onsemi NCL30085
The NCL30085 is a power factor corrected flyback controller 1 targeting isolated and non−isolated constant current LED drivers. The controller operates in a quasi−resonant mode to provide optimal SOIC−8 NB CASE 751 efficiency. This MARKING DIAGRAM removes the need for secondary side feedback circuitry, biasing and an 8 optocoupler.FEATURES
● Quasi−resonant Peak Current−mode Control Operation W = Work Week G = Pb-Free Package● Constant Current Control with Primary Side Feedback
● Tight LED Constant Current Regulation of ±2% Typical
● Power Factor Correction PIN CONNECTIONS 1 ZCD VCC
● 3 Step Dimming (70/25/5%) VS DRV
● Line Feedforward for Enhanced Regulation Accuracy COMP GND
● Low Start−up Current (10 mA typ.)
● Wide Vcc Range
● 300 mA / 500 mA Totem Pole Driver with 12 V Gate Clamp SD CS (Top View)
● Robust Protection
FEATURES
♦ OVP on VCC ♦ Programmable Over Voltage / LED Open Circuit Protection ORDERING INFORMATION See detailed ordering and shipping information in the package dimensions section on page 26 of this data sheet. ♦ Cycle−by−cycle Peak Current Limit ♦ Winding Short Circuit Protection ♦ Secondary Diode Short Protection● Pb−Free, Halide−Free MSL1 Product ♦ Output Short Circuit Protection ♦ Current Sense Short Protection ♦ User Programmable NTC Based Thermal Foldback Typical
APPLICATIONS
● Integral...