SP6003A Datasheet | SYNC POWER

DESCRIPTION The fundamental of SP6003A synchronous rectifier (SR) driver IC is based on our U.S. patented methods that utilize the principle of “prediction” logic circuit. The IC deliberates previous cycle timing to control the SR in present cycle by “predictive” algorithm that makes adjustments to the turn-off time, in order to achieve maximum efficiency and avoid cross-conduction at the same time. It also maintains the MOSFET’s body diode conduction at minimum level. The SP6003A is capable to adapt in almost all existing flyback converters with few adjustments considered necessary. APPLICATIONS - Servers & workstations - Storage area network power supplies - Telemunication converters - Embedded systems - Industrial & mercial systems using high current processors FEATURES - Offers efficiency improvement over Schottky Diode (depends on drive configuration of the SR). PIN CONFIGURATION (SOP-8) - Drives all logic level Power MOSFET. - Prediction gate timing control. - Minimum MOSFET body diode conduction. - Operating frequency up to 650 KHz. - Synchronize to transformer secondary voltage PART MARKING waveform. 2020/06/23 Ver.6 Page 1 Synchronous Rectifier Driver TYPICAL APPLCATION CIRCUIT PIN DESCRIPTION Pin Symbol Description Timing Discontinuous current filter timing adjustment resistor connection. Pred Capacitor to store previous cycle timing for Catch MOSFET Rapid-Adj Capacitor connection to adjust fast pulse width reduction response. Cramp Ramp capacitor adjustment to extend MOSFET’s gate timing. GND Ground connection. MOSG-C Catch MOSFET gate drive. Vdd DC supply...