參數(shù)資料
型號(hào)： LP3972SQX-5810
廠商： NATIONAL SEMICONDUCTOR CORP
元件分類(lèi)： 電源管理
英文描述： 1-CHANNEL POWER SUPPLY SUPPORT CKT, QCC40
封裝： 5 X 5 MM, LLP-40
文件頁(yè)數(shù)： 17/60頁(yè)
文件大?。?/td> 1171K
代理商： LP3972SQX-5810
LP3972 CONTROL REGISTER
Register Address
Register Name
Read/Write
Register Description
8h’07
SCR
R/W
System Control Register
8h’10
OVER1
R/W
Output Voltage Enable Register 1
8h’11
OVSR1
R
Output Voltage Status Register 1
8h’12
OVER2
R/W
Output Voltage Enable Register 2
8h’13
OVSR2
R
Output Voltage Status Register 2
8h’20
V
CC1
R/W
Voltage Change Control Register 1
8h’23
ADTV1
R/W
Buck1 Target Voltage 1 Register
8h’24
ADTV2
R/W
Buck1 DVM Target Voltage 2 Register
8h’25
AVRC
R/W
V
CC_APPS Voltage Ramp Control
8h’26
CDTC1
W
Dummy Register
8h’27
CDTC2
W
Dummy Register
8h’29
SDTV1
R/W
LDO5 Target Voltage 1
8h’2A
SDTV2
R/W
LDO5 Target Voltage 2
8h’32
MDTV1
R/W
LDO1 Target Voltage 1 Register
8h’33
MDTV2
R/W
LDO1 Voltage 2 Register
8h’39
L2VCR
R/W
LDO2 Voltage Control Registers
8h’3A
L34VCR
R/W
LDO3 & LDO4 Voltage Control Registers
8h’80
SCR1
R/W
System Control Register 1
8h’81
SCR2
R/W
System Control Register 2
8h’82
OEN3
R/W
Output Voltage Enable Register 3
8h’83
OSR3
R/W
Output Voltage Status Register 3
8h’84
LOER4
R/W
Output Voltage Enable Register 3
8h’85
B2TV
R/W
V
CC_Buck2 Target Voltage
8h’86
B3TV
R/W
V
CC_Buck3 Target Voltage
8h’87
B32RC
R/W
Buck 3:2 Voltage Ramp Control
8h’88
ISRA
R
Interrupt Status Register A
8h’89
BCCR
R/W
Backup Battery Charger Control Register
8h’8E
II1RR
R
Internal 1 Revision Register
8h’8F
II2RR
R
Internal 2 Revision Register
SERIAL INTERFACE REGISTER SELECTION CODES (Bold face voltages are default values)
System Control Status Register
Register is an 8-bit register which specifies the control bits for the PMIC clocks. This register works in conjunction with the SYNC
pin where an external clock PLL buffer operating at 13 MHz is synchronized with the oscillators of the buck converters.
System Control Register (SCR) 8h’07
Bit
7
6
5
4
3
2
1
0
Designation
Reserved
CLK_SCL
Reset Value
0
System Control Register (SCR) 8h’07 Definitions
Bit
Access
Name
Description
7-1
—
Reserved
0
R/W
CLK_SCL
External Clock Select
0 = Internal Oscillator clock for Buck Converters
1 = External 13 MHz Oscillator clock for Buck Converters
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LP3972
相關(guān)PDF資料
PDF描述
LP3972SQXA514 1-CHANNEL POWER SUPPLY SUPPORT CKT, QCC40
LP3972SQ-5810 1-CHANNEL POWER SUPPLY SUPPORT CKT, QCC40
LP3972SQXE514 1-CHANNEL POWER SUPPLY SUPPORT CKT, QCC40
LPB48DP 2-OUTPUT 75 W DC-DC REG PWR SUPPLY MODULE
LPB24DP 2-OUTPUT 75 W DC-DC REG PWR SUPPLY MODULE
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
LP3972SQX-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
LP3972SQXA413 制造商:NSC 制造商全稱(chēng):National Semiconductor 功能描述:Power Management Unit for Advanced Application Processors
LP3972SQX-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
LP3972SQX-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
LP3972SQXA514 制造商:NSC 制造商全稱(chēng):National Semiconductor 功能描述:Power Management Unit for Advanced Application Processors
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