feedback
Rate this webpage

Need
Support?


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

Overview
Specifications
Packages
Applications
Datasheet: Fully Integrated Li-Ion Switching Battery Charger with Power Path Management
Rev. 6 (550.0kB)
»View Material Composition
»Product Change Notification (5)
Product Overview
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
 
  • 1.6 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
Applications   End Products
  • High Efficiency Charging Line-up
 
  • Smart Phone
  • Handheld Devices
  • PDA
  • Tablets
Technical Documentation & Design Resources
Data Sheets (1) Package Drawings (1)
Availability and Samples
Product
Status
Compliance
Description
Package
MSL*
Container
Budgetary Price/Unit
Type
Case Outline
Type
Qty.
NCP1851AFCCT1G Active
Pb-free
Halide free
Switching Battery Charger, 1.6 A, with Power Path Management Flip-Chip-25 499BN 1 Tape and Reel 3000 $0.7333
NCP1851FCCT1G Last Shipments
Pb-free
Halide free
Switching Battery Charger, 1.6 A, with Power Path Management Flip-Chip-25 499BN 1 Tape and Reel 3000  
Moisture Sensitivity level (MSL) for surface mount devices (lead free measured at 260°C reflow, non lead free at 235°C reflow)
Market Leadtime (weeks) : 4 to 8
Digikey   (2016-05-26 00:00) : >1K
Mouser   (2016-05-26 00:00) : >1K
Market Leadtime (weeks) : Contact Factory
Datasheet: Fully Integrated Li-Ion Switching Battery Charger with Power Path Management
Rev. 6 (550.0kB)
»View Material Composition
»Product Change Notification (5)
Product Overview

Product Compliance Status Description Type Number of Cells Charged VCC Min (V) VCC Max (V) ID Max (µA) Package Type
Pb-free
Halide free
 Active     Switching Battery Charger, 1.6 A, with Power Path Management  
Li-Ion/Polymer
1
3.6
28
5
Flip-Chip-25
Previously Viewed Products
Clear List

Associated Products
  Do you also need Battery Fuel Gauges?
Do you also need Voltage Protection?