Supertex inc. CL520 Linear, Fixed Constant Current LED Driver Features General Description 20mA 10% constant current drive The CL520 is a fixed, linear current regulator designed for driving LEDs at 20mA. With a maximum rating of 90V, it is able 1.0V dropout to withstand transients without the need for additional transient 90V rating for transient immunity protection circuitry. It is ideally suited for applications employing Temperature compensated single or multiple LEDs. 4.75 - 90V supply range The minimum dropout voltage of 1.0V accomodates extra Applications LEDs, permits lower supply voltages, and provides more efficient operation. Specialty lighting Low voltage signage The CL520 is offered in TO-252(D-PAK) and TO-92 packages. Typical Application Circuit V IN 4.75 90V 100nF 20mA VDD OUT 20mA Control GND CL520 Doc. DSFP-CL520 Supertex inc. A052013 www.supertex.comCL520 Ordering Information Pin Configurations Part Number Package Options Packing GND CL520K4-G TO-252 (D-PAK) 2000/Reel CL520N3-G TO-92 1000/Bag GND CL520N3-G P002 TO-92 2000/Reel VDD OUT CL520N3-G P003 TO-92 2000/Reel VDD OUT CL520N3-G P005 TO-92 2000/Reel TO-252 (D-PAK) TO-92 CL520N3-G P013 TO-92 2000/Reel CL520N3-G P014 TO-92 2000/Reel Product Marking -G denotes a lead (Pb)-free / RoHS compliant package Refer to P0xx Tape & Reel Specs for P002, P003, P005, P013, and P014 YY = Year Sealed Si YYWW TO-92 Taping Specifications and Winding Styles WW = Week Sealed CL520K4 L = Lot Number LLLLLLL = Green Packaging Absolute Maximum Ratings Package may or may not include the following marks: Si or Parameter Value TO-252 (D-PAK) Supply voltage, V -0.5V to +100V DD Output voltage, V -0.5V to +100V OUT SiCL YY = Year Sealed Operating junction temperature -40C to +125C 520 WW = Week Sealed YYWW Storage temperature -65C to +150C = Green Packaging Absolute Maximum Ratings are those values beyond which damage to the Package may or may not include the following marks: Si or device may occur. Functional operation under these conditions is not implied. Continuous operation of the device at the absolute rating level may affect TO-92 device reliability. All voltages are referenced to device ground.. Typical Thermal Resistance Package ja O TO-252 (D-PAK) 81 C/W* O TO-92 132 C/W* * Mounted on JEDEC test PCB (2s 2p) Recommended Operating Conditions (all voltages with respect to GND pin) Sym Parameter Min Typ Max Units Conditions V Supply voltage 4.75 - 90 V --- DD 1 V Voltage at OUT pin 1.0 - 90 V --- OUT o T Junction temperature -40 - 125 C --- J C V bypass capacitor 100 - - nF DD DD Doc. DSFP-CL520 Supertex inc. A052013 2 www.supertex.com