DPA425

DPA422-426 DPA-Switch Family Highly Integrated DC-DC Converter ICs for Power over Ethernet & Telecom Applications Product Highlights Highly Integrated Solution Eliminates up to 50 external components–saves space, cost Integrates 220 V high frequency MOSFET, PWM control Lower cost plastic DIP surface mount (G package) and through-hole (P package) options for designs ≤35 W Thermally efficient TO-263-7C (R package) option for high power applications Superior Performance and Flexibility Eliminates all external current sensing circuitry Built-in auto-restart for output overload/open loop protection Pin selectable 300/400 kHz fixed frequency Wide input (line) voltage range: 16-75 VDC Externally programmable current limit Source connected tab reduces EMI Line undervoltage (UV) detection: meets ETSI standards Line overvoltage (OV) shutdown protection UV/OV limits gate drive voltage for synchronous rectification Fully integrated soft-start for minimum stress/overshoot Supports forward or flyback topology Cycle skipping: regulation to zero load without pre-load Hysteretic thermal shutdown for automatic fault recovery RoHS compliant P and G package options EcoSmart™– Energy Efficient Extremely low consumption at no-load Cycle skipping at light load for high standby efficiency Applications PoE applications, VoIP phones, WLAN, security cameras Telco central office equipment: xDSL, ISDN, PABX Distributed power architectures (24 V/48 V bus...