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參數(shù)資料
| 型號(hào)： | LP3972 |
| 廠商： | National Semiconductor Corporation |
| 英文描述： | Power Management Unit for Advanced Application Processors |
| 中文描述： | 電源管理單元的高級(jí)應(yīng)用處理器 |
| 文件頁(yè)數(shù)： | 25/59頁(yè) |
| 文件大?。?/td> | 1072K |
| 代理商： | LP3972 |
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I
2
C Compatible Interface
(Continued)
OUTPUT VOLTAGE ENABLE REGISTER 1
This register enables or disables the low voltage supplies LDO1 and Buck1. See details below.
Output Voltage Enable Register 1 (OVER1) 8h’10
Bit
Designation
Reset Value
7
6
5
4
3
2
1
0
Reserved
0
S_EN
1
Reserved
0
A_EN
1
0
0
0
0
Output Voltage Enable Register 1 (OVER1) 8h’10 Definitions
Bit
Access
Name
Description
Reserved
V
CC
_SRAM (LDO5) Supply Output Enabled
0 = V
CC
_SRAM (LDO5) Supply Output Disabled
1 = V
CC
_SRAM (LDO5) Supply Output Enabled
Reserved
V
CC
_APPS (Buck1) Supply Output Enabled
0 = V
CC
_APPS (BUCK1) Supply Output Disabled
1 = V
CC
_APPS (BUCK1) Supply Output Enabled
7-3
2
—
R/W
—
S_EN
1
0
—
R/W
—
A_EN
OUTPUT VOLTAGE STATUS REGISTER
This 8 bit register is used to indicate the status of the low voltage supplies. By polling each of the specify supplies is within its
specified operating range.
Output Voltage Status Register 1 (OVSR1) 8h’11
Bit
7
6
5
4
3
2
1
0
Designation
Reset Value
LP_OK
0
Reserved
S_OK
0
Reserved
0
A_OK
0
0
0
0
0
Output Voltage Status Register 1 (OVSR1) 8h’11 Definitions
Bit
7
Access
R
Name
LP_OK
Description
Low Voltage Supply Output Voltage Status
0 - V
CC
_APPS (Buck1) & V
CC
_SRAM (LDO5) output voltage
<
90% of
selected value
1 - V
CC
_APPS (Buck1) & V
CC
_SRAM (LDO5) output voltage
>
90% of
selected value
Reserved
V
CC
_SRAM Supply Output Voltage Status
0 - V
CC
_SRAM (LDO5) output voltage
<
90% of selected value
1 - V
CC
_SRAM (LDO5) output voltage
>
90% of selected value
Reserved
V
CC
_APPS Supply output Voltage Status
0 - V
CC
_APPS(BUCK1) output voltage
<
90% of selected value
1 - V
CC
_APPS(BUCK1) output voltage
>
90% of selected value
6:3
2
—
R
—
S_OK
1
0
—
R
—
A_OK
L
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LP3972_08 | 制造商:NSC 制造商全稱(chēng):National Semiconductor 功能描述:Power Management Unit for Advanced Application Processors |
| LP3972SQ-0514/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 |
| LP3972SQ-5810/NOPB | 功能描述:監(jiān)控電路 Pwr Mgmt Unit RoHS:否 制造商:STMicroelectronics 監(jiān)測(cè)電壓數(shù): 監(jiān)測(cè)電壓: 欠電壓閾值: 過(guò)電壓閾值: 輸出類(lèi)型:Active Low, Open Drain 人工復(fù)位:Resettable 監(jiān)視器:No Watchdog 電池備用開(kāi)關(guān):No Backup 上電復(fù)位延遲（典型值）:10 s 電源電壓-最大:5.5 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:UDFN-6 封裝:Reel |
| LP3972SQ-A413 | 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 |
| LP3972SQ-A413/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 |
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