MP1527DR MPS [Monolithic Power Systems], MP1527DR Datasheet

MP1527DR

Manufacturer Part Number

MP1527DR

Description

1.3MHz Low Power LED Torch/Flash Driver

Manufacturer

MPS [Monolithic Power Systems]

Datasheet

1.MP1527DR.pdf (5 pages)

Available stocks

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Part Number

Manufacturer

Quantity

Price

Company:

Bonase Electronics (HK) Co., Limited

Part Number:

MP1527DR-LF-Z

Manufacturer:

MPS

Quantity:

251

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The Future of Analog IC Technology

DESCRIPTION

The

designed to drive a single Lumileds LED with

low,

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.

ELECTRICAL SPECIFICATIONS

EV1527DR-02A EVALUATION BOARD

EV1527DR-02A Rev. 1.0

9/21/2005

Parameter

Supply Voltage

LED Current (Torch)

LED Current (Flash)

EV1527DR-02A

Board Number

EV1527DR-02A

forward

(L x W x H) 2.0” x 2.2” x 0.5”

(5.0cm x 5.6cm x 1.0cm)

voltage

Symbol

MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited.

OUT1

OUT2

evaluation

for

MPS IC Number

MP1527DR

Camera

3.0 – 4.2

Value

150

750

board

www.MonolithicPower.com

Units

Flash

FEATURES

•

APPLICATIONS

•

“MPS” and “The Future of Analog IC Technology” are Registered

Trademarks of Monolithic Power Systems, Inc.

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

Load Transient

= 3.6V (1 LED)

EV1527DR-02A

LED Torch/Flash Driver

1.3MHz Low Power

EVALUATION BOARD

EV1527DR-02A_WF01

2V/div

5V/div

FLASH

OUT

Related parts for MP1527DR

MP1527DR Summary of contents

Page 1

... OUT1 LED Current (Flash) I OUT2 EV1527DR-02A EVALUATION BOARD ( 2.0” x 2.2” x 0.5” (5.0cm x 5.6cm x 1.0cm) Board Number MPS IC Number EV1527DR-02A MP1527DR EV1527DR-02A Rev. 1.0 9/21/2005 MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited. FEATURES board is • 4.2V Input Voltage Range • ...

Page 2

EVALUATION BOARD SCHEMATIC 47nF 10nF EN GND VIN EV1527DR-02A BILL OF MATERIALS Qty Ref Value Description 1 C1 0.1µF Ceramic Capacitor, 16V, X7R 1 C2 47nF Ceramic Capacitor, 25V, X7R 1 C3 10nF Ceramic Capacitor, 50V, X7R ...

Page 3

... MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited. EV1527DR-02A - 1.3MHZ LOW POWER LED TORCH/FLASH DRIVER (continued) www.MonolithicPower.com © 2005 MPS. All Rights Reserved. EVALUATION BOARD Manufacturer Package Part Number Zetex Inc.: SOT23-6 ZXMN2A03E6TA Panasonic: 0603 ERJ-3GEYJ104V Yageo: 0805 9C08052A8R06FGHFT Panasonic: 1210 ERJ-14YJ2R0U Panasonic: 0603 ERJ-3GEYJ221V MPS: QFN16 MP1527DR 3 ...

Page 4

PRINTED CIRCUIT BOARD LAYOUT Figure 1—Top Silk Layer EV1527DR-02A Rev. 1.0 9/21/2005 MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited. EV1527DR-02A - 1.3MHZ LOW POWER LED TORCH/FLASH DRIVER Figure 3—Bottom Layer www.MonolithicPower.com © 2005 MPS. All Rights Reserved. EVALUATION BOARD ...

Page 5

QUICK START GUIDE 1. Connect a Lumileds DS25 to LED terminals on the EV1527DR-02A board. 2. Preset the power supply 4.2V. 3. Turn the power supply off. 4. Connect the power supply terminals to: a. Positive (+): ...

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