Datasheet A6275 (Allegro) - 5

Serial-Input Constant-Current Latched LED Driver A6275 with Open LED Detection and Dot Correction ELECTRICAL CHARACTERISTICS at TA = +25°C, VDD = 5 V (unless otherwise noted). Limits Characteristic Symbol Test Conditions Min. Typ. Max. Unit
Supply Voltage Range VDD Operating 4.5 5.0 5.5 V Undervoltage Lockout VDD(UV) VDD = 0 → 5 V 3.4 – 4.0 V Output Current IO VCE = 0.7 V, REXT = 250 Ω 64.2 75.5 86.8 mA (any single output) VCE = 0.7 V, REXT = 470 Ω 34.1 40.0 45.9 mA Output Current Matching ∆IO 0.4 V ≤ VCE(A) = VCE(B) ≤ 0.7 V: (difference between any REXT = 250 Ω – ±1.5 ±6.0 % two outputs at same V CE) REXT = 470 Ω – ±1.5 ±6.0 % Output Leakage Current ICEX VOH = 15 V – 1.0 5.0 μA Logic Input Voltage VIH 0.7VDD – VDD V VIL GND – 0.3VDD V SERIAL DATA OUT VOL IOL = 500 μA – – 0.4 V Voltage VOH IOH = -500 μA 4.6 – – V Input Resistance RI ENABLE Input, Pull Up 150 300 600 kΩ LATCH Input, Pull Down 100 200 400 kΩ Supply Current IDD(OFF) REXT = open, VOE = 5 V – 0.8 1.4 mA REXT = 470 Ω, VOE = 5 V 3.5 6.0 8.0 mA REXT = 250 Ω, VOE = 5 V 6.5 11 15 mA IDD(ON) REXT = 470 Ω, VOE = 0 V 5.0 10 14 mA REXT = 250 Ω, VOE = 0 V 8.0 16 24 mA Typical Data is at VDD = 5 V and is for design information only. Allegro MicroSystems, Inc. 4 115 Northeast Cutoff Worcester, Massachusetts 01615-0036 U.S.A. 1.508.853.5000; www.allegromicro.com