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參數(shù)資料
| 型號： | LP3971 |
| 廠商： | National Semiconductor Corporation |
| 英文描述： | POWER MANAGEMENT UNIT FOR ADVANCED APPLICATION PROCESSORS |
| 中文描述： | 電源管理單元提供高級應(yīng)用處理器 |
| 文件頁數(shù)： | 20/42頁 |
| 文件大?。?/td> | 1350K |
| 代理商： | LP3971 |
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2
C Register Definitions
(Continued)
BACKUP BATTERY CHARGER CONTROL REGISTER (BBCC) 8h’0B
Bit
7
6
5
4
3
2
1
0
Designation
Reset Value
NBUB
0
CNBFL
0
nBFLT
1
BUCEN
0
IBUC
0
0
0
1
BACKUP BATTERY CHARGER CONTROL REGISTER (BBCC) 8h’0B DEFINITIONS
Bit
7
Access
R/W
Name
NBUB
Description
No back-up battery default setting. Logic will not allow switch over to back-up battery.
0 = Back up Battery Enabled
1 = Back up Battery Disabled
Control for nBATT_FLT output signal
0 = nBATT_FLT Enabled
1 = nBATT_FLT Disabled
nBATT_FLT monitors the battery voltage and can be set to the De-assert voltages listed
below.
Data Code
Asserted
3h’00
2.4
3h’01
2.6
3h’02
2.8
3h’03
3.0
3h’04
3.2
3h’05
3.4
Enables backup battery charger
0 = Back up Battery Charger Disabled
1 = Back up Battery Charger Enabled
Charger current setting for back-up battery
Data Code
BU Charger I (μA)
2h’00
260
2h’01
190
2h’02
325
2h’03
390
6
R/W
CNBFL
5:3
R/W
BFLT
De-Asserted
2.6
2.8
3.0
3.2
3.4
3.6
2
R/W
BUCEN
1:0
R/W
IBUC
L
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| LP3971SQX-A514 | POWER MANAGEMENT UNIT FOR ADVANCED APPLICATION PROCESSORS |
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LP3971SQ-2G16/NOPB | 功能描述:PMIC 解決方案 RoHS:否 制造商:Texas Instruments 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:QFN-24 封裝:Reel |
| LP3971SQ-7848/NOPB | 功能描述:PMIC 解決方案 RoHS:否 制造商:Texas Instruments 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:QFN-24 封裝:Reel |
| LP3971SQ-8858/NOPB | 功能描述:PMIC 解決方案 RoHS:否 制造商:Texas Instruments 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:QFN-24 封裝:Reel |
| LP3971SQ-A514 | 制造商:NSC 制造商全稱:National Semiconductor 功能描述:POWER MANAGEMENT UNIT FOR ADVANCED APPLICATION PROCESSORS |
| LP3971SQ-B410 | 功能描述:PMIC 解決方案 RoHS:否 制造商:Texas Instruments 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:QFN-24 封裝:Reel |
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