BW7381 Datasheet | Bruckewell Technology

Universal High Brightness LED Driver Features Universal Rectified 90VAC to 264VAC Input Voltage Range Built-in Active Power Factor Correction Technique Low THD, meet with IEC-61000-3-2 Class-C High Efficiency Application B B uilt-in Output Short Circuit Protection with Auto-Recovery uilt-in Output Over Voltage Protection with Auto-Recovery Built-in Gate Clamp C F E V C B ycle-by-cycle Current Limit ail-Safe, Output is not subjected to line voltage if the MOSFET fails. xcellently Accurate Constant Current ery Tight Line and Load Regulation onstant Off-Time uck or Buck-Boost Configuration DESCRIPTION The BW7381 is a controller for off-line LED converter. The BW7381 operate with constant off-time, peak current mode control with active power factor correction function. The controller senses real-time switch current to cycle-by-cycle current limit. Cycle-by-cycle current limit a t t he C S p in e nsure a safe operation during short-circuit at the output. It can be configured in either buck-boost (Figure1) or buck (Figure2) application circuit. T he d river output voltage is limited to 19V to protect external power MOSFET. The controller also monitors integrated actual LED current to perform the excellent line and load regulation. The controller makes the inductor current to follow the shape of input voltage to perform high power factor and low THD solution. The protection. BW7381 provides plete protection Features such as short-circuit and open-circuit APPLICATIONS A D S R C/DC LED Driver Application C/DC LED Driver Application ignage and Decorative LED Lighting esidential Lighting ORDER INFORMATION BW 7381- S8 R Bruckewell Circuit Type Shipping: R: Tape & Reel PIN CONFIGURATIONS (TOP VIEW) S8: SOP-8 Rev.1.4 Jan. 2013 http://.. Universal High Brightness LED Driver PIN DESCRIPTIONS Pin Name CS GND FLT P RT VIN VDD OUT Switch current sense pin. IC ground and reference. Actual output current sensing pin. Output pin of error...