DA9213-A and DA9214-A

Auto Grade Multi-Phase 5A/Phase Buck Converter

Datasheet

Revision 1.4

08-May-2017

CFR0011-120-00

3 of 62

© 2017 Dialog Semiconductor

Contents

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

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

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

System Diagrams ................................................................................................................................ 2

Contents ............................................................................................................................................... 3

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

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

1

Terms and Definitions................................................................................................................... 6

2

Pinout ............................................................................................................................................. 7

3

Absolute Maximum Ratings ....................................................................................................... 10

4

Recommended Operating Conditions....................................................................................... 10

5

Electrical Characteristics ........................................................................................................... 11

6

Efficiency Measurements ........................................................................................................... 18

7

Functional Description ............................................................................................................... 20

7.1

DC-DC Buck Converter....................................................................................................... 23

7.1.1

Switching Frequency ........................................................................................... 24

7.1.2

Operation Modes and Phase Selection ............................................................... 24

7.1.3

Output Voltage Selection ..................................................................................... 24

7.1.4

Soft Start Up ........................................................................................................ 25

7.1.5

Current Limit ........................................................................................................ 25

7.1.6

Variable VOUT above 1.57 V .............................................................................. 25

7.2

Ports Description................................................................................................................. 27

7.2.1

VDDIO.................................................................................................................. 27

7.2.2

IC_EN .................................................................................................................. 27

7.2.3

nIRQ..................................................................................................................... 27

7.2.4

GPIO Extender .................................................................................................... 27

7.3

Operating Modes................................................................................................................. 30

7.3.1

ON Mode ............................................................................................................. 30

7.3.2

OFF Mode............................................................................................................ 30

7.4

Control Interfaces................................................................................................................ 30

7.4.1

4-WIRE Communication ...................................................................................... 30

7.4.2

2-WIRE Communication ...................................................................................... 35

7.4.3

Details of the 2-WIRE Control Bus Protocol ........................................................ 36

7.5

Internal Temperature Supervision....................................................................................... 39

8

Register Definitions .................................................................................................................... 40

8.1

Register Map ....................................................................................................................... 40

8.2

Register Definitions ............................................................................................................. 42

8.2.1

Register Page Control ......................................................................................... 42

8.2.2

Register Page 0 ................................................................................................... 42