MAX812LEUS+TG035

Product Overview

• Category: Integrated Circuit (IC)
• Use: Voltage Monitor and Reset Circuit
• Characteristics:
  • Monitors the power supply voltage of a microcontroller or other digital system
  • Generates a reset signal when the voltage drops below a specified threshold
  • Ensures reliable operation of the system by preventing it from running at an insufficient voltage level
• Package: SOT-143
• Essence: Provides voltage monitoring and reset functionality in a compact package
• Packaging/Quantity: Tape and Reel, 3000 units per reel

Specifications

• Supply Voltage Range: 1.2V to 5.5V
• Threshold Voltage Options: 2.93V, 3.08V, 3.63V, 4.38V
• Reset Timeout Period: 140ms (typical)
• Quiescent Current: 7µA (typical)
• Operating Temperature Range: -40°C to +85°C

Pin Configuration

The MAX812LEUS+TG035 has the following pin configuration:

```

---

| | --| RESET | --| GND | --| MR | --| VCC | |___________| ```

• RESET: Output pin for the reset signal
• GND: Ground reference
• MR: Manual reset input pin
• VCC: Power supply input pin

Functional Features

• Monitors the power supply voltage continuously
• Generates a reset signal when the voltage drops below the specified threshold
• Provides a manual reset option through the MR pin
• Low quiescent current consumption for power efficiency
• Small form factor package for space-constrained applications

Advantages and Disadvantages

Advantages: - Reliable voltage monitoring and reset functionality - Wide supply voltage range allows compatibility with various systems - Low power consumption for energy-efficient operation - Compact package size suitable for space-constrained designs

Disadvantages: - Limited threshold voltage options may not cover all voltage requirements - Reset timeout period may not be adjustable, limiting flexibility in certain applications

Working Principles

The MAX812LEUS+TG035 operates by continuously monitoring the power supply voltage connected to the VCC pin. When the voltage drops below the specified threshold, the circuit generates a reset signal on the RESET pin. This signal can be used to reset the microcontroller or digital system, ensuring reliable operation even under low voltage conditions. The MR pin provides a manual reset option, allowing the system to be reset externally.

Detailed Application Field Plans

The MAX812LEUS+TG035 is commonly used in various applications where voltage monitoring and reset functionality are critical. Some of the typical application fields include:

1. Microcontrollers: Ensuring proper operation and preventing data corruption during power fluctuations.
2. Industrial Control Systems: Providing reliable reset functionality for critical control units.
3. Embedded Systems: Protecting sensitive components from operating at insufficient voltages.
4. Automotive Electronics: Monitoring and resetting microcontrollers in automotive systems.
5. Power Management: Enabling efficient power management by monitoring voltage levels.

Detailed and Complete Alternative Models

1. MAX811LEUS+TG035: Similar to MAX812LEUS+TG035 but with different threshold voltage options.
2. MAX813LEUS+TG035: Voltage monitor and reset circuit with adjustable reset timeout period.
3. MAX809LEUS+TG035: Voltage monitor and reset circuit with additional watchdog timer functionality.

These alternative models offer similar functionality with slight variations to cater to specific requirements.

Word count: 445 words