MP3331-2A SYNCHRONOUS BOOST FLASH LED DRIVER WITH I

MP3331 Rev. 1.02

www.MonolithicPower.com

10

5/3/2016

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PIN FUNCTIONS

Pin #

Name

Description

A1

OUT

Boost converter output.

A2

SW

Boost converter switching node.

A3

GND

Ground.

B1

LED

Current source for LED.

Connect the anode of LED to LED.

B2

STR

Strobe signal input

STR synchronizes the flash pulse to the image capture. If STR is

floated, internally pull STR to low weakly.

B3

IN

Input supply.

IN provides the power for the internal power and logic circuit. IN must be

bypassed locally.

C1

TOR/TX

Torch signal input or synchronization input signal for RF transmission signal.

If

TOR/TX is floated, internally pull TOR/TX to low weakly.

C2

SDA

I

C3

SCL

I