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LM3509 データシート(PDF) 10 Page - Texas Instruments |
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LM3509 データシート(HTML) 10 Page - Texas Instruments |
10 / 30 page LM3509 SNVS495D – FEBRUARY 2007 – REVISED MAY 2013 www.ti.com Typical Performance Characteristics (continued) VIN = 3.6V, LEDs are OSRAM (LW M67C), COUT = 1µF (LED Mode), COUT = 2.2µF (OLED Mode), CIN = 1µF, L = TDK VLF4012AT-100MR79, (RL = 0.3Ω), RSET = 8.06kΩ, UNI = '1', ILED = ISUB + IMAIN, TA = +25°C unless otherwise specified. Shutdown Current Switching Supply Current vs. vs. VIN VIN Figure 21. Figure 22. LED Current Matching LED Current Accuracy vs. vs CODE(1) CODE (UNI = '1', RSET = 12kΩ, TA = -40°C to +85°C) (RSET = 12kΩ±0.05%) Figure 23. Figure 24. LED Current ILED vs vs CODE Current Source Headroom Voltage (IMAIN, ISUB, IIDEAL, RSET = 12kΩ±0.05%) (VIN = 3V, UNI = '0') Figure 25. Figure 26. (1) The matching specification between MAIN and SUB is calculated as 100 × ((IMAIN or ISUB) - IAVE) / IAVE. This simplifies out to be 100 × (IMAIN - ISUB)/(IMAIN + ISUB). 10 Submit Documentation Feedback Copyright © 2007–2013, Texas Instruments Incorporated Product Folder Links: LM3509 |
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同様の説明 - LM3509 |
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