© 2013 Solid State Optronics • San José, CA

MD203 /TR

Rev 2.00 (11/12/2013)

001701

Page 1 of 7

MD203

Optically Coupled

MOSFET Driver

w/Discharge Circuit

Description

The MD203 consists of an input drive LED optically

coupled to a photodiode array output designed to drive

highly capacitive loads, including the gate of a power

MOSFET. The active discharge circuit of the PDA assures

quick discharge of MOSFETs, providing fast turn-off times.

This device can be used in a wide variety of applications for

which high levels of input are required for a MOSFET

output.

The MD203 comes standard in a miniature 4 pin SOP

package.

Schematic Diagram

Agency Approvals

UL / C-UL:

File # E201932

VDE:

File # 40035191 (EN 60747-5-2)

Applications



Isolated means to drive discrete power MOSFETs



Lighting Controls



Process Control Modules



Solid State Relays



Solenoid Controls

Absolute Maximum Ratings

The values indicated are absolute stress ratings. Functional

operation of the device is not implied at these or any

conditions in excess of those defined in electrical

characteristics section of this document. Exposure to

absolute Maximum Ratings may cause permanent damage

to the device and may adversely affect reliability.

Storage Temperature …………………………..-55 to +125°C

Operating Temperature …….…..……...………-40 to +85°C

Continuous Input Current………………………………..50mA

Transient Input Current ………………….……………..500mA

Reverse Input Control Voltage …………..…………………5V

Input Power Dissipation…………………………………70mW

Total Power Dissipation ……………………………..170mW

Solder Temperature – Wave (10sec)……………….….260°C

Solder Temperature – IR Reflow (10sec)….…………..260°C

Ordering Information

Part Number

Description

MD203

4 pin SOP, (100/Tube)

MD203-TR

4 pin SOP, Tape and Reel (2000/Reel)

Features



Miniature 4 pin SOP package



Built in active discharge circuit for fast turn-off



Fast Turn-On



6V Gate Drive Voltage





Long Life / High Reliability



RoHS / Pb-Free / REACH Compliant

NOTES: Suffixes listed above are not included in marking on

device for part number identification

1

2

3

4

(+) Input

(-) Input

(-) DC Output

(+) DC Output

IC

MD203