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SC605MLTRT Datasheet(PDF) 3 Page - Semtech Corporation |
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SC605MLTRT Datasheet(HTML) 3 Page - Semtech Corporation |
3 / 12 page 3 2005 Semtech Corp. www.semtech.com POWER MANAGEMENT SC605 Electrical Characteristics (Cont.) Parameter Symbol Conditions Min Typ Max Units Flash Mode - ISET Reference Voltage V ISET FLASH high, R ISET = 0.5W, 3.3V < V IN < 4.2V, 2.8V < VOUT < 4.25V 230 250 270 mV Spotlight Mode - ISET Reference Voltage V ISET FLASH low, CTRL0 high, CTRL1 high 3.0V < V IN < 4.5V, 2.8V < VOUT < 4.5V 85 100 115 FLASH low, CTRL0 low, CTRL1 high 3.0V < V IN < 4.5V, 2.8V < VOUT < 4.5V 60 75 90(3) FLASH low, CTRL0 high, CTRL1 low 3.0V < V IN < 4.5V, 2.8V < VOUT < 4.5V 35 50 65(3) Quiescent Current I Q FLASH High 3.4 5 mA FLASH low, CTRL0 and/or CTRL1 High 2.0 4.5 mA FLASH low, CTRL0 low, CTRL1 Low 0.1 2 µA Flash Mode Pulse Duration (4) t FLASH 3.3V < V IN < 4.2V I OUT = 500mA 500 ms Flash Mode Start-Up Time (4) t F-ST from t = 0 when FLASH goes high to I OUT = 90% of final value 1 ms Spotlight Mode Start-Up Time (4) t S-ST from t = 0 when CTRL0 and/or CTRL1 transi- tion high to I OUT = 90% of final value 1 ms Oscillator Frequency f OSC Device Enabled 250 kHz Oscillator Frequency Accuracy D f OSC -15 15 % Short-Circuit Ouput Current Limit I SC V OUT = 0V 465 mA Input Current Limit I LIMIT 3.3V < V IN < 4.2V 1.0 2.1 A V IN = 3.7V, VOUT = 3.7V, TA = 25°C 1.38 1.53 Over-Temperature Protection (4) T OT 150 °C Hysteresis 10 °C Logic Input High Threshold V IH FLASH, CTRL0, CTRL1 1.5 V Logic Input Low Threshold V IL FLASH, CTRL0, CTRL1 0.4 V Logic Input High Current I IH FLASH, CTRL0, CTRL1 1 20 35 µA Logic Input Low Current I IL FLASH, CTRL0, CTRL1 0.1 2 µA ISET Ripple Voltage(4) V PP Spotlight Mode, I OUT = 200mA 25 mV Flash Mode, I OUT = 500mA 100 Notes: (1) V OUT required by the typical LED at this current. (2) Values do not overlap with the next higher spotlight mode for any single device. Expect Spotlight Modes to be separated by about 50mA. (3) Values do not overlap with the next higher spotlight mode for any single device. Expect Spotlight Modes to be separated by about 25mV. (4) Guaranteed by design - not tested in production. |
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