 |
|
| If you can't view the Datasheet, Please click here to try to view without PDF Reader . |
|
|
|
| If you can't view the Datasheet, Please click here to try to view without PDF Reader . |
|
|
| Datasheet File OCR Text: |
| EV1527DR-02A 1.3MHz Low Power LED Torch/Flash Driver The Future of Analog IC Technology EVALUATION BOARD DESCRIPTION The EV1527DR-02A evaluation board is designed to drive a single Lumileds LED with low, forward voltage for Camera Flash applications. The board is set up to obtain 150mA torch current and 750mA flash current with an input voltage range of 3.0V to 4.2V. The torch and flash currents can be adjusted by resistors R2 and R3 on the Evaluation Board. The MP1527 switches at 1.3MHz and allows the use of tiny, low cost capacitors and small inductors. External compensation and soft-start result in small inrush current and extend the battery life. The MP1527 operates from an input voltage as low as 2.6V. FEATURES * * * * * * * * * * * 3V to 4.2V Input Voltage Range Tiny Capacitors and Inductors Due to 1.3MHz Fixed Switching Frequency Output LED Currents: 150mA at Torch Mode, 750mA at Flash Mode Surface-Mount Components Fully Assembled and Tested Camera Phone Flash Handheld Computers and PDAs Digital Still and Video Cameras External Modems Small LCD Displays White LED Drivers APPLICATIONS ELECTRICAL SPECIFICATIONS Parameter Supply Voltage LED Current (Torch) LED Current (Flash) Symbol VIN IOUT1 IOUT2 Value 3.0 - 4.2 150 750 Units V mA mA "MPS" and "The Future of Analog IC Technology" are Registered Trademarks of Monolithic Power Systems, Inc. EV1527DR-02A EVALUATION BOARD Load Transient VIN = 3.6V (1 LED) VFLASH 2V/div 0 VOUT 5V/div (L x W x H) 2.0" x 2.2" x 0.5" (5.0cm x 5.6cm x 1.0cm) Board Number EV1527DR-02A MPS IC Number MP1527DR 0 EV1527DR-02A_WF01 EV1527DR-02A Rev. 1.0 9/21/2005 www.MonolithicPower.com MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited. (c) 2005 MPS. All Rights Reserved. 1 EV1527DR-02A - 1.3MHZ LOW POWER LED TORCH/FLASH DRIVER EVALUATION BOARD EVALUATION BOARD SCHEMATIC VIN Q2 U1 Q1 FB COMP NC SS FAULT SGND PGND PGND LED1 D1 1N5819HW-7 1A, 40V D2 NS* MP1527 BP EN SW SW NC IN FLASH C2 47nF C3 10nF SGND NC EN GND VIN C6 NS EV1527_S01 * Note: Cut trace to install D2. EV1527DR-02A BILL OF MATERIALS Qty 1 1 1 1 1 1 1 1 1 1 Ref C1 C2 C3 C4 C5 C6 D1 D2 L1 LED1 Value 0.1F 47nF 10nF 4.7F 10F Description Ceramic Capacitor, 16V, X7R Ceramic Capacitor, 25V, X7R Ceramic Capacitor, 50V, X7R Ceramic Capacitor, 10V, X5R Ceramic Capacitor, 10V, X7R Not Stuffed Schottky Diode, 1A, 40V Not Stuffed 3.0H Inductor, 2.4A Not Stuffed S Sumida: CDRH5D28-3R0NC SOD123 Diodes Inc.: 1N5819HW-7 Package 0603 0603 0603 1210 1210 Manufacturer Part Number AVX: 0603YC104KAT AVX: 06033C473KAT AVX: 06035C103KAT AVX: 1210YD475KAT2W AVX: 1210YD106KAT2W EV1527DR-02A Rev. 1.0 9/21/2005 www.MonolithicPower.com MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited. (c) 2005 MPS. All Rights Reserved. 2 EV1527DR-02A - 1.3MHZ LOW POWER LED TORCH/FLASH DRIVER EVALUATION BOARD EV1527DR-02A BILL OF MATERIALS (continued) Qty 2 3 1 1 1 1 Ref Q1, Q2 R1, R5, R6 R2 R3 R4 U1 Value Description N-Channel MOSFET, 4.5A, 20V 100k Resistor, 5% 8.06 Resistor, 1% 2.0 220 Resistor, 5% Resistor, 5% Step-Up Converter Package SOT23-6 0603 0805 1210 0603 QFN16 Manufacturer Part Number Zetex Inc.: ZXMN2A03E6TA Panasonic: ERJ-3GEYJ104V Yageo: 9C08052A8R06FGHFT Panasonic: ERJ-14YJ2R0U Panasonic: ERJ-3GEYJ221V MPS: MP1527DR EV1527DR-02A Rev. 1.0 9/21/2005 www.MonolithicPower.com MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited. (c) 2005 MPS. All Rights Reserved. 3 EV1527DR-02A - 1.3MHZ LOW POWER LED TORCH/FLASH DRIVER EVALUATION BOARD PRINTED CIRCUIT BOARD LAYOUT Figure 1--Top Silk Layer Figure 2--Top Layer Figure 3--Bottom Layer EV1527DR-02A Rev. 1.0 9/21/2005 www.MonolithicPower.com MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited. (c) 2005 MPS. All Rights Reserved. 4 EV1527DR-02A - 1.3MHZ LOW POWER LED TORCH/FLASH DRIVER EVALUATION BOARD QUICK START GUIDE 1. Connect a Lumileds DS25 to LED terminals on the EV1527DR-02A board. 2. Preset the power supply to 3V - 4.2V. 3. Turn the power supply off. 4. Connect the power supply terminals to: a. Positive (+): VIN b. Negative (-): GND 5. Connect EN to VIN. 6. Turn on the power supply after making said connections. 7. The MP1527 is enabled on the demo board once VIN is applied. 8. Drive FLASH of Q1 with a pulsed signal (3V or above for High, 0V for Low) to switch between two (2) LED currents. 9. IOUT1 is set to 150mA on the board. 10. IOUT2 is set to 750mA on the 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. EV1527DR-02A Rev. 1.0 9/21/2005 www.MonolithicPower.com MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited. (c) 2005 MPS. All Rights Reserved. 5 |
Price & Availability of EV1527DR-02A
 |
|
|
|
|
All Rights Reserved © IC-ON-LINE 2003 - 2022 |
| [Add Bookmark] [Contact Us] [Link exchange] [Privacy policy] |
|
Mirror Sites : [www.datasheet.hk]
[www.maxim4u.com] [www.ic-on-line.cn]
[www.ic-on-line.com] [www.ic-on-line.net]
[www.alldatasheet.com.cn]
[www.gdcy.com]
[www.gdcy.net] |