Serial-Input Constant-Current Latched LED DriverA6275with Open LED Detection and Dot CorrectionALLOWABLE OUTPUT CURRENT AS A FUNC TION OF DUTY CYCLE (cont.)APackageLWPackage 100 100 V CE = 0.7 V V CE = 1 V V CE = 1 V 80 80 V CE = 2 V V CE = 2 V V CE = 3 V 60 60 V CE = 3 V V CE = 4 V 40 40 V CE = 4 V TA = +85°C TA = +85°C 20 V DD = 5 V 20 V DD = 5 V R θJA = 60°C/W R θJA = 94°C/W 0 0 0 20 40 60 80 100 0 20 40 60 80 100 DUTY CYCLE IN PER CENT DUTY CYCLE IN PER CENT Dwg. GP-062-1 Dwg. GP-062A TYPICAL CHARACTERISTICS 60 40 T 20 A = +25°C R EXT = 500 Ω 0 0 0.5 1.0 1.5 2.0 V CE IN VOLTS Dwg. GP-063 Allegro MicroSystems, Inc. 8 115 Northeast Cutoff Worcester, Massachusetts 01615-0036 U.S.A. 1.508.853.5000; www.allegromicro.com