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NCP1851AFCCT1G Datasheet(PDF) 1 Page - ON Semiconductor |
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NCP1851AFCCT1G Datasheet(HTML) 1 Page - ON Semiconductor |
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1 / 31 page  © Semiconductor Components Industries, LLC, 2013 March, 2013 − Rev. 6 1 Publication Order Number: NCP1851/D NCP1851, NCP1851A Fully Integrated Li-Ion Switching Battery Charger with Power Path Management and USB On-The-Go Support The NCP1851 is a fully programmable single cell Lithium−ion switching battery charger optimized for charging from a USB compliant input supply and AC adaptor power source. The device integrates a synchronous PWM controller, power MOSFETs, and the entire charge cycle monitoring including safety features under software supervision. An optional battery FET can be placed between the system and the battery in order to isolate and supply the system. The NCP1851 junction temperature and battery temperature are monitored during charge cycle, and both current and voltage can be modified accordingly through I2C setting. The charger activity and status are reported through a dedicated pin to the system. The input pin is protected against overvoltages. The NCP1851 also provides USB OTG support by boosting the battery voltage as well as providing overvoltage protected power supply for USB transceiver. Features • 1.6 A Buck Converter with Integrated Pass Devices • Input Current Limiting to Comply to USB Standard • Automatic Charge Current for AC Adaptor Charging • High Accuracy Voltage and Current Regulation • Input Overvoltage Protection up to +28 V • Factory Mode • 500 mA Boosted Supply for USB OTG Peripherals • Reverse Leakage Protection Prevents Battery Discharge • Protected USB Transceiver Supply Switch • Dynamic Power Path with Optional Battery FET • Battery Temperature Sensing for Safe Operation (JEITA) • Silicon Temperature Supervision for Optimized Charge Cycle • Safety Timers • Flag Output for Charge Status and Interrupts • I2C Control Bus up to 3.4 MHz • Small Footprint 2.2 x 2.55 mm CSP Package • These Devices are Pb−Free and are RoHS Compliant Applications • Smart Phone • Handheld Devices • Tablets • PDAs MARKING DIAGRAM http://onsemi.com See detailed ordering and shipping information in the package dimensions section on page 30 of this data sheet. ORDERING INFORMATION 25 BUMP FLIP−CHIP CASE 499BN XXXX = Specific Device Code A = Assembly Location Y = Year WW = Work Week G or G = Pb−Free Package XXXX AYWW G *Pb−Free indicator, “G” or microdot “ G”, may or may not be present. |
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