STMicroelectronicsL4981AD013TR

The STMicroelectronics L4981AD013TR PFC Boost PWM Controller SO-20 SMD is an average-current-mode power-factor-correction controller for boost PFC stages in universal 85-265VAC power supplies.

Technical description

The L4981A is a fixed-frequency boost PFC controller with average-current-mode control, soft-start and overvoltage/overcurrent protection. The D013TR version is SO-20 SMD tape-and-reel.

Indicative applications

SMPS PFC front ends, telecom/industrial supplies and repair of active-PFC stages.

Compatibility note

Selection for repair or a new design must be based on the exact package and pinout, power-supply topology, voltage and current limits, and thermal conditions. Maximum capability depends on the application design.