ZXGD3104N8

1 of 13

www.diodes.com

November 2011

© Diodes Incorporated

A Product Line of

Diodes Incorporated

ZXGD3104N8

SYNCHRONOUS MOSFET CONTROLLER IN SO8

Description

The ZXGD3104 is intended to drive MOSFETS configured as ideal

diode replacements. The device is comprised of a differential amplifier

detector stage and high current driver. The detector monitors the

reverse voltage of the MOSFET such that if body diode conduction

occurs a positive voltage is applied to the MOSFET’s Gate pin.

Once the positive voltage is applied to the Gate the MOSFET switches

on. The detectors’ output voltage is then proportional to the MOSFET

Drain-Source voltage and this is applied to the Gate via the driver.

This action provides a rapid MOSFET turn off at zero Drain current.

Applications

•

Flyback Converters in:

o

≥90W Laptop Adaptors

Features

•

5-25V Vcc range

•

Operating up to 250kHz

•

Suitable for Discontinuous Mode (DCM), Critical Conduction

Mode (CrCM) and Continuous Mode (CCM) operation

•

Turn-off propagation delay 15ns and turn-off time 20ns.

•

Proportional Gate Drive

•

Detector threshold voltage -10mV

•

Standby current 5mA

•

“Lead-Free”, RoHS Compliant (Note 1)

•

Halogen and Antimony free. “Green” Device (Note 2)

•

Qualified to AEC-Q101 Standards for High Reliability

Mechanical Data

•

Case: SO-8

•

Case material: Molded Plastic. “Green” Molding Compound.

•

UL Flammability Rating 94V-0

•

Moisture Sensitivity: Level 1 per J-STD-020

•

Terminals: Matte Tin Finish

•

Solderable per MIL-STD-202, Method 208

•

Weight: 0.074 grams (approximate)

Product

Marking

Reel size (inches)

Tape width (mm)

Quantity per reel

ZXGD3104N8TC

ZXGD3104

13

12

2,500

Notes:

1. No purposefully added lead

2. Diodes Inc’s “Green” Policy can be found on our website at http://www.diodes.com

3. For packaging details, go to our website at http://www.diodes.com

Marking Information

ZXGD

= Product Type Marking Code, Line 1

3104

= Product Type Marking Code, Line 2

YY

= Year (ex: 11 = 2011)

WW

= Week (01 - 53)

ZXGD

3104

YY WW

Top View

Pin-Out

DRAIN

DNC

REF

GATEL

GATEH

BIAS

GND

SO-8

Typical Configuration