Integrated battery charging ICs from Texas Instruments intended for use with Lithium-Ion & Lithium-Polymer cells. These devices provide a complete charging and monitoring solution and include internal power devices capable of supplying charging currents of up to several amps.
Feature
- High Efficiency Switch Mode Charger
- 2.5-A (bq24195L) or 4.5-A (bq24195) Fast Charging
- 92% Charge Efficiency at 2 A, 90% at 4 A
- Synchronous Boost Converter in Battery Boost Mode
- 5.1 V at 1 A (bq24195L) or 5.1 V at 2.1 A (bq24195)
- 94% 5.1-V Boost Efficiency at 1 A, 91% at 2.1 A
- Highest Battery Discharge Efficiency with 12-mΩ
Battery Discharge MOSFET up to 9-A Discharge Current - Single Input USB-compliant/Adapter Charger
- USB Host or Charging Port D+/D- Detection Compatible
to USB Battery Charger Spec 1.2 - Input Voltage and Current Limit Supports USB2.0 and USB3.0
- Input Current Limit: 100 mA, 150 mA, 500 mA, 900 mA, 1.2 A,
1.5 A, 2 A and 3 A
- USB Host or Charging Port D+/D- Detection Compatible
- 3.9-V to 17-V Input Operating Voltage Range
- Support All Kinds of Adapter with Input Voltage DPM
Regulation
- Support All Kinds of Adapter with Input Voltage DPM
- Narrow VDC (NVDC) Power Path Management
- Instant-on Works with No Battery or Deeply Discharged
Battery - Ideal Diode Operation in Battery Supplement Mode
- Instant-on Works with No Battery or Deeply Discharged
- 1.5-MHz Switching Frequency for Low Profile Inductor
- Autonomous Battery Charging with or without Host
Management- Battery Charge Enable
- Battery Charge Preconditioning
- Charge Termination and Recharge
- High Accuracy (0°C to 125°C)
- ±0.5% Charge Voltage Regulation
- ±7% Charge Current Regulation
- ±7.5% Input Current Regulation
- ±2% Output Regulation in Boost Mode
- High Integration
- Power Path Management
- Synchronous Switching MOSFETs
- Integrated Current Sensing
- Bootstrap Diode
- Internal Loop Compensation
- Safety
- Battery Temperature Sensing and Charging Safety Timer
- Thermal Regulation and Thermal Shutdown
- Input System Over-Voltage Protection
- MOSFET Over-Current Protection
- Charge Status Outputs for LED or Host Processor
- Low Battery Leakage Current and Support Shipping Mode
- 4.00 mm × 4.00 mm QFN-24 Package
