MAX6427DHUR+T

Product Overview

• Category: Integrated Circuits (ICs)
• Use: Voltage Supervisors
• Characteristics:
  • Monitors the voltage level of a system and provides reset signals when necessary
  • Offers precise voltage threshold settings
  • Low power consumption
  • Small package size
• Package: TDFN-10
• Essence: The MAX6427DHUR+T is a voltage supervisor IC designed to ensure proper system operation by monitoring the voltage levels and generating reset signals when needed.
• Packaging/Quantity: Tape & Reel, 3000 pieces per reel

Specifications

• Supply Voltage Range: 1.6V to 5.5V
• Reset Threshold Options: 2.5V, 3.0V, 3.3V, 5.0V
• Reset Timeout Period: Adjustable from 1ms to 640ms
• Operating Temperature Range: -40°C to +85°C
• Quiescent Current: 1.5µA (typical)

Pin Configuration

The MAX6427DHUR+T has a total of 10 pins arranged as follows:

```

---

| | --| VCC GND |-- Pin 1: Ground (GND) --| RESET OUT |-- Pin 2: Reset Output --| MR |-- Pin 3: Manual Reset Input --| TH |-- Pin 4: Threshold Selection Input --| CT |-- Pin 5: Capacitor Connection --| GND VCC |-- Pin 6: Supply Voltage (VCC) |___________| ```

Functional Features

• Monitors the supply voltage and generates a reset signal when it falls below the threshold voltage.
• Provides an adjustable reset timeout period to ensure proper system recovery.
• Offers a manual reset input for external reset control.
• Allows precise threshold voltage selection through the TH pin.
• Low quiescent current consumption for power-sensitive applications.

Advantages

• Precise voltage monitoring helps prevent system malfunctions and data corruption.
• Adjustable reset timeout period allows customization based on specific system requirements.
• Small package size saves board space in compact designs.
• Low power consumption extends battery life in portable devices.

Disadvantages

• Limited number of available threshold options.
• Manual reset input may require additional external components for proper functionality.

Working Principles

The MAX6427DHUR+T operates by continuously monitoring the supply voltage using an internal voltage reference. When the voltage falls below the selected threshold, the reset output is activated, signaling the need for a system reset. The reset timeout period can be adjusted to allow sufficient time for the system to recover before deactivating the reset signal.

Detailed Application Field Plans

The MAX6427DHUR+T is commonly used in various electronic systems where reliable voltage monitoring and reset generation are critical. Some application fields include:

1. Microcontroller-based Systems: Ensures proper operation and prevents data corruption in microcontroller-based systems.
2. Industrial Control Systems: Monitors power supply integrity in industrial control systems to avoid equipment damage or malfunction.
3. Automotive Electronics: Provides voltage supervision in automotive electronics to prevent system failures and ensure safe operation.
4. Battery-Powered Devices: Protects battery-powered devices from undervoltage conditions, extending battery life and preventing data loss.

Detailed and Complete Alternative Models

1. MAX6428DHUR+T: Similar to MAX6427DHUR+T but with additional features such as adjustable reset threshold and watchdog timer functionality.
2. MAX6389EHUT+T: Voltage supervisor IC with integrated power-on reset and watchdog timer, suitable for applications requiring more advanced monitoring capabilities.
3. MAX6864UK26D3L+: Ultra-low power voltage supervisor with fixed 2.6V threshold and ultra-small SOT23-3 package, ideal for space-constrained designs.

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