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LP8555 Datasheet(PDF) 8 Page - Texas Instruments |
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LP8555 Datasheet(HTML) 8 Page - Texas Instruments |
8 / 64 page 70 75 80 85 90 95 0 50 100 150 200 250 300 Total Load (mA) VIN = 3.0 V VIN = 3.7 V VIN = 4.2 V VIN = 5.4 V VIN = 7.4 V VIN = 8.4 V C005 Inductor: IHLP2525CZER6R8M01 70 75 80 85 90 95 0 20 40 60 80 100 Brightness (%) VIN = 3.0 V VIN = 3.7 V VIN = 4.2 V VIN = 5.4 V VIN = 7.4 V VIN = 8.4 V C006 Inductor: IHLP2525CZER6R8M01 70 75 80 85 90 95 0 50 100 150 200 250 300 Total Load (mA) VIN = 3.0 V VIN = 3.7 V VIN = 4.2 V VIN = 5.4 V VIN = 7.4 V VIN = 8.4 V C003 Inductor: IHLP2525CZER6R8M01 70 75 80 85 90 95 0 20 40 60 80 100 Brightness (%) VIN = 3.0 V VIN = 3.7 V VIN = 4.2 V VIN = 5.4 V VIN = 7.4 V VIN = 8.4 V C004 Inductor: IHLP2525CZER6R8M01 80 82 84 86 88 90 92 94 0 50 100 150 200 250 300 Total Load (mA) VIN = 3.0 V VIN = 3.7 V VIN = 4.2 V VIN = 5.4 V VIN = 7.4 V VIN = 8.4 V C001 Inductor: IHLP2525CZER6R8M01 80 82 84 86 88 90 92 0 20 40 60 80 100 Brightness (%) VIN = 3.0 V VIN = 3.7 V VIN = 4.2 V VIN = 5.4 V VIN = 7.4 V VIN = 8.4 V C002 Inductor: IHLP2525CZER6R8M01 LP8555 SNVS857 – FEBRUARY 2014 www.ti.com 7.7 Typical Characteristics Measured at room temperature unless otherwise noted. Maximum LED current set to 23 mA per string. DC-DC Efficiency is defined as POUT/PIN, where POUT is total output power measured from boost output(s). LED Drive Efficiency is defined as PLED/PIN , where PLED is actual power consumed in LEDs. L = 6.8 µH 12 x 6 LEDs +25°C L = 6.8 µH 12 x 6 LEDs +25°C Figure 2. Boost Efficiency Figure 3. LED Drive Efficiency L = 6.8 µH 12 x 7 LEDs +25°C L = 6.8 µH 12 x 7 LEDs +25°C Figure 4. Boost Efficiency Figure 5. LED Drive Efficiency L = 6.8 µH 12 x 7 LEDs -40°C L = 6.8 µH 12 x 7 LEDs -40°C Figure 6. Boost Efficiency Figure 7. LED Drive Efficiency 8 Submit Documentation Feedback Copyright © 2014, Texas Instruments Incorporated Product Folder Links: LP8555 |
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