MAX6445UK29L+T

Product Overview

• Category: Integrated Circuit (IC)
• Use: Voltage Supervisor
• Characteristics: Low-power, precision voltage monitoring
• Package: SOT-23-5
• Essence: Provides accurate monitoring and reset generation for microprocessors and other digital systems.
• Packaging/Quantity: Tape and Reel, 3000 units per reel

Specifications

• Supply Voltage Range: 1.6V to 5.5V
• Threshold Voltage Options: 2.93V
• Reset Timeout Period: 140ms (typical)
• Quiescent Current: 3µA (typical)
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The MAX6445UK29L+T has a total of 5 pins:

1. GND: Ground connection
2. RESET: Active-low reset output
3. MR: Manual reset input
4. VCC: Positive supply voltage
5. TH: Threshold voltage selection pin

Functional Features

• Accurate voltage monitoring: The MAX6445UK29L+T ensures precise monitoring of the supply voltage, providing reliable reset generation for microprocessors and digital systems.
• Low-power operation: With a quiescent current of only 3µA, this IC minimizes power consumption, making it suitable for battery-powered applications.
• Reset timeout period: The device features a reset timeout period of 140ms, allowing sufficient time for the system to stabilize before asserting the reset signal.
• Manual reset capability: The MR pin allows for manual reset input, enabling external control over the reset function.

Advantages and Disadvantages

Advantages: - High accuracy in voltage monitoring - Low power consumption - Compact package size - Manual reset option

Disadvantages: - Limited threshold voltage options - Single-channel monitoring

Working Principles

The MAX6445UK29L+T operates by comparing the supply voltage with a fixed threshold voltage. When the supply voltage drops below the threshold, the reset output is asserted, indicating a power failure or an out-of-range condition. The reset signal remains active until the supply voltage rises above the threshold and the reset timeout period elapses.

Detailed Application Field Plans

The MAX6445UK29L+T finds applications in various fields, including: 1. Embedded systems: Provides reliable reset generation for microcontrollers and digital processors. 2. Power management: Monitors voltage levels in power supply circuits to ensure stable operation. 3. Industrial automation: Ensures proper functioning of control systems by monitoring supply voltages. 4. Automotive electronics: Guards against voltage fluctuations in automotive electronic systems.

Detailed and Complete Alternative Models

1. MAX6446UK29L+T: Similar to MAX6445UK29L+T but with a different threshold voltage option (2.93V).
2. MAX6447UK29L+T: Offers multiple threshold voltage options for flexible voltage monitoring.
3. MAX6448UK29L+T: Provides additional features such as adjustable reset timeout period and manual reset delay.

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