DESCRIPTION

· The LM5050-1/-Q1 High Side OR-ing FET Controller works with an external MOSFET as an ideal diode rectifier in series with a power source.

· It enables MOSFETs to replace diode rectifiers in power distribution networks, reducing power loss and voltage drops.

· The controller provides charge pump gate drive for an external N-Channel MOSFET and a fast response comparator to turn off the FET during reverse current flow.

· It supports power supplies from 5V to 75V and can withstand transients up to 100V.

FEATURES

· Available in Standard and AEC-Q100 Qualified Versions (LM5050Q0MK-1 up to 150°C TJ and LM5050Q1MK-1 up to 125°C TJ).

· Functional safety capable with documentation to aid system design.

· Wide operating input voltage range: 1V to 75V (VBIAS required for VIN < 5V).

· 100-V transient capability.

· Charge pump gate driver for external N-Channel MOSFET.

· Fast 50-ns response to current reversal.

· 2-A peak gate turnoff current.

· Minimum VDS clamp for faster turnoff.

· Package: SOT-6 (Thin SOT-23-6).

APPLICATIONS

· Active OR-ing of redundant (N+1) power supplies.