DA9072 datasheet(3/113 Pages) DIALOG

3 / 113 page

DA9072

Ultra-Low Quiescent Current PMIC

Datasheet

Revision 3.0

14-Jun-2021

CFR0011-120-00

3 of 113

Contents

General Description ............................................................................................................................ 1

Key Features ........................................................................................................................................ 1

Applications ......................................................................................................................................... 1

System Diagram .................................................................................................................................. 2

Figures.................................................................................................................................................. 5

Tables ................................................................................................................................................... 5

Terms and Definitions......................................................................................................................... 8

Pinout ............................................................................................................................................. 9

Characteristics ............................................................................................................................ 12

2.1

Absolute Maximum Ratings ................................................................................................ 12

2.2

Electrostatic Discharge Ratings .......................................................................................... 12

2.3

Recommended Operating Conditions ................................................................................. 12

2.4

Electrical Characteristics..................................................................................................... 13

2.4.1

Battery Charger ................................................................................................... 13

2.4.2

Battery Temperature Monitor............................................................................... 14

2.4.3

LDO / Load Switches ........................................................................................... 14

2.4.4

Digital Inputs ........................................................................................................ 17

2.4.5

I2C Interface ......................................................................................................... 18

2.4.6

Input Currents ...................................................................................................... 18

2.4.7

Power Path Management and Current Limit ....................................................... 19

2.4.8

Protection............................................................................................................. 20

2.4.9

Pushbutton Timer ................................................................................................ 21

2.4.10

Digital Outputs ..................................................................................................... 21

2.4.11

Buck Regulator .................................................................................................... 21

2.4.12

Battery Monitors................................................................................................... 22

2.5

Thermal Characteristics ...................................................................................................... 23

Typical Performance Graphs ..................................................................................................... 24

Functional Description ............................................................................................................... 28

4.1

Overview ............................................................................................................................. 28

4.2

Battery-Powered Operation ................................................................................................ 29

4.2.1

Active Battery and High Impedance Modes ........................................................ 29

4.2.2

Battery Protection ................................................................................................ 30

4.3

Analog Battery Monitor Functions ....................................................................................... 33

4.3.1

Battery Discharge Current Monitoring ................................................................. 33

4.3.2

Battery Voltage Monitoring .................................................................................. 34

4.4

Battery Charging ................................................................................................................. 34

4.4.1

Battery Charging Process.................................................................................... 34

4.4.2

Charge in Progress.............................................................................................. 35

4.4.3

Pre-Charge and Termination Current .................................................................. 36

4.4.4

Fast Charge Current ............................................................................................ 36

4.4.5

CV Voltage Regulation and Termination ............................................................. 36

4.4.6

Charge Done and Recharge................................................................................ 36

4.4.7

Charge Faults ...................................................................................................... 36

4.4.8

Safety Timers....................................................................................................... 37

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