NCP392B

NCP392B Adjustable Front End Overvoltage Protection Controller with Protected Vbus Output The NCP392B is an overvoltage front end protection and be able to disconnect the systems from its output pin in case wrong input operating conditions are detected, up to +28 V. Due to this device using internal NMOS, no external device is necessary, reducing the system cost and the PCB area of the application board. Internal OVLO threshold is available, or can be adjusted if external resistor bridge is used (A version). At power up (EN pin = low level), the Vout turns on tstart time after internal timer elapsed. Additional timer option is available in the B version for OTG supporting. A LDO, internally connected on IN pin, provided a protected output voltage even if an over voltage is present on IN pin. Features Over−voltage Protection Up to + 28 V On−chip Low RDS(on) NMOS Transistors: Typical 34 mW Over−voltage Lockout (OVLO) Externally Adjustable OVLO (A Version) Protected VBUS Indicator Output VBUS_DET Internal 15 ms Startup Delay 100 ms Start Up Delay Option (B Version) Shutdown EN Input + 100 V Surge Capability, in Compliance with IEC61000−4−5 Standard Compliance to IEC61000−4−2 (Level 4) 8 kV (Contact) 15 kV (Air) ESD Ratings: Machine Model = B (200 V) Human Body Model = 2 (2 kV) CSP−12 package 1.3 x 2.0 mm, 0.4 mm Pitch This is a Pb−Free Device Typical Applications Cell Phones Tablets Camera Phones Digital Still Cameras Personal Digital Applica...