ACT8600QJ601-T Active-Semi

ACT8600 Rev 4, 10-Sep-14 Advanced PMU for Ingenic JZ4760/60B/70 Processors FEATURES GENERAL DESCRIPTION The ACT8600 is a complete, cost effective, highly- Optimized for Ingenic JZ4760, JZ4760B, and TM efficient ActivePMU power management solution, JZ4770 Processors optimized for the unique power, voltage- Three Step-Down DC/DC Converters sequencing, and control requirements of the Ingenic One Step-Up DC/DC Converter JZ4760, JZ4760B and JZ4770 processors. USB OTG Switch with 600mA Current Limit This device features three highly efficient step-down DC/DC converters, one step-up DC/DC converter, Four Low-Noise LDOs four low-noise, low-dropout linear regulators, and Two Low IQ Keep-Alive LDOs two Low IQ always on Keep-Alive linear regulators, Backup Battery Charger a current limit switch for USB OTG, along with a TM complete battery charging solution featuring the Single-Cell Li+ActivePath Battery Charger TM advanced ActivePath system-power selection 2 TM I C Serial Interface function. Interrupt Controller The ACT8600 is available in a compact, Pb-Free Power On Reset Interface and Sequencing and RoHS-compliant TQFN55-40 package. Controller Minimum External Components 55mm TQFN55-40 Package 0.75mm Package Height Pb-Free and RoHS Compliant SYSTEM BLOCK DIAGRAM TM Active PMPMPMUUU TM www.active-semi.com Innovative Power - 1 - TM TM ActivePMU and ActivePath are trademarks of Active-Semi. 2 TM I C is a trademark of NXP. Copyright 2014 Active-Semi, Inc. ACT8600 Rev 4, 10-Sep-14 TABLE OF CONTENTS General Information ..................................................................................................................................... p. 01 Functional Block Diagram ............................................................................................................................ p. 04 Ordering Information .................................................................................................................................... p. 05 Pin Configuration ......................................................................................................................................... p. 05 Pin Descriptions ........................................................................................................................................... p. 06 Absolute Maximum Ratings ......................................................................................................................... p. 08 2 I C Interface Electrical Characteristics ........................................................................................................ p. 09 Global Register Map .................................................................................................................................... p. 10 Register and Bit Descriptions ...................................................................................................................... p. 11 System Control Electrical Characteristics .................................................................................................... p. 16 Step-Down DC/DC Electrical Characteristics .............................................................................................. p. 17 Step-Up DC/DC Electrical Characteristics ................................................................................................... p. 18 Low-Noise LDO Electrical Characteristics ............................................................................................ p. 19 Low-IQ LDO Electrical Characteristics ........................................................................................................ p. 20 OTG Subsystem Electrical Characteristics .................................................................................................. p. 20 TM ActivePath Charger Electrical Characteristics........................................................................................ p. 21 Typical Performance Characteristics......p. 23 System Control Information ......................................................................................................................... p. 34 Interfacing with the Ingenic JZ4770 Processor .............................................................................. p. 34 Control Signals ............................................................................................................................... p. 34 Power Control Sequences .............................................................................................................. p. 35 Functional Description ................................................................................................................................. p. 37 2 I C Interface .................................................................................................................................... p. 37 Interrupt Service Routine ................................................................................................................ p. 37 Housekeeping Functions ................................................................................................................ p. 37 Thermal Protection ......................................................................................................................... p. 38 Step-Down DC/DC Regulators .................................................................................................................... p. 39 General Description ........................................................................................................................ p. 39 Output Current Capability ............................................................................................................... p. 39 100% Duty Cycle Operation ........................................................................................................... p. 39 Operating Mode .............................................................................................................................. p. 39 Synchronous Rectification .............................................................................................................. p. 39 Soft-Start ......................................................................................................................................... p. 39 Compensation ................................................................................................................................. p. 39 Configuration Options ..................................................................................................................... p. 39 Configurable Step-Up DC/DC ...................................................................................................................... p. 40 General Description ........................................................................................................................ p. 40 5V Applications ............................................................................................................................... p. 40 Compensation and Stability ............................................................................................................ p. 40 Configuration Options ..................................................................................................................... p. 40 Low-Dropout Linear Regulators ................................................................................................................... p. 41 General Description ........................................................................................................................ p. 41 LDO Output Voltage Programming ................................................................................................. p. 41 Enabling and Disabling the LDOs ................................................................................................... p. 41 Power-OK ....................................................................................................................................... p. 41 Interrupts ......................................................................................................................................... p. 41 Optional LDO Output Discharge ..................................................................................................... p. 41 Output Capacitor Selection ............................................................................................................. p. 41 Backup Battery Charger ................................................................................................................. p. 41 TM www.active-semi.com Innovative Power - 2 - TM TM ActivePMU and ActivePath are trademarks of Active-Semi. 2 TM I C is a trademark of NXP. Copyright 2014 Active-Semi, Inc.