
Industrial Control Systems: Monitoring power supply voltages to prevent malfunctions or data corruption.
Automotive Electronics: Protecting sensitive components from voltage fluctuations and ensuring reliable operation.

Detailed and Complete Alternative Models

TL7705ACP: Similar voltage supervisor IC with fixed 2.5V threshold voltage.
MAX823: Voltage supervisor IC with adjustable threshold voltage and higher operating temperature range.
LTC2917: Precision voltage supervisor IC with programmable threshold voltage and wide supply voltage range.

(Note: The above alternative models are provided for reference and may have different specifications and pin configurations. Please refer to the respective datasheets for detailed information.)

This concludes the encyclopedia entry for TLC7725QP, a versatile voltage supervisor integrated circuit with adjustable threshold voltage and low power consumption.

Seznam 10 běžných otázek a odpovědí souvisejících s aplikací TLC7725QP v technických řešeních

Sure! Here are 10 common questions and answers related to the application of TLC7725QP in technical solutions:

Q: What is the TLC7725QP? A: The TLC7725QP is a low-power voltage supervisor IC that monitors the power supply voltage and provides a reset signal when the voltage drops below a certain threshold.
Q: What is the operating voltage range of the TLC7725QP? A: The TLC7725QP operates within a voltage range of 1.8V to 6.0V.
Q: How does the TLC7725QP help in technical solutions? A: The TLC7725QP ensures proper system initialization by monitoring the power supply voltage and generating a reset signal to prevent erratic behavior during power-up or brownout conditions.
Q: Can the TLC7725QP be used in battery-powered applications? A: Yes, the TLC7725QP is suitable for battery-powered applications due to its low-power consumption and wide operating voltage range.
Q: What is the typical reset voltage threshold of the TLC7725QP? A: The typical reset voltage threshold of the TLC7725QP is 4.55V.
Q: Does the TLC7725QP have an adjustable reset voltage threshold? A: No, the TLC7725QP has a fixed reset voltage threshold and does not offer adjustment options.
Q: Can the TLC7725QP tolerate voltage spikes or transients? A: Yes, the TLC7725QP has built-in glitch immunity and can tolerate voltage spikes or transients without generating false reset signals.
Q: What is the maximum supply current of the TLC7725QP? A: The maximum supply current of the TLC7725QP is typically 20µA.
Q: Does the TLC7725QP have an open-drain or push-pull output? A: The TLC7725QP has an open-drain output, which allows for flexibility in connecting to different microcontrollers or logic devices.
Q: Is the TLC7725QP available in a small package? A: Yes, the TLC7725QP is available in a small 8-pin SOIC package, making it suitable for space-constrained applications.

Please note that these answers are general and may vary depending on the specific datasheet and application requirements of the TLC7725QP.