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STMicroelectronics ISO808 Galvanic Isolated 8-Channel Drivers are intended to drive any load with one side connected to the ground. Each driver contains two independent galvanic isolated voltage domains (VCC and VDD for the process and control logic stages). These drivers offer a low supply current, maximum 45V process stage supply voltage, 0.125Ω ON state resistance per channel (typical) RDS(ON), reset function for IC outputs disabled, high common mode transient immunity, and short circuit protection on output channels. The ISO808 drivers also offer per-channel over-temperature protection with thermal independence of separate channels, case over-temperature protection, over-voltage protection, and loss of GND and VCC protections.
The ISO808 drivers include an additional case temperature sensor that protects the whole chip against overtemperature (OVC event). Non-overloaded channels continue to operate normally. These drivers also include loss of ground protection, VCC and VDD UVLOs (with hysteresis), and watchdog-embedded functions. The ISO808 drivers are used in programmable logic control, industrial PC peripheral input/output, and numerical control machines.
