CAT3647 3-Channel Ultra High Efficiency LED Driver with 32 Dimming Levels Description CAT3647 1 F 1 F C1+ C1 C2+ C2 V V IN OUT VIN VOUT C C IN 2.4 V OUT to CAT3647 5.5 V 1 F 1 F 1Wire EN/DIM EZDim LED1 Programming LED2 20 mA RSET LED3 3.74 k GND Figure 1. Typical Application Circuit Table 1. ABSOLUTE MAXIMUM RATINGS Parameter Rating Unit VIN, LEDx, C1, C2, EN/DIM, RSET voltage 6 V VOUT voltage 7 V Storage Temperature Range 65 to +160 C Junction Temperature Range 40 to +150 C Stresses exceeding those listed in the Maximum Ratings table may damage the device. If any of these limits are exceeded, device functionality should not be assumed, damage may occur and reliability may be affected. Table 2. RECOMMENDED OPERATING CONDITIONS Parameter Rating Unit VIN 2.5 to 5.5 V Ambient Temperature Range 40 to +85 C I per LED pin up to 30 mA LED LED Forward Voltage Range 1.3 to 4.3 V Functional operation above the stresses listed in the Recommended Operating Ranges is not implied. Extended exposure to stresses beyond the Recommended Operating Ranges limits may affect device reliability. NOTE: Typical application circuit with external components is shown above.