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ACT8946AQJ203-T Datenblatt(PDF) 2 Page - Active-Semi, Inc

Teilenummer ACT8946AQJ203-T
Bauteilbeschribung  Advanced PMU for Hisilicon Processors
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Hersteller  ACTIVE-SEMI [Active-Semi, Inc]
Direct Link  http://www.active-semi.com
Logo ACTIVE-SEMI - Active-Semi, Inc

ACT8946AQJ203-T Datenblatt(HTML) 2 Page - Active-Semi, Inc

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ACT8946AQJ203-T
Rev 1.0, 08-Jul-16
ActivePMU and ActivePath are trademarks of Active-Semi.
-
2 -
www.active-semi.com
Copyright © 2016 Active-Semi, Inc.
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
I2C 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
Low-Noise LDO Electrical Characteristics...................................................................................................p. 18
ActivePathTM Charger Electrical Characteristics..........................................................................................p. 19
Typical Performance Characteristics ...........................................................................................................p. 21
System Control Information .........................................................................................................................p. 25
Interfacing with the Hi351X Processors ...........................................................................................p. 25
Control Signals .................................................................................................................................p. 25
Control Sequences...........................................................................................................................p. 25
Functional Description .................................................................................................................................p. 26
I2C Interface......................................................................................................................................p. 26
Voltage Monitor and Interrupt...........................................................................................................p. 26
Thermal Shutdown ...........................................................................................................................p. 26
Step-Down DC/DC Regulators ....................................................................................................................p. 27
General Description..........................................................................................................................p. 27
100% Duty Cycle Operation .............................................................................................................p. 27
Synchronous Rectification................................................................................................................p. 27
Soft-Start ..........................................................................................................................................p. 27
Compensation ..................................................................................................................................p. 27
Configuration Options.......................................................................................................................p. 27
OK[ ] and Output Fault Interrupt.......................................................................................................p. 28
PCB Layout Considerations .............................................................................................................p. 28
Low-Noise, Low-Dropout Linear Regulators................................................................................................p. 29
General Description..........................................................................................................................p. 29
Output Current Limit .........................................................................................................................p. 29
Compensation ..................................................................................................................................p. 29
Configuration Options.......................................................................................................................p. 29
OK[ ] and Output Fault Interrupt.......................................................................................................p. 29
PCB Layout Considerations .............................................................................................................p. 29
ActivePath Charger.....................................................................................................................................p. 30
General Description..........................................................................................................................p. 30
ActivePath Architecture ....................................................................................................................p. 30
System Configuration Optimization..................................................................................................p. 30
Input Protection ................................................................................................................................p. 30
Battery Management ........................................................................................................................p. 30
Charge Current Programming ..........................................................................................................p. 31
Charger Input Interrupts ...................................................................................................................p. 31
Thermal Regulation ..........................................................................................................................p. 31
Charge Safety Timers ......................................................................................................................p. 31
Charger Timer Interrupts ..................................................................................................................p. 31
Charge Status Indicator....................................................................................................................p. 32
Reverse-Current Protection..............................................................................................................p. 32
Battery Temperature Monitoring ......................................................................................................p. 32
Battery Temperature Interrupts ........................................................................................................p. 32
Charge-Control State Machine.........................................................................................................p. 33
State Machine Interrupts ..................................................................................................................p. 33


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