ZXGD3103N8 Datasheet, PDF (1/12 Pages) Diodes Incorporated – SYNCHRONOUS MOSFET CONTROLLER

A Product Line of
Diodes Incorporated
ZXGD3103N8
SYNCHRONOUS MOSFET CONTROLLER
Description
The ZXGD3103 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.
Features
Applications
• Proportional Gate Drive
• Flyback Converters in:
• Turn-off propagation delay 15ns and turn-off
• Adaptors
time 20ns.
• LCD Monitors
• Detector threshold voltage ~10mV
• Server PSU’s
• Standby current 5mA
• Set Top Boxes
• Suitable for Discontinuous Mode (DCM),
Critical Conduction Mode (CrCM) and
• LCD TV
Continuous Mode (CCM) operation
• Resonant Converters
• 5-15V V_CC range
• LED TV
• High power Adaptors
• Street Lighting
• ATX psu
Pin out details
Typical Configuration
N/C 1
REF 2
GATEL 3
GATEH 4
SO-8
8 DRAIN
7 BIAS
6 GND
5 V_CC
Ordering information
Device
Status
Package
Part Mark
Reel size
(inches)
ZXGD3103N8TC Production SO8 ZXGD3103 13
Tape width
(mm)
12
Quantity per reel
2500
ZXGD3103N8
Document number: DS32255 Rev. 2 - 2
1 of 12
www.diodes.com
July 2010
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