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NCP1601A Datasheet(PDF) 1 Page - ON Semiconductor |
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NCP1601A Datasheet(HTML) 1 Page - ON Semiconductor |
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© Semiconductor Components Industries, LLC, 2005 December, 2005 − Rev. 4 1 Publication Order Number: NCP1601A/D NCP1601A, NCP1601B Compact Fixed Frequency Discontinuous or Critical Conduction Voltage Mode Power Factor Correction Controller The NCP1601 is a controller designed for Power Factor Correction (PFC) boost circuits. The device operates in fixed−frequency Discontinuous Conduction Mode (DCM) and variable−frequency Critical Conduction Mode (CRM) and takes advantages from both operating modes. DCM limits the maximum switching frequency. It simplifies the front−ended EMI filter design. CRM limits the maximum currents of the boost stage diode, MOSFET and inductor. It reduces the costs and improves the reliability of the circuit. This device substantially exhibits unity power factor while operating in DCM and CRM. The NCP1601 minimizes the required number of external components. It incorporates high safety protection features that make the NCP1601 suitable for robust and compact PFC stages. Features • Near−Unity Power Factor in DCM or CRM • Voltage−Mode Operation • Low Startup and Shutdown Current Consumption • Programmable Switching Frequency for DCM • Synchronization Capability • Overvoltage Protection (107% of Nominal Output Level) • Undervoltage Protection or Shutdown (8% of Nominal Output Level) • Programmable Overcurrent Protection • Thermal Shutdown with Hysteresis (95/140°C) • Two VCC Undervoltage Lockout Hysteresis Options: 4.75 V for NCP1601A and 1.5 V for NCP1601B • Pb−Free Packages are Available Typical Applications • Electronic Light Ballast • AC Adapters • TV & Monitors • Mid−Power Applications MARKING DIAGRAM x = A or B A = Assembly Location L, WL = Wafer Lot Y, YY = Year W, WW = Work Week G = Pb−Free Package G = Pb−Free Package http://onsemi.com PDIP−8 N SUFFIX CASE 626 1 8 1 8 SOIC−8 D SUFFIX CASE 751 NCP1601x AWL YYWWG 1 8 1601x ALYW G 1 8 PIN CONNECTIONS 1 FB 8 VCC 2 Vcontrol 3 Ramp 4 CS 7 Drv 6 GND 5 Osc (Top View) See detailed ordering and shipping information in the package dimensions section on page 15 of this data sheet. ORDERING INFORMATION |
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