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ADP1655ACBZ-R7 Datasheet(PDF) 9 Page - Analog Devices |
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ADP1655ACBZ-R7 Datasheet(HTML) 9 Page - Analog Devices |
9 / 24 page ADP1655 Rev. 0 | Page 9 of 24 CHANNEL 1 (IL) 0.2A/DIV CHANNEL 2 (IHPLED) 0.1A/DIV CHANNEL 3 (LED_OUT) 5V/DIV CHANNEL 4 (SW) 5V/DIV L = FDSE0312-2R2M COUT =10µF 500ns/DIV 4 2 3 1 Figu .6 V re 11. Inductor Current, Two LEDs Flash Mode, ILED = 400 mA, VIN = 3 CHANNEL 1 (IL) 0.2A/DIV CHANNEL 2 (IHPLED) 0.02A/DIV CHANNEL 3 (LED_OUT) 5V/DIV CHANNEL 4 (SW) 5V/DIV L = FDSE0312-2R2M COUT =10µF 500ns/DIV 4 3 2 1 Figure 12. Inductor Current, Two LEDs Torch Mode, ILED = 40 mA, VIN = 3.6 V –10 –8 –6 –4 –2 0 2 4 6 8 10 OUTPUT CURRENT (mA) 04 300 200 100 500 00 VIN = 3.2V VIN = 3.6V VIN = 4.2V Figure 13. LED Current Accuracy vs. Output Current OUTPUT CURRENT (A) 0 10 20 30 40 50 60 70 80 90 100 10 100 1000 VIN = 3.2V VIN = 3.6V VIN = 4.2V Figure Series 14. Efficiency PLED/PIN, Two High Power White LEDs in 0 10 20 30 40 50 60 70 80 90 100 10 100 1k OUTPUT CURRENT (A) VIN = 3.2V VIN = 3.6V VIN = 4.2V Figure 15. Efficiency PLED/PIN, One High Power White LED CHANNEL 1 (IBAT) 1A/DIV CHANNEL 2 (IHPLED) 0.2A/DIV CHANNEL 3 (VOUT) 5V/DIV CHANNEL 4 (TX_MASK) 5V/DIV L = FDSE0312-2R2M COUT =10µF Δ:4µs 20µs/DIV 4 3 2 1 Figure 16. Tx Masking Response, TX_MASK = 0 V to 1.8 V, ILED = 40 mA to 400 mA, VIN = 3.2 V |
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