HL5502

The HL5502 is high voltage protection wireless coil switch to protect system against positive and negative COIL pin voltage faults up to ±40V, and features low switch ON resistance, 90mΩ (typ). The device features two internal MOSFETs connected in series, therefore two power pins, COIL and AC, are completely isolated when it is disabled. HL5502 employs floating gate drive architecture to pass DC or AC up to 1MHz from either of COIL or AC pins. HL5502 is controlled through ENn pin and EN_POL pin. When ENn pin is driven low and EN_POL is tied to GND, the internal power FETs are enabled if either of VIN or VCC is higher than its under-voltage lockout threshold.The HL5502 is available in 16-pin WL-CSP package.