DA9155M

2.5 A Companion Charger for rapid charging

Contents

General description............................................................................................................................. 1

Key features ......................................................................................................................................... 1

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

1

Block diagram................................................................................................................................ 2

2

Revision history ............................................................................................................................ 3

3

Ordering information .................................................................................................................... 3

Contents ............................................................................................................................................... 4

4

Pin list............................................................................................................................................. 6

5

Absolute maximum ratings .......................................................................................................... 8

6

Recommended operating conditions .......................................................................................... 8

7

Electrical characteristics .............................................................................................................. 8

7.1

Digital I/O .............................................................................................................................. 8

7.2

VIN monitoring........................................................................................................................ 9

7.3

Buck converter ...................................................................................................................... 9

7.4

2-wire interface.................................................................................................................... 11

7.5

Temperature supervision .................................................................................................... 12

7.6

VBAT monitoring ................................................................................................................... 12

7.7

Current consumption........................................................................................................... 13

8

Typical characteristics................................................................................................................ 14

9

System block diagram ................................................................................................................ 15

9.1

Main charger ....................................................................................................................... 16

9.2

Slave charger ...................................................................................................................... 16

10 Functional description................................................................................................................ 16

10.1 Control signals .................................................................................................................... 16

10.1.1

EN ........................................................................................................................ 16

10.1.2

nIRQ..................................................................................................................... 17

10.2 2-wire interface.................................................................................................................... 17

10.2.1

Register map paging............................................................................................ 18

10.2.2

Details of the 2-wire protocol ............................................................................... 18

10.3 Buck converter .................................................................................................................... 20

10.4 Safety timer ......................................................................................................................... 21

10.5 VIN monitoring...................................................................................................................... 21

10.6 VBAT monitoring ................................................................................................................... 22

10.7 Junction temperature supervision ....................................................................................... 22

10.8 Power modes ...................................................................................................................... 23

10.8.1

No-power ............................................................................................................. 23

10.8.2

Reset.................................................................................................................... 23

10.8.3

Disabled ............................................................................................................... 24

10.8.4

Active ................................................................................................................... 24

11 Register map................................................................................................................................ 25

11.1 Overview ............................................................................................................................. 25

11.2 Register descriptions........................................................................................................... 26

11.3 Page 0

............................................................................................................................. 26

Datasheet

v3.05

22-July-2016

CFR0011-120-00 Rev 5

4 of 36

© 2016 Dialog Semiconductor