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PDF EV1529DR-00A Data sheet ( Hoja de datos )
| Número de pieza | EV1529DR-00A | |
| Descripción | Fixed Frequency Step-Up Converter LCD Backlight Plus Flash Evaluation Board | |
| Fabricantes | MPS | |
| Logotipo |  |
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TM
EV1529DR-00A
Fixed Frequency Step-Up Converter
LCD Backlight Plus Flash Evaluation Board
The Future of Analog IC Technology TM
GENERAL DESCRIPTION
The EV1529DR-00A evaluation board is
designed to drive 2 strings of up to 4 backlight
LEDs to 30mA and a 4-LED flash string to
150mA from a single Lithium-Ion battery. The
board is set up to obtain 20mA backlight
current, 40mA preview current and 100mA flash
current. All the LED currents can be adjusted by
resistors RS1, RS2, and RS3 on the evaluation
board.
The MP1529 switches at 1.2MHz and allows
the use of tiny, low cost capacitors and small
inductors. High frequency PWM dimming is
made possible through EN1. The MP1529
includes built-in open-LED over-voltage
protection, cycle-by-cycle current limit, over-
temperature shutdown, input under-voltage
control and integrated soft-start.
ELECTRICAL SPECIFICATIONS
Parameter
Supply Voltage
LED Current (Backlight)
LED Current (Preview)
LED Current (Flash)
Symbol
VIN
ILED_BL
ILED_PV
ILED_FL
Value
2.7-4.2
20
40
100
Units
V
mA
mA
mA
FEATURES
• High Efficiency
• 2.7V to 4.2V Input Voltage Range
• Tiny Capacitors and Inductors Due to
1.2MHz Fixed Frequency Operation
• LCD Backlight to 30mA, Flash to 150mA
• Independent Backlight, Preview and Flash
Current Adjustment
• High Frequency PWM Dimming
• Surface-Mount Components
• Fully Assembled and Tested
APPLICATIONS
• PDAs
• Cellular Phones
• Digital Still Cameras
• Digital Video Cameras
“MPS” and “The Future of Analog IC Technology” are Trademarks of Monolithic
Power Systems, Inc.
EV1529DR-00A EVALUATION BOARD
(L x W x H) 2.2” x 1.8” x 0.4”
(5.5cm x 4.8cm x 1.0cm)
Board Number
EV1529DR-00A
MPS IC Number
MP1529DR
EV1529DR-00A Rev. 1.0
11/2/2005
www.MonolithicPower.com
MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited.
© 2005 MPS. All Rights Reserved.
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| Páginas | Total 4 Páginas | |
| PDF Descargar | [ Datasheet EV1529DR-00A.PDF ] | |
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