ZXGD3103N8TC Diodes Incorporated

ZXGD3103N8 SYNCHRONOUS MOSFET CONTROLLER Description Features 5 to15V V Range CC The ZXGD3103 is intended to drive MOSFETS configured as ideal Operation Up to 250kHz diode replacements. The device is comprised of a differential amplifier 180V Drain Voltage Rating detector stage and high current driver. The detector monitors the Proportional Gate Drive to Minimize Body Diode Conduction reverse voltage of the MOSFET such that if body diode conduction Turn-off Propagation Delay 15ns and Turn-off Time 20ns occurs a positive voltage is applied to the MOSFETs Gate pin. Detector Threshold Voltage ~10mV Standby Current 5mA Once the positive voltage is applied to the Gate the MOSFET Suitable for Discontinuous Mode (DCM), Critical Conduction switches on allowing reverse current flow. The detectors output Mode (CrCM) and Continuous Mode (CCM) Operation voltage is then proportional to the MOSFET Drain-Source reverse Totally Lead-Free & Fully RoHS Compliant (Notes 1 & 2) voltage drop and this is applied to the Gate via the driver. This action Halogen and Antimony Free. Green Device (Note 3) provides a rapid turn off as current decays. Mechanical Data Applications Case: SO-8 Flyback Converters in: Case material: Molded Plastic. Green Molding Compound Low Voltage AC/DC Adaptors UL Flammability Rating 94V-0 LED TV, Monitors, Set Top Boxes Moisture Sensitivity: Level 1 per J-STD-020 Terminals: Finish - Matte Tin Plated Leads, Solderable per Resonant Converters in: MIL-STD-202, Method 208 Higher Power PSU - Telecoms and Server PSU Weight: 0.074 grams (Approximate) Computing Power Supplies ATX and Server PSU Street Lighting - Typical configuration SO-8 Pin Name Pin Function DNC DRAIN Transformer GND Ground BIAS REF V Power Supply CC R GATEL Gate Turn off R BIAS REF GATEL GND GATEH Gate Turn on BIAS Bias connection REF BIAS Vcc GATEH V CC DRAIN Drain Sense ZXGD DRAIN 3103 REF Reference C1 DNC Do not connect GATEL GATEH GND Top View Top View Pin-Out Synchronous Rectifier MOSFET Ordering Information (Note 4) Product Marking Reel Size (inches) Tape Width (mm) Quantity per Reel ZXGD3103N8TC ZXGD3103 13 12 2,500 Notes: 1. No purposely added lead. Fully EU Directive 2002/95/EC (RoHS) & 2011/65/EU (RoHS 2) compliant. 2. See ZXGD3103N8 Functional Block Diagram Vcc Gate drive amplitude + control Differential amplifier - + Turn-on/off DRAIN GATEH High volt control Driver - comparator GATEL Threshold voltage control REF BIAS GND Pin Functions Pin Number Pin Name Pin Function and Description Do not connect 1 DNC Leave pin floating Reference 2 REF This pin is connected to V via resistor, R CC REF Gate turn off 3 GATEL This pin sinks current, I , from the synchronous MOSFET Gate SINK Gate turn on 4 GATEH This pin sources current, I , to the synchronous MOSFET Gate SOURCE Power Supply 5 Vcc This is the supply pin. It is recommended to decouple this point to ground closely with a ceramic capacitor. Ground 6 GND This is the Ground reference point. Connect to the synchronous MOSFET Source terminal. Bias 7 BIAS This pin is connected to V via resistor R CC BIAS Drain Connection 8 DRAIN Connect this pin to the synchronous MOSFET drain terminal. 2 of 12 ZXGD3103N8 June 2016 Diodes Incorporated www.diodes.com Document number: DS32255 Rev. 3 - 2