AN-1632 LP5521TM Evaluation Kit (Rev. E)
The Texas Instruments LP5521TMEV evaluation module helps designers evaluate the operation and
performance of LP5521 integrated circuit (IC). The LP5521TMEV uses a high-efficiency charge pump,
three independent LED channels, and program memory for creating variety of lighting sequences. More
information about the LP5521 capabilities can be found in the device datasheet (SNVS441).
The EVM contains power supply connection for the VDD voltage. Test points are provided for key signals.
The on-board microcontroller can be used to control the digital input signals of the LP5521 and to control
the device with I2C interface. A graphical user interface (GUI) is provided for fast and easy evaluation of
If an external power supply is used, VDD voltage must be within 2.7 V to 5.5 V. This voltage range is within
the absolute maximum input range of the LP5521. Users are cautioned to evaluate their specific operating
conditions and choose components with the appropriate voltage ratings before designing this support
circuitry into a final product.