DC1815A-A
数据手册.pdf
Linear Technology
凌力尔特
主动器件
Demonstration Board, Power Over Ethernet POE, PSE Controller, I2C Serial Interface
The demonstration circuit 1815A-A features the LTC®4266A quad power sourcing equipment controller, capable of delivering up to 38.7W of LTPoE++™ power to a compatible LTPoE++ powered device. Advanced power management features of the LTC4266A include a 14-bit current monitoring ADC, DAC-programmable current limit, and versatile quick port shutdown. The LTC4266A includes an I²C serial interface operable up to 1MHz. The LTC4266A is configurable on the as an AUTO pin high, MID pin high, autonomous midspan power injector; input data from an existing network system is sent out, along with power, to a powered device.
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- Four independent PSE channels
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- Compliant with IEEE 802.3at Type 1 and 2
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- Low power dissipation
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- 0.25R sense resistance per channel
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- Very high reliability 4-Point powered device detection
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- High capacitance legacy device detection
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- 1MHz I²C compatible serial control interface
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- Midspan backoff timer