TL7757ILPRE3
Product Overview
- Category: Integrated Circuit (IC)
- Use: Voltage Supervisor
- Characteristics: Low-power, Precision, Programmable Delay
- Package: SOP-8 (Small Outline Package)
- Essence: Monolithic CMOS IC with a built-in voltage reference and comparator
- Packaging/Quantity: Tape and Reel, 2500 units per reel
Specifications
- Supply Voltage Range: 1.5V to 6.0V
- Operating Temperature Range: -40°C to +85°C
- Threshold Voltage Options: Programmable from 1.2V to 5.0V in 100mV steps
- Delay Time Options: Programmable from 1ms to 10s in 1ms steps
- Output Type: Active-Low, Open Drain
- Quiescent Current: 20µA (typical)
Pin Configuration
The TL7757ILPRE3 is an SOP-8 package with the following pin configuration:
___________
| |
NC |1 8| VCC
IN |2 7| GND
RST |3 6| OUT
NC |4 5| NC
|___________|
Functional Features
- Precision monitoring of supply voltages
- Programmable threshold voltage and delay time
- Open-drain output for flexibility in interfacing with other devices
- Low quiescent current for power efficiency
- Built-in hysteresis for noise immunity
Advantages and Disadvantages
Advantages: - High precision voltage monitoring - Programmable options for customization - Low power consumption - Flexible output configuration
Disadvantages: - Limited to a specific voltage range (1.5V to 6.0V) - Only available in SOP-8 package
Working Principles
The TL7757ILPRE3 is designed to monitor the supply voltage and provide a reset signal when it falls below a programmable threshold. It utilizes a built-in voltage reference and comparator to compare the supply voltage with the programmed threshold. The delay time can also be programmed to introduce a delay before asserting the reset signal.
Detailed Application Field Plans
The TL7757ILPRE3 is commonly used in various applications where precise monitoring of supply voltages is required. Some typical application fields include:
- Power Management Systems: Ensuring stable power supply for microcontrollers, DSPs, and other sensitive electronic components.
- Industrial Control Systems: Monitoring power supply integrity in PLCs, motor control systems, and industrial automation equipment.
- Automotive Electronics: Overvoltage and undervoltage protection in automotive ECUs, sensors, and control modules.
- Battery-Powered Devices: Preventing damage to batteries and devices by monitoring voltage levels and initiating appropriate actions.
- Communication Systems: Voltage supervision in routers, switches, and network equipment to maintain reliable operation.
Detailed and Complete Alternative Models
- TL7759ILPRE3: Similar to TL7757ILPRE3 but with additional features such as watchdog timer and manual reset input.
- TL7705ACP: Voltage supervisor with fixed threshold voltage options and push-pull output configuration.
- MAX823LEUK+: Low-power voltage monitor with adjustable threshold voltage and push-pull output.
(Note: This list is not exhaustive and there are several other alternative models available in the market.)
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Lista 10 Vanliga frågor och svar relaterade till tillämpningen av TL7757ILPRE3 i tekniska lösningar
Sure! Here are 10 common questions and answers related to the application of TL7757ILPRE3 in technical solutions:
Q: What is TL7757ILPRE3? A: TL7757ILPRE3 is a voltage supervisor and watchdog timer IC used in various technical solutions.
Q: What is the operating voltage range of TL7757ILPRE3? A: The operating voltage range of TL7757ILPRE3 is typically between 1.1V and 5.5V.
Q: What is the purpose of a voltage supervisor? A: A voltage supervisor monitors the supply voltage and generates a reset signal when it falls below a certain threshold, ensuring proper system operation.
Q: Can TL7757ILPRE3 be used in battery-powered applications? A: Yes, TL7757ILPRE3 can be used in battery-powered applications as it operates within a wide voltage range and has low power consumption.
Q: What is the function of the watchdog timer in TL7757ILPRE3? A: The watchdog timer in TL7757ILPRE3 helps detect and recover from software or hardware failures by generating a reset signal if it doesn't receive a periodic input within a specified time.
Q: How accurate is the voltage monitoring in TL7757ILPRE3? A: TL7757ILPRE3 provides accurate voltage monitoring with a typical accuracy of ±1.5%.
Q: Can TL7757ILPRE3 tolerate voltage spikes or transients? A: Yes, TL7757ILPRE3 has built-in protection features that allow it to tolerate voltage spikes and transients up to a certain limit.
Q: Does TL7757ILPRE3 have an adjustable reset threshold? A: No, TL7757ILPRE3 has a fixed reset threshold voltage that cannot be adjusted.
Q: What is the typical power consumption of TL7757ILPRE3? A: The typical power consumption of TL7757ILPRE3 is very low, usually in the range of a few microamps.
Q: Can TL7757ILPRE3 be used in automotive applications? A: Yes, TL7757ILPRE3 is suitable for automotive applications as it meets the necessary requirements such as temperature range and reliability standards.
Please note that these answers are general and may vary depending on the specific datasheet and application requirements of TL7757ILPRE3.