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LTC2975 数据表(PDF) 2 Page - Linear Technology |
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LTC2975 数据表(HTML) 2 Page - Linear Technology |
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2 / 32 page  2 dc2578af DEMO MANUAL DC2578A DESCRIPTION The DC2578A is a complete power chain, including a hot swap controller, an intermediate bus controller, and six point-of-load channels with power system manage- ment. The board demonstrates how to safely transfer power from a backplane, through an LTC4281 hot swap controller, through an LTC3886 step-down intermediate bus controller (IBC), and out through the point-of-load converters (POLs) that regulate load voltages. It shows the comprehensive set of power management, coopera- tion, and safety features of the Analog Devices solution, and showcases how easy it is to configure and manage the whole power hierarchy. Each regulated supply has the ability to sequence, trim, margin, supervise, measure, respond cooperatively to faults, and log fault informa- tion in nonvolatile memory. In addition, the onboard load pulser helps with optimizing the adjustable LTC3886 con- trol loop response. The rich set of status and telemetry information provided by the entire system is consolidated and presented under one GUI interface — LTpowerPlay. Figure 2. DC2578A Board Layout Table 2. Channel Capabilities PARAMETER HOT SWAP IBV_8V, IBV_5V CH0, CH1 CH2 TO CH5 Manager/Controller LTC4281 LTC3886 LTC3887 LTC2975 Nominal Channel Output Voltage 12V, VOUT = VIN 8V, 5V (Defined by Config) 2.5V, 2V (Defined by Config) 1.8V, 1.5V, 1.2V, 1V Configured Voltage Trim Range N/A ±5% ±5% ±5% Output Current Limit (Configured) 1A 4A 2.5A 2A Load Pulser Current N/A 1A on IBV_8V N/A N/A Temperature Monitor N/A 1 Internal, 2 External* 1 Internal, 2 External* 1 Internal, 4 External* *External temperature sensors are located near each inductor. BOARD FEATURES |
类似零件编号 - LTC2975 |
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类似说明 - LTC2975 |
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