ZXGD3104N8 SYNCHRONOUS MOSFET CONTROLLER IN SO8 Description Features The ZXGD3104 is intended to drive MOSFETs configured as ideal 5-25V V Range CC diode replacements. The device is comprised of a differential amplifier Operating up to 250kHz detector stage and high current driver. The detector monitors the Suitable for Discontinuous Conduction Mode (DCM), Critical reverse voltage of the MOSFET, such that if the body diode Conduction Mode (CrCM), and Continuous Conduction Mode conduction occurs, a positive voltage is applied to the MOSFETs Gate (CCM) Operation Pin. Turn-Off Propagation Delay 15ns and Turn-Off Time 20ns Proportional Gate Drive Control Once the positive voltage is applied to the Gate, the MOSFET Detector Threshold Voltage -10mV switches on. The detectors output voltage is then proportional to the Standby Current 5mA MOSFET Drain-Source voltage, and this is applied to the Gate via the Totally Lead-Free & Fully RoHS Compliant (Notes 1 & 2) driver. This action provides a rapid MOSFET turn-off at zero Drain Halogen and Antimony Free. Green Device (Note 3) current. Qualified to AEC-Q101 Standards for High Reliability Mechanical Data Applications Flyback Converters in: Case: SO-8 90W Laptop Adaptors 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) Typical Configuration SO-8 DNC DRAIN BIAS REF GATEL GND GATEH V CC Top View Pin-Out Ordering Information (Note 4) Product Marking Reel Size (inches) Tape Width (mm) Quantity per Reel ZXGD3104N8TC ZXGD3104 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 ZXGD3104N8 Functional Block Diagram Pin Number Name Description and Function Do Not Connect 1 DNC Leave pin floating. Reference 2 REF This pin is connected to VCC via resistor, RREF. Select RREF to source 2.16mA into this pin. Refer to Table 1 in Application Information section. 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 V CC 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 This pin is connected to V via resistor, R . Select R to Source 3mA into this pin. Refer to Table 1 in 7 BIAS CC BIAS BIAS Application Information section. Drain Connection 8 DRAIN This pin connects directly to the synchronous MOSFET Drain terminal. 2 of 13 November 2015 ZXGD3104N8 Diodes Incorporated www.diodes.com Document Number DS35546 Rev. 2 - 2