Datasheet Texas Instruments BQ24351DSGT — 数据表

bq24351
www.ti.com SLUSA62A – OCTOBER 2010 – REVISED NOVEMBER 2010 Over-Voltage and Over-Current Charger
Protection IC With Integrated Charging FET and LDO Mode
Check for Samples: bq24351 FEATURES 1 2 Robust Protection
– Input Over-Voltage Protection
– Input Over-Current Protection
– Accurate Battery Over-Voltage Protection
– Thermal Shutdown
– Output Short-Circuit Protection
Integrated Charging FET
10.5V Over-Voltage Protection
LDO Mode Operation
– 6.38V Output Voltage Regulation
Current Limited Power Supply for Host Controller
Soft-Start to Prevent Inrush Currents
Soft-Stop to Prevent Voltage Spikes
30V Maximum Input Voltage
Supports Up to 1A Load Current
Small 2mm Г— 2mm 8pin SON Package APPLICATIONS Mobile Phones
Low-Power Handheld Devices DESCRIPTION
The bq24351 is a highly integrated circuit designed to provide protection to Li-ion batteries from failures of the
charging circuit. The IC continuously monitors the input voltage and the battery voltage. In case of an input
over-voltage condition, the IC will turn off the internal power FET after a blanking time. If the battery voltage rises …