MAX6837GXSD2/GG8

Product Overview

• Category: Integrated Circuit (IC)
• Use: Power Supply Supervisor
• Characteristics: High accuracy, low power consumption, small package size
• Package: 8-pin TDFN (Thin Dual Flat No-Lead) package
• Essence: Monitors and supervises the power supply voltage to ensure proper operation of electronic devices.
• Packaging/Quantity: Available in tape and reel packaging, with a quantity of 2500 units per reel.

Specifications

• Supply Voltage Range: 1.5V to 5.5V
• Operating Temperature Range: -40°C to +85°C
• Reset Threshold Voltage: Adjustable from 1.2V to 4.63V
• Reset Timeout Period: Adjustable from 1ms to 640ms
• Quiescent Current: 3µA (typical)

Pin Configuration

The MAX6837GXSD2/GG8 features an 8-pin TDFN package with the following pin configuration:

1. GND: Ground
2. RESET#: Active-low reset output
3. MR#: Manual reset input
4. VCC: Supply voltage input
5. RESET#: Active-low reset output
6. GND: Ground
7. RESET#: Active-low reset output
8. RESET#: Active-low reset output

Functional Features

• Monitors the power supply voltage and asserts a reset signal when it falls below a specified threshold.
• Provides manual reset capability through the MR# pin.
• Adjustable reset threshold voltage and timeout period for flexibility in different applications.
• Low quiescent current ensures minimal power consumption.

Advantages and Disadvantages

Advantages

• High accuracy in monitoring power supply voltage.
• Low power consumption extends battery life in portable devices.
• Small package size allows for space-saving designs.

Disadvantages

• Limited to a maximum supply voltage of 5.5V.
• Reset timeout period has a maximum limit of 640ms.

Working Principles

The MAX6837GXSD2/GG8 operates by continuously monitoring the power supply voltage. When the voltage falls below the user-adjustable threshold, the IC asserts a reset signal to indicate a power failure. The reset signal remains active until the voltage rises above the threshold or a manual reset is triggered through the MR# pin.

Detailed Application Field Plans

The MAX6837GXSD2/GG8 finds applications in various electronic devices where reliable power supply supervision is crucial. Some potential application fields include:

1. Microcontrollers and microprocessors
2. Embedded systems
3. Industrial automation equipment
4. Medical devices
5. Automotive electronics
6. Consumer electronics

Detailed and Complete Alternative Models

1. MAX6836: Similar power supply supervisor with adjustable threshold and timeout period.
2. MAX6838: Power supply supervisor with additional features like watchdog timer and battery backup switchover.
3. MAX6819: Power supply supervisor with fixed threshold voltage and adjustable timeout period.

These alternative models offer similar functionality and can be considered based on specific requirements.

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