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MP3304CDD 数据表(PDF) 9 Page - Monolithic Power Systems |
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MP3304CDD 数据表(HTML) 9 Page - Monolithic Power Systems |
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9 / 12 page ![]() MP3304 –36V, 1.3A, STEP-UP WHITE LED DRIVER WITH HIGH FREQUENCY TRUE PWM DIMMING MP3304 Rev. 0.91 www.MonolithicPower.com 9 4/19/2010 MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited. © 2010 MPS. All Rights Reserved. TYPICAL APPLICATION CIRCUITS MP3304C VIN 5V Enable/ Dimming Control LED1 LED2 LED3 LED28 LED29 LED30 IN EN GND LED ISET SW String 1 String 10 ... C1 10uF C2 2.2uF L1 2uH D1 B0530 Figure 4 — Driving 30 WLEDs (3 WLEDs in Series and 10 Strings Paralleled) with 5V Input Voltage MP3304A SW IN ISET LED PGND GND EN VIN Bias EN GND C2 4.7uF 16V C1 4.7uF 16V L1 4.7uH 5V D1 B0540 C5 0.47uF 50V LED+ LED- C3 0.1uF C4 NS R4 NS R3 3.32 1% R2 0 R1 100 U1 JP1 5 8 7 6 2 1 3 Figure 5 — Driving 27 WLEDs (9 WLEDs in Series and 3 Strings Paralleled) with 5V Input Voltage |
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