MAX6757UTTD3+T

Product Overview

• Category: Integrated Circuit (IC)
• Use: Voltage Monitor and Reset Circuit
• Characteristics:
  • Monitors the voltage level of a power supply and generates a reset signal when the voltage falls below a specified threshold.
  • Provides a reliable way to ensure proper operation of electronic systems by resetting them in case of power supply issues.
• Package: SOT23-6
• Essence: Voltage monitoring and reset functionality in a compact package.
• Packaging/Quantity: Tape and Reel, 3000 units per reel.

Specifications

• Supply Voltage Range: 1.6V to 5.5V
• Threshold Voltage Options: 2.5V, 3.0V, 3.3V, 4.38V, and Adjustable
• Reset Timeout Period: 140ms (typical)
• Operating Temperature Range: -40°C to +85°C

Pin Configuration

The MAX6757UTTD3+T has the following pin configuration:

```

---

| | --|----|-- |____| ```

Pin Description: 1. GND: Ground connection. 2. MR: Manual Reset input for immediate system reset. 3. RESET: Active-low reset output. 4. VCC: Power supply voltage input. 5. TH: Threshold voltage selection pin. 6. NC: No Connection.

Functional Features

• Voltage Monitoring: The MAX6757UTTD3+T continuously monitors the voltage level at the VCC pin.
• Reset Generation: When the voltage falls below the threshold set by the TH pin, the device generates an active-low reset signal on the RESET pin.
• Manual Reset: The MR pin allows for an immediate system reset, overriding the voltage monitoring function.
• Adjustable Threshold: The TH pin can be used to set a custom threshold voltage by connecting an external resistor divider network.
• Reset Timeout: The device ensures that the reset signal remains active for a minimum timeout period to allow the system to stabilize.

Advantages and Disadvantages

Advantages: - Compact package allows for space-efficient integration into electronic systems. - Wide supply voltage range enables compatibility with various power supply configurations. - Adjustable threshold option provides flexibility in voltage monitoring applications. - Reset timeout feature prevents false resets due to temporary voltage fluctuations.

Disadvantages: - Limited threshold voltage options may not cover all voltage monitoring requirements. - Lack of additional features such as hysteresis or adjustable timeout period.

Working Principles

The MAX6757UTTD3+T operates by comparing the voltage at the VCC pin with the threshold voltage set by the TH pin. When the VCC voltage falls below the threshold, the internal circuitry generates an active-low reset signal on the RESET pin. This reset signal remains active for a minimum timeout period, allowing the system to stabilize before resuming normal operation. The MR pin provides a manual reset option, overriding the voltage monitoring function.

Detailed Application Field Plans

The MAX6757UTTD3+T finds applications in various electronic systems where reliable voltage monitoring and reset functionality are crucial. Some potential application fields include:

1. Microcontrollers and Microprocessors: Ensuring proper system initialization and preventing data corruption during power supply fluctuations.
2. Industrial Control Systems: Monitoring power supply integrity in critical control systems to prevent malfunctions or accidents.
3. Automotive Electronics: Resetting electronic modules in case of voltage drops or transients to maintain system reliability.
4. Battery-Powered Devices: Protecting battery-powered devices from damage due to undervoltage conditions.
5. Communication Equipment: Providing a fail-safe mechanism to reset communication modules in case of power supply issues.

Detailed and Complete Alternative Models

1. MAX6758UTTD3+T: Similar to MAX6757UTTD3+T but with additional hysteresis feature for improved noise immunity.
2. MAX6759UTTD3+T: Voltage monitor and reset circuit with adjustable timeout period for customized system requirements.
3. MAX6760UTTD3+T: Dual voltage monitor and reset circuit in a compact package, suitable for systems with multiple power supplies.

(Note: The above alternative models are suggestions and may not cover all available options in the market.)

Word count: 534 words