MAX6837HXSD3+T

Product Overview

• Category: Integrated Circuit (IC)
• Use: Voltage Supervisor
• Characteristics: High Accuracy, Low Power Consumption
• Package: SOT23-6
• Essence: Monitors and controls the voltage levels in electronic systems
• Packaging/Quantity: Tape & Reel, 3000 units per reel

Specifications

• Supply Voltage Range: 1.5V to 5.5V
• Threshold Voltage Options: 2.5V, 3.0V, 3.3V, 5.0V
• Operating Temperature Range: -40°C to +85°C
• Quiescent Current: 4µA (typical)
• Reset Timeout Period: 140ms (typical)

Detailed Pin Configuration

The MAX6837HXSD3+T has a total of six pins arranged as follows:

```

---

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

Functional Features

• Monitors the power supply voltage and generates a reset signal when it falls below a specified threshold.
• Provides a manual reset input for immediate system reset.
• Offers multiple threshold voltage options for compatibility with different voltage levels.
• Low quiescent current ensures minimal power consumption.
• Reset timeout period prevents false resets during power-up or voltage fluctuations.

Advantages and Disadvantages

Advantages

• High accuracy in voltage monitoring.
• Low power consumption, suitable for battery-powered devices.
• Small package size allows for space-efficient designs.
• Wide supply voltage range enables compatibility with various systems.

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 MAX6837HXSD3+T operates by continuously monitoring the power supply voltage using an internal voltage reference and comparator. When the voltage falls below the selected threshold voltage, the reset output is activated, signaling a system reset. The manual reset input allows for immediate reset regardless of the voltage level. The device also incorporates a reset timeout period to prevent false resets during power-up or voltage fluctuations.

Detailed Application Field Plans

The MAX6837HXSD3+T finds application in various electronic systems where voltage supervision is critical. Some potential fields of application include:

1. Battery-Powered Devices: Portable electronics such as smartphones, tablets, and wearables can benefit from the low power consumption and accurate voltage monitoring provided by the MAX6837HXSD3+T.

2. Industrial Control Systems: The IC can be used in industrial control systems to ensure reliable operation by monitoring the power supply voltage and initiating a reset if necessary.

3. Automotive Electronics: In automotive applications, the MAX6837HXSD3+T can be employed to monitor the voltage levels in critical systems, providing enhanced safety and reliability.

4. Home Automation: The IC can be integrated into home automation systems to monitor and control the voltage levels in various devices, ensuring proper functioning and preventing damage.

Detailed and Complete Alternative Models

1. MAX6836: Similar to the MAX6837HXSD3+T, but with different threshold voltage options and package types.
2. MAX6381: Voltage supervisor IC with adjustable threshold voltage and additional features like watchdog timer and power-on reset.
3. MAX809: Low-power microprocessor reset circuits with various threshold voltage options and package types.

These alternative models offer similar functionality to the MAX6837HXSD3+T but may have different specifications, pin configurations, or additional features based on specific application requirements.

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