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TL7757CLP
Product Overview
- Category: Integrated Circuit (IC)
- Use: Voltage Supervisor
- Characteristics: Low-power, Precision, Adjustable Threshold
- Package: DIP (Dual In-line Package)
- Essence: Monolithic CMOS Voltage Supervisor
- Packaging/Quantity: Tube/25 pieces per tube
Specifications
- Supply Voltage Range: 1.2V to 40V
- Threshold Voltage Options: Adjustable or Fixed
- Output Type: Active-Low or Active-High
- Reset Timeout Period: Adjustable or Fixed
- Operating Temperature Range: -40°C to +85°C
- Quiescent Current: 20µA (typical)
Detailed Pin Configuration
The TL7757CLP IC has a total of 8 pins arranged as follows:
___________
| |
1 | VCC | 8
2 | GND | 7
3 | RESET | 6
4 | THRESHOLD | 5
|___________|
Functional Features
- Monitors the supply voltage and provides a reset signal when it falls below a certain threshold.
- Adjustable threshold voltage allows customization for different applications.
- Can be configured to provide an active-low or active-high reset output.
- Reset timeout period can be adjusted or fixed depending on the specific model.
- Low quiescent current consumption ensures minimal power usage.
Advantages and Disadvantages
Advantages: - Wide supply voltage range enables versatile use in various systems. - Adjustable threshold voltage offers flexibility in voltage monitoring. - Low-power design minimizes energy consumption. - Precise voltage supervision enhances system reliability.
Disadvantages: - Limited number of pins may restrict the number of external connections. - Fixed reset timeout period may not be suitable for all applications.
Working Principles
The TL7757CLP operates by continuously monitoring the supply voltage. When the voltage falls below the threshold set by the THRESHOLD pin, the RESET pin is activated, providing a reset signal to the system. The threshold voltage can be adjusted using an external resistor connected to the THRESHOLD pin. The IC also allows configuration for active-low or active-high reset output.
Detailed Application Field Plans
The TL7757CLP finds application in various fields where voltage supervision is critical. Some potential areas of use include:
- Power Supply Units (PSUs): Ensures stable operation and protects sensitive components from undervoltage conditions.
- Microcontrollers and Microprocessors: Provides reliable reset signals during power-up or voltage fluctuations.
- Industrial Control Systems: Monitors power supply integrity to prevent damage to equipment and ensure safe operation.
- Automotive Electronics: Protects electronic systems from voltage drops and ensures proper functioning.
- Battery-Powered Devices: Guards against excessive discharge and extends battery life.
Detailed and Complete Alternative Models
- TL7700CP - Fixed Threshold Voltage, Active-Low Reset
- TL7712ACP - Adjustable Threshold Voltage, Active-High Reset
- TL7726CD - Adjustable Threshold Voltage, Active-Low Reset
- TL7733ACD - Fixed Threshold Voltage, Active-High Reset
- TL7742ACD - Adjustable Threshold Voltage, Active-Low Reset
These alternative models offer similar functionality with slight variations in features and specifications.
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Enumere 10 preguntas y respuestas comunes relacionadas con la aplicación de TL7757CLP en soluciones técnicas
Sure! Here are 10 common questions and answers related to the application of TL7757CLP in technical solutions:
Q: What is TL7757CLP? A: TL7757CLP is a voltage supervisor and watchdog timer IC (integrated circuit) commonly used in technical solutions.
Q: What is the purpose of TL7757CLP? A: The purpose of TL7757CLP is to monitor the power supply voltage and provide reset signals to microcontrollers or other digital devices when the voltage falls below a certain threshold.
Q: What is the operating voltage range of TL7757CLP? A: TL7757CLP operates within a voltage range of 1.1V to 6.0V.
Q: How does TL7757CLP detect low voltage conditions? A: TL7757CLP uses an internal voltage reference and comparator to compare the monitored voltage with a preset threshold. If the voltage drops below this threshold, it triggers a reset signal.
Q: Can TL7757CLP be used in battery-powered applications? A: Yes, TL7757CLP can be used in battery-powered applications as it has a low quiescent current consumption, making it suitable for power-sensitive designs.
Q: Does TL7757CLP have any built-in delay for the reset signal? A: Yes, TL7757CLP has a fixed delay of approximately 200ms to ensure stable power supply before releasing the reset signal.
Q: Can TL7757CLP generate multiple reset signals for different devices? A: No, TL7757CLP is designed to provide a single reset signal. For multiple devices, additional external logic may be required.
Q: What is the watchdog timer feature in TL7757CLP? A: The watchdog timer in TL7757CLP monitors the activity of a microcontroller or system and generates a reset signal if it detects a lack of activity within a specified time period.
Q: Can TL7757CLP be used in automotive applications? A: Yes, TL7757CLP is suitable for automotive applications as it meets the necessary requirements for temperature range, voltage stability, and reliability.
Q: Are there any specific precautions to consider when using TL7757CLP? A: It is important to follow the recommended operating conditions, such as voltage levels, temperature range, and input/output capacitance limits, as specified in the datasheet to ensure proper functionality and reliability.
Please note that these answers are general and may vary depending on the specific application and design considerations. Always refer to the datasheet and consult with technical experts for accurate information.