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BQ24259RGER
Product Overview
Category
BQ24259RGER belongs to the category of integrated circuits (ICs) specifically designed for battery charging applications.
Use
This product is primarily used for charging lithium-ion and lithium-polymer batteries in various electronic devices such as smartphones, tablets, portable media players, and other portable electronic devices.
Characteristics
- Integrated charging solution with advanced features
- High efficiency and fast charging capability
- Wide input voltage range for versatile applications
- Multiple protection mechanisms for safe charging
- Compact package for space-constrained designs
Package
BQ24259RGER is available in a small 24-pin VQFN (Very Thin Quad Flat No-Lead) package. This package offers excellent thermal performance and ease of manufacturing.
Essence
The essence of BQ24259RGER lies in its ability to provide a reliable and efficient charging solution for lithium-ion and lithium-polymer batteries, ensuring optimal performance and safety.
Packaging/Quantity
This product is typically supplied in tape and reel packaging, with a quantity of 2500 units per reel.
Specifications
- Input Voltage Range: 3.9V to 14V
- Charging Voltage Range: 3.5V to 4.44V
- Charging Current Range: Up to 2A
- Operating Temperature Range: -40°C to +85°C
- Battery Type Compatibility: Lithium-ion and Lithium-polymer
- Protection Features: Overvoltage, Overcurrent, Overtemperature, Short Circuit
Detailed Pin Configuration
- VIN: Input voltage pin
- GND: Ground reference pin
- TS: Thermal sense pin
- ISET: Charging current setting pin
- STAT: Status indication pin
- PG: Power good indication pin
- CE: Charge enable pin
- SDA: I2C data pin
- SCL: I2C clock pin
- BAT: Battery voltage sense pin
- TS/NTC: Thermistor input pin
- VBUS: USB input voltage sense pin
- INT: Interrupt output pin
- ILIM: Input current limit setting pin
- D+/D-: USB data pins
- SYS: System voltage sense pin
- REGN: Regulator output pin
- VOUT: Output voltage pin
- EN2: Enable 2 pin
- EN1: Enable 1 pin
- PGND: Power ground reference pin
- VREF: Reference voltage pin
- SRN: Serial resistor network pin
- VDD: Supply voltage pin
Functional Features
- Advanced charging algorithms for optimal battery performance
- Automatic detection of battery type and configuration
- Dynamic power management for efficient charging
- Integrated thermal regulation for temperature control
- I2C interface for communication and configuration
- Fault protection mechanisms for safe operation
Advantages and Disadvantages
Advantages
- High charging efficiency leads to reduced charging time
- Wide input voltage range allows compatibility with various power sources
- Comprehensive protection features ensure safe charging
- Compact package enables space-saving designs
- I2C interface provides flexibility in configuration and monitoring
Disadvantages
- Requires additional external components for complete charging solution
- Limited availability of alternative models from other manufacturers
Working Principles
BQ24259RGER operates based on a sophisticated charging algorithm that dynamically adjusts the charging parameters according to the battery's state and characteristics. It utilizes a combination of voltage and current regulation techniques to ensure efficient and safe charging.
The IC continuously monitors the battery voltage, current, and temperature to optimize the charging process. It also incorporates various protection mechanisms to prevent overvoltage, overcurrent, and overheating conditions.
Detailed Application Field Plans
BQ24259RGER finds extensive application in the following fields:
- Mobile devices: Smartphones, tablets, portable media players
- Wearable electronics: Smartwatches, fitness trackers
- Portable gaming consoles
- Wireless headphones and earbuds
- Portable medical devices
- IoT (Internet of Things) devices
Detailed and Complete Alternative Models
While BQ24259RGER is a highly capable charging IC, there are alternative models available from other manufacturers that offer similar functionality. Some notable alternatives include:
- MCP73871 by Microchip Technology
- MAX1555 by Maxim Integrated
- LTC4054 by Linear Technology
- TPS2513 by Texas Instruments
These alternative models provide comparable features and performance, allowing designers to choose the most suitable option for their specific requirements.
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Seznam 10 běžných otázek a odpovědí souvisejících s aplikací BQ24259RGER v technických řešeních
Sure! Here are 10 common questions and answers related to the application of BQ24259RGER in technical solutions:
Q: What is the BQ24259RGER? A: The BQ24259RGER is a highly integrated single-cell Li-Ion battery charger and system power path management device.
Q: What is the input voltage range for the BQ24259RGER? A: The input voltage range is from 3.9V to 6.45V.
Q: What is the maximum charging current supported by the BQ24259RGER? A: The BQ24259RGER supports a maximum charging current of 2A.
Q: Can the BQ24259RGER charge multiple battery chemistries? A: No, the BQ24259RGER is specifically designed for single-cell Li-Ion batteries.
Q: Does the BQ24259RGER have overvoltage protection? A: Yes, the BQ24259RGER has built-in overvoltage protection to prevent damage to the battery.
Q: Can the BQ24259RGER operate while charging the battery? A: Yes, the BQ24259RGER supports simultaneous charging and system operation.
Q: Does the BQ24259RGER have thermal regulation? A: Yes, the BQ24259RGER includes thermal regulation to prevent overheating during charging.
Q: What is the purpose of the system power path management feature in the BQ24259RGER? A: The system power path management feature allows the system to be powered directly from the input source, even if the battery is not present or is deeply discharged.
Q: Can the BQ24259RGER be used in portable devices with USB Type-C connectors? A: Yes, the BQ24259RGER is compatible with USB Type-C connectors and can be used in portable devices that utilize this interface.
Q: Is there any documentation available for designing with the BQ24259RGER? A: Yes, Texas Instruments provides a datasheet and application notes that provide detailed information on designing with the BQ24259RGER.