CAT3637AEVB ON Semiconductor

CAT3637 6-Channel Programmable High Efficiency LED Driver Description The CAT3637 is a high efficiency fractional charge pump that can drive up to six LEDs programmable by a 1wire digital interface. The CAT3637 1 F 1 F V C1 C1+ C2 C2+ IN V OUT VIN VOUT 2.5 V C IN to C OUT 5.5 V LED1 1 F CAT3637 LED2 1 F LED3 LED4 1Wire EN/SET LED5 Programming LED6 GND Figure 1. Typical Application Circuit Table 1. ABSOLUTE MAXIMUM RATINGS Parameter Rating Unit VIN, LEDx, C1, C2 voltage 6 V VOUT Voltage 7 V EN/SET Voltage VIN + 0.7 V V Storage Temperature Range 65 to +160 C Junction Temperature Range (Note 2) 40 to +150 C Lead Temperature 300 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 Range Unit VIN 2.5 to 5.5 V Ambient Temperature Range (Note 2) 40 to +85 C I per LED pin 0 to 30 mA LED Total Output Current 0 to 180 mA 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. 2. Package thermal resistance is below 50C/W when mounted on FR4 board.