Datasheet > NCP1855_16

NCP1855_16

更新时间： 2024-11-24 01:20:35

品牌	Logo	应用领域
安森美 - ONSEMI		/
页数	文件大小	规格书
26页	344K
描述
Path Management and USB On-The-Go Support

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NCP1855_16 数据手册

NCP1855

9 V / 2.5 A, 12 V / 2 A, Fully

Integrated Li-Ion Switching

Battery Charger with Power

Path Management and USB

On-The-Go Support

www.onsemi.com

The NCP1855 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 supervisibon. An optional battery FET can be placed

between the system and the battery in order to isolate and supply the

system. The NCP1855 junction temperature is monitored during

charge cycle and both current and voltage can be modified accordingly

MARKING

DIAGRAM

1855

AYWW

25 BUMP

FLIP−CHIP

CASE 499BN

1855 = Specific Device Code

= Assembly Location

= Year

through I C setting. The charger activity and status are reported

through a dedicated pin to the system. The input pin is protected

against overvoltages.

WW = Work Week

G = Pb−Free Package

The NCP1855 also provides USB OTG support by boosting the

battery voltage as well as providing overvoltage protected power

supply for USB transceiver.

ORDERING INFORMATION

See detailed ordering and shipping information in the package

dimensions section on page 25 of this data sheet.

Features

• 2.5 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

• 1000 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

• Silicon Temperature Supervision for Optimized Charge Cycle

• Safety Timers

• Flag Output for Charge Status and Interrupts

• I C 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

Typical Applications

• Smart Phone

• Handheld Devices

• Tablets

• PDAs

Publication Order Number:

January, 2016 − Rev. 0

NCP1855/D

12 3 4 5 6 7...26

中文翻译

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