Serial-Input Constant-Current Latched LED DriverA6275with Open LED Detection and Dot CorrectionALLOWABLE OUTPUT CURRENT AS A FUNC TION OF DUTY CYCLEA PackageLW Package 100 100 V CE = 2 V V CE = 1 V V CE = 2 V V CE = 3 V 80 80 V CE = 3 V V CE = 4 V 60 60 V CE = 4 V 40 40 TA = +25°C TA = +25°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-062-5 Dwg. GP-062-4A 100 100 V CE = 1 V V CE = 2 V V CE = 2 V 80 80 V CE = 3 V V CE = 3 V V CE = 4 V 60 60 V CE = 4 V 40 40 TA = +50°C TA = +50°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-062-3 Dwg. GP-062-2A Allegro MicroSystems, Inc. 7 115 Northeast Cutoff Worcester, Massachusetts 01615-0036 U.S.A. 1.508.853.5000; www.allegromicro.com