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Preliminary
RP2404
4 Channels Pulse Dimming Current Source for WLED Driver
General Description
Features
The RP2404 low-dropout bias supply for white LEDs is a high-performance alternative to the simple ballast resistors used in conventional white LED designs. The RP2404 uses an internal resistor to set the bias current for 4LEDs, which are matched to 2%. The RP2404's advantages over ballast resistors include much lower bias variation with supply voltage variation, significantly lower dropout voltage , and
2% in some applictions, significantly improved efficiency.
Low 50mV Dropout at 20mA 16 Steps Pulse Dimming 2% LED Current Matching 2.7V to 4.5V Supply Voltage Range Thermal Shutdown Protection
RP2404 is available in WQFN 3X3-16L package.
RP2404 Datasheet
