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參數(shù)資料
| 型號： | LP3947 |
| 廠商： | National Semiconductor Corporation |
| 英文描述： | USB/AC Adaptor, Single Cell Li-Ion Battery Charger IC |
| 中文描述： | 的USB / AC適配器，單節(jié)鋰離子電池充電器IC |
| 文件頁數(shù)： | 12/14頁 |
| 文件大?。?/td> | 649K |
| 代理商： | LP3947 |
Application Notes
(Continued)
TABLE 3. LP3947 Serial Port Communication address code 7h’47
LP3947 Control and Data Codes
4
Batt Voltage
(0) = 4.1V
1 = 4.2V
Addrs
8'h00
Register
Charger
Register -1
7
6
5
3
2
1
0
AC Adaptor
Charge
Current
Code 3
(1)
Charging
(Red LED)
R/O
USB
Charge
Current
Code 3
(1)
AC Adaptor
Charge
Current
Code 2
(0)
EOC
SEL-1
(0)
USB
Charge
Current
Code 2
(0)
AC Adaptor
Charge
Current
Code 1
(0)
EOC
SEL-0
(1)
USB
Charge
Current
Code 1
(0)
AC Adaptor
Charge
Current
Code 0
(0)
8'h01
Charger
Register -2
EOC
(Green LED)
R/O
8'h02
Charger
Register -3
USB
Charge
Current
Code 0
(0)
Numbers in parentheses indicate default setting. “0” bit is set to low state, and “1” bit is set to high state. R/O –Read Only, All other bits are Read and Write.
TABLE 4. Charger Current and EOC Current Programming Code
Data Code
Charger Current
Selection Code I
SET
(mA)
100
150
200
250
300
350
400
450
500
550
600
650
700
750
End of Charge Current
Selection Code
4h'00
4h'01
4h'02
4h'03
4h'04
4h'05
4h'06
4h'07
4h'08
4h'09
4h'0A
4h'0B
4h'0C
4h'0D
0.1C
0.15C
0.2C
20111012
w = write (sda = “0”)
r = read (sda = “1”)
ack = acknowledge (sda pulled low by either master or slave)
Nack = No Acknowledge
rs = repeated start
FIGURE 7. LP3947 (Slave) Register Write
L
www.national.com
12
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LP3947ISD-09 | 功能描述:電池管理 RoHS:否 制造商:Texas Instruments 電池類型:Li-Ion 輸出電壓:5 V 輸出電流:4.5 A 工作電源電壓:3.9 V to 17 V 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝 / 箱體:VQFN-24 封裝:Reel |
| LP3947ISD-09/NOPB | 功能描述:電池管理 RoHS:否 制造商:Texas Instruments 電池類型:Li-Ion 輸出電壓:5 V 輸出電流:4.5 A 工作電源電壓:3.9 V to 17 V 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝 / 箱體:VQFN-24 封裝:Reel |
| LP3947ISD-51 | 功能描述:電池管理 RoHS:否 制造商:Texas Instruments 電池類型:Li-Ion 輸出電壓:5 V 輸出電流:4.5 A 工作電源電壓:3.9 V to 17 V 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝 / 箱體:VQFN-24 封裝:Reel |
| LP3947ISD-51/NOPB | 功能描述:電池管理 RoHS:否 制造商:Texas Instruments 電池類型:Li-Ion 輸出電壓:5 V 輸出電流:4.5 A 工作電源電壓:3.9 V to 17 V 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝 / 箱體:VQFN-24 封裝:Reel |
| LP3947ISD-51EV | 功能描述:電源管理IC開發(fā)工具 LP3947 EVAL BOARD RoHS:否 制造商:Maxim Integrated 產(chǎn)品:Evaluation Kits 類型:Battery Management 工具用于評估:MAX17710GB 輸入電壓: 輸出電壓:1.8 V |
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