BP3337DB Datasheet | BPS

Low PF Flyback PSR LED Driver Description BP3337DB is a low PF PSR (Primary Side Regulation) constant current LED driver with high current accuracy. Along with Boost pre-converter, BP3337DB can provide two-stage isolated flicker-free light output. BP3337DB provides with accurate constant on time control and current limit to control primary side current in case of input voltage dip. So, transform saturation is avoided to improve system reliability. BP3337DB works in BCM mode, which can help to reduce switching loss and improve EMC performance. BP3337DB provides with multiple protections, such as output over voltage protection (OVP), output short circuit protection (SCP), cycle-by-cycle over current protection (OVP) and thermal fold back. BP3337DB adopts DIP-7 package. Features - HV JFET inside to deliver fast start-up - High accuracy of current reference (+/-3%) - Good load regulation - Critical conduction mode - Low operating current - VCC UVLO - Cycle-by-cycle current limitation - Output open/short protection - Thermal fold back - DIP-7 Package Applications - LED panel light - LED downlight DIP-7 Package Typical Application DC+ NA DC- 7 VCC DRAIN 5 3 FB DRAIN 6 2 P 1 GND CS...