CAT3649AGEVB:  High Efficiency Quad-Mode Fractional Charge Pump Evaluation Board

The CAT3649 is a high efficiency Quad-Mode fractional charge pump that can drive up to six LEDs. The inclusion of a 1.33x fractional charge pump mode increases the 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 2.4 V to 5.5 V.
The LED current can be adjusted in different ways. The full-scale LED current is set to 25 mA once the device is enabled. Analog dimming in 32 linear steps is achieved via a 1-wire pulse-dimming input (ADIM). Further adjustment of the LED current can be done by applying a pulse width modulation (PWM) signal on the PWM input. The PWM dimming control is compatible with content adaptive brightness control (CABC) for a wide range of PWM signal frequency up to 200 kHz.
Evaluation/Development Tool Information
Product Status Compliance Short Description Parts Used Action
CAT3649AGEVB Active
High Efficiency Quad-Mode Fractional Charge Pump Evaluation Board CAT3649HV3-GT2
Technical Documents
Type Document Title Document ID/Size Rev
Eval Board: BOM CAT3649AGEVB Bill of Materials ROHS Compliant CAT3649AGEVB_BOM_ROHS.PDF - 150.0 KB  0 
Eval Board: Gerber CAT3649AGEVB Gerber Layout Files (Zip Format) CAT3649AGEVB_GERBER.ZIP - 79.0 KB  2 
Eval Board: Schematic CAT3649AGEVB Schematic CAT3649AGEVB_SCHEMATIC.PDF - 251.0 KB  0 
Eval Board: Test Procedure CAT3649AGEVB Test Procedure CAT3649AGEVB_TEST_PROCEDURE.PDF - 116.0 KB  0 
Software CAT3649AGEVB Software CAT3649AGEVB_SOFTWARE.ZIP - 2888.0 KB  0 
Eval Board: Manual CAT3649AGEVB Manual EVBUM2164/D - 521.0 KB  1 
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