bq24072T
bq24072T is 1.5A USB-Friendly Li-Ion Battery Charger and Power-Path Management IC manufactured by Texas Instruments.
ures
- 1 Fully pliant USB Charger
- Selectable 100m A and 500m A Maximum Input
Current
- 100m A Maximum Current Limit Ensures pliance to USB-IF Standard
- Input based Dynamic Power Management (VIN-
DPM) for Protection Against Poor USB Sources
- 28V Input Rating with Over-voltage Protection
- Integrated Dynamic Power Path Management
(DPPM) Function Simultaneously and Independently Powers the System and Charges the Battery
- System Output Tracks Battery Voltage (bq24072T)
- Supports up to 1.5A Charge Current with Current Monitoring Output (ISET)
- Programmable Input Current Limit up to 1.5A for Wall Adapters
- Battery Disconnect Function with SYSOFF Input
- Reverse Current, Short-Circuit and Thermal Protection
- Flexible Voltage Based NTC Thermistor Input
- Proprietary Start Up Sequence Limits Inrush Current
- Status Indication
- Charging/Done, Power Good
- Small 3 mm × 3 mm 16 Lead VQFN Package
2 Applications
- Smart Phones
- PDAs
- MP3 Players
- Low-Power Handheld Devices
3 Description
The bq2407x T series of devices are integrated Li-ion linear chargers and system power path management devices targeted at space-limited portable applications. The devices operate from either a USB port or AC adapter and support charge currents up to 1.5A. The input voltage range with input over-voltage protection supports unregulated adapters. The USB input current limit accuracy and start up sequence allow the bq2407x T to meet USB-IF inrush current specification. Additionally, the input dynamic power management (VIN
- DPM) prevents the charger from crashing incorrectly configure USB sources.
Device Information(1)
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