SC4911 Datasheet - Semtech Corporation

SC4911 Bias/Primary Side PWM Controller

The SC4911 is a highly integrated bias/primary side PWM controller designed for off-line or isolated dc-dc converters in telecommunication and data communication applications. The high degree of integration minimizes the amount of discrete parts needed and leads to substantial cost and space saving .

SC4911 Features

* Programmable switching frequency up to 500kHz Line UVLO Protection Undervoltage Lockout Low startup current (45µA) Cycle by cycle current limit 8 pin MSOP. Available in Lead-free, fully WEEE and RoHS compliant Applications Telecom isolated converters Offline isolated power suppl

SC4911_SemtechCorporation.pdf