Programmable protection and latched fault behavior
The MAX5977BETP+ integrates adjustable OVP, UVLO, and circuit breaker thresholds via external resistor dividers. The circuit breaker responds to overcurrent by latching off — the latched fault output stays asserted until the input power is cycled or the part is reset. This is the standard protection scheme for loads that must not auto-retry into a sustained fault (e.g., a motor drive with a stalled rotor or a shorted output capacitor). For applications that need automatic retry, a different controller in the family with auto-retry fault management would be the alternative.
Package and thermal considerations
The 20-TQFN (4x4 mm) with exposed pad is the footprint. The -40°C to 85°C operating range covers industrial environments.
Lifecycle and sourcing posture
The MAX5977BETP+ carries an Active product status per the manufacturer. The part is ROHS3 compliant. No LTB risk exists for this order code at this time.