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AS3676 Datasheet(PDF) 88 Page - ams AG |
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AS3676 Datasheet(HTML) 88 Page - ams AG |
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88 / 92 page  www.austriamicrosystems.com/AS3676 1v1-4 87 - 91 AS3676 Datasheet - E x t e r n a l C o m p o n e n ts As system efficiency is depending on LED configurations, external components and operating conditions, see austria- microsystems application note ‘Mobile Backlight Selection Guide 1vx.pdf’ for optimizing efficiency and components size (coil L1, transistor Q1, diode D1). Q1 (+ D1) Fairchild FDFMA3N109 Integrated NMOS and Schottky diode MicroFET 2x2mm Fairchild FDFME3N311ZT or OnSemi NTLUF4189NZ Integrated NMOS and Schottky diode; recommended for configurations up to 12 LEDs MicroFET 1.6x1.6mm D2:D20 LED As required by application 1. in 1/100 inch (unless otherwise specified) 2. Specified >1µF at 20V; use up to 20V DCDC output voltage 3. Results in improved efficiency compared to 10µH 4. For highest efficiency Table 122. External Components List Part Number Min Value Typ Max tol. (min.) Rating (max) Notes Package (min.) 1 |
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