BQ2014HSNTR

Product Overview

Category: Integrated Circuit (IC)

Use: Battery Fuel Gauge

Characteristics: - Monolithic Li-Ion or Li-Polymer Battery Management System - Accurate measurement of battery charge level - Provides information for remaining capacity estimation - Enables accurate prediction of battery runtime - Supports battery protection and safety features

Package: 16-pin TSSOP (Thin Shrink Small Outline Package)

Essence: The BQ2014HSNTR is a highly integrated IC designed for accurately measuring the charge level of Li-Ion or Li-Polymer batteries. It provides essential information for estimating remaining capacity and predicting battery runtime.

Packaging/Quantity: The BQ2014HSNTR is available in a 16-pin TSSOP package. The quantity may vary depending on the supplier.

Specifications

• Operating Voltage Range: 2.7V to 5.5V
• Temperature Range: -40°C to +85°C
• Communication Interface: I2C (Inter-Integrated Circuit)
• Battery Capacity Measurement Resolution: 1 mAh
• Standby Current: < 10 µA
• Accuracy: ±20 mV (Battery Voltage), ±50 mA (Charge/Discharge Current)

Detailed Pin Configuration

The BQ2014HSNTR has a total of 16 pins, each serving a specific function. The pin configuration is as follows:

1. VSS - Ground
2. SDA - I2C Serial Data Input/Output
3. SCL - I2C Serial Clock Input
4. VDD - Power Supply
5. BAT - Battery Voltage Sense Input
6. TS - Temperature Sense Input
7. SRP - Sense Resistor Positive Terminal
8. SRN - Sense Resistor Negative Terminal
9. VSS - Ground
10. VSS - Ground
11. VSS - Ground
12. VSS - Ground
13. VSS - Ground
14. VSS - Ground
15. VSS - Ground
16. VDD - Power Supply

Functional Features

• Accurate measurement of battery voltage and current
• Temperature sensing for improved accuracy
• I2C interface for easy communication with microcontrollers
• Low standby current for power efficiency
• Overvoltage and undervoltage protection
• Overcurrent protection
• Battery temperature monitoring
• Charge and discharge control

Advantages and Disadvantages

Advantages: - Accurate estimation of remaining battery capacity - Enables precise prediction of battery runtime - Supports battery protection and safety features - Low standby current for power efficiency - Easy integration with microcontrollers through I2C interface

Disadvantages: - Limited to Li-Ion and Li-Polymer battery types - Requires external sense resistor for current measurement

Working Principles

The BQ2014HSNTR works by measuring the battery voltage and current using an internal ADC (Analog-to-Digital Converter). It also incorporates a temperature sensor to compensate for variations in battery performance due to temperature changes. The IC communicates with a microcontroller or host system through the I2C interface, providing accurate battery information for capacity estimation and runtime prediction.

Detailed Application Field Plans

The BQ2014HSNTR is widely used in various applications that require accurate monitoring and management of Li-Ion or Li-Polymer batteries. Some common application fields include:

1. Portable electronic devices (e.g., smartphones, tablets, laptops)
2. Medical devices (e.g., portable medical equipment, patient monitoring systems)
3. Industrial equipment (e.g., handheld tools, wireless sensors)
4. Electric vehicles (e.g., electric bikes, scooters)

Detailed and Complete Alternative Models

1. BQ2012SNTR - Similar functionality with a different pin configuration
2. BQ2013SNTR - Enhanced features for advanced battery management
3. BQ2015SNTR - Higher accuracy and additional safety features

These alternative models offer similar functionality to the BQ2014HSNTR but may have different pin configurations or additional features depending on specific application requirements.

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