CAT4004VP2-GT3 ON Semiconductor

CAT4004 4-Channel Constant Current LED Driver with EZDim Description The CAT4004 provides four matched low dropout current sources to drive LEDs. An external resistor on RSET sets the current in the LED CAT4004 Table 1. ABSOLUTE MAXIMUM RATINGS Parameter Rating Unit VIN, LEDx, RSET 6 V EN/DIM Voltage V + 0.7 V IN Storage Temperature Range 65 to +160 C Junction Temperature Range 40 to +150 C Lead Temperature 300 C Stresses exceeding Maximum Ratings may damage the device. Maximum Ratings are stress ratings only. Functional operation above the Recommended Operating Conditions is not implied. Extended exposure to stresses above the Recommended Operating Conditions may affect device reliability. Table 2. RECOMMENDED OPERATING CONDITIONS Parameter Rating Unit V 2.4 to 5.5 V IN Ambient Temperature Range 40 to +85 C I per LED pin 0 to 40 mA LED NOTE: Typical application circuit with external components is shown on page 1. Table 3. ELECTRICAL OPERATING CHARACTERISTICS (over recommended operating conditions unless specified otherwise) V = 4.0 V, EN = High, T = 25C IN AMB Symbol Name Conditions Min Typ Max Units I Quiescent Current No load, RSET = Float 0.6 mA Q No load, RSET = 4.8 k 1.0 I Shutdown Current V = 0 V 1 A QSHDN EN I LED Current Accuracy 1 mA I 40 mA 1 % LED ACC LED I LED Channel Matching 5 1 +5 % I I LED DEV LED LEDAVG I LED V Dropout Voltage I = 30 mA 130 mV DOUT LED EN/DIM Pin R Internal pulldown resistor 100 k EN/DIM V Logic High Level 1.3 V HI V Logic Low Level 0.4 V LO T Thermal Shutdown 150 C SD T Thermal Hysteresis 20 C HYS V Undervoltage lockout (UVLO) threshold 1.8 V UVLO