MP1567: Buck Boost Lumileds White Driver EV0059 evaluation board
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EV0059
MP1567: Buck Boost Lumileds White Driver
EV0059 evaluation board designed drive Lumileds White LEDs using MPS' MP1567 step down converter. EV0059 circuit positive negative voltage converter with positive input voltage range 2.6V generated output voltage -18V with respect ground. MP1567 peak, synchronous step down converter utilizing constant frequency, current mode switching topology. MP1567 internal 180m 220m MOSFETs soft start operation. MP1567 switches high frequency (800KHz) reducing size external components. includes under voltage lockout over-temperature protection available tiny MSOP packages. Input Supply Voltage Enable Voltage
EVALUATION BOARD
Absolute Maximum Ratings
6.5V -0.3V
Recommended Operating Conditions
Input Supply Voltage Output Voltage VOUT 2.6V -18V
Lumileds Emitter Features
Highest Flux world lumens Very long operating life to100k hours) Superior protection More Energy Efficient than Incandescent most Halogen lamps Available White, Green, Blue, Royal Blue, Cyan, Red, Red-Orange, Amber
Ordering Information
Board Number
EV0059 Luxeon Emitter
MP1567 Features
Peak Current Limit Internal 180m 220m Power Switches efficiency Zero Current Shutdown Mode Under Voltage Lockout Protection Soft Start Operation Thermal Shutdown Internal Current Limit (Source Sink)
Part Number
MP1567DK DS25
Figure EV0059 Evaluation Board
Applications
Handheld Computers, PDAs Cell phones, Digital Video Cameras Small Display
Actual Size: 2.5"X
EV0059 1.2_09/03/03
Monolithic Power Systems, Inc.
EV0059
MP1567: Buck Boost Lumileds White Driver
Figure EV0059 Schematic
EVALUATION BOARD
Stuff
EV0059 1.2_09/03/03
Monolithic Power Systems, Inc.
EV0059
MP1567: Buck Boost Lumileds White Driver
Table EV0059 Bill Materials
Component LED1 Part Number MP1567DK Emitter 4.7nF Stuff 10nF 10µF, 200K Stuff 6.2µH Vendor Monolithic Power Systems Lumileds None Sumida Package MSOP10 DS25 0805 0805 0805 1210 0805 0805 0805 1810
EVALUATION BOARD
CDRH5D18-6R2NC Total
Optional POT1 100K SW_DPDT_B
Board Operation
Attach input voltage 2.6V input ground pins respectively. Turn position enable board. Turn position disable board. Turn POT1 clockwise increase brightness counterclockwise decrease brightness. Jumper replaced with resistor measure current.
EV0059 1.2_09/03/03
Monolithic Power Systems, Inc.
EV0059
MP1567: Buck Boost Lumileds White Driver
Figure EV0059 Silk Layer
EVALUATION BOARD
Figure EV0059 Layer
Figure EV0059 Bottom Silk Layer
Figure EV0059 Bottom Silk Layer
NOTICE: believes information this document accurate reliable. However, subject change without notice. Please contact factory current specifications. responsibility assumed application, infringement patent other rights third parties.
EV0059 09/03/03 2003 MPS, Inc. Monolithic Power Systems, Inc. University Ave, Building Gatos, 95032 Tel: 408-395-2802 Fax: 408-395-2812 Web: www.monolithicpower.com
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