Datasheet > NCP1855

NCP1855

更新时间： 2024-11-27 01:17:51

品牌	Logo	应用领域
安森美 - ONSEMI		电池
页数	文件大小	规格书
26页	341K
描述
Fully Integrated Li-Ion Switching Battery Charger

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NCP1855 数据手册

NCP1855

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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

http://onsemi.com

MARKING

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

DIAGRAM

1855

AYWW

25 BUMP

FLIP−CHIP

CASE 499BN

1855 = Specific Device Code

= Assembly Location

= Year

WW = Work Week

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.

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

This document contains information on a product under development. ON Semiconductor

reserves the right to change or discontinue this product without notice.

Publication Order Number:

August, 2014 − Rev. P1

NCP1855/D

12 3 4 5 6 7...26

中文翻译

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与NCP1855相关器件

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NCP1855_16	ONSEMI	获取价格	Path Management and USB On-The-Go Support
NCP1855FCCT1G	ONSEMI	获取价格	Fully Integrated Li-Ion Switching Battery Charger
NCP186	ONSEMI	获取价格	Fast Transient Response Low Voltage 1 A LDO
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NCP186AMX120TAG	ONSEMI	获取价格	Fast Transient Response Low Voltage 1 A LDO
NCP186AMX150TAG	ONSEMI	获取价格	LDO 稳压器，1 A，超低漏，高 PSRR，带启用
NCP186AMX175TAG	ONSEMI	获取价格	Fast Transient Response Low Voltage 1 A LDO
NCP186AMX180TAG	ONSEMI	获取价格	Fast Transient Response Low Voltage 1 A LDO
NCP186AMX185TAG	ONSEMI	获取价格	Fast Transient Response Low Voltage 1 A LDO
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