参数资料
型号: MAX5970EVKIT+
厂商: Maxim Integrated Products
文件页数: 39/41页
文件大小: 0K
描述: EVAL KIT MAX5970
标准包装: 1
系列: *
0V to 16V, Dual Hot-Swap Controller with 10-Bit
Current and Voltage Monitor and 4 LED Drivers
Early STOP Conditions
The MAX5970 recognizes a STOP condition at any point
during transmission except if a STOP condition occurs in
the same high pulse as a START condition. This condi-
tion is not a legal I 2 C format. At least one clock pulse
must separate any START and STOP condition.
REPEATED START Conditions
A REPEATED START (Sr) condition may indicate a
change of data direction on the bus. Such a change
occurs when a command word is required to initiate
a read operation (see Figure 4). Sr may also be used
when the bus master is writing to several I 2 C devices
and does not want to relinquish control of the bus. The
MAX5970 serial interface supports continuous write
operations with or without an Sr condition separating
them. Continuous read operations require Sr conditions
because of the change in direction of data flow.
START
CONDITION
Acknowledge
The acknowledge bit (ACK) is the 9th bit attached to any
8-bit data word. The receiving device always generates
an ACK. The MAX5970 generates an ACK when receiv-
ing an address or data by pulling SDA low during the
9th clock period (see Figure 8). When transmitting data,
such as when the master device reads data back from
the MAX5970, the MAX5970 waits for the master device
to generate an ACK. Monitoring ACK allows for detec-
tion of unsuccessful data transfers. An unsuccessful
data transfer occurs if the receiving device is busy or if
a system fault has occurred. In the event of an unsuc-
cessful data transfer, the bus master should reattempt
communication at a later time. The MAX5970 generates
a NACK after the slave address during a software reboot
or when receiving an illegal memory address.
CLOCK PULSE FOR ACKNOWLEDGE
SCL
1
2
8
9
SDA BY
TRANSMITTER
S
SDA BY
RECEIVER
Figure 8. Acknowledge
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MAX5970EVKIT+ 功能描述:电源管理IC开发工具 MAX5970 Eval Kit RoHS:否 制造商:Maxim Integrated 产品:Evaluation Kits 类型:Battery Management 工具用于评估:MAX17710GB 输入电压: 输出电压:1.8 V
MAX5971AETI+ 功能描述:热插拔功率分布 IEEE 802.3af/at PSE Controller RoHS:否 制造商:Texas Instruments 产品:Controllers & Switches 电流限制: 电源电压-最大:7 V 电源电压-最小:- 0.3 V 工作温度范围: 功率耗散: 安装风格:SMD/SMT 封装 / 箱体:MSOP-8 封装:Tube
MAX5971AETI+T 功能描述:热插拔功率分布 IEEE 802.3af/at PSE Controller RoHS:否 制造商:Texas Instruments 产品:Controllers & Switches 电流限制: 电源电压-最大:7 V 电源电压-最小:- 0.3 V 工作温度范围: 功率耗散: 安装风格:SMD/SMT 封装 / 箱体:MSOP-8 封装:Tube
MAX5971AETI+W 制造商:Maxim Integrated Products 功能描述:IEEE802.3 AT PSE SWITCH - Rail/Tube
MAX5971AEVKIT 功能描述:电源管理IC开发工具 RoHS:否 制造商:Maxim Integrated 产品:Evaluation Kits 类型:Battery Management 工具用于评估:MAX17710GB 输入电压: 输出电压:1.8 V