Product Overview NCP1910: High Performance Combo Controller for ATX Power Supplies For complete documentation, see the data sheet Product Description Housed in a SO-24WB package, the NCP1910 combines a state-of-the-art circuitry aimed to powering next generation of ATX or flat TVs converters. With a 65 kHz Continuous Conduction Mode Power Factor Controller and a LLC controller hosting a high-voltage driver, the NCP1910 is ready to power 85+ types of offline power supplies. To satisfy stringent efficiency considerations, the PFC circuit implements an adjustable frequency fold back to reduce switching losses as the load is going light. To cope with all the signal sequencing required by the ATX and flat TVs specifications, the controller includes several dedicated pins enabling handshake between the secondary and the primary sides. These signals include a power-good line but also a control pin which turns the controller on and off via an opto coupler. Safety-wise, a second OVP input offers the necessary redundancy in case the main feedback network would drift away. Finally, a fast fault input immediately reacts in presence of an over current condition by triggering an auto-recovery soft-start sequence. Features • • • • • • Benefits PFC frequency fold back LLC Skip Dynamic Response enhancers Adjustable Line Brown-Out Protection On/off and power Good Management Signam Redundant Vbulk Over Voltage Protection • • • • • • Applications Improves light load efficiency Improves light load efficiency Reduces bulk undershoot Rugged Design, Reduce surrounding part count Reduce Surrounding Part Count Robust Protection End Products • Flat panel display powr converters • High power ac-dc adpaters for notebooks • Computing power supplies • ATX or Server power supplies • LCD or Plasma TVs Part Electrical Specifications Product Compliance Status Topolog y Control Mode fsw Typ (kHz) StandUVLO by Mode (V) Short Circuit Protecti on Latch Soft Start VCC Max Drive (V) Cap. (mA) Packag e Type NCP1910A100DWR2 G Pb-free Active HalfBridge Current Mode Up to 500 Yes 9/10.4 Yes Yes Yes 20 500 / 1000 SOIC24 NCP1910A65DWR2G Pb-free Active HalfBridge Current Mode Up to 500 Yes 9/10.4 Yes Yes Yes 20 500 / 1000 SOIC24 Active HalfBridge Current Mode Up to 500 Yes 9/10.4 Yes Yes Yes 20 500 / 1000 SOIC24 Active HalfBridge Current Mode Up to 500 Yes 9/10.4 Yes Yes Yes 20 500 / 1000 SOIC24 Halide free Halide free NCP1910B100DWR2 G Pb-free NCP1910B65DWR2G Pb-free Halide free Halide free Application Diagram For more information please contact your local sales support at www.onsemi.com Created on: 6/30/2016