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BQ24050DSQRTIN/a21avai1A, Single-Input, Single Cell Li-Ion Battery Charger with Automatic AC/USB Detection. | Linear 10-WSON


BQ24050DSQR ,1A, Single-Input, Single Cell Li-Ion Battery Charger with Automatic AC/USB Detection. | Linear 10-WSON Features 3 DescriptionThe bq2405x series of devices are highly integrated1• ChargingLi-Ion and Li-P ..
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BQ24060DRCRG4 , 1A SINGLE-CHIP Li-Ion/Li-Pol CHARGE MANAGEMENT IC WITH THERMAL REGULATION
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BQ24050DSQR
800mA, Single-Input, Single Cell Li-Ion Battery Charger with Automatic AC/USB Detection. | Linear
Sample & Support & Reference Product Tools & Technical Community Buy Design Folder Documents Software bq24050, bq24052, bq24055 SLUS940C – SEPTEMBER 2009 – REVISED DECEMBER 2014 bq2405x 1-A, Single-Cell Li-Ion and Li-Pol Battery Charger With Automatic Adaptor and USB Detection 1 Features 3 Description The bq2405x series of devices are highly integrated 1• Charging Li-Ion and Li-Pol linear chargers devices targeted at – 1% Charge Voltage Accuracy space-limited portable applications. The devices – 10% Charge Current Accuracy operate from either a USB port or AC adapter. The high-input voltage range with input overvoltage – Pin Selectable USB 100-mA and 500-mA protection supports low-cost unregulated adapters. Maximum Input Current Limit The bq2405x has a single power output that charges – Programmable Termination and Precharge the battery. A system load can be placed in parallel Threshold with the battery as long as the average system load • Protection does not keep the battery from charging fully during – 30-V Input Rating; With 6.6-V Input the 10-hour safety timer. Overvoltage Protection The battery is charged in three phases: conditioning, – Input Voltage Dynamic Power Management constant current, and constant voltage. In all charge – 125 °C Thermal Regulation; 150°C Thermal phases, an internal control loop monitors the IC Shutdown Protection junction temperature and reduces the charge current if an internal temperature threshold is exceeded. – OUT Short-Circuit Protection and ISET Short Detection The charger power stage and charge current sense functions are fully integrated. The charger function – Operation Over JEITA Range Through Battery has high accuracy current and voltage regulation NTC - ½ Fast-Charge-Current at Cold, 4.06 V loops, charge status display, and charge termination. at Hot The precharge current and termination current – Fixed 10-Hour Safety Timer threshold are programmed through an external • System resistor. The fast charge current value is also programmable through an external resistor. – Auto Input Source Detection (D+, D– Pins) – No Device Transceiver Required (1) Device Information – USB Friendly PART NUMBER PACKAGE BODY SIZE (NOM) – Automatic Termination and Timer Disable bq24050 WSON (10) 2.00 mm × 2.00 mm Mode (TTDM) for Absent Battery Pack With bq24052 Thermistor bq24055 WSON (12) 2.00 mm × 3.00 mm – Status Indication – Charging/Done (1) For all available packages, see the orderable addendum at – Available in Small 2-mm × 2-mm or the end of the datasheet. 2-mm × 3-mm Package Simplified Circuit bq24050/2 2 Applications Adaptor DC+ 1 IN 10 System Load OUT 1.5kW • Smart Phones Battery Pack GND 2 ISET 9 TS + • PDAs 3 VSS CHG 8 1mF 1kW 1mF • MP3 Players 4 PRETERM 7 ISET2 OR 5 6 • Low-Power Handheld Devices D+ D- VDD 2kW TTDM USB Port ISET/100/500 mA VBUS GND GND D+ D+ D- Host D- Disconnect after Detection 1 An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications, intellectual property matters and other important disclaimers. PRODUCTION DATA.
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