CL2K4-G Microchip

CL2 Simple 90V, 20mA, Temperature Compensated, Constant-Current LED Driver IC Features Description 5.0 to 90V operating range (V ) A-B CL2 is a high voltage, temperature compensated, con- 20 mA 10% at 5.0 - 90V stant-current source. The device is trimmed to provide 0.01%/C typical temperature coefficient a constant current of 20 mA 10% at an input voltage of 590V. The device can be used as a two-terminal, Available in TO-243AA (SOT-89), TO-252(D- constant-current source or constant-current sink. PAK), & TO-92 packages Can be paralleled for higher current A typical application for the CL2 is to drive LEDs with a constant current of 20 mA. Multiple CL2s can also be Applications used in parallel to provide higher currents such as 40 mA, 60 mA or 80 mA. The device is available in TO- LED driver 243AA (SOT-89), TO-252 (D-PAK), and TO-92 pack- Industrial lamp indicators ages. Signage Accent lighting Automotive Constant current source Constant current sink Package Type VB VB VB VA N/C N/C VB VA VA NC TO-252 (D-PAK) TO-243AA (SOT-89) TO-92 See Table 2-1 for pin information 2015 Microchip Technology Inc. DS20005448A-page 1CL2 Typical Application Circuit VA Functional Circuit Diagram VA CL2 Up to 90V 100nF Control Circuit + V VB LED(total) and Temperature + Compensation I LED V LED(total) <20mA VB - DS20005448A-page 2 2015 Microchip Technology Inc.