NCP1851FCCT1G Datasheet, PDF (1/2 Pages) ON Semiconductor – Smallest 1.6A High Innovation Switching Battery Charger

Product Overview
NCP1851: Smallest 1.6A High Innovation Switching Battery Charger
For complete documentation, see the data sheet
Product Description
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.
Features
• 1.6A 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 +28V
• Reverse leakage protection prevents battery discharge
• Protected USB Transceiver supply switch
• Factory mode
• Battery temperature sensing for safe operation (JEITA)
Applications
• High Efficiency Charging Line-up
End Products
• Smart Phone
• Handheld Devices
• PDA
• Tablets
Part Electrical Specifications
Product
NCP1851FCCT1G
Compliance Status
Pb-free
Halide free
NEW
Type
Number of
V_CC Min (V)
Cells Charged
Li-Ion/Polymer 1
3.6
V_CC Max (V) I_D Max (uA)
28
5
Features
Package Type
Max. Charge Flip-Chip-25
Current 1.6A