NXP – TEA1836: GreenChip SMPS Control IC

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TEA1836: GreenChip SMPS Control IC

The TEA18361T is a controller IC for low cost Switched Mode Power Supplies (SMPS). It is intended for flyback topologies. The built-in green functions provide high efficiency at all power levels. At high power levels the flyback 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 approximately 25% of the maximum peak current. Valley switching is used in all operating modes.

FEATURES

  • Up to 30V supply voltage range
  • Continuous VCC regulation during start-up and protection via the HV pin
  • Operating frequencies in all operating modes are outside the audible area
  • Adjustable soft start
  • 0.6mA no-load supply current during normal operation
  • Integrated high voltage start-up
  • Reduced opto current in burst mode
  • Integrated X-capacitor discharge
  • Power-down mode via the PROTECT pin
  • 0.2mA supply current in burst mode

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