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參數(shù)資料
| 型號(hào)： | LP3972SQX-5810 |
| 廠商： | NATIONAL SEMICONDUCTOR CORP |
| 元件分類： | 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)： | 16/60頁(yè) |
| 文件大?。?/td> | 1171K |
| 代理商： | LP3972SQX-5810 |
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MULTI-BYTE I2C COMMAND SEQUENCE
To correctly function with the Monahan’s Power Management
I2C the LP3972’s I2C serial interface shall support Random
register Multi-byte command sequencing: During a multi-byte
write the Master sends the Start command followed by the
Device address, which is sent only once, followed by the 8 Bit
register address, then 8 bits of data. The I2C slave must then
accept the next random register address followed by 8 bits of
data and continue this process until the master sends a valid
stop condition.
A Typical Multi-byte random register transfer is outlined
below:
Device Address,
Register A Address, Ach,
Register A Data, Ach
Register M Address, Ach,
Register M Data, Ach
Register X Address, Ach,
Register X Data, Ach
Register Z Address, Ach,
Register Z Data, Ach, Stop
Note:
the PMIC is not required to see the I2C device address
for each transaction. A, M, X, and Z are Random numbers.
20207642
INCREMENTAL REGISTER I2C COMMAND SEQUENCE
The LP3972 supports address increment (burst mode). When
you have defined register address n data bytes can be sent
and register address is incremented after each data byte has
been sent. Address incrimination may be required for non
XScale applications. User can define whether multi-byte (de-
fault) to random address or address incrimination will be used.
20207643
23
www.national.com
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: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:National Semiconductor 功能描述:Power Management Unit for Advanced Application Processors |
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