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NCP1855: Switching Battery Charger, up to 15.5V Operating Input Voltage

Overview
Specifications
Datasheet: 9 V / 2.5 A, 12 V / 2 A, Fully Integrated Li-Ion Switching Battery Charger
Rev. 0 (338kB)
Product Overview
»View Reliability Data
»View Material Composition
»No Product Change Notifications exist
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 supervision. 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 through I²C setting. The charger activity and status are reported through a dedicated pin to the system. The input pin is protected against overvoltages. The NCP1855 also provides USB OTG support by boosting the battery voltage as well as providing overvoltage protected power supply for USB transceiver.
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
  • I2C Control Bus up to 3.4 MHz
Applications   End Products
  • Single Cell Li-Ion Battery Charger
  • High Efficiency Charging
  • High USB Input Voltage Charging (5V, 9V, 12V standards)
 
  • Smart Phone
  • Handled device
  • Tablet
  • PDA
Technical Documentation & Design Resources
Data Sheets (1) Evaluation Board Documents (5)
Package Drawings (1)  
Evaluation/Development Tool Information
Product Status Compliance Short Description Action
WDK1.0GEVK Active
Wearable Reference Design and Development Kit
Availability and Samples
Product
Status
Compliance
Description
Package
MSL*
Container
Budgetary Price/Unit
Type
Case Outline
Type
Qty.
NCP1855FCCT1G Active
Pb-free
Halide free
Switching Battery Charger, up to 15.5V Operating Input Voltage, Switching battery charger Flip-Chip-25 499BN 1 Tape and Reel 3000 $0.7333
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) : 2 to 4
Digikey   (2017-01-18) : >1K
ON Semiconductor   (2017-01-18) : 840,000
Datasheet: 9 V / 2.5 A, 12 V / 2 A, Fully Integrated Li-Ion Switching Battery Charger
Rev. 0 (338kB)
Product Overview
»View Reliability Data
»View Material Composition
»No Product Change Notifications exist

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, up to 15.5V Operating Input Voltage, Switching battery charger 
Li-Ion/Polymer
1
4
28
5
Flip-Chip-25
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