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mic2310 pdf datasheet (Single-
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格式:rar |
大小:333 |
2009-03-11
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The MIC2310 is a single-channel, positive voltage, constant power-limit hot swap controller designed to provide for the safe insertion and removal of pc boards into fixed, rack, and pedestal mid- or back-planes using few external components. In addition, the MIC2310 employs a patent-pending, output load power-limiting technique where the current limit is inversely proportional to the output load voltage, such that the power product will not exceed the programmed power limit any longer than the externally programmed primary overcurrent period. The MIC2310 is ideally suited to address the power-limiting and timing requirements per the UL60950 specification for 240-VA applications. The MIC2310 incorporates high-side controller circuitry for an external N-channel MOSFET for which the MOSFET drain current rate of change is user-programmable via an external capacitor. The MIC2310 employs dual-speed, dual-level overcurrent fault protection. The primary overcurrent detector response time is programmable via an external current sense resistor and the secondary overcurrent detector is 2-bit user-programmable and exhibits a very fast (default) response to faults to ensure that the system power supplies are protected against catastrophic load current and short-circuit faults. Additionally, an analog output (voltage) signal is provided that is proportional to the steady-state load current to allow monitoring of the system’s power. A PWRGD signal is provided to indicate a valid output voltage that can be used to enable a DC-DC power module.
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