EV0062 (MP1541) 1.3MHz LOW POWER TORCH/FLASH LED DRIVER
EVALUATION BOARD - INITIAL RELEASE
QUICK START GUIDE
1. Connect LEDs to LED1 – LED4 terminals.
2. Preset Power Supply to 2.5V – 6V.
3. Turn Off Power Supply.
4. Connect Power Supply terminals to:
a. Positive (+): VIN
b. Negative (–): GND
5. Turn Power Supply On after making connections.
6. The MP1541 is automatically enabled on the demo board once V
IN
is applied.
7. Drive FLASH of Q1 with a pulsed signal (3V or above for High, 0V for Low) to switch between
two (2) LED currents.
8. I
OUT
1 is set to 20mA on the board.
9. I
OUT
2 is set to 100mA on the board.
NOTICE:
MPS believes the information in this document to be accurate and reliable. However, it is subject to change without
notice. Contact MPS for current specifications. MPS encourages users of its products to ensure that third party Intellectual
Property rights are not infringed upon when integrating MPS products into any application. MPS cannot assume any legal
responsibility for any said applications.
EV0062 (MP1541) Rev. 1.0
6/10/04
© 2004 MPS, Inc.
Monolithic Power Systems, Inc.
983 University Avenue, Building A, Los Gatos, CA 95032 USA
Tel: 408-357-6600
♦
Fax: 408-357-6601
♦
www.MonolithicPower.com
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MPS [ MONOLITHIC POWER SYSTEMS ]
