BQ27741YZFT-G1

Product Overview

Category

The BQ27741YZFT-G1 belongs to the category of integrated circuits (ICs) specifically designed for battery management systems.

Use

This product is primarily used for monitoring and controlling the charging and discharging processes of rechargeable batteries. It provides accurate measurements of battery parameters, such as voltage, current, and temperature, ensuring optimal performance and safety.

Characteristics

• High precision: The BQ27741YZFT-G1 offers precise measurement capabilities, enabling accurate monitoring of battery parameters.
• Low power consumption: This IC is designed to minimize power consumption, making it suitable for energy-efficient applications.
• Compact package: The BQ27741YZFT-G1 comes in a small form factor, allowing for easy integration into various battery-powered devices.
• Advanced protection features: It incorporates advanced protection mechanisms to prevent overcharging, over-discharging, and overheating of batteries.

Package and Quantity

The BQ27741YZFT-G1 is available in a compact surface-mount package. Each package contains one unit of the IC.

Specifications

• Operating Voltage: 2.7V to 4.8V
• Operating Temperature Range: -40°C to +85°C
• Communication Interface: I2C
• Battery Capacity Measurement Accuracy: ±1%
• Current Measurement Accuracy: ±0.5%
• Voltage Measurement Accuracy: ±10mV

Pin Configuration

The BQ27741YZFT-G1 features a total of 16 pins. The detailed pin configuration is as follows:

| Pin Number | Pin Name | Function | |------------|----------|----------| | 1 | VSS | Ground | | 2 | SDA | I2C Data | | 3 | SCL | I2C Clock| | 4 | VDD | Power Supply | | 5-8 | NC | Not Connected | | 9 | TS | Temperature Sense | | 10 | BAT | Battery Voltage | | 11 | CC | Charge Current | | 12 | VSS | Ground | | 13 | VSS | Ground | | 14 | VSS | Ground | | 15 | VSS | Ground | | 16 | VSS | Ground |

Functional Features

The BQ27741YZFT-G1 offers the following functional features: - Accurate battery capacity measurement - Real-time monitoring of battery voltage and current - Temperature sensing for thermal management - Overcharge and over-discharge protection - Integrated fuel gauge algorithm for accurate state-of-charge estimation - Low-power sleep mode for energy efficiency

Advantages and Disadvantages

Advantages: - High precision measurements ensure accurate battery monitoring. - Advanced protection mechanisms safeguard batteries from damage. - Compact package allows for easy integration into various devices. - Low power consumption prolongs battery life.

Disadvantages: - Limited compatibility with certain battery chemistries. - Requires I2C communication interface for configuration and data retrieval.

Working Principles

The BQ27741YZFT-G1 operates by continuously monitoring the battery voltage, current, and temperature. It utilizes an integrated fuel gauge algorithm to estimate the state-of-charge accurately. The IC communicates with the host device through the I2C interface, providing real-time battery information and enabling control over charging and discharging processes.

Application Field Plans

The BQ27741YZFT-G1 is widely used in various applications, including: - Portable electronic devices (e.g., smartphones, tablets) - Wearable devices (e.g., smartwatches, fitness trackers) - Medical devices - Industrial equipment - Electric vehicles

Alternative Models

For those seeking alternative options, the following models offer similar functionality to the BQ27741YZFT-G1: - BQ27541-G1 - BQ27441-G1 - BQ27641-G1

These models provide comparable features and can be considered as alternatives based on specific application requirements.

In conclusion, the BQ27741YZFT-G1 is a highly reliable integrated circuit designed for battery management systems. Its accurate measurements, advanced protection features, and compact package make it an ideal choice for various battery-powered applications.

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