Datasheet Texas Instruments BQ24278 — 数据表

Not Recommended For New Designs bq24278
www.ti.com SLUSB04 – JUNE 2012 2.5A, Single Input, Single Cell Switchmode Li-Ion BATTERY CHARGER with Power Path
Management
Check for Samples: bq24278 FEATURES 1 High-Efficiency Switch Mode Charger with
Separate Power Path Control
– Instantly Startup System from a Deeply
Discharged Battery or No Battery
20V input rating, with 10.5V Over-Voltage
Protection (OVP)
Integrated FETs for Up to 2.5A Charge Rate
Highly Integrated Battery N-Channel MOSFET
Controller for Power Path Management
Safe and accurate Battery Management
Functions
– 0.5% Battery Regulation Accuracy
– 10% Charge Current Accuracy
Voltage-based, NTC Monitoring Input (TS)
– Standard Temp Range Thermal Regulation Protection for Output
Current Control
Low Battery Leakage Current, BAT ShortCircuit Protection
Soft-Start feature to reduce inrush current
Thermal Shutdown and Protection
Available in small 49-ball WCSP or QFN-24 …