DC1055A

DC1055A demonstration circuit is a 250mA universal nine channel LED driver with two RGB displays and three white LEDs featuring the LTC3219. The LTC3219 is a low-noise charge pump designed to drive nine universal LED current sources. The LTC3219 requires only five small ceramic capacitors to form a complete LED power supply and current controller. The maximum display currents are set with an internal precision current reference. On/Off blinking, gradation, and intensity are achieved via an I2C serial interface. Demonstration circuit 1055 is easy to set up to evaluate the performance of the LTC3219.

附註

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