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2022-09-24 23:16:53
LTC4255 - Quad Network Power Controller with I2C Compatible Interface
The LTC®4255 is a quad-48V network power controller with independent relay drivers and an I2C compatible interface. Each channel can be turned on and off via software control while providing short circuit protection, opencircuit detection and power good indication. The short circuit protection includes a current foldback feature to reduce power loss and switch start-up during shorts. The serial interface allows up to 128 channels for only two digital control lines. A fault output acts as an interrupt line to eliminate fault detection software polling. External switches and current sense resistors allow for simple scaling of current and power dissipation levels and provide maximum protection against voltage and current spikes. ...
Features Control Four Independent - 48V Power Channels Each channel has independent relay drivers, on/off control, short circuit current protection with foldback, open circuit detection and power good indication programming via I2CTM compatible interface
5-bit programmable digital address allows control of up to 32 LTC4255s (128 channels)
Interrupt on FAULT output can be used to eliminate software polling Programmable current limit and open circuit time period Programmable Latchoff or auto-retry after short circuit fault Programmable duty cycle auto-retry