EV1528DQ-00A Datasheet, PDF (3/3 Pages) Monolithic Power Systems – 9 Lamp, 20mA Preciscion WLED Driver Evaluation Board

TM
EV1528DQ-00A – 9 LAMP, 20MA PRECISION WLED DRIVER EV BOARD
PRINTED CIRCUIT BOARD LAYOUT
Figure 1—Top Silk Layer
Figure 2—Top Layer
Figure 3—Bottom Layer
QUICK START GUIDE
1. Solder LED1 - LED9 to the board.
2. Attach the positive and negative terminals of the power supply (2.7V - 5.5V) to the VIN and
GND pins, respectively.
3. Drive EN high to enable the MP1528.
4. Apply a DC voltage of 0.3V to 1.2V on BRT for analog dimming. Maximum brightness (20mA
typical) occurs with 1.2V applied. For PWM dimming mode, apply a PWM rectangular wave with
a minimum voltage less than 0.18V and a maximum greater than 1.2V. When a voltage less
than 0.18V is applied to this pin, the output switch is turned off. The frequency of the PWM
signal must be between 100Hz to 400Hz.
NOTICE: The information in this document is subject to change without notice. Please contact MPS for current specifications.
Users should warrant and guarantee that third party Intellectual Property rights are not infringed upon when integrating MPS
products into any application. MPS will not assume any legal responsibility for any said applications.
EV1528DQ-00A Rev. 1.0
www.MonolithicPower.com
3
10/11/2005
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