MP3001

1x, 1.5x, 2x Auto-Adjust Charge Pump

White LED Backlight and Flashlight Driver

MP3001 Rev. 0.91

www.MonolithicPower.com

1

9/21/2007

MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited.

© 2007 MPS. All Rights Reserved.

The Future of Analog IC Technology

DESCRIPTION

The MP3001 is a dual function WLED driver

intended for camera phone applications. It can

drive up to 4 backlight WLEDs at up to 30mA

each and a flash WLED at up to 250mA.

Backlight brightness can be adjusted with a

5-bit register plus one bit for precise low

brightness control.

The

MP3001

employs

a

super

efficient

inductorless charge pump with 1x, 1.5x and 2x

automatic mode control to achieve high

efficiency power conversions.

serial data link provides a simple and fast

interface used to enable, disable and set

current levels for each LED. In addition,

soft-start limits the inrush current during startup

and mode switching.

Each output is current limited, providing

controlled brightness and short circuit protection.

Thermal shutdown protection guards against

excessive loads and shorts.

The tiny 3mm x 3mm QFN 16-pin package and

small external capacitors deliver the most

compact white LED solution available.

FEATURES

• Simultaneous Support of Backlight and

Flash LEDs up to 370mA

• Three Independent Controls on WLED

Currents

Backlight: up to 4 WLEDs at 30mA Each

Flashlight: up to 250mA Total

Preview: up to 120mA Total

Simple, Low Overhead Solution

Fast Data Transfer Rate

• Good Current Matching at Low LED Current Level

• Thermal Shutdown Protection

• Under-Voltage Protection

• Available in a 3mm x 3mm 16-Pin QFN Package

• Low EMI Noise

APPLICATIONS

• Cellular Phones

• PDA Phones

• PDAs

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

Monolithic Power Systems, Inc.

“MPC” is a Trademark of Monolithic Power Systems, Inc.

TYPICAL APPLICATION

MP3001

FLED

LED0

LED1

LED2

LED3

CP

12

16

15

14

13

1

VIN

C1A

C1B

C2A

C2B

DATA

ISET1

ISET2

ISET3

VSS

7

4

3

6

2

8

11

10

9

5

BATT

SINGLE PIN SERIAL PORT

250mA Total

Flash/Preview

FL

D1

D2

D3

D4

120mA Total Backlight

COMMON ANODE

CONFIGURATION

CONNECT EXPOSED PAD TO PIN5

100

90

80

70

60

50

40

30

20

2.5

3.0

3.5

4.0

4.5

BATTERY VOLTAGE (V)

Efficiency vs

Battery Voltage

I_LED=30mA

I_LED=20mA

I_LED=10mA