The DS2740U from Maxim Integrated is an advanced high-precision coulomb counter designed for battery fuel gauging in portable devices. This integrated circuit provides detailed information on battery status, allowing for accurate monitoring of charge and discharge activities to optimize power management in electronic systems.

Key Features

• High Accuracy: The DS2740U offers precise current-sensing capabilities, enabling it to detect minute changes in battery charge levels, ensuring users have reliable data on battery life.
• Low Power Consumption: Designed with power efficiency in mind, this device operates with minimal power draw, which is crucial for extending the operational life of portable devices.
• Wide Voltage Range: It supports a broad range of battery voltages, making it versatile for use in multiple applications with different power requirements.
• Direct-to-Digital Interface: The device features a 1-Wire® interface that allows for simple and direct communication with microcontrollers, reducing the complexity of system design.
• On-Chip Temperature Sensor: An integrated temperature sensor provides additional monitoring capabilities, which can be critical for battery performance and safety.
• Nonvolatile (NV) Memory: Onboard NV memory ensures that important data such as calibration constants and battery history are preserved even when the power is removed.

Applications

The DS2740U is ideal for a wide range of applications, including:

• Portable consumer electronics
• Handheld medical devices
• Battery backup systems
• Electric and hybrid electric vehicles

Technical Specifications

Some of the technical specifications of the DS2740U include:

• Operating Voltage Range: 2.7V to 4.5V
• Operating Temperature Range: -20°C to +70°C
• High-Side Current Sensing
• 16-Bit Current and Voltage Measurement
• 1-Wire Interface for Easy Communication

With the DS2740U, Maxim Integrated continues to push the boundaries of power management technology, offering designers a robust and flexible solution for battery monitoring in portable devices.