AC-DC Converter ICs with Adjustable Standby Operating Point

The STR6A100MV/HVD series from Sanken are power ICs for switching power supplies, incorporating a MOSFET and a current mode pwm controller IC.

The operating mode of the IC automatically changes to green-mode or burst oscillation mode according to load in order to improve the all load efficiency. The product achieves high cost-performance power supply systems with few external components.

Applications are expected to include:

  • White Goods
  • Office Automation Equipment
  • Audio Visual Equipment
  • Industrial Equipment
  • Other Switched-Mode Power Supply

(click on image to enlarge)

Features include:

  • Improving Circuit Efficiency (Since the step drive control can keep VRM of secondary rectification diodes low, the circuit efficiency can be improved by low VF)
  • Current Mode Type pwm Control
  • Soft Start Function
  • Adjustable Standby Operating Point
    • No Load Power Consumption < 15 mW
  • Operation Mode
    • Fixed Frequency, 100 kHz
    • Green-Mode, 25 kHz to 100 kHz
    • Burst Oscillation Mode
  • Random Switching Function
  • Slope Compensation Function
  • Leading Edge Blanking Function
  • Bias Assist Function
  • Protections
    • Overcurrent Protection (OCP): Pulse-by-Pulse
    • Overload Protection with Timer (OLP): Auto-restart
    • Overvoltage Protection (OVP): Auto-restart
    • Thermal Shutdown (TSD): Auto-restart

Sanken Electric Co. Ltd.
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