MAX6447UK46L+T

Basic Information Overview

• Category: Integrated Circuit (IC)
• Use: Voltage Monitoring and Resetting
• Characteristics: Low-power, precision voltage monitor with adjustable threshold
• Package: SOT23-5
• Essence: Monitors the voltage level of a power supply and generates a reset signal when the voltage falls below a certain threshold
• Packaging/Quantity: Tape and Reel, 3000 units per reel

Specifications

• Supply Voltage Range: 1.6V to 5.5V
• Threshold Voltage Range: 0.4V to VDD - 0.2V
• Quiescent Current: 3µA (typical)
• Reset Timeout Period: Adjustable from 1ms to 640ms
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The MAX6447UK46L+T IC has a total of 5 pins arranged as follows: 1. GND: Ground connection 2. RESET: Output pin for reset signal 3. TH: Threshold adjustment pin 4. MR: Manual reset input pin 5. VDD: Power supply input

Functional Features

• Precision voltage monitoring: The MAX6447UK46L+T accurately monitors the voltage level of the power supply.
• Adjustable threshold: The threshold voltage can be adjusted using the TH pin, allowing customization for different applications.
• Manual reset capability: The MR pin allows for manual resetting of the device.
• Low-power operation: With a quiescent current of only 3µA, the IC minimizes power consumption.

Advantages and Disadvantages

Advantages: - Precise voltage monitoring ensures reliable operation of the system. - Adjustable threshold allows flexibility in different voltage level requirements. - Low-power operation prolongs battery life in portable devices.

Disadvantages: - Limited reset timeout period range may not be suitable for all applications. - SOT23-5 package may require additional space on the PCB compared to smaller packages.

Working Principles

The MAX6447UK46L+T operates by continuously monitoring the voltage level at the VDD pin. When the voltage falls below the threshold set by the TH pin, the RESET pin is asserted, generating a reset signal. The reset signal remains active until the voltage rises above the threshold or a manual reset is triggered through the MR pin.

Detailed Application Field Plans

The MAX6447UK46L+T is commonly used in various applications where voltage monitoring and resetting are critical. Some potential application fields include: 1. Battery-powered devices: Ensures proper operation and prevents damage due to low battery voltage. 2. Microcontrollers and digital systems: Provides a reliable reset signal during power-up or voltage fluctuations. 3. Industrial automation: Monitors power supply integrity to prevent system failures.

Detailed and Complete Alternative Models

1. MAX6448UK46L+T: Similar to MAX6447UK46L+T but with an extended reset timeout period range.
2. MAX6449UK46L+T: Offers additional features such as adjustable hysteresis and watchdog timer functionality.
3. MAX6450UK46L+T: Provides multiple voltage monitoring channels for monitoring different power supplies simultaneously.

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