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| Preliminary NJU6061 Full Color LED Controller Driver with PWM Control ! GENERAL DESCRIPTION The NJU6061 is an RGB LED driver with PWM control. It contains PWM (pulse width modulation) controller, LED drivers, 8-bit serial interface, etc. Each of the R (red), G (green) and B (blue) outputs produces 128 levels individually so that the RGB LED emits full color. It features a programmable sweep function, which can changes LED color smoothly reducing CPU load. It requires only four external components such as three resistors for LED current adjustment and the one for oscillation, which enables the NJU6061 to save PCB space. The NJU6061 is suited for a large number of applications such as cellular phones, car stereo sets, household appliances, illumination equipment, etc. ! PACKAGE OUTLINE NJU6061P ! FEATURES # # # # # # # # Controls the 3-color LED Separately (ILED=30mA x 3 outputs) Built-in PWM Luminance Control (128 steps x 3) Built-in 8bit serial Interface Circuit Sweep Programming Function Built-in Oscillation Circuit Operating Voltage for Step-up Circuits : 2.4V to 5.5V Package : FFP12(2.0*2.0*0.850.15mm) CMOS Technology Ver.2004-03-09 -1- NJU6061 ! BLOCK DIAGRAM VDD OSC OSC Preliminary EN VLED LED1 Program Register 128 step PWM Driver 30mA VDD Program Register 128 step PWM Driver 30mA LED2 C P U CS CLK DATA VSS I/F Instruction Decoder Program Register 128 step PWM Driver 30mA LED3 ! PIN DESCRIPTIONS No. PIN NAME VDD RSTb CSb CLK DATA OSC VSS EN LED1 LED2 LED3 TYPE Power Input Input Input Input Input Power Input Output Output Output DESCRIPTIONS VDD Power Supply terminal Reset terminal - Active "L". Chip Select terminal The serial data is fixed on the rising edge of CSb clock. Shift Clock terminal Serial Data terminal Oscillating terminal External resistor connecting Ground terminal Output Enable terminal LED Connect terminals (Open drain output) Output level are 32 steps PWM by instruction control. Connecting cathode of LED. [CAUTION] The specifications on this databook are only given for information , without any guarantee as regards either mistakes or omissions. The application circuits in this databook are described only to show representative usages of the product and not intended for the guarantee or permission of any right including the industrial rights. -2- Ver.2004-03-09 |
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