MAX6369KA+ - English Editing Encyclopedia Entry

Product Overview

Category: Integrated Circuit (IC)

Use: Voltage Monitor and Reset Circuit

Characteristics: - Monitors the voltage level of a power supply - Generates a reset signal when the voltage falls below a certain threshold - Ensures proper operation of microcontrollers and other digital systems

Package: SOT-23-8

Essence: The MAX6369KA+ is a voltage monitor and reset circuit that provides reliable power supply monitoring for various electronic devices.

Packaging/Quantity: The MAX6369KA+ is available in a standard SOT-23-8 package. It is typically sold in reels or tubes containing multiple units.

Specifications

• Supply Voltage Range: 1.6V to 5.5V
• Reset Threshold Options: 2.5V, 3.0V, 3.3V, 3.6V, 4.38V
• Reset Timeout Period: Adjustable from 1ms to 640ms
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The MAX6369KA+ has eight pins arranged as follows:

```

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| | --| VCC GND |-- Pin 1: Ground (GND) --| MR RST |-- Pin 2: Active-Low Reset Output (RST) --| TH TO |-- Pin 3: Threshold Input (TH) and Timeout Output (TO) --| CT MR |-- Pin 4: Capacitor Connection (CT) and Manual Reset Input (MR) --| RESET GND |-- Pin 5: Ground (GND) --| VCC VCC |-- Pin 6: Power Supply Input (VCC) --| NC NC |-- Pin 7: No Connection (NC) |___________| ```

Functional Features

1. Voltage Monitoring: The MAX6369KA+ continuously monitors the voltage level of the power supply.
2. Reset Generation: When the voltage falls below the set threshold, the circuit generates an active-low reset signal.
3. Adjustable Timeout Period: The reset signal remains active for a programmable timeout period, ensuring proper system initialization.
4. Manual Reset Input: The circuit can be manually reset by applying a low-level signal to the MR pin.
5. Power Supply Range: The MAX6369KA+ operates over a wide supply voltage range, making it suitable for various applications.

Advantages and Disadvantages

Advantages: - Accurate voltage monitoring - Adjustable reset timeout period - Low power consumption - Small package size - Wide operating temperature range

Disadvantages: - Limited number of available threshold options - Requires an external capacitor for operation

Working Principles

The MAX6369KA+ utilizes a precision voltage reference and a comparator to monitor the power supply voltage. When the voltage drops below the set threshold, the comparator triggers the reset circuitry, generating an active-low reset signal. The reset signal remains active for the programmed timeout period, allowing the system to initialize properly. The circuit also includes protection against voltage transients and noise.

Detailed Application Field Plans

The MAX6369KA+ is commonly used in various electronic systems that require reliable power supply monitoring and reset functionality. Some typical application fields include:

1. Microcontroller Systems: Ensures proper initialization and reliable operation of microcontrollers.
2. Industrial Control Systems: Provides voltage monitoring and reset capabilities for industrial automation equipment.
3. Embedded Systems: Enables safe startup and shutdown sequences in embedded devices.
4. Communication Equipment: Guards against power supply fluctuations in networking devices and communication systems.
5. Automotive Electronics: Monitors the vehicle's power supply to prevent malfunctions and ensure system stability.

Detailed and Complete Alternative Models

1. MAX6369KA+T: Same specifications and features as MAX6369KA+, but available in a tape-and-reel packaging option.
2. MAX6369KA+T/R: Same as MAX6369KA+T, but supplied in a 2500-unit reel packaging option.
3. MAX6369KA+T/AT: Same as MAX6369KA+T, but supplied in an 8000-unit reel packaging option.

These alternative models provide the same functionality as the MAX6369KA+ but offer different packaging options to suit various production requirements.

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