Supertex inc. CL520 Linear, Fixed Constant Current LED Driver General Description Features The CL520 is a fixed, linear current regulator designed for driving LEDs at 20mA. With a maximum rating of 90V, it is able to withstand transients without the need for additional transient protection circuitry. It is ideally suited for applications employing single or multiple LEDs. ►► 20mA ±10% constant current drive ►► 1.0V dropout ►► 90V rating for transient immunity ►► Temperature compensated ►► 4.75 - 90V supply range The minimum dropout voltage of 1.0V accomodates extra LEDs, permits lower supply voltages, and provides more efficient operation. Applications ►► Specialty lighting ►► Low voltage signage The CL520 is offered in TO-252(D-PAK) and TO-92 packages. Typical Application Circuit VIN 4.75 – 90V 100nF 20mA OUT VDD Control CL520 Doc.# DSFP-CL520 A052013 20mA GND Supertex inc. www.supertex.com CL520 Pin Configurations Ordering Information Part Number Package Options Packing CL520K4-G TO-252 (D-PAK) 2000/Reel CL520N3-G TO-92 1000/Bag CL520N3-G P002 TO-92 2000/Reel CL520N3-G P003 TO-92 2000/Reel CL520N3-G P005 TO-92 2000/Reel CL520N3-G P013 TO-92 2000/Reel CL520N3-G P014 TO-92 2000/Reel GND OUT VDD Package may or may not include the following marks: Si or Value Output voltage, VOUT -0.5V to +100V Operating junction temperature -40°C to +125°C Storage temperature -65°C to +150°C YY = Year Sealed WW = Week Sealed L = Lot Number = “Green” Packaging Si YYWW CL520K4 LLLLLLL Absolute Maximum Ratings -0.5V to +100V TO-92 Product Marking Refer to ‘P0xx’ Tape & Reel Specs for P002, P003, P005, P013, and P014 TO-92 Taping Specifications and Winding Styles Supply voltage, VDD OUT TO-252 (D-PAK) -G denotes a lead (Pb)-free / RoHS compliant package Parameter GND VDD TO-252 (D-PAK) Si C L 5 2 0 YYWW Absolute Maximum Ratings are those values beyond which damage to the device may occur. Functional operation under these conditions is not implied. Continuous operation of the device at the absolute rating level may affect device reliability. All voltages are referenced to device ground.. YY = Year Sealed WW = Week Sealed = “Green” Packaging Package may or may not include the following marks: Si or TO-92 Typical Thermal Resistance Package θja TO-252 (D-PAK) 81OC/W* TO-92 132OC/W* * Mounted on JEDEC test PCB (2s 2p) Recommended Operating Conditions (all voltages with respect to GND pin) Sym Parameter Min Typ Max Units VDD Supply voltage 4.75 - 90 V --- VOUT Voltage at OUT pin1 1.0 - 90 V --- TJ Junction temperature -40 - 125 C --- CDD VDD bypass capacitor 100 - - Doc.# DSFP-CL520 A052013 2 o Conditions nF Supertex inc. www.supertex.com CL520 Electrical Characteristics (Over recommended operating conditions. TA = 25OC unless otherwise specified. All voltages with respect to GND pin) Sym Parameter IDD Current into VDD pin IOUT Current into OUT pin Min Typ Max - - 1.0 18 20 22 - - 22 Units Conditions mA mA --1.0V < VOUT < 90V VOUT <1.0V IOUT(OFF) Current into OUT pin with VDD pin open - - 10 µA VDD = open VDD(OFF) Voltage at VDD to shut off LED current - - 1.0 V IOUT < 10µA tON VDD applied on time - - 100 µs --- tOFF VDD removed off time - - 100 µs --- Current (Normalized to 25OC at VOUT = 1.0V) Temperature Effects 1.02 1.00 VOUT = 90V, 100ms VOUT = 1.0V 0.98 0.96 0.94 0.92 -40 -50 0 25 50 100 Junction Temperature (OC) 120 150 Application Circuits Seperate LED Supply Switched LED (VOUT may be higher or lower than VDD.) VIN 4.75 – 90V 100nF VDD Control OUT VDD 20mA Control GND Doc.# DSFP-CL520 A052013 VIN VDD IOUT OUT 20mA GND 3 Supertex inc. www.supertex.com CL520 Application Circuits Ground Referenced LEDs VIN VDD 100nF Control OUT 20mA VLED + 4.75V ≤ VIN ≤ VLED + 90V GND ILED = IOUT + IDD Pin Description Pin # TO-252 D-PAK (K4) TO-92 (N3) Name 1 1 VDD Supply voltage for the CL520. Bypass locally with a 100nF capacitor to ground. 3 2 OUT Constant current output (sink). 4 3 GND Circuit common. Doc.# DSFP-CL520 A052013 Description 4 Supertex inc. www.supertex.com CL520 3-Lead TO-252 D-PAK Package Outline (K4) b3 E A c2 E1 4 L3 θ1 D1 H D 1 2 3 L4 L5 Note 1 View B b2 b e Front View Side View Rear View Gauge Plane A1 Seating Plane L2 θ L L1 View B Note: 1. Although 4 terminal locations are shown, only 3 are functional. Lead number 2 was removed. Symbol Dimension (inches) A A1 b b2 b3 c2 D D1 E E1 MIN .086 .000* .025 .030 .195 .018 .235 .205 .250 .170 NOM - - - - - - .240 - - - MAX .094 .005 .035 .045 .215 .035 .245 .217* .265 .182* e .090 BSC H L .370 .055 - .060 .410 .070 L1 .108 REF L2 .020 BSC L3 L4 L5 θ θ1 .035 .025* .045 0 0O - - - - .050 .040 .060 10 O O 15O JEDEC Registration TO-252, Variation AA, Issue E, June 2004. * This dimension is not specified in the JEDEC drawing. Drawings not to scale. Supertex Doc. #: DSPD-3TO252K4, Version E041309. Doc.# DSFP-CL520 A052013 5 Supertex inc. www.supertex.com CL520 3-Lead TO-92 Package Outline (N3) D A Seating Plane 1 2 3 L c b e1 e Side View Front View E1 E 1 3 2 Bottom View Symbol Dimensions (inches) A b c D E E1 e e1 L MIN .170 .014† .014† .175 .125 .080 .095 .045 .500 NOM - - - - - - - - - MAX .210 .022† .022† .205 .165 .105 .105 .055 .610* JEDEC Registration TO-92. * This dimension is not specified in the JEDEC drawing. † This dimension differs from the JEDEC drawing. Drawings not to scale. Supertex Doc.#: DSPD-3TO92N3, Version E041009. (The package drawing(s) in this data sheet may not reflect the most current specifications. For the latest package outline information go to http://www.supertex.com/packaging.html.) Supertex inc. does not recommend the use of its products in life support applications, and will not knowingly sell them for use in such applications unless it receives an adequate “product liability indemnification insurance agreement.” Supertex inc. does not assume responsibility for use of devices described, and limits its liability to the replacement of the devices determined defective due to workmanship. No responsibility is assumed for possible omissions and inaccuracies. Circuitry and specifications are subject to change without notice. For the latest product specifications refer to the Supertex inc. (website: http//www.supertex.com) Supertex inc. ©2013 Supertex inc. All rights reserved. Unauthorized use or reproduction is prohibited. Doc.# DSFP-CL520 A052013 6 1235 Bordeaux Drive, Sunnyvale, CA 94089 Tel: 408-222-8888 www.supertex.com