STMICROELECTRONICS ISO808QTR-1 Power Load Distribution Switch, Active Low, 8 Outputs, 36 V, 0.125 Ohm, TFQFPN-EP-32

ISO808QTR-1 is a galvanic isolated octal high-side power solid state relay for high inductive loads. Each driver contains 2 independent galvanic isolated voltage domains. The IC is intended for driving any kind of load with one side connected to ground. An additional case temperature sensor protects the whole chip against overtemperature (OVC event): if the case temperature triggers the TCSD threshold then overloaded channels are turned OFF and restart only when case temperature decreased down to the reset threshold (TCR). Non overloaded channels continue to operate normally. Other embedded functions are loss of ground protection, VCC and VDD UVLOs (with hysteresis), and watchdog. Typical applications are programmable logic control, industrial PC peripheral input/output, numerical control machines, and drivers for all type of loads (resistive, capacitive, inductive).

• Fast demagnetization of inductive loads VDEMAG(TYP) = VCC - 54V
• Low process and logic sides supply current, loss of GND and VCC protections
• Under-voltage shut down with auto restart and hysteresis
• Logic side 5V and 3.3V TTL/CMOS and MCU compatible I/Os
• Common output enable/disable pin
• Reset function for IC outputs disable, high common mode transient immunity
• Per-channel over-temperature protection with thermal independence of separate channels
• Case over-temperature protection, over-voltage protection (VCC clamping)
• Meets IEC 61000-4-2, IEC 61000- 4-4, IEC 61000-4-5 and IEC 61000-4-8, UL1577 and UL508 certified
• TFQFPN32 package, -40 to 150°C storage temperature