CL220 Simple, 220V, 20mA, Temperature-Compensated, Constant-Current, LED Driver IC Features Description 5.0 to 220V operating range (V ) A-B CL220 is a high voltage, temperature-compensated, 20mA 10% at 5.0 - 160V 20mA constant current regulator. The device operates 0.01% / C typical temperature coefficient at up to 220V, and is accurate to 10% over a 5 - 160V range. The device can be used as a two-terminal, con- Packages Types: stant-current source or a constant-current sink. - TO-252 (D-PAK) -TO-220 A typical application for CL220 is to drive LEDs with a Can be paralleled for higher current constant current of 20mA. Multiple CL220s can also be used in parallel to provide higher currents such as Applications 40mA, 60mA, 80mA, and so on. The device is available in the TO-252 (D-PAK) and TO-220 packages. Industrial lamp indicators Signage Accent lighting Constant current source Constant current sink 2015 Microchip Technology Inc. DS20005413A-page 1CL220 Package Type VB VB NC VA NC VA VB TO-220 TO-252 (D-PAK) See Table 2-1 for pin information Typical Application Circuit VA Functional Circuit Diagram VA CL220 Up to 220V 10nF Control Circuit + V VB LED(TOTAL) and Temperature Compensation + I LED V 20mA LED(TOTAL) VB Functional Circuit Diagram Equivalent Block Diagram VA VA Control Circuit 20mA and Temperature Compensation VB VB DS20005413A-page 2 2015 Microchip Technology Inc.