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LM3630ATMX Folha de dados(PDF) 6 Page - Texas Instruments |
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LM3630ATMX Folha de dados(HTML) 6 Page - Texas Instruments |
6 / 45 page 40 50 60 70 80 90 0 20 40 60 80 100 Brightness % Boost LED C059 VIN = 3.6V Freq = 500kHz LED = 2p6s L = 22uH 40 50 60 70 80 90 0 20 40 60 80 100 Brightness % Boost LED C060 VIN = 4.2V Freq = 500kHz LED = 2p6s L = 22uH 40 50 60 70 80 90 0 20 40 60 80 100 Brightness % Boost LED C001 VIN = 2.5V Freq = 500kHz LED = 2p6s L = 22uH 40 50 60 70 80 90 0 20 40 60 80 100 Brightness % Boost LED C058 VIN = 2.7V Freq = 500kHz LED = 2p6s L = 22uH LM3630A SNVS974 – APRIL 2013 www.ti.com ELECTRICAL CHARACTERISTICS (1) (continued) Limits in standard typeface are for TA = 25°C, and limits in boldface type apply over the full operating ambient temperature range ( −40°C ≤ TA ≤ +85°C). Unless otherwise specified, VIN = 3.6V. Symbol Parameter Condition Min Typ Max Units I2C-Compatible Timing Specifications (SCL, SDA) (3) t1 SCL (Clock Period) 2.5 µs Data in Setup Time to t2 100 SCL High Data in Setup Time to t3 0 SCL Low ns SDA Low Setup Time to t4 100 SCL Low (Start) SDA High Hold Time to t5 100 SCL High (Stop) (3) SCL and SDA must be glitch-free in order for proper brightness to be realized. TYPICAL PERFORMANCE CHARACTERISTICS TA = +25°C, ILED Full Scale = 20.0mA unless specified otherwise. Boost and LED Efficiency at VIN = 2.5V, 2p6s, Freq=500kHz, Boost and LED Efficiency at VIN = 2.7V, 2p6s, Freq=500kHz, L=22uH L=22uH Figure 3. Figure 4. Boost and LED Efficiency at VIN = 3.6V, 2p6s, Freq=500kHz, Boost and LED Efficiency at VIN = 4.2V, 2p6s, Freq=500kHz, L=22µH L=22uH Figure 5. Figure 6. 6 Submit Documentation Feedback Copyright © 2013, Texas Instruments Incorporated Product Folder Links: LM3630A |
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