LM5050-2 Datasheet | Texas Instruments

.ti. SNVS679B - NOVEMBER 2010 - REVISED MARCH 2013 LM5050-2 High Side OR-ing FET Controller Check for Samples: LM5050-2 Features - 2 Wide Operating Input Voltage Range: +6V to +75V - +100 Volt Transient Capability - Charge Pump Gate Driver for External N- Channel MOSFET - MOSFET Diagnostic Test Mode - Fast 50ns Response to Current Reversal - 2A Peak Gate Turn-off Current - Minimum VDS Clamp for Faster Turn-off - Package: SOT-6 (Thin SOT23-6) APPLICATIONS - Active OR-ing of Redundant (N+1) Power Supplies DESCRIPTION The LM5050-2 High Side OR-ing FET Controller operates in conjunction with an external MOSFET as an ideal diode rectifier when connected in series with a power source. This OR-ing controller allows MOSFETs to replace diode rectifiers in power distribution networks thus reducing both power loss and voltage drops. The LM5050-2 controller provides charge pump gate drive for an external N-Channel MOSFET and a fast response parator to turn off the FET when current flows in the reverse direction. The LM5050-2 can connect power supplies ranging from +6V to +75V and can withstand transients up to +100V. The LM5050-2 also provides a FET test diagnostic mode which allows the system controller to test for shorted MOSFETs. Typical Application Circuits VIN VLOGIC Status Shutdown +6V to +75V RPULL-UP Low= OK, High= Fault Low= FET On, High= FET Off IN n...