Overview
The BQ24600RVAR from Texas Instruments is a highly integrated Li-ion or Li-polymer switch-mode battery-charge controller. It features a constant-frequency synchronous PWM controller with high-accuracy charge current and voltage regulation. The device supports charging in three phases: preconditioning, constant current, and constant voltage. It also includes charge preconditioning, termination, and charge status monitoring. The BQ24600RVAR is designed to ensure safe and efficient charging of Li-ion or Li-polymer batteries, making it suitable for a variety of applications including portable equipment, industrial and medical devices, power tools, and mobile internet devices.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| VCC Input Voltage Range | 5 - 28 | V |
| Supported Battery Cells | 1S - 6S | - |
| Maximum Charge Current | Up to 10 A | A |
| Maximum Adapter Current | Up to 10 A | A |
| Charge-Voltage Accuracy | ±0.5% | - |
| Charge-Current Accuracy | ±3% | - |
| Operating Temperature Range | -40°C to 85°C | °C |
| Package Type | 16-Pin 3.5-mm × 3.5-mm QFN | - |
| Off-State Battery Discharge Current | < 15 µA | µA |
| Off-State Input Quiescent Current | < 1.5 mA | mA |
Key Features
- 1.2-MHz NMOS-NMOS Synchronous Buck Converter
- Stand-Alone Charger Support for Li-Ion or Li-Polymer Batteries
- Internal Loop Compensation and Internal Soft Start
- High-Accuracy Voltage and Current Regulation
- Safety Features: Input Overvoltage Protection, Battery Thermistor Sense, Battery Detection, Built-In Safety Timer, Charge Overcurrent Protection, Battery Short Protection, Battery Overvoltage Protection, and Thermal Shutdown
- Status Outputs: Adapter Present, Charger Operation Status, and Charge Enable Pin
- 6-V Gate Drive for Synchronous Power Converter with 30-ns Driver Dead-Time and 99.5% Max. Effective Duty Cycle
- Energy Star Low Quiescent Current
Applications
- Portable Equipment
- Industrial and Medical Equipment
- Power Tools
- Mobile Internet Devices and Ultra-Mobile PCs
Q & A
- What is the BQ24600RVAR used for?
The BQ24600RVAR is used as a standalone switch-mode battery charge controller for Li-ion or Li-polymer batteries.
- What is the input voltage range of the BQ24600RVAR?
The input voltage range is from 5 V to 28 V.
- What is the maximum charge current supported by the BQ24600RVAR?
The maximum charge current is up to 10 A.
- What safety features does the BQ24600RVAR include?
The device includes input overvoltage protection, battery thermistor sense, battery detection, built-in safety timer, charge overcurrent protection, battery short protection, battery overvoltage protection, and thermal shutdown.
- What is the operating temperature range of the BQ24600RVAR?
The operating temperature range is from -40°C to 85°C.
- What type of package does the BQ24600RVAR come in?
The device comes in a 16-Pin 3.5-mm × 3.5-mm QFN package.
- Does the BQ24600RVAR support multiple battery cells?
Yes, it supports 1S to 6S battery cells.
- What is the accuracy of the charge voltage regulation?
The charge voltage accuracy is ±0.5%.
- What is the accuracy of the charge current regulation?
The charge current accuracy is ±3%.
- Does the BQ24600RVAR have low quiescent current features?
Yes, it has low quiescent current features, including off-state battery discharge current of less than 15 µA and off-state input quiescent current of less than 1.5 mA.
