Diodes ZXGD3101N8 User Manual download pdf

ZXGD3101N8

Document Number DS31945 Rev. 1 - 2

1 of 14

www.diodes.com

June 2010

ZXGD3101N8

Product Line o

Diodes Incorporated

SYNCHRONOUS RECTIFIER CONTROLLER

Description

The ZXGD3101 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 allowing reverse current flow. The detectors’ output

voltage is then proportional to the MOSFET Drain-Source reverse

voltage drop and this is applied to the Gate via the driver. This action

provides a rapid turn off as current decays.

Application

• Flyback Converters in:

• Adaptors

• LCD Monitors

• Server PSU’s

• Set Top Boxes

• LLC Converter in:

• High Power Adaptors

• LCD TV

• Street Lighting

Refer to documents: AN54, AN69, DN90, DN91 and DN94 available

from the website

Features

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

• Suitable for Discontinuous Mode (DCM), Critical

Conduction Mode (CrCM) and Continuous Mode (CCM)

operation

• Compliant with Energy Star V2.0 and European Code of

Conduct V3

• Halogen Free part

• 5-15V Vcc range

Mechanical Data

• Case: SO-8

• Marking Information: See Page 13

Ordering Information

Product Status Package Marking Reel size (inches) Tape width (mm) Quantity per reel

ZXGD3101N8TC Active SO-8 ZXGD3101 13 12 2500

1 2 3 4 5 6 ... 13 14

Summary of Contents

Page 1 - © Diodes Incorporated

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Page 2

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Page 3 - Electrical Characteristics @T

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Page 4

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Page 5 - Conduction

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Page 6

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Page 7 - Typical Characteristics

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Page 8

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Page 9 - Transfer Characteristic

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Page 10

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Page 11

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Page 12 - ZXGD3101N8

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Page 13 - Detail ‘A’

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Page 14

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