Product Summary

The CAT3643HV2-T2 is a high efficiency Quad-Mode fractional charge pump that can drive up to three LEDs programmable by a one wire digital interface. The CAT3643HV2-T2 is available in the 16-pad TQFN or 12-pad TDFN 3 mm x 3 mm package with a max height of 0.8mm. The applications of the CAT3643HV2-T2 are LCD Display Backlight, Cellular Phones, Digital Still Cameras, Handheld Devices.

Parametrics

CAT3643HV2-T2 absolute maximum ratings: (1)VIN, LEDx, C1±, C2±, EN/DIM, RSET voltage: 6 V; (2)VOUT voltage: 7 V; (3)Storage Temperature Range: -65 to +160℃; (4)Junction Temperature Range: -40 to +150℃.

Features

CAT3643HV2-T2 features: (1)High Efficiency 1.33x Charge Pump; (2)Quad-mode Charge Pump: 1x, 1.33x, 1.5x, 2x; (3)Drives up to 3 LEDs at 32 mA Each; (4)1?wire EZDim LED Current Programming; (5)Power Efficiency up to 92%; (6)Low Noise Input Ripple in All Modes; (7)“Zero” Current Shutdown Mode; (8)Soft Start and Current Limiting; (9)Short Circuit Protection; (10)Thermal Shutdown Protection; (11)12-pad TDFN and 16-pad TQFN Packages; (12)These Devices are Pb-Free, Halogen Free/BFR Free and are RoHS Compliant.

Diagrams

CAT3643HV2-T2 circuit diagram

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