CAT3648HV3-GT2 ON Semiconductor

CAT3648 4-Channel Ultra High Efficiency LED Driver with 32 Dimming Levels Description The CAT3648 is a high efficiency fractional charge pump that can CAT3648 1 F 1 F C1+ C1 C2+ C2 V IN V OUT VIN VOUT C OUT CIN 2.4 V to CAT3648 1 F 1 F 5.5 V LED1 1Wire EN/DIM EZDim LED2 20 mA Programming LED3 RSET LED4 3.74 k GND Figure 1. Typical Application Circuit Table 1. ABSOLUTE MAXIMUM RATINGS Parameter Rating Unit VIN, LEDx, C1, C2, EN/DIM 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.