Texas Instruments bq25601/bq25601D Single Cell 3A Battery Charger
Texas Instruments bq25601/bq25601D Single Cell 3A Battery Chargers are highly-integrated 3A switch-mode battery charge management and system power path management devices. Each device is designed for single-cell Li-Ion and Li-polymer batteries. The low impedance power path optimizes the switch-mode operation efficiency, reduces the battery charging time, and extends battery life during discharging phase. The I2C serial interface with charging and system settings makes the device a truly flexible solution.
The Texas Instruments bq25601/bq25601D features fast charging with high input voltage support for a wide range of smartphones, tablets, and portable devices. The input voltage and current regulation deliver maximum charging power to the battery. These devices are highly integrated with input reverse-blocking FET and high-side switching FET. This solution also includes a low-side switching FET and a battery FET between the system and battery. The device integrates the bootstrap diode for the high-side gate drive for a simplified system design.
Features
- High-efficiency, 1.5MHz, synchronous switch-mode buck charger
- 92% charge efficiency at 2A from 5V input
- Optimized for USB voltage input (5V)
- Selectable low power Pulse Frequency Modulation (PFM) mode for light load operations
- Supports USB On-The-Go (OTG)
- Boost converter with up to 1.2A output
- 92% boost efficiency at 1A output
- Accurate Constant Current (CC) limit
- Soft-start up to 500µF capacitive load
- Output short circuit protection
- Selectable low power PFM mode for light load operations
- Single input to support USB input and high voltage adapters
- Support 3.9V to 13.5V input voltage range with 22V absolute maximum input voltage rating
- Programmable input current limit (100mA to 3.2A with 100mA resolution) to support USB 2.0, USB 3.0 standards, and high voltage adaptors (IINDPM)
- Maximum power tracking by input voltage limit Up to 5.4V (VINDPM)
- VINDPM threshold automatically tracks battery voltage
- Auto-detect USB SDP, DCP, and non-standard adaptors
- High battery discharge efficiency with 19.5mΩ battery discharge MOSFET
- Narrow VDC (NVDC) power path management
- Instant-on works with no battery or deeply discharged battery
- Ideal diode operation in battery supplement mode
- BATFET control to support ship mode, wake up, and full system reset
- Flexible autonomous and I2C mode for optimal system performance
- High integration includes all MOSFETs, current sensing, and loop compensation
- High accuracy
- ±0.5% charge voltage regulation
- ±5% at 1.5A charge current regulation
Applications
- Smartphones
- Portable internet devices and accessory
Datasheets
Simplified Applications
Related Development Tool
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