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LTC2975 数据表(PDF) 11 Page - Linear Technology |
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LTC2975 数据表(HTML) 11 Page - Linear Technology |
11 / 32 page 11 dc2578af DEMO MANUAL DC2578A USING LTpowerPlay TO EXPLORE The procedure for loading any new project file into the operating memory of the ICs on the DC2578A board is as follows: 1) File Open... 2) Select the desired file (it may be in your work area or in the LTpowerPlay installation directory). 3) Press the GO ONLINE button to begin communicating with the I2C bus. 4) Press the PC RAM button to download the register settings to the ICs on the board. which can include a problem with a channel (like CH5 in Figure 16), a stored fault log, or simply commanded off with power not good, as with CH0 and CH1 in the figure. In Figure 17 we see the system tree when the hot swap is communicating over the bus, but not supplying down- stream power. All other ICs are off, so not communicating. This is indicated by the red circle icons indicating a device that is not communicating on the bus. THE SYSTEM TREE The main visualization of the overall system is the system tree, which shows the status of each IC in the design at a glance. Each power supply device and each channel is represented in the tree. Each device’s type and I2C address is shown, and each channel is labeled with an appropriate name representing its function on the DC2578A board. Select an IC or channel in the system tree by clicking it. Colors and icons are important in the system tree. Each little square icon is divided into a lower half labeled O for OUTPUT ENABLE, and an upper half labeled S for STATUS. Green means good, and red means fault. Gray means inactive (OFF). Yellow means status warning, Figure 15. System Tree Figure 16. System Tree with Color Coding Figure 17. System Tree with Limited Communication The system can also be sub-divided by group. In the tab above the system tree is a set of group names that repre- sent the parts of the power hierarchy for this board. Select a group by clicking its name (Figure 18). A selected group |
类似零件编号 - LTC2975 |
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类似说明 - LTC2975 |
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