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ACT8945A डेटा पत्रक PDF( Datasheet डाउनलोड )


डेटा पत्रक - Advanced PMU - Active-Semi

भाग संख्या ACT8945A
समारोह Advanced PMU
मैन्युफैक्चरर्स Active-Semi 
लोगो Active-Semi लोगो 
पूर्व दर्शन
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<?=ACT8945A?> डेटा पत्रक पीडीएफ

ACT8945A pdf
ACT8945A
Rev 6, 01-Feb-16
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. 27
Interfacing with the Atmel SAMA5D2, SAMA5D3 Series & SAM9 Series Processors ....................p. 27
Control Signals .................................................................................................................................p. 28
Push-Button Control.........................................................................................................................p. 28
Control Sequences...........................................................................................................................p. 29
Functional Description .................................................................................................................................p. 30
I2C Interface .....................................................................................................................................p. 30
Voltage Monitor and Interrupt...........................................................................................................p. 30
Thermal Shutdown ...........................................................................................................................p. 31
Step-Down DC/DC Regulators ....................................................................................................................p. 32
General Description..........................................................................................................................p. 32
100% Duty Cycle Operation.............................................................................................................p. 32
Synchronous Rectification................................................................................................................p. 32
Soft-Start ..........................................................................................................................................p. 32
Compensation ..................................................................................................................................p. 32
Configuration Options.......................................................................................................................p. 32
OK[ ] and Output Fault Interrupt.......................................................................................................p. 33
PCB Layout Considerations .............................................................................................................p. 33
Low-Noise, Low-Dropout Linear Regulators................................................................................................p. 34
General Description..........................................................................................................................p. 34
Output Current Limit .........................................................................................................................p. 34
Compensation ..................................................................................................................................p. 34
Configuration Options.......................................................................................................................p. 34
OK[ ] and Output Fault Interrupt.......................................................................................................p. 34
PCB Layout Considerations .............................................................................................................p. 34
ActivePathTM Charger ..................................................................................................................................p. 36
General Description..........................................................................................................................p. 36
ActivePath Architecture ....................................................................................................................p. 36
System Configuration Optimization..................................................................................................p. 36
Input Protection ................................................................................................................................p. 36
Battery Management ........................................................................................................................p. 36
Charge Current Programming..........................................................................................................p. 37
Charger Input Interrupts ...................................................................................................................p. 37
Charge-Control State Machine.........................................................................................................p. 39
State Machine Interrupts ..................................................................................................................p. 39
Thermal Regulation ..........................................................................................................................p. 40
Charge Safety Timers ......................................................................................................................p. 40
Charger Timer Interrupts ..................................................................................................................p. 40
Charge Status Indicator....................................................................................................................p. 40
Reverse-Current Protection .............................................................................................................p. 40
Battery Temperature Monitoring ......................................................................................................p. 40
Battery Temperature Interrupts ........................................................................................................p. 41
ActivePMUTM and ActivePathTM are trademarks of Active-Semi.
I2CTM is a trademark of NXP.
-2-
www.active-semi.com
Copyright © 2016 Active-Semi, Inc.

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डाउनलोड[ ACT8945A Datasheet.PDF ]


शेयर लिंक


अनुशंसा डेटापत्रक

भाग संख्याविवरणविनिर्माण
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