Supertex inc. CL220 Simple, 220V, 20mA, Temperature-Compensated, Constant Current, LED Driver IC Features ►► ►► ►► ►► ►► 5.0 to 220V operating range (VA-B) 20mA ±10% at 5.0 - 160V 0.01% / °C typical temperature coefficient Available in TO-252 (D-PAK) and TO-220 packages Can be paralleled for higher current The Supertex CL220 is a high voltage, temperaturecompensated, 20mA constant current regulator. The device operates at up to 220V, and is accurate to ±10% over a 5.0 - 160V range. The device can be used as a two terminal constant current source or constant current sink. A typical application for the CL220 is to drive LEDs with a constant current of 20mA. Multiple CL220s can also be used in parallel to provide higher currents such as 40mA, 60mA, 80mA, and so on. The device is available in the TO252 (D-PAK) and TO-220 packages. Applications ►► ►► ►► ►► ►► General Description Industrial lamp indicators Signage Accent lighting Constant current source Constant current sink Typical Application Circuit VA Functional Circuit Diagram CL220 Up to 220V + VLED(TOTAL) 10nF VB + ILED 20mA VLED(TOTAL) VA Control Circuit and Temperature Compensation VB – Supertex inc. ● 1235 Bordeaux Drive, Sunnyvale, CA 94089 ● Tel: 408-222-8888 ● www.supertex.com CL220 Ordering Information Device Package Options TO-252 (D-PAK) TO-220 CL220K4-G CL220N5-G CL220 -G indicates package is RoHS compliant (‘Green’) Pin Configurations VB VB Absolute Maximum Ratings Parameter Value Operating voltage, VA-B 240V Operating junction temperature, TJ -40°C to +125°C Storage temperature, TS -55°C to +150°C VA NC VA TO-252 (D-PAK) NC VB TO-220 (front view) (front view) Product Marking 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 L = Lot Number = “Green” Packaging Si YYWW CL220K4 LLLLLLL Packages may or may not include the following marks: Si or Pin Designation TO-252 (D-PAK) Pin Description VA Current flows into this pin. VB Current flows out of this pin. Top Marking CL220N5 LLLLLLLLL YYWW L = Lot Number YY = Year Sealed WW = Week Sealed = “Green” Packaging Packages may or may not include the following marks: Si or TO-220 Thermal Characteristics Guaranteed by design – not production tested Sym Parameter Min Typ Max θjc Thermal resistance, junction to case TO-252 (D-PAK) - 6.3 - TO-220 - 8.3 - θja Thermal resistance, junction to ambient TO-252 (D-PAK) - 78 - TO-220 - 70 - Supertex inc. Units Conditions C/W --- O C/W O Soldered to 2.0cm2 exposed copper free air area ● 1235 Bordeaux Drive, Sunnyvale, CA 94089 ● Tel: 408-222-8888 ● www.supertex.com 2 CL220 Electrical Characteristics (T = 25°C unless otherwise specified) j Sym Parameter Min Typ Max Units VA-B Operating voltage 5.0 - 220 V IA-B temperature coefficient - 0.01 - %/OC Dynamic resistance - 300 - kΩ 18 20 22 18 - 25 - - 22 ΔIA-B/ΔT RA-B IAB Output current Conditions --VA-B = 45V, Tj = -40OC to +100OC --VAB = 4.0 - 160V mA VAB = 160 - 220V (Fig. 4) VAB = 0 - 4.0V IOS Turn-on overshoot current - 25 - mA VT = 45V (Fig. 5) tOS Overshoot duration - 1 - µs VT = 45V (Fig. 5) tDLY Turn-on delay - 10 - µs VT = 45V (Fig. 5) tRISE Turn-on rise