1 to 4-Cell Li-Ion Battery Manager For Application Processors BD99954MWV, BD99954GW General Description Voltage Measurement for Thermistor. BD99954 is a Battery Management LSI for 1-4 cell Bias voltage output for the external thermistor. Lithium-Ion secondary battery, and available in a 40pin 0.40 mm pitch 5.0 mm x 5.0 mm QFN package and small SMBus Interface (Clock up friendly I2C) for Host 41-ball 0.4mm pitch 2.6mm x 3.0mm Wafer-Level CSP communication package which is designed to meet high degree demands for space-constraint equipment such as Low profile Notebook PC, Tablets and other applications. Embedded OTPROM for initial settings BD99954 provides a Dual-source Battery Charger, two Packages port BC1.2 detection and a Battery Monitor with several alarm(INT , PROCHOT ) outputs Pitch W x D x H UQFN040V5050 0.4mm 5.0mm x 5.0mm x 1.0mm Features UCSP55M3C 0.4mm 2.6mm x 3.0mm x 0.62mm 6 x 7balls Dual-source Battery Charger High efficiency Step-Up/Down switching charger for 1-4 cell Li-Ion/Li-poly battery Two separate input sources for USB-VBUS and DC adapter. Two port BC1.2 detectors. JEITA compliant charging profile Programmable parameters for Preconditioning, Pre- charge current, and Fast-charge current UQFN040V5050 UCSP55M3C Programmable charging voltage Programmable charge current Programmable Switching Frequency: 600kHz to Applications 1.2MHz Ultrabook Support USB BCS 1.2, ACA, ID pin, OTG Notebook PC USB-VBUS Over Voltage Protection Ultra-mobile PC Over Voltage Battery Protection Tablet PC Battery Short Circuit Detection Power Path Management with charge pump gate driver Structure Flexibility power path control Silicon Monolithic Integrated Circuit Reverse Buck/Boost Option for USB/USB-PD Bias voltage output for the external thermistor Line up matrix PMON output Parts No. Package PROCHOT output BD99954MWV UQFN040V5050 Support Inhibit / Autonomous Charging Battery Learn Function BD99954GW UCSP55M3C Input Operating Range: 3.8V to 25V * Product structure: Silicon monolithic integrated circuit. ** This product is not designed to protect against radioactive rays. Copyright: 2017 ROHM Co., Ltd. All rights reserved. TSZ02201-0B4B0A700040-1-2 Datasheet BD99954MWV, BD99954GW Contents Notation .................................................................................................................................................................... 3 Reference ................................................................................................................................................................. 3 1. INTRODUCTION ................................................................................................................. 4 2. SIGNAL DESCRIPTION ...................................................................................................... 5 3. PIN CONFIGURATION ........................................................................................................ 6 4. ABSOLUTE MAXIMUM RATING ........................................................................................ 7 (NOTE 1) 5. THERMAL RESISTANCE ........................................................................................ 7 6. RECOMMENDED OPERATING CONDITION ..................................................................... 7 7. FUNCTION DESCRIPTIONS ............................................................................................... 8 7.1. Block Diagram ............................................................................................................................................ 8 7.2. External Characteristics for Battery Charger .......................................................................................... 9 7.3. DC Input & Over Voltage Protection (OVP) ............................................................................................ 10 7.4. USB Detection ........................................................................................................................................... 11 7.5. DC/DC Converter ...................................................................................................................................... 12 7.6. Charger ...................................................................................................................................................... 14 7.7. Reverse DC/DC Converter ....................................................................................................................... 16 7.8. 12-bit ADC ................................................................................................................................................. 17 7.9. Power On ................................................................................................................................................... 18 8. CONTROL SPECIFICATION ............................................................................................. 20 8.1. SMBus Communication ........................................................................................................................... 20 8.2. SMBus Protocols ...................................................................................................................................... 20 8.3. Command Code ........................................................................................................................................ 22 8.4. Battery Charger Commands Description ............................................................................................... 26 8.5. Extended Commands Description .......................................................................................................... 29 8.6. Resister Default Value ............................................................................................................................ 115 9. I/O EQUIVALENT CIRCUIT DIAGRAM .......................................................................... 118 10. ORDERING INFORMATION ............................................................................................ 121 11. MARKING DIAGRAMS ................................................................................................... 121 12. PHYSICAL DIMENSION TAPE AND REEL INFORMATION .......................................... 122 13. OPERATIONAL NOTES .................................................................................................. 124 * Product structure: Silicon monolithic integrated circuit. ** This product is not designed to protect against radioactive rays. Copyright: 2017 ROHM Co., Ltd. All rights reserved. TSZ02201-0B4B0A700040-1-2