Datasheet Batt ery Charger IC Series Boost DC/DC Charger With Input Current Limiter BD8664GW BD8665GW BD8668GW General Description Key Specifications Input Current Accuracy 2%(BD8664GW) BD8664GW, BD8665GW and BD8668GW are lithium-ion 3%(BD8665GW/BD8668GW) battery charger ICs, suitable for charging 2S batteries Charging Voltage Accuracy 0.5% from a 5V source, such as a USB port with DC/DC boost Selectable Input Current topology. 100mA/500mA/900mA/1500mA (max) Charging frequency 1MHz (typ) Features Input Standby Current 71 A(typ) CP/CV Charging battery leakage current while charging is off 0A(typ) Charge-On/ Off control available with EN pin Integrated Input Detection (VBUSOK) Package W(Typ) x D(Typ) x H(Max) Integrated Power Good Boost Switching Topology UCSP75M2 2.20mm x 2.20mm x 0.85mm Low Ron integrated MOSFET Output Short Circuit Protection Line Up 0.4mm pitch Chip Scale Package (UCSP75M2) Charge Pin Orderable Package Voltage number Part Number Applications 8.30V BD8664GW 20 DVC, DSC, MID and other Lithium battery-powered USCP75M2 BD8665GW 8.40V portable devices 25 BD8668GW Typical Application Circuit VBUS+ OVP VBUS ISNS D+ BC1.2 ICOMP Detector VBUSLIM D- VCOMP FSET SW1 BD8664GW SDA EN BD8665GW SCL ISETIN1 BD8668GW ISETIN2 SW2 ISETIN3 ACLEN HOST VFB SYSTEM PGOOD VBUSOK Controled by HOST ISETOUT1 FSET BATTERY+ ISETOUT2 GND PGND Figure 1. Typical Application Circuit Product structure : Silicon monolithic integrated circuit This product has no designed protection against radioactive rays TSZ02201-0A1A0AZ00130-1-2 2015 ROHM Co., Ltd. All rights reserved. 1 32 / TSZ2211114001 7.Jul.2015 Rev.002 BD8664GW BD8665GW BD8668GW Contents General Description ...................................................................................................................................................................... 1 Features ......................................................................................................................................................................................... 1 Applications .................................................................................................................................................................................. 1 Key Specifications ........................................................................................................................................................................ 1 Package W(Typ) x D(Typ) x H(Max) ................................................................................................................................. 1 Line Up........................................................................................................................................................................................... 1 Typical Application Circuit ........................................................................................................................................................... 1 Pin Configuration (TOP VIEW) ..................................................................................................................................................... 3 Pin Description ............................................................................................................................................................................. 3 Block Diagram ............................................................................................................................................................................... 5 Absolute Maximum Ratings (Ta=25C) ....................................................................................................................................... 6 Recommended Operating Conditions (Ta=-30 to +85C) ........................................................................................................... 6 Electrical Characteristics ............................................................................................................................................................. 7 Typical Performance Curves ........................................................................................................................................................ 9 Reference Data ............................................................................................................................................................................ 14 Block Descriptions ..................................................................................................................................................................... 16 Timing Chart/Application Information ....................................................................................................................................... 18 Application Components Selection ........................................................................................................................................... 21 Example of Recommended Circuit ............................................................................................................................................ 22 Input/Output Pin Immediate Circuit ........................................................................................................................................... 23 Thermal Reduction Characteristics .......................................................................................................................................... 25 Operational Notes ....................................................................................................................................................................... 26 Ordering Information .................................................................................................................................................................. 28 Marking Diagrams ....................................................................................................................................................................... 28 Physical Dimensions, Tape and Reel information ................................................................................................................... 29 Revision History ......................................................................................................................................................................... 32 TSZ02201-0A1A0AZ00130-1-2 2015 ROHM Co., Ltd. All rights reserved. 2 32 / TSZ2211115001 7.Jul.2015 Rev.002