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PrimAccurate™ High Power, Off-Line Digital PWM N-Channel MOSFET Controller


Digital PWM current-mode controller for quasi-resonant operations

The iW1710 is a high performance, high power AC/DC controller designed to drive an N-channel power MOSFET for peak current mode 10W-40W PWM flyback power supplies. Ideal for power adapters in networking applications such as wireless gateways, cable modems and ADSL modems, the iW1710 offers no load power consumption less than 150mW.

As a PrimAccurate™ controller, which use primary-side control algorithms, the iW1710 does not need any direct secondary-side feedback components, eliminating the need for optocouplers, reducing component count and solution cost. Additional features include Dialog's proprietary EZ-EMI™ technology, quasi-resonant control for optimal efficiency at heavy loads, cable and connector voltage drop compensation options and full protection from fault conditions.

For Improved Performance - See iW1760

Lifecycle status

● Active


Less than 150mW No-Load Power Consumption

Ideal for 10W-40W Power Supplies

Low 10uA Start-Up Current

130kHz PWM Switching Frequency

PrimAccurate™ - Primary-Side Control, No Optocoupler Needed

Quasi-resonant Control for Optimal Efficiency

Fast Dynamic Load Regulation

Fully Protected from Fault Conditions

  • Output Overvoltage
  • Sense Resistor Short Circuit Protection
  • Overtemperature and Overvoltage Protection (Latchable)
  • Input Undervoltage and Overvoltage Protection


10W-40W Power Supplies for Networking Applications

ADSL Modems, Cable Modems, Wireless Access Points and VOIP Gateways



Block Diagrams


Typical Applications Diagram


Functional block diagram

To order a sample of any of our products, please complete the following form. We will provide up to five parts free of charge. Our sales department will provide pricing for samples orders exceeding five parts.

Sample Request Form

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Name Date Version
iW1710 Datasheet (1.49 MB) 08/02/2021 2.6
White Papers & Technical Articles
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What is Digital Power White Paper (597.24 KB)