MP3304C中文资料2.5V-6Vin, 20V OVP, 1.3A Boost WLED Driver数据手册MPS规格书

描述 Description

The MP3304 is a monolithic step-up converter
designed for driving arrays of WLEDs from 5V
input or a single cell Lithium Ion battery. The
MP3304 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 MP3304 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 MP3304 is turned off if an over-voltage
condition is present due to an open circuit
condition. MP3304 also includes under-voltage
lockout, current limiting and thermal overload
protection preventing damage in the event of an
output overload.
The MP3304 is available in small 8-pin QFN
2x3mm package.

特性 Features

●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
●Open Load Shutdown
●Low 200mV Feedback Voltage
●UVLO, Thermal Shutdown
●Internal 1.3A Current Limit
●Available in 2x3mm QFN8 Package