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EV1541DJ-TFT-00A Datasheet(PDF) 5 Page - Monolithic Power Systems |
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EV1541DJ-TFT-00A Datasheet(HTML) 5 Page - Monolithic Power Systems |
5 / 5 page EV1541DJ-TFT-00A – MP1541 TFT APPLICATIONS EVALUATION BOARD EVALUATION BOARD 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. EV1541DJ-TFT-00A Rev. 1.0 www.MonolithicPower.com 5 6/8/2005 MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited. © 2005 MPS. All Rights Reserved. TM QUICK START GUIDE The output voltage of this board is set to 5V, –10V and 15V on VOUT, VN and VP, respectively. The board layout accommodates most commonly used inductors and output capacitors. 1. Preset the power supply to 3V ≤ VIN ≤ 3.6V. 2. Turn off the power supply. 3. Connect the power supply terminals to: a. Positive (+): VIN, EN b. Negative (–): GND 4. Connect the load to: a. Positive (+): VOUT, VP, GND (for the negative output) b. Negative (–): GND, VN (for the negative output) 5. Turn on the power supply after making the connections. 6. The MP1541 is disabled on the evaluation board if only VIN is applied. To enable the MP1541, EN needs to be pulled HIGH. 7. The output voltage VOUT can be changed by varying R1. Calculate the new value using the formula: 2 R 1 V V 1 R FB OUT ⎟⎟ ⎠ ⎞ ⎜⎜ ⎝ ⎛ − = Where VFB = 1.25V and R2 = 10kΩ For example, for VOUT = 7.5V Ω = Ω × ⎟ ⎠ ⎞ ⎜ ⎝ ⎛ − = k 50 k 10 1 V 25 . 1 V 5 . 7 1 R Therefore use a 49.9kΩ standard 1% value resistor. |
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