MAX803SQ308T1G

Product Overview

• Category: Integrated Circuit
• Use: Voltage Detector
• Characteristics: Low-power, Precision, Reset Output
• Package: SOT-23
• Essence: Monolithic Microprocessor Reset Circuits
• Packaging/Quantity: Tape and Reel, 3000 pieces per reel

Specifications

• Supply Voltage Range: 1.0V to 5.5V
• Reset Threshold Voltage Options: 2.93V, 3.08V, 3.63V, 4.38V
• Reset Timeout Period Options: 1.6ms, 20ms, 140ms, 1120ms
• Quiescent Current: 1µA (typical)
• Operating Temperature Range: -40°C to +85°C

Pin Configuration

The MAX803SQ308T1G has a SOT-23 package with three pins:

1. VCC: Supply Voltage Input
2. GND: Ground
3. RESET: Reset Output

Functional Features

• Monitors the supply voltage and asserts the reset output when the voltage drops below the specified threshold.
• Provides a precision reset signal to microprocessors, microcontrollers, or other digital logic devices.
• Offers a choice of reset threshold voltage and timeout period options for flexibility in different applications.
• Low quiescent current consumption ensures minimal power usage.

Advantages

• Small form factor and low-profile package make it suitable for space-constrained designs.
• Wide supply voltage range allows compatibility with various systems.
• Precision reset output ensures reliable system operation.
• Low quiescent current prolongs battery life in portable devices.

Disadvantages

• Limited number of reset threshold voltage and timeout period options may not meet the requirements of all applications.
• SOT-23 package may be challenging to solder for inexperienced users.

Working Principles

The MAX803SQ308T1G is designed to monitor the supply voltage of a system. When the voltage drops below the specified threshold, the reset output is asserted, indicating that the system should be reset. The reset signal remains active until the supply voltage rises above the threshold and the timeout period elapses.

Application Field Plans

The MAX803SQ308T1G can be used in various applications where reliable voltage monitoring and system reset functionality are required. Some potential application fields include:

1. Battery-powered devices: Ensures proper operation by resetting the system when the battery voltage drops too low.
2. Industrial control systems: Provides a reliable reset signal to microcontrollers in case of power fluctuations or failures.
3. Automotive electronics: Monitors the vehicle's electrical system and triggers a reset if the voltage falls outside the acceptable range.
4. Medical equipment: Ensures the safe operation of critical medical devices by resetting them in case of power supply issues.

Alternative Models

• MAX803SQ308T1G is part of the MAX803 series from Maxim Integrated.
• Other models in the series include MAX803SQ293T1G (2.93V threshold), MAX803SQ363T1G (3.63V threshold), and MAX803SQ438T1G (4.38V threshold).
• These models offer similar features and functionality but with different reset threshold voltage options.

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