SEN012 is a compact low-cost solution to eliminate losses in resistive signal paths connected between high-voltage rails and switching power supply controller(s). Examples include feed-forward or feedback signal paths connected to boost controllers in power factor corrected systems and feed-forward signal paths in two switch forward / LLC / half and full bridge converters.
The device is available in 2 channel versions according to the application’s requirements. The internal gate drive and protection circuitry provides gate drive signals to the internal 650 V MOSFETs in response to the voltage applied to the VCC pin. This simple configuration provides easy integration into existing systems by using the system VCC rail as an input to the SEN012.
The SEN012 uses a low cost compact SO-8 package to reduce PCB area while the pin configuration is designed to meet pin-pin fault conditions.
Eliminates significant standby losses
Disconnects unnecessary circuit blocks during standby, remote off, or light-load conditions
Ultra low leakage (maximum 1 mA) 650 V MOSFETs
<0.5 mW per channel during standby
Single component provides remote disconnect functionality
No external components or additional bias supply needed for remote-off
Integrates multiple disconnect MOSFETs, gate drive, and protection