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STBC21FTR датащи(PDF) 2 Page - STMicroelectronics

номер детали STBC21FTR
подробное описание детали  LI battery charger with thermal regulation
PDF  54 Pages
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производитель  STMICROELECTRONICS [STMicroelectronics]
домашняя страница  http://www.st.com
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STBC21FTR датащи(HTML) 2 Page - STMicroelectronics

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Contents
STBC21
2/54
Doc ID 023256 Rev 1
Contents
1
Block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
2
Pin configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
3
Maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
4
Electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
5
Detailed description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
5.1
Operation mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
5.2
Battery connection detection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
5.3
Start of charge . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
5.4
Fast-charge programming . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
5.5
Charge auto-limitation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
5.6
PHC pin functionality . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
5.7
Alarms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
5.8
Reversed battery polarity protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
5.9
Temperature protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
5.10
I²C data transfer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
5.10.1
Sequential registers write: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
5.10.2
Sequential registers read: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
6
ESD requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
Appendix A
Register configuration and access mode description . . . . . . . . . . 30
Appendix B
Charging parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
Appendix C
Charging control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
Appendix D
Temperature thresholds . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
Appendix E
LED configurations diversified for customer
(each customer one pattern). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40



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