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- Internal Power MOSFET
- Drives up to 10 Series White LEDs
- Up to 88% Efficiency
- PWM Dimming Frequency from 250Hz to 50kHz
- 2.2MHz Fixed Switching Frequency
- Programmable Open Load Shutdown Threshold (OVP)
- Low 200mV Feedback Voltage
- UVLO, Thermal Shutdown
- Internal 1.3A Current Limit
- Available in 2mm x 3mm QFN8 Package
- Isw Limit (A)1.33
- Ishutdown (µA)1
- Vin (min) (V)2.5
- Vin (max) (V)6
- fsw (min) (kHz)2200
- fsw (max) (kHz)2200
- Vout (max) (V)36
- Vfb (V)0.2
- Rds(on) (mΩ)400
- PackageQFN-8 (2x3)
- Power MOSFETIntegrated
- Dimming (Output)P-Dim
- Iq (mA)0.69
- Typical LCD Screen SizesSmall (<10")
Evaluation KitGET THIS KIT
The EV3305DD-00A is an evaluation board for the MP3305DD, a monolithic step-up converter designed for driving arrays of WLEDs from 5V input or a single cell Lithium Ion battery. The EV board is optimized for the load of 3 white LEDs in series, 10 strings panel.
The MP3305 uses current mode, fixed frequency architecture to regulate the LED current, which is measured through an external current sense resistor. Its low 200mV feedback voltage reduces power loss and improves efficiency.
The MP3305 features up to 50kHz true PWM dimming, which allows the flexible control of the backlighting luminance under wide range of the ambient brightness, and also avoids the possibility of PWM dimming audible noise.
The MP3305 is turned off if an over-voltage condition is present due to an open circuit condition. Use one external resistor voltage divider to program OVP threshold. MP3305 also includes under-voltage lockout, current limiting and thermal overload protection preventing damage in the event of an output overload.
The MP3305 is available in small 8-pin QFN (2mm x 3mm) package.
$50.00 + tax