time - 200 - ns VT = 45V (Fig. 5) Fig. 1 Functional Circuit Diagram VA Fig. 2 Equivalent Block Diagram VA Control Circuit and Temperature Compensation 20mA VB VB Fig. 3 Temperature Characteristics Current, normalized to 25°C 1.02 5V 45V 1.01 90V 1.00 0.99 0.98 -55 -35 -15 5 25 45 65 85 105 125 145 Junction Temperature (°C) Supertex inc. ● 1235 Bordeaux Drive, Sunnyvale, CA 94089 ● Tel: 408-222-8888 ● www.supertex.com 3 CL220 Fig. 4 Output Characteristics 30 25 IA-B (mA) 20 15 10 5 scale change 0 0 5 10 15 20 60 100 140 180 VA-B (V) Fig. 5 Timing Diagram VT VA-B 0V tDLY tRISE tOS Turn-on overshoot due to start-up characteristics of internal circuitry IOS 100% 90% IA-B 0mA 10% Inrush spike due to charging of parasitic capacitances and dV/dt CDG feed-thru Supertex inc. ● 1235 Bordeaux Drive, Sunnyvale, CA 94089 ● Tel: 408-222-8888 ● www.supertex.com 4 220 CL220 Fig. 6 Timing Test Circuit VT IA-B 1.0µF film CL220 Fig. 7 CL220 for Multiple LED Strings CL220 Up to 220V +VLED(TOTAL) 10nF VA VA CL220 VB VA CL220 VB CL220 VB VA VB + ILED 20mA ILED 20mA ILED 20mA ILED 20mA VLED(TOTAL) – Fig. 8 CL220 for Higher Current CL220 Up to 220V +VLED(TOTAL) 10nF VA VB CL220 VA VA CL220 VB VB + ILED 60mA VLED(TOTAL) – Supertex inc. ● 1235 Bordeaux Drive, Sunnyvale, CA 94089 ● Tel: 408-222-8888 ● www.supertex.com 5 CL220 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 b2 Front View View B b e 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) MIN A A1 b b2 b3 c2 D D1 E E1 .086 .000* .025 .030 .195 .018 .235 .205 .250 .170 NOM - - - - - - .240 - - - MAX .094 .005 .035 .045 .215 .035 .245 .217* .265 .200* e .090 BSC H L .370 .055 - .060 .410 .070 L1 .108 REF L2 .020 BSC θ θ1 .035 0 0O - - - .040 .060 10 L3 L4 L5 .035 .025* .050 JEDEC Registration TO-252, Variation AA, Issue E, June 2004. * This dimension is not specified in the JEDEC drawing. † This dimension differs from the JEDEC drawing. Drawings not to scale. Supertex Doc. #: DSPD-3TO252K4, Version F040910. Supertex inc. ● 1235 Bordeaux Drive, Sunnyvale, CA 94089 ● Tel: 408-222-8888 ● www.supertex.com 6 † O O 15O CL220 3-Lead TO-220 Package Outline (N5) A E2 E ΦP Seating Plane A1 A Thermal Pad E Q H1 4 D2 D D1 Chamfer Optional 1 2 3 E1 L View B A2 c e Front View A Side View 1 View A - A 3 2 L1 b b2 View B Symbol Dimension (inches) MIN A A1 A2 b b2 c D D1 D2 E E1 E2 .140 .020 .080 .015 .045 .012† .560 .326† .474† .380 .270 0.20* NOM - - - MAX .190 .055 .120 † .027 .057 - - - .040 .070 .024 .650 .361 † e .100 BSC - - - - .507 .420 .350 .030 H1 L L1 Q ΦP .230 .500 .200* .100 .139 - - - - - .270 .580 .250 .135 .161 JEDEC Registration TO-220, Variation AB, Issue K, April 2002. * This dimension is not specified in the JEDEC drawing. † This dimension differs from the JEDEC drawing. Drawings not to scale. Supertex Doc. #: DSPD-3TO220N5, Version C041009. (The package drawings 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. ©2012 Supertex inc. All rights reserved. Unauthorized use or reproduction is prohibited. Doc.# DSFP-CL220 A021312 1235 Bordeaux Drive, Sunnyvale, CA 94089 Tel: 408-222-8888 www.supertex.com 7