CAT4104

700 mA Quad Channel Constant Current LED Driver CAT4104 Description The CAT4104 provides four matched low dropout current sinks to drive high−brightness LED strings up to 175 mA per channel. The LED channel current is set by an external resistor connected to the RSET pin. The LED pins are compatible with high voltage up to 25 V supporting applications with long strings of LEDs. The EN/PWM logic input supports the device enable and high frequency external Pulse Width Modulation (PWM) dimming control. Thermal shutdown protection is incorporated in the device to disable the LED outputs whenever the die temperature exceeds 150°C. The device is available in the 8−pad TDFN 2 mm x 3 mm package and the SOIC 8−Lead 150 mil wide package. Features 4 Matched LED Current Sinks up to 175 mA Up to 25 V Operation on LED Pins Low Dropout Current Source (0.4 V at 175 mA) LED Current Set by External Resistor High Frequency PWM Dimming via EN/PWM “Zero” Current Shutdown Mode Thermal Shutdown Protection TDFN 8−pad 2 x 3 mm and SOIC 8−lead Packages These Devices are Pb−Free, Halogen Free/BFR Free and are RoHS Compliant Applications Automotive Lighting General and Architectural Lighting LCD Backlight VCC 3 V to 25 V LEDs VIN 5V OFF ON R1 768 W CAT4104 VIN LED1 LED2 EN/PWM LED3 RSET LED4 GND 175 mA DATA SHEET www.onsemi.com SOIC−8 V SUFFIX CASE 751BD TDFN−8 VP SUFFIX CASE 511AK PIN CONNECTIONS 1 LED1 RSET LED2 VIN LED3 EN/PWM LED4 GND SOIC 8−lead (To...