EV7718A_S0_R0 JW7718A_S0_R0 Rev.0.1 JoulWatt ® Proprietary InformationPatent Protected. 1 Unauthorized Photocopy and Duplication Prohibited. FEATURES Supports DCM, Quasi-Resonant, CrCM and CCM operation Support the Flyback topology Supports High-side and Low-side Rectification Output voltage directly supply VCC Low quiescent current Under-voltage protection Fast driver capability for CCM operation SOP-8 package APPLICATIONS Flyback Converter DESCRIPTION JW ® 7718A is a synchronous rectifier, used for the secondary side rectification of Flyback. By drivingan internal MOSFET, JW7718A is able to significantly improve the efficiency comparing with the conventional Diode rectifier. When JW7718A senses V DS of internalMOSFETless than -300mV, it turns on the internal MOSFET. Once the V SW is greater than -10mV, JW7718A turns off the internal MOSFET. JW7718A supports multiple operation modes, such as DCM, CrCM, CCM and Quasi-Resonant. By implementing the Joulwattproprietary technology, JW7718A is able to handle CCM operation. JW7718A is available in SOP-8 package. EVALUATION BOARD 40V SR
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EV7718A_S0_R0 Parameters Subject to ChangeParameters Subject to ChangeParameters Subject to ChangeParameters Subject to Change Without NoticeWithout NoticeWithout NoticeWithout Notice
Unauthorized Photocopy and Duplication Prohibited.
IMPORTANT NOTICE
� Joulwatt Technology Inc. reserves the right to make modifications, enhancements, improvements,
corrections or other changes without further notice to this document and any product described herein. � Any unauthorized redistribution or copy of this document for any purpose is strictly forbidden.
� Joulwatt Technology Inc. does not warrant or accept any liability whatsoever in respect of any products