DAK-21A Power Integrations

Innovation in power conversion C4 1000 pF R7 1500 V 10 k L1 PoE Interface 10 MH 1 A 1 9,10 Product Selector Guide R5 2 6,7 R31 649 k7 VR31 R36 DC-DC Products R4 24.9 k7 1% 11 V 51 k7 1 M7 VR3 1% 4 1% SMAJ R32 150A 3 100 k7 5 Q32 C1 C2 September 2008 1.5 FM 1.5 FM 100 V 100 V 1 DPA-Switch U1 VR32 R33 DPA423G 27 V D L Q31 M 2 k7 CONTROL 1% C R37 220 k7 S X F Q33 R R35 51 100 k7 C5 U31 0.1 MF 1% Q34 R34 R6 C VR33 69.8 7 8.66 k7 22 15 V 1% 1% 10 Q35 100 V 0.250 m7 LMV431A1M MMBTAO6L MMBTAO6L MMBTAO6L MMST3904Features & Bene ts The DPA-Switch Family combines a 220 V power MOSFET with a controller that provides current monitoring, undervoltage and over temperature protection, soft start and other control functions in a single device, saving up to 30 external components in the power supply design. Combining the key switching elements into a single package reduces design complexity and ensures rapid, low-risk development of highly cost-effective power supplies. Superior Performance and Flexibility. The DPA-Switch family supports a range of power requirements in either forward or yback topologies and offers a variety of package options to maximize design exibility. A DIP-8 package is available for low-cost designs, and a thermally ef cient TO-263-7C R package (2 C/Watt) is available for higher power applications. Product Highlights Supports yback and forward topology Programmable internal current sense eliminates external sense components Built-in auto-restart for output overload/open loop protection Line undervoltage (UV) detection: meets ETSI standards Line overvoltage (OV) shutdown protection Fully integrated soft-start for minimum stress/overshoot Hysteretic thermal shutdown for over temperature protection and automatic recovery Source connected tab for low EMI EcoSmart Energy Ef ciency Extremely low consumption at no-load (10 mA typ.) and in remote off (2 mA max.) Cycle skipping at light load for high standby ef ciency Package Information P and G packages have Pb-free nish (100% matte tin), are RoHS compliant and meet requirements of JEDEC standard J-STD-020C table 4.2. The R package is not available in Pb-free nish. G-Package P-Package C C S 1 8 S 1 8 L L 2 2 7 S 7 S X X 3 D 3 6 D 6 F F 4 5 4 5 S S R-Package 12 3 4 5 7 CL X S F D Typical Applications PoE applications: VoIP phones, WLAN, security cameras Telco central of ce equipment: xDSL, ISDN, PABX Distributed power architectures (24 V/48 V bus) Industrial controls LED lighting 2 DC-DC Product Selector Guide September 2008