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A8480EEJTR-T Datasheet(PDF) 7 Page - Allegro MicroSystems |
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A8480EEJTR-T Datasheet(HTML) 7 Page - Allegro MicroSystems |
7 / 17 page Boost Regulator for Display Bias or LED Driver A8480 6 Allegro MicroSystems, Inc. 115 Northeast Cutoff Worcester, Massachusetts 01615-0036 U.S.A. 1.508.853.5000; www.allegromicro.com Symbol Parameter Units/Division C1 IL 500 mA C2 VOUT1 10.0 V C3 VSW 10.0 V C4 VON1 2.00 V t time 1 ms Conditions Parameter Value VIN 3.3 V VOUT 18 V IOUT 80 mA Startup -3.00 -2.50 -2.00 -1.50 -1.00 -0.50 0 0.50 1.00 2.5 3.3 4.2 5 7 9 VIN (V) Line Regulation VOUT = 12 V Dimming Level (mA) 0 20 40 60 80 -3.00 -2.50 -2.00 -1.50 -1.00 -0.50 0 0.50 1.00 2.5 3.3 4.2 5 7 9 VIN (V) Line Regulation VOUT = 15 V Dimming Level (mA) 0 20 40 60 80 Line Regulation VOUT = 18 V -3.50 -3.00 -2.50 -2.00 -1.50 -1.00 -0.50 0 0.50 2.5 3.3 4.2 5 7 9 VIN (V) Dimming Level (mA) 0 20 40 60 80 t VOUT1 VON1 C3 C1 C2 IL VSW C4 Symbol Parameter Units/Division C1 IL 500 mA C2 VOUT1 10.0 V C3 VSW 10.0 V C4 VON1 2.00 V t time 5 ms Conditions Parameter Value VIN 3.3 V VOUT 18 V IOUT 80 mA Shutdown t VOUT1 VON1 C3 C1 C2 IL VSW C4 Performance Characteristics Tests performed using application circuit shown in figure 5 L1 =4.7 μH, CIN= COUT=1 μF, TA=25°C (unless otherwise noted) |
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