NXP Semiconductors TEA173x / TEA175x GreenChip SMPS IC

NXP Semiconductors TEA173x和TEA175x是GreenChip III開關模式電源(SMPS)連接器IC，支持提供高效率及可靠電源。NXP TEA175x為GreenChip III第三代SMPS控制器IC，它結合了功率係數修正控制器及返馳控制器。這些特別的內建綠色功能於所有功率水平提供高效率。TEA175x SMPS控制器IC用於高達250W的功率要求。NXP Semiconductors TEA173x GreenChip SMPS控制器IC專用於反馳式拓樸，並在峰值電流及頻率控制模式下運行。TEA173x IC包括過電保護(OPP)。這允許控制器可於限定時間內在過電力情況下運行。TEA173x用於高達75W的功率需求。

Features

  • SMPS controller IC enabling low-cost applications
  • Large input voltage range (12V to 30V)
  • Integrated OverVoltage Protection on pin VCC
  • Very low supply current during start-up and restart (10μA typical)
  • Low start-up voltage (13.2V typical)
  • Low supply current during normal operation (0.55mA typical no load)
  • Overpower or high/low line compensation
  • Adjustable overpower time-out
  • Adjustable overpower restart timer
  • Fixed switching frequency with frequency jitter to reduce EMI
  • Frequency reduction at medium power operation to maintain high efficiency
  • Frequency reduction with fixed minimum peak current at low power operation to maintain high efficiency at low output power levels
  • Frequency increase at peak power operation
  • Slope compensation for CCM operation
  • Low and adjustable OverCurrent Protection (OCP) trip level
  • Adjustable soft start
  • Two protection inputs (e.g. for input UVP and OTP)
  • IC overtemperature protection

應用

  • Other Applications requiring efficient and cost-effective power supply solutions
  • Notebook Adapters

視訊

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Block Diagram

Block Diagram - NXP Semiconductors TEA173x / TEA175x GreenChip SMPS IC