Overview
The Texas Instruments BQ24616RGET is a highly integrated, Japan Electronic Information Technology Association (JEITA) guideline-compatible, Li-ion or Li-polymer switched-mode battery charge controller. This device is designed to offer a constant-frequency synchronous switching PWM controller with high-accuracy charge current and voltage regulation. It supports charging for 1 to 6 battery cells and operates within a 5-V to 28-V VCC input range. The BQ24616RGET is ideal for various battery-powered applications due to its comprehensive set of features, including automatic system power selection, internal loop compensation, and dynamic power management.
Key Specifications
| Parameter | Specification |
|---|---|
| Package | VQFN (RGE) - 24 pins |
| Operating Temperature Range | -40°C to 85°C |
| Input Voltage Range | 5 V to 28 V |
| Number of Battery Cells Supported | 1 to 6 cells |
| Maximum Charge Current | Up to 10 A |
| Charge Voltage Accuracy | ±0.5% |
| Charge Current Accuracy | ±3% |
| Adapter Current Accuracy | ±3% |
| Off-State Battery Discharge Current | < 15 µA |
| Off-State Input Quiescent Current | < 1.5 mA |
Key Features
- Battery Thermistor Sense for JEITA Guideline Compatible Charger
- 600-kHz NMOS-NMOS Synchronous Buck Converter
- Stand-Alone Charger Support for Li-Ion or Li-Polymer Batteries
- High-Accuracy Voltage and Current Regulation
- Automatic System Power Selection From Adapter or Battery
- Internal Loop Compensation and Internal Soft-Start
- Dynamic Power Management
- Safety Protection Features:
- Input Overvoltage Protection
- Battery Detection
- Reverse Protection Input FET
- Programmable Safety Timer
- Charge Overcurrent Protection
- Battery Short Protection
- Battery Overvoltage Protection
- Thermal Shutdown
- Status Outputs: Adapter Present, Charger Operation Status, Charge Enable Pin
- 6-V Gate Drive for Synchronous Buck Converter
- 30-ns Driver Dead-Time and 99.5% Maximum Effective Duty Cycle
- I2C Communication Interface for System Monitoring and Configuration
Applications
The BQ24616RGET is commonly used in a variety of applications, including:
- Portable battery-powered devices
- Industrial instrumentation
- Energy harvesting systems
- Solar-powered equipment
- Medical devices
- Portable instruments and other battery-powered equipment
Q & A
- What is the BQ24616RGET?
The BQ24616RGET is a highly integrated, JEITA guideline-compatible, Li-ion or Li-polymer switched-mode battery charge controller from Texas Instruments.
- What is the input voltage range of the BQ24616RGET?
The input voltage range is 5 V to 28 V.
- How many battery cells can the BQ24616RGET support?
It supports 1 to 6 battery cells.
- What is the maximum charge current of the BQ24616RGET?
The maximum charge current is up to 10 A.
- What safety features does the BQ24616RGET include?
The device includes input overvoltage protection, battery detection, reverse protection input FET, programmable safety timer, charge overcurrent protection, battery short protection, battery overvoltage protection, and thermal shutdown.
- How does the BQ24616RGET manage system power?
The device features automatic system power selection from the adapter or battery and dynamic power management.
- What communication interface does the BQ24616RGET use for system monitoring and configuration?
The device uses an I2C communication interface.
- What is the package type and size of the BQ24616RGET?
The device comes in a 24-pin VQFN (RGE) package with a size of 4 mm x 4 mm.
- What are some common applications of the BQ24616RGET?
Common applications include portable battery-powered devices, industrial instrumentation, energy harvesting systems, and solar-powered equipment.
- What is the operating temperature range of the BQ24616RGET?
The operating temperature range is -40°C to 85°C.
