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LP8551 Datasheet(PDF) 10 Page - Texas Instruments |
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LP8551 Datasheet(HTML) 10 Page - Texas Instruments |
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10 / 46 page  0 10 20 30 40 50 60 70 80 90 100 0 10 20 30 40 50 RISET (k ) CURRENT[7:0] = FFh CURRENT[7:0] = 7Fh 6 8 10 12 14 16 18 20 0 200 400 600 800 1,000 1,200 VBATT (V) LOAD = 150 mA VBOOST = 30V VBOOST = 35V VBOOST = 40V LP8551 SNVS673E – APRIL 2010 – REVISED SEPTEMBER 2014 www.ti.com 7.12 Typical Characteristics Unless otherwise specified: VBATT= 12 V, CVLDO= 1 μF, L1 = 33 μH, CIN= 10 μF, COUT= 10 μF. ƒLED= 9.6 kHz ƒLED= 9.6 kHz L1 = 15 μH Figure 2. LED Drive Efficiency Figure 3. LED Drive Efficiency Figure 5. Battery Current Figure 4. Boost Converter Efficiency Figure 6. ILED vs. RISET Figure 7. Boost Line Transient Response 10 Submit Documentation Feedback Copyright © 2010–2014, Texas Instruments Incorporated Product Folder Links: LP8551 |
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