MAX817MCSA+ - English Editing Encyclopedia Entry

Product Overview

Category

The MAX817MCSA+ belongs to the category of integrated circuits (ICs).

Use

This product is commonly used as a voltage detector and reset circuit in various electronic devices.

Characteristics

• Voltage detection range: 1.6V to 5.5V
• Low supply current: 1µA (typical)
• Adjustable reset threshold voltage
• Open-drain active-low RESET output
• Small package size: SOIC-8
• RoHS compliant

Package and Quantity

The MAX817MCSA+ is available in a small outline integrated circuit (SOIC) package with 8 pins. It is typically sold in reels or tubes containing multiple units.

Specifications

• Supply Voltage Range: 1.6V to 5.5V
• Operating Temperature Range: -40°C to +85°C
• Reset Threshold Voltage Accuracy: ±1.5%
• Quiescent Current: 1µA (typical), 2µA (maximum)
• Reset Timeout Period: 140ms (typical), 280ms (maximum)

Pin Configuration

The MAX817MCSA+ has the following pin configuration:

```

---

| | --| VCC GND |-- Pin 1: Ground (GND) --| RST OUT |-- Pin 2: Reset Output (Active-Low) --| MR NC |-- Pin 3: Master Reset (MR) / No Connection (NC) --| GND GND |-- Pin 4: Ground (GND) --| TH TR |-- Pin 5: Threshold Input (TH) / Trigger Input (TR) --| GND GND |-- Pin 6: Ground (GND) --| VCC GND |-- Pin 7: Supply Voltage (VCC) --| GND GND |-- Pin 8: Ground (GND) |___________| ```

Functional Features

• Voltage detection and reset generation: The MAX817MCSA+ monitors the input voltage and generates a reset signal when it falls below a user-defined threshold.
• Adjustable threshold voltage: The threshold voltage can be set using an external resistor divider network connected to the TH pin.
• Open-drain active-low RESET output: The reset output is an open-drain configuration, allowing easy interfacing with other devices.
• Low quiescent current: The IC consumes very low current during operation, making it suitable for battery-powered applications.

Advantages and Disadvantages

Advantages

• Wide operating voltage range allows compatibility with various systems.
• Adjustable threshold voltage provides flexibility in different applications.
• Low supply current minimizes power consumption.
• Small package size enables space-saving designs.
• RoHS compliance ensures environmental friendliness.

Disadvantages

• Lack of built-in hysteresis may lead to potential noise-related issues in certain applications.
• Limited number of pins may restrict the integration of additional features.

Working Principles

The MAX817MCSA+ operates by comparing the input voltage at the TH pin with a reference voltage. When the input voltage drops below the threshold voltage, the internal circuitry triggers the reset output to go low. This reset signal remains active until the input voltage rises above the threshold voltage again.

Detailed Application Field Plans

The MAX817MCSA+ finds applications in various fields, including but not limited to: 1. Battery-powered devices: Provides low-power voltage monitoring and reset functionality in portable electronics. 2. Industrial control systems: Ensures reliable system reset in industrial automation and control applications. 3. Automotive electronics: Monitors voltage levels in automotive systems, triggering necessary actions during power fluctuations. 4. Consumer electronics: Enables proper reset and initialization of microcontrollers and other integrated circuits in consumer devices.

Detailed and Complete Alternative Models

1. MAX809: Similar voltage detector and reset IC with fixed threshold voltages.
2. MAX811: Voltage monitor and reset IC with manual reset input and adjustable threshold voltage.
3. MAX803: Microprocessor supervisory circuit with watchdog timer and reset output.

These alternative models offer similar functionality to the MAX817MCSA+ and can be considered based on specific application requirements.

Word count: 550 words