Product Summary

The L4981AD is a power factor corrctor. It provides the necessary features to achieve a very high power factor up to 0.99. Realized in BCD 60II technology this power factor corrector (PFC) pre-regulator contains all the control functions for designing a high efficiency-mode power supply with sinusoidal line current consumption.

Parametrics

L4981AD absolute maximum ratings: (1)VCC: selflimitV; (2)IGDRV: 2A; (3)VGDRV: -1V; (4)VVA-OUT: -0.3 to 8.5V; (5)IAC: 5mA; (6)VCA-OUT: -0.3 to 8.5V; (6)ICOSC: 15mA; (7)IFREQ-MOD: 5mA.

Features

L4981AD features: (1)control boost pwm up to 0.99PF; (2)limit line currentdstortion to <5%; (3)universal input mains; (4)feed forward line and load regulation; (5)average current mode pwm for minimum noise sensitivity;(6)high current bipolar and dmos totem pole output.

Diagrams

L4981AD block diagram

Image Part No Mfg Description Data Sheet Download Pricing
(USD)
Quantity
L4981AD
L4981AD

STMicroelectronics

Power Factor Correction ICs Very High Power

Data Sheet

0-1: $1.94
1-10: $1.88
10-100: $1.72
100-250: $1.54
L4981AD013TR
L4981AD013TR

STMicroelectronics

Power Factor Correction ICs Very High Power

Data Sheet

0-1: $2.62
1-10: $2.11
10-100: $1.84
100-250: $1.54