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MSP430 interface to TPS60250 via I?C master software

Posted: 09 Jul 2008 ?? ?Print Version ?Bookmark and Share

Keywords:TI application note? I2C interface? MSP430 interface to TPS60250?

The TPS60250 is a high-efficiency, constant-frequency charge pump DC/DC converter that can drive up to five white LEDs for a main display and up to two white LEDs for a subdisplay with regulated constant current for uniform intensity.

An MCU can be used to control the currents for white LEDs via the TPS60250 charge pump through a standard I?C interface, with the MCU acting as the I?C master. This application report written by Randy Wu describes a simple hardware and software platform to demonstrate a Texas Instruments MSP430 MCU implementing an I?C master interface using two general-purpose I/O pins via I?C software emulation. The MSP430 is an ultralow power MCU that is ideal for controlling white LEDs in applications such as PDA, PMP, GPS and cellphone screens, said Texas Instruments.

View the PDF document for more information.

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Related Datasheets
Part Number Description Category
? TPS60250 High Efficiency Charge Pump for 7 WLEDs with I2C Interface (Rev. B) ICs, Interface



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