BPS BP3337DA
BP3337DA is a high PF PSR constant current LED driver with high current accuracy. It is suitable for 90Vac-277Vac universal input. With internal THD optimizer, the THD of input current can be further reduced.GENERAL DESCRIPTION
It is suitable for 90Vac-277Vac universal input. BP3337DA realizes high PF by constant on time control. BP3337DA works in BCM mode, which can help to improve switching loss and EMC performance. BP3337DA adopts DIP-7 package. Feature● 90-277Vac universal input
● High PF low THD (PF>0.9,THD<15%)
● Two windings without auxiliary winding for isolated application
● High accuracy of current reference (+/-3%)
● Good line and load regulation
● Critical conduction mode
● Low operation current
● VCC UVLO
● Cycle by cycle current limitation
● Output open/short protection
● Thermal fold back
● DIP-7 package Application
● LED driver
● High-performance LED fixture BP3337DA_EN_DS_Rev.1.1 1 BPS Confidential – Customer Use Only 晶丰明源半导体 Typical Application AC BP3337DA High PF PSR LED Driver BP3337DA 7 VCC DRAIN 5 3 FB DRAIN 6 2 COMP 1 GND CS 4 Fig 1 Grounded isolated application with Three-winding transformer NP NS AC BP3337DA 7 VCC DRAIN 5 NA 3 FB DRAIN 6 2 COMP 1 GND CS 4 Fig 2 Fl...