DS2761BE/T&R

Product Overview

• Category: Integrated Circuit
• Use: Battery Monitor and Gas Gauge
• Characteristics: Accurate voltage, current, and temperature measurement; Non-volatile memory for data storage; Communication interface for data retrieval; Low power consumption
• Package: Tape and Reel (T&R)
• Essence: Monitoring and managing battery performance
• Packaging/Quantity: 2500 units per reel

Specifications

• Voltage Measurement Range: 0V to 5.5V
• Current Measurement Range: -51.2mA to +51.2mA
• Temperature Measurement Range: -40°C to +85°C
• Resolution: 10mV, 20µA, 0.125°C
• Memory Capacity: 2048 bytes
• Communication Interface: I2C
• Operating Voltage: 2.7V to 5.5V
• Power Consumption: 1µA (typical)

Detailed Pin Configuration

The DS2761BE/T&R has the following pin configuration:

1. VDD: Power supply input
2. GND: Ground connection
3. SDA: Serial Data Line for I2C communication
4. SCL: Serial Clock Line for I2C communication
5. ALERT: Interrupt output for battery status changes
6. BAT+: Positive terminal of the battery being monitored
7. BAT-: Negative terminal of the battery being monitored

Functional Features

• Accurate measurement of battery voltage, current, and temperature
• Non-volatile memory for storing battery information
• I2C interface for easy data retrieval
• Low power consumption for extended battery life
• Built-in interrupt output for monitoring battery status changes

Advantages and Disadvantages

Advantages: - Accurate and reliable battery monitoring - Easy integration with existing systems through I2C interface - Low power consumption for extended battery life - Non-volatile memory ensures data retention even during power loss

Disadvantages: - Limited memory capacity for storing additional information - Requires external microcontroller or host system for full functionality

Working Principles

The DS2761BE/T&R operates by continuously measuring the voltage, current, and temperature of the connected battery. It uses an internal ADC (Analog-to-Digital Converter) to convert these analog signals into digital values. The measured data is then stored in its non-volatile memory for later retrieval.

The device communicates with an external microcontroller or host system through the I2C interface, allowing easy access to the stored data. The built-in interrupt output can be used to notify the system of any significant changes in battery status, such as low voltage or high temperature.

Detailed Application Field Plans

The DS2761BE/T&R is widely used in various applications where accurate battery monitoring and management are crucial. Some common application fields include:

1. Portable Electronics: Smartphones, tablets, and wearable devices benefit from precise battery monitoring to optimize performance and extend battery life.
2. Medical Devices: Battery-powered medical equipment requires accurate monitoring to ensure reliable operation and timely replacement.
3. Industrial Equipment: Monitoring batteries in industrial machinery helps prevent unexpected downtime and improves overall efficiency.
4. Automotive Systems: Electric vehicles and hybrid cars rely on battery monitoring to maximize range and ensure safe operation.
5. Renewable Energy Systems: Solar power systems and energy storage solutions utilize battery monitoring for efficient utilization and maintenance.

Detailed and Complete Alternative Models

1. DS2781BE/T&R: Similar to DS2761BE/T&R but with extended memory capacity and additional features.
2. MAX17043G+T: Gas gauge IC with integrated current sensing and fuel gauging algorithms.
3. BQ27441-G1: Battery fuel gauge with integrated protection and authentication features.

These alternative models offer similar functionality to the DS2761BE/T&R and can be considered based on specific application requirements.

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