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MAX819LCSA+T
Product Overview
- Category: Integrated Circuit (IC)
- Use: Power Supply Monitor
- Characteristics: Low-power, high-accuracy, voltage monitoring
- Package: 8-pin SOIC (Small Outline Integrated Circuit)
- Essence: Monitors the voltage level of a power supply and provides an output signal indicating whether the voltage is within the desired range.
- Packaging/Quantity: Tape and reel packaging, 2500 units per reel
Specifications
- Supply Voltage Range: 2.5V to 5.5V
- Operating Temperature Range: -40°C to +85°C
- Accuracy: ±1%
- Threshold Voltage Options: 1.575V, 2.048V, 2.5V, 3.3V, 5V
- Output Type: Active low, open-drain
- Quiescent Current: 10µA (typical)
Detailed Pin Configuration
The MAX819LCSA+T has the following pin configuration:
- GND: Ground connection
- VCC: Positive supply voltage input
- TH: Threshold voltage selection pin
- RESET: Output signal indicating power supply status
- MR: Manual reset input
- NC: No connection
- NC: No connection
- GND: Ground connection
Functional Features
- Monitors the voltage level of a power supply in real-time
- Provides a reset signal when the voltage falls below the threshold
- Selectable threshold voltage options for flexibility
- Low quiescent current for power efficiency
- Open-drain output allows for easy interfacing with other devices
Advantages and Disadvantages
Advantages
- High accuracy in voltage monitoring
- Wide supply voltage range allows for versatile applications
- Low power consumption
- Compact and easy-to-use package
Disadvantages
- Limited threshold voltage options may not suit all applications
- No built-in hysteresis feature for noise immunity
Working Principles
The MAX819LCSA+T operates by continuously monitoring the input voltage level. It compares the voltage against the selected threshold voltage using an internal comparator. When the voltage falls below the threshold, the RESET pin is pulled low, indicating a power supply fault. The MR pin can be used to manually reset the device.
Detailed Application Field Plans
The MAX819LCSA+T finds applications in various fields, including:
- Power supply units for computers and servers
- Industrial control systems
- Battery-powered devices
- Consumer electronics
- Automotive electronics
Detailed and Complete Alternative Models
- MAX809: Similar power supply monitor IC with adjustable threshold voltage.
- MAX823: Power supply monitor IC with integrated watchdog timer.
- MAX638: Voltage monitor IC with additional features like power-on reset and manual reset.
These alternative models offer similar functionality and can be considered based on specific application requirements.
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Enumere 10 preguntas y respuestas comunes relacionadas con la aplicación de MAX819LCSA+T en soluciones técnicas
Sure! Here are 10 common questions and answers related to the application of MAX819LCSA+T in technical solutions:
Q: What is the MAX819LCSA+T? A: The MAX819LCSA+T is a voltage supervisor IC that monitors the power supply voltage and provides reset signals to the microcontroller or other digital systems.
Q: What is the operating voltage range of MAX819LCSA+T? A: The operating voltage range of MAX819LCSA+T is typically between 1.6V and 5.5V.
Q: How does MAX819LCSA+T provide reset signals? A: MAX819LCSA+T provides reset signals by asserting the RESET output low when the monitored voltage drops below the specified threshold.
Q: Can I adjust the reset threshold voltage of MAX819LCSA+T? A: No, the reset threshold voltage of MAX819LCSA+T is fixed and cannot be adjusted.
Q: What is the typical reset timeout period of MAX819LCSA+T? A: The typical reset timeout period of MAX819LCSA+T is 140ms.
Q: Is MAX819LCSA+T suitable for automotive applications? A: Yes, MAX819LCSA+T is suitable for automotive applications as it meets the AEC-Q100 Grade 1 automotive qualification.
Q: Can I use MAX819LCSA+T in battery-powered devices? A: Yes, MAX819LCSA+T can be used in battery-powered devices as it has a low quiescent current of typically 8µA.
Q: Does MAX819LCSA+T have built-in power-on reset circuitry? A: Yes, MAX819LCSA+T has built-in power-on reset circuitry that ensures a reliable system startup.
Q: Can I use MAX819LCSA+T in industrial control systems? A: Yes, MAX819LCSA+T is suitable for industrial control systems as it operates over the industrial temperature range of -40°C to +85°C.
Q: What package options are available for MAX819LCSA+T? A: MAX819LCSA+T is available in a 8-pin SOIC package.
Please note that these answers are general and may vary depending on the specific application and requirements. It's always recommended to refer to the datasheet and consult with the manufacturer for detailed information.