DA9155M

2.5 A Companion Charger for Rapid Charging

Datasheet

Revision 3.2

25-Feb-2022

CFR0011-120-00 Rev 5

4 of 37

© 2022 Renesas Electronics

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 Overview25

11.2 Register Descriptions .......................................................................................................... 26

11.3 Page 0

26