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| 型号： | LP3907SQ-JIXI |
| 厂商： | NATIONAL SEMICONDUCTOR CORP |
| 元件分类： | 稳压器 |
| 英文描述： | 1.5 A DUAL SWITCHING CONTROLLER, 2100 kHz SWITCHING FREQ-MAX, QCC24 |
| 封装： | 4 X 4 MM, 0.8 MM HEIGHT, LLP-24 |
| 文件页数： | 20/44页 |
| 文件大小： | 3058K |
| 代理商： | LP3907SQ-JIXI |
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I2C Compatible Serial Interface
I2C SIGNALS
The LP3907 features an I2C compatible serial interface, using
two dedicated pins: SCL and SDA for I2C clock and data re-
spectively. Both signals need a pull-up resistor according to
the I2C specification. The LP3907 interface is an I2C slave that
is clocked by the incoming SCL clock.
Signal timing specifications are according to the I2C bus spec-
ification. The maximum bit rate is 400kbit/s. See I2C specifi-
cation from Philips for further details.
I2C DATA VALIDITY
The data on the SDA line must be stable during the HIGH
period of the clock signal (SCL), e.g.- the state of the data line
can only be changed when CLK is LOW.
30017816
I2C Signals: Data Validity
I2C START AND STOP CONDITIONS
START and STOP bits classify the beginning and the end of
the I2C session. START condition is defined as the SDA signal
transitioning from HIGH to LOW while the SCL line is HIGH.
STOP condition is defined as the SDA transitioning from LOW
to HIGH while the SCL is HIGH. The 2C master always gen-
erates START and STOP bits. The I2C bus is considered to
be busy after START condition and free after STOP condition.
During data transmission, I2C master can generate repeated
START conditions. First START and repeated START condi-
tions are equivalent, function-wise.
30017817
START and STOP Conditions
27
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LP3907
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相关代理商/技术参数 |
参数描述 |
|---|---|
| LP3907SQ-JXQX | 制造商:Texas Instruments 功能描述: |
| LP3907SQ-JXQX/NOPB | 功能描述:其他电源管理 RoHS:否 制造商:Texas Instruments 输出电压范围: 输出电流:4 mA 输入电压范围:3 V to 3.6 V 输入电流: 功率耗散: 工作温度范围:- 40 C to + 110 C 安装风格:SMD/SMT 封装 / 箱体:VQFN-48 封装:Reel |
| LP3907SQ-JXQX/S7001874 | 制造商:Texas Instruments 功能描述:NSCLP3907SQ-JXQX@S7001874 1A&0.6A BUCKS |
| LP3907SQ-JXQXEV | 功能描述:LP3907 EVALUATION BOARD RoHS:否 类别:编程器，开发系统 >> 评估板 - DC/DC 与 AC/DC（离线）SMPS 系列:PowerWise® 产品培训模块:Obsolescence Mitigation Program 标准包装:1 系列:True Shutdown™ 主要目的:DC/DC，步升 输出及类型:1，非隔离 功率 - 输出:- 输出电压:- 电流 - 输出:1A 输入电压:2.5 V ~ 5.5 V 稳压器拓扑结构:升压 频率 - 开关:3MHz 板类型:完全填充 已供物品:板 已用 IC / 零件:MAX8969 |
| LP3907SQ-JXQXEV/NOPB | 功能描述:BOARD EVAL FOR LP3907 RoHS:是 类别:编程器，开发系统 >> 评估板 - DC/DC 与 AC/DC（离线）SMPS 系列:PowerWise® 产品培训模块:Obsolescence Mitigation Program 标准包装:1 系列:True Shutdown™ 主要目的:DC/DC，步升 输出及类型:1，非隔离 功率 - 输出:- 输出电压:- 电流 - 输出:1A 输入电压:2.5 V ~ 5.5 V 稳压器拓扑结构:升压 频率 - 开关:3MHz 板类型:完全填充 已供物品:板 已用 IC / 零件:MAX8969 |
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