onsemi CAT3643HV2-GT2

Lead Free RoHS Compliant DUAL SERIAL IC LED Driver -40C~85C TA 1MHz~1.3MHz 5.5V 32mA

Multi-Step Switched Capacitor (Charge Pump) 32mA 3 7V DFN SMD mount，glue mount 3mm*3mm*730μm

CAT3643HV2-GT2, LED DISPLAY DRIVER 3-SEGMENTS, 2.5 - 5.5 V, 12-PIN TDFN

LED DRVR 3Segment 3.3V/5V 12-Pin TDFN T/R

LED Driver 3 Segment 12-Pin TDFN EP T/R

IC LED DVR 3CH QUAD MODE 12WFDFN

IC LED DRV RGLT MULT-STEP 12TDFN

IC LED DRIVER RGLTR DIM 12TDFN

The CAT3643 is a high efficiency Quad-Mode fractional charge pump that can drive up to three LEDs programmable by a one wire digital interface. The inclusion of a 1.33x fractional charge pump mode increases device efficiency by up to 10% over traditional 1.5x charge pumps with no added external capacitors. Low noise input ripple is achieved by operating at a constant switching frequency which allows the use of small external ceramic capacitors. The multi-fractional charge pump supports a wide range of input voltages from 2.4V to 5.5V. The EN/DIM logic input functions as a chip enable and a digital dimming interface for current setting of all LEDs. Six different current ratios are available via the interface. The device is available in the 16-pad TQFN or 12-pad TDFN 3mm x 3mm package with a max height of 0.8mm. ON Semiconductors Quad-Mode 1.33x charge pump switching architecture is patented.