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NCP1603

ON Semiconductor
Part Number NCP1603
Manufacturer ON Semiconductor
Description PFC/PWM Combo Controller
Published Jan 16, 2007
Detailed Description NCP1603 PFC/PWM Combo Controller with Integrated High Voltage Startup and Standby Capability The NCP1603 is a Power Fac...
Datasheet PDF File NCP1603 PDF File

NCP1603
NCP1603

Overview
NCP1603 PFC/PWM Combo Controller with Integrated High Voltage Startup and Standby Capability The NCP1603 is a Power Factor Correction (PFC) and Pulse Width Modulation (PWM) combo controller.
It offers extremely low no−load standby power consumption that is suitable for the low−power consumer markets.
The key features of the device are listed below.
Features • This is a Pb−Free Device* PFC Features • Near−Unity Power Factor in Discontinuous and Critical Mode (DCM and 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) • Undervoltage Lockout with Hysteresis (9.
0/10.
5 V) PWM Features • Integrated Lossless High Voltage Startup Current Source • 100 kHz PWM Current−Mode Operation with Skipping Cycle Capability During Standby Condition • PFC Bias Voltage is Disabled in Standby Condition to Achieve Extremely Low No−Load Standby Power Consumption • Fault Protection Implemented by a Timer and Independent of Badly Coupled Auxiliary Transformer Winding • Primary Overcurrent Protection and Latched Overvoltage Protection • Internal 2.
5 ms Soft−Start • "6.
4% Frequency Jittering for Improved EMI Performance • Latched Thermal Shutdown with Hysteresis (140/165°C) • Undervoltage Lockout with Hysteresis (5.
6/7.
7/12.
6 V) Applications • Notebook Adapters • TV/Monitors http://onsemi.
com MARKING DIAGRAM 16 1 SO−16 D SUFFIX CASE 751B 1603D100G AWLYWW 1 A = Assembly Location WL = Wafer Lot Y = Year WW = Work Week G = Pb−Free Package PIN CONNECTIONS Vaux 1 FB2 2 CS2 3 GND2 4 Osc 5 GND1 6 Out1 7 VCC1 8 (Top View) 16 HV 15 NC 14 VCC2 13 Out2 12 Ramp 11 CS1 10 Vcontrol 9 FB1 ORDERING INFORMATION Device Package Shipping† NCP1603D100R2G SO−16 2500 Tape & Reel (Pb−Free) †For informat...


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