onsemi CAT4106HV4-GT2

CAT4106 Series 175 mA 5.5 V 1.3 MHz SMT 4-Channel DC-DC LED Driver - TQFN-16

CAT4106HV4-GT2, LED DISPLAY DRIVER 4-SEGMENTS, 3 - 5.5 V, 16-PIN TQFN

Tape & Reel (TR) CAT4106 Step-Up (Boost) PWM led driver 4.1mm 175mA 5.5V 1MHz

LED DRIVER, BOOST, 1MHZ, TQFN-16; Device Topology: Boost (Step Up); Input Voltage Min: 3V; Input Voltage Max: 5.5V; Output Voltage Max: 40V; Output Current Max: 175mA; Switching Frequency: 1MHz; No. of Outputs: 4Outputs; IC Mou

The CAT4106 is an integrated multi-channel LED driver and high power dc-dc converter suitable for powering backlighting applications up to a total of 6 watts. Up to four matched LED strings can be accurately programmed with uniform drive current set by a single external resistor. Each output channel is suitable for LED string voltages of up to 36 V. The driver automatically adjusts the output voltage to drive the highest forward voltage string with the minimum headroom voltage maximizing the efficiency. High resolution dimming control is achieved by the EN/PWM logic pin which supports multiple frequencies. This ensures precise PWM dimming control while the device remains fully biased. In addition when held at logic low the device to enter a full shutdown zero current mode. External programming resistors set the minimum and maximum voltage limits for the acceptable window of operation for LED strings. Any channel which fails to regulate within the window (Open or Short LED) is detected and flagged on the FAULT logic output (active low open-drain). The device is available in a 16-lead TQFN 4 mm x 4 mm and TSSOP with exposed pad packages.