MP3356 – HIGH VOLTAGE PHOTO FLASH CHARGER AND IGBT DRIVER FOR DSC

MP3356 Rev. 0.91

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4

1/29/2010

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PIN FUNCTIONS

Pin #

Name

Description

1

IGBTIN

Logic Input Pin for IGBT Drive.

2

IGBTOUT

Output Drive for IGBT Gate. Connect this pin to the gate of the IGBT.

3

SW

Switch Pin. This is the drain of the internal power switch.

4

PG

Open-Drain Power-Ready Output.

reached.

5

FB

Feedback Pin. Its trip voltage is 300V

6

EN

Charge Enable Pin. A low to high transition on this pin puts the part into power delivery

mode. Once the target voltage is reached, the part will stop charging the output. Toggle

this pin will start charging again. Bring this pin low will terminate the power delivery and

put the part in shutdown.

7

PGND

Power Ground

8

AGND

Analog ground. Tie it directly to local ground plane.

9,10

VIN

Input Supply Pin. Connect it to system supply voltage. Bypass VIN to AGND with a

0.1uF or greater ceramic capacitor.