Datasheet
BD99954MWV, BD99954GW
Contents
Notation ....................................................................................................................................................................3
Reference .................................................................................................................................................................3
1. INTRODUCTION .................................................................................................................4
2. SIGNAL DESCRIPTION......................................................................................................5
3. PIN CONFIGURATION........................................................................................................6
4. ABSOLUTE MAXIMUM RATING ........................................................................................7
5. THERMAL RESISTANCE (NOTE 1) ........................................................................................7
6. RECOMMENDED OPERATING CONDITION.....................................................................7
7. FUNCTION DESCRIPTIONS...............................................................................................8
7.1.
7.2.
7.3.
7.4.
7.5.
7.6.
7.7.
7.8.
7.9.
Block Diagram ............................................................................................................................................8
External Characteristics for Battery Charger ..........................................................................................9
DC Input & Over Voltage Protection (OVP)............................................................................................10
USB Detection...........................................................................................................................................11
DC/DC Converter ......................................................................................................................................12
Charger......................................................................................................................................................14
Reverse DC/DC Converter.......................................................................................................................16
12-bit ADC .................................................................................................................................................17
Power On...................................................................................................................................................18
8. CONTROL SPECIFICATION.............................................................................................20
8.1.
8.2.
8.3.
8.4.
8.5.
8.6.
SMBus Communication ...........................................................................................................................20
SMBus Protocols......................................................................................................................................20
Command Code........................................................................................................................................22
Battery Charger Commands Description...............................................................................................26
Extended Commands Description..........................................................................................................29
Resister Default Value............................................................................................................................115
9. I/O EQUIVALENT CIRCUIT DIAGRAM .......................................................................... 118
10. ORDERING INFORMATION............................................................................................121
11. MARKING DIAGRAMS ...................................................................................................121
12. PHYSICAL DIMENSION TAPE AND REEL INFORMATION ..........................................122
13. OPERATIONAL NOTES..................................................................................................124
* Product structure: Silicon monolithic integrated circuit. ** This product is not designed to protect against radioactive rays.
Copyright: 2017 ROHM Co., Ltd. All rights reserved.
http://www.rohm.com/
TSZ22111-14-001
TSZ02201-0B4B0A700040-1-2
18. Jul. 2017, Rev.001
2/127
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