XRP6840 Datasheet, PDF (9/17 Pages) Exar Corporation – 4.3A Supercapacitor Flash LED Driver with I2C

XRP6840
4.3A Supercapacitor Flash LED Driver with I²C
Fig. 17: LED Current Settling Time: 200mA to 0mA.
CH1=SDA, CH2=SCL, CH4=I_LED=0.1A/div
Fig. 18: LED Current Settling Time 200mA to Shutdown.
CH1=RESET_N, CH2=LEDx, CH4=I_LED=0.2A/div
Fig. 19: LED Current Settling Time From Shutdown to
200mA. CH1=RESET_N, CH2=LEDx, CH4=I_LED=0.2A/div
Fig. 20: Flash Mode Shutdown. CH1=RESET_N,
CH2=RDY, CH3=V_OUT
Fig. 21: Figure 21: Flash Mode Enable From Shutdown
CH1=RESET_N, CH2=RDY, CH3=V_OUT
© 2009 Exar Corporation
9/17
Rev. 1.0.0