Volver a NXP Semiconductors

NXP Semiconductors TEA18362T SMPS Controller IC

NXP Semiconductors TEA18362T GreenChip SMPS controller IC is intended for flyback power supplies that can deliver up to 75W. At high power levels, NXP TEA18362T operates in quasi-resonant (QR) mode. At lower power levels, the controller switches to frequency reduction (FR) or discontinuous conduction mode (DCM) and limits the peak current to ~25% of the peak current. At low power levels, when the switching frequency drops below 25kHz, the flyback converter switches to burst mode. This feature ensures high efficiency at low power and excellent no-load power performance.

Features

  • SMPS Controller IC for low-cost applications
  • Large supply voltage range (up to 30V)
  • Integrated high-voltage start-up
  • Continuous VCC regulation during start-up and protection via the HV pin, allowing a minimum VCC capacitor value
  • Reduced opto current in burst mode enabling low no-load power consumption
  • Operating frequencies in all operating modes are outside the audible area
  • Integrated X-capacitor discharge
  • Adjustable soft start
  • Power-down mode via the PROTECT pin
  • Low supply current during normal operation (0.6mA without load)
  • Low supply current during the non-switching state in burst mode (0.2mA)
  • Valley switching for minimum switching losses
  • Frequency reduction with fixed minimum peak current to maintain high efficiency at low output power levels
  • Mains voltage-independent OverPower Protection (OPP)
  • OverTemperature Protection (OTP)
  • Integrated overpower time-out
  • Continuous mode protection using demagnetization detection
  • Accurate Overvoltage Protection (OVP)
  • General-purpose input for latched protection; for use with system OverTemperature Protection (OTP)

Applications

  • Efficient and cost-effective power supplies up to 75W
Publicado: 2015-08-20 | Actualizado: 2022-03-11