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TOP245YN 60W AC/DC Converter IC

৳ 60.00

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The TOP245YN is a cost effectively integrating the high voltage power MOSFET, PWM control, fault protection and other control circuitry onto a single CMOS chip. Many new functions are integrated to reduce system cost and improve design flexibility, perfor

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The TOP245YN is a cost effectively integrating the high voltage power MOSFET, PWM control, fault protection and other control circuitry onto a single CMOS chip. Many new functions are integrated to reduce system cost and improve design flexibility, performance and energy efficiency.

Depending on package type, either 1 or 3 additional pins over the TOPSwitch standard DRAIN, SOURCE and CONTROL terminals allow the following functions: line sensing (OV/UV, line feed-forward/DCMAX reduction), accurate externally set current limit, remote ON/OFF, synchronization to an external lower frequency, and frequency selection (132 kHz/ 66 kHz).

All package types provide the following transparent features: Soft-start, 132 kHz switching frequency (automatically reduced at light load), frequency jittering for lower EMI, wider DCMAX, hysteretic thermal shutdown, and larger creepage packages. In addition, all critical parameters (i.e. current limit, frequency, PWM gain) have tighter temperature and absolute tolerances to simplify design and optimize system cost.

 

Features:

  1. Features eliminate or reduce cost of external components
  2. Fully integrated soft-start for minimum stress/overshoot
  3. Externally settable accurate current limit
  4. Wider duty cycle for more power, smaller input capacitor
  5. Line under-voltage (UV) detection: no turn off glitches
  6. Line overvoltage (OV) shutdown extends line surge limit
  7. Line feed-forward with maximum duty cycle (DCMAX) reduction rejects ripple and limits DCMAX at high line
  8. Single resistor sets OV/UV thresholds, DCMAX reduction
  9. Frequency jittering reduces EMI and EMI filtering costs
  10. Regulates to zero load without dummy loading
  11. 132 kHz frequency reduces transformer/power supply size
  12. Half frequency option for video applications
  13. Hysteretic thermal shutdown for automatic recovery
  14. Large thermal hysteresis prevents PC board overheating
  15. Standard packages with omitted pins for large creepage
  16. Active-on and active-off remote ON/OF

Applications:

  1. LCD monitors
  2. Personal computers
  3. Small servers
  4. Laptop adapters
  5. Set-top boxes
  6. Digital TVs
  7. Printers
  8. DVD Players and Recorders
  9. UPS
  10. Video Games
  11. Broadband Modems
  12. Cellular phone adapters
  13. Audio Amplifiers

Packing List:

1Pc * TOP245YN 60W AC/DC Converter IC

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