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A8519KETTR-R 数据表(PDF) 32 Page - Allegro MicroSystems |
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A8519KETTR-R 数据表(HTML) 32 Page - Allegro MicroSystems |
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32 / 35 page ![]() Wide Input Voltage Range, High-Efficiency, Fault-Tolerant LED Driver A8519 and A8519-1 32 Allegro MicroSystems, LLC 115 Northeast Cutoff Worcester, Massachusetts 01615-0036 U.S.A. 1.508.853.5000; www.allegromicro.com 47 µF Electrolytic 2.2 µF 10 µF 47 pF 10 µF 1 µF 100 pF 10 µH 68 nF 0.024 W 383 W 280 W 158 k W 10 k W 10 k W 11.8 k W 10 k W V= (4.5 to 40) V IN *optional APWM CLKOUT COMP ISET FSET AGND GND PGND VDD VDD PWM LED4 LED1 LED2 LED3 OVP VIN GATE SW VOUT FAULT VSENSE Q1 V> V OUT IN A8519 Figure 40: Schematic Showing Calculated Values from the Design Example Above |
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