ZXGD3104N8_15 Datasheet, PDF (1/13 Pages) Diodes Incorporated – 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
Typical Configuration
A Product Line of
Diodes Incorporated
ZXGD3104N8
SYNCHRONOUS MOSFET CONTROLLER IN SO8
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)
DNC
REF
GATEL
GATEH
SO-8
DRAIN
BIAS
GND
VCC
Top View
Pin-Out
Ordering Information (Note 3)
Product
ZXGD3104N8TC
Marking
ZXGD3104
Reel size (inches)
13
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
Tape width (mm)
12
Quantity per reel
2,500
ZXGD
3104
YY WW
ZXGD
3104
YY
WW
= Product Type Marking Code, Line 1
= Product Type Marking Code, Line 2
= Year (ex: 11 = 2011)
= Week (01 - 53)
ZXGD3104N8
Document Number DS35546 Rev. 1 – 2
1 of 13
www.diodes.com
November 2011
© Diodes Incorporated