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电子发烧友网>电子资料下载>IC datasheet pdf>NCP1653, pdf,NCP1653A datashee

NCP1653, pdf,NCP1653A datashee

2008-09-06 | rar | 555 | 次下载 | 免费

资料介绍

NCP1653, NCP1653A Compact, Fixed−Frequency,Continuous Conduction
Mode PFC Controller
The NCP1653 is a controller designed for Continuous Conduction
Mode (CCM) Power Factor Correction (PFC) boost circuits. It
operates in the follower boost or constant output voltage in 67 or 100
kHz fixed switching frequency. Follower boost offers the benefits of
reduction of output voltage and hence reduction in the size and cost
of the inductor and power switch. Housed in a DIP−8 or SO−8
package, the circuit minimizes the number of external components
and drastically simplifies the CCM PFC implementation. It also
integrates high safety protection features. The NCP1653 is a driver
for robust and compact PFC stages.
Features
• IEC1000−3−2 Compliant
• Continuous Conduction Mode
• Average Current−Mode or Peak Current−Mode Operation
• Constant Output Voltage or Follower Boost Operation
• Very Few External Components
• Fixed Switching Frequency: 67 kHz = NCP1653A,
Fixed Switching Frequency: 100 kHz = NCP1653
• Soft−Start Capability
• VCC Undervoltage Lockout with Hysteresis (8.7 / 13.25 V)
• Overvoltage Protection (107% of Nominal Output Level)
• Undervoltage Protection or Shutdown (8% of Nominal Output Level)
• Programmable Overcurrent Protection
• Programmable Overpower Limitation
• Thermal Shutdown with Hysteresis (120 / 150C)
• Pb−Free Packages are Available
Typical Applications
• TV & Monitors
• PC Desktop SMPS
AC Adapters SMPS
• White Goods
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