Update: 30 September, 2023
The L4981A L4981B power factor corrector controller can achieve a power factor of up to 0.99. It also limits line current distortion to less than 5%. The chip is made using BCD 60II technology and has all the features of a power factor corrector (PFC) pre-regulator, including line and load regulation, average current mode PWM, high current bipolar and DMOS totem pole output, low start-up current (typ. 0.3 mA), undervoltage lockout with hysteresis and programmable turn-on threshold, overvoltage, overcurrent protection, precise 2% on-chip reference, and external soft start.
File format: PDF
Size: -
MD5 Checksum: F5CE2A60DDD7C01A3E421786F46EE7E0
Publication date: 10 August, 2012
Downloads: -
PDF Link: ST L4981A L4981B POWER FACTOR CORRECTOR handbook PDF