DA9072 datasheet(4/113 Pages) DIALOG

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DA9072

Ultra-Low Quiescent Current PMIC

Datasheet

Revision 3.0

14-Jun-2021

CFR0011-120-00

4 of 113

4.5

USB Powered Operation and Power Path Management .................................................... 38

4.5.1

Under-Voltage Lockout ........................................................................................ 38

4.5.2

Sleep Mode.......................................................................................................... 38

4.5.3

VDD_PWR Current Limit ..................................................................................... 38

4.5.4

Input Voltage Dynamic Power Management ....................................................... 38

4.5.5

Dynamic Power Path Mode ................................................................................. 39

4.5.6

Battery Supplement Mode ................................................................................... 39

4.5.7

Input Over-Voltage Protection ............................................................................. 39

4.5.8

VDD_PWR Input Supply Impedance ................................................................... 39

4.6

Power Cycling ..................................................................................................................... 40

4.6.1

Requested Power Cycle ...................................................................................... 40

4.6.2

Fault Triggered Power Cycle ............................................................................... 41

4.7

Standalone Mode ................................................................................................................ 42

4.7.1

Termination and Pre-Charge Current Programming ........................................... 42

4.7.2

Input Current Limit Programming ........................................................................ 43

4.7.3

Charge Current Programming ............................................................................. 43

4.8

Host and Pushbutton Communication ................................................................................ 44

4.8.1

Watchdog Input and Timer .................................................................................. 45

4.8.2

VDDIO.................................................................................................................. 46

4.8.3

Interrupt Events and Status Control .................................................................... 46

4.8.4

Pushbutton Reset Timer and Reset Output......................................................... 47

4.8.5

System Status Register ....................................................................................... 48

4.8.6

I2C Programming ................................................................................................. 48

4.9

Buck Regulator.................................................................................................................... 49

4.9.1

Buck Output Voltage Programmability................................................................. 49

4.9.2

Buck Enable and Soft Start Operation................................................................. 50

4.9.3

Power Saving Mode Operation............................................................................ 50

4.9.4

Dynamic Voltage Control ..................................................................................... 50

4.9.5

Over-Current Protection....................................................................................... 50

4.9.6

Output Under-Voltage Protection ........................................................................ 51

4.9.7

Output Over-Voltage Protection .......................................................................... 51

4.9.8

Automatic Output Voltage Discharge .................................................................. 51

4.9.9

External Component Selection ............................................................................ 51

4.10 LDO / Load Switches .......................................................................................................... 51

4.11 Thermal Protection.............................................................................................................. 52

4.12 PCB Layout Guidelines ....................................................................................................... 52

Registers ...................................................................................................................................... 55

5.1

Register Map ....................................................................................................................... 55

5.1.1

System ................................................................................................................. 55

5.1.2

Charger ................................................................................................................ 57

5.1.3

Buck and LDO Control......................................................................................... 58

5.2

Register Definitions ............................................................................................................. 59

5.2.1

System ................................................................................................................. 59

5.2.2

Config................................................................................................................... 74

5.2.3

Charger ................................................................................................................ 75

5.2.4

Buck and LDO Control......................................................................................... 95

Package Information ................................................................................................................. 110

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