EV3332-C-00A

Dual channel, 1.5A/Ch Flash LED Driver

With I

Evaluation Board

EV3332-C-00A Rev.1.0

www.MonolithicPower.com

1

8/14/2015

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© 2015 MPS. All Rights Reserved.

The Future of Analog IC Technology

DESCRIPTION

The MP3332 is a dual-channels flash LED driver

with very compact package, high efficiency for

high-resolution camera phones to improve image

and video quality in low light environment. The

synchronous

boost

converter

operates

in

1/2/3/4MHz to provide an optimized solution for

smaller PCB space and higher efficiency.

The MP3332 features standard I

dual LED channels, rich protection modes and

high power density and performances. The

MP3332

supports

flash/assist

light/torch/indicator/5V DC modes.

The cathodes of the dual flash LED are

referenced to GND for better layout to improve

thermal performance. It is available in WLCSP16-

1.65X1.65mm package.

ELECTRICAL SPECIFICATIONS

Parameter

Symbol

Value

Units

Input Voltage

2.7-5.5

V

Output Voltage

Vout

<5.5

V

LED channel

2

LED Current/Ch

1500

mA

FEATURES

• 2.7V~5.5V input voltage

• Dual-channels, 1.5A/ch flash current with

+/-7% accuracy

• 1/2/3/4MHz selectable switching frequency

and switching frequency fold-back function

• Standby/Flash/Assist/Torch/Indicator/5V DC

modes

Flash Mode:

Up to 1.5A programmable current with +/-

7% accuracy for each LED

Assist/Torch Mode:

Up to 500mA/ch programmable current with

+/-7% accuracy

Indicator Mode:

Work in 31.5kHz PWM operation with 2/16,

3/16, 4/16, 5/16 duty cycle

128ms/256ms/512ms

selectable

blinking

time

5V DC Mode:

Constant 5V DC Output

• External Torch/Strobe Pin

• LED forward voltage balance to improve

efficiency

• 1A to 4.2A programmable input DC current

limit protection

• Low battery voltage protection

• LED short/open protection

• Over voltage protection

• Over temperature protection

• Input under voltage lockout protection

• Available in WLCSP16-1.65X1.65mm

APPLICATIONS

•

LED Flash Application For Smart Phone

• Camera For Tablets

• Digital Still Camera

All MPS parts are lead-free, halogen free, and adhere to the RoHS directive. For

MPS green status, please visit MPS website under Quality Assurance. “MPS”

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

Monolithic Power Systems, Inc.