MP3332

Dual-Channel Flash LED Driver,

MP3332 Rev. 1.0

www.MonolithicPower.com

1

5/1/2018

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© 2018 MPS. All Rights Reserved.

DESCRIPTION

The MP3332 is a dual-channel, flash LED driver

for high-resolution camera phones. It comes in a

very compact package and is highly efficient at

improving image and video quality in low-light

environments. The synchronous boost converter

operates

at

1/2/3/4MHz

to

provide

higher

efficiency and an optimized solution for smaller

PCB spaces.

dual LED channels, high-power density, and

multiple

protection

features.

The

MP3332

supports flash, assist, torch, indicator, and 5V

DC modes.

To improve thermal performance, the cathodes of

the dual flash LED are referenced to GND for a

better layout. It is available in a WLCSP-16

(1.7mmx1.7mm) package.

FEATURES

 2.7V~5.5V Input Voltage

 Dual-Channel, 1.5A/Ch Flash Current with

+/-7% Accuracy

 1/2/3/4MHz Selectable Switching Frequency

and Switching Frequency Foldback

Function

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

Modes

Flash Mode:

 Up to 1.5A/Ch Programmable Current with

+/-7% Accuracy for Each LED

Assist/Torch Mode:

 Up to 500mA/Ch Programmable Current

with +/-7% Accuracy for Each LED

Indicator Mode:

 Works 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

 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

 VOUT-GND Short Protection

 Over-Voltage Protection (OVP)

 Over-Temperature Protection (OTP)

 NTC Detection and Protection

 Input Under-Voltage Lockout (UVLO)

Protection

 Available in a WLCSP-16 (1.7mmx1.7mm)

Package

APPLICATIONS

 LED Flash for Smart Phones

 Cameras for Tablet

 Digital Still Camera

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

directive. For MPS green status, please visit the MPS website under

Quality Assurance.

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

registered trademarks of Monolithic Power Systems, Inc.