NCP1851:Switching Battery Charger, 1.6 A, with Power Path Management

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.

技术特性

1.6 A buck converter with integrated pass devices
Input current limiting to comply to USB standard
500mA boosted supply for USB OTG peripherals
Dynamic power path with external battery FET
High accuracy voltage and current regulation
Input over voltage protection up to +28 V
Reverse leakage protection prevents battery discharge
Protected USB Transceiver supply switch
Factory mode
Battery temperature sensing for safe operation (JEITA)
Flag output for charge status and interrupts
IC Control bus up to 3.4 MHz
Safety timers
Silicon temperature supervision for optimized charge cycle

终端产品

Smart Phone
Handheld Devices
PDA
Tablets

应用

High Efficiency Charging Line-up

订购信息 Ordering Information

产品

状况

Compliance

具体说明

封装

MSL*

容器

预算价格 (1千个数量的单价）

类型

外形

类型

数量

NCP1851AFCCT1G

Active

Pb-free

Halide free

Switching Battery Charger, 1.6 A, with Power Path Management

Flip-Chip-25

499BN

Tape and Reel

3000

$0.8

NCP1851FCCT1G

Active, Not Rec