CONFIDENTIAL

1
????????????????

• ??

2
???????????
CONFIDENTIAL

• OVP
• Charger
• MUIC
• WLED Driver
• Audio Codec
• Buck
• LDO

3
????????????
4
????????
5
??????????
CONFIDENTIAL
End-of-Discharge Voltage

• Qmax??????
• EDV??????
• QuseltQmax
• Quse ??? IR ??? ? EDV
• RBAT ?????

6
?????
CONFIDENTIAL
????
Qmax ??

• ??????
• ????????
• ????????

• ??????
• ??????
• ?????,???????????

6
7
??????????
CONFIDENTIAL
8
????(OCV) vs ????
CONFIDENTIAL
9
OCV vs DOD(????,?? Qmax???)
CONFIDENTIAL

1. Batteries with distinct capacity
2. Normalized to their own Qmax

10
???????????????
CONFIDENTIAL
11
????????????????
CONFIDENTIAL
????
12
???DOD ? RBAT ???
CONFIDENTIAL

• ???????????? (NTC) / ??????????

13
?????

• ????????

14
????
15
????IC????
16
????????
17
?????
18
??IC??

• ????IC
• RT9502
• RT9503A
• RT9521
• RT9532
• RT9532H
• RT9536
• SS6000

• ?????IC
• RT9450A
• RT9451(12V,4A )
• RT9531/5/8(30V)

19
????
????

• ????
• ???? (CC)
• - ????????????
• 2. ???? (CV)
• 3. ????

??????????????
20
???????

• ????
• ???
• ?????
• ???????MOSFET?
• (?????????)
• 5. ????,????

??????????
21
????? (?????)
VIN5.0V, VBAT3.3V, Icharge1.25A
??????

• ????
• ????/ ?????? (CC)
• - ????
• 2. ???? (CV)
• 3. ????

?????????Buck?????
22
?????????????

• ?????? ??
• ??? ??
• VBAT? ? IBAT?
• ??IBAT gt IIN limit
• (IBATgt500mA when USB500)

• ?????? ??
• ??IBAT ??
• VBAT ? ? IIN ?
• ???????????

23
??????????
?? ?? ??
?? ?? ??

• USB ?? (5.0V,500mA)
• ??????500mA???????(500mA / D) 833mA (D0.6)
  595mA (D0.84)
• 
  

???????????? (?????????, IClt1C)
24
1500mAH????????
?? 11 ?? _at_ ?????? 100mA
???
USB500 ? 1500mAhr
??
25
?????IC????