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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
Features
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
Applications
10W-40W Power Supplies for Networking Applications
ADSL Modems, Cable Modems, Wireless Access Points and VOIP Gateways
Package
SOIC-8
Block Diagrams
Typical Applications Diagram
Functional block diagram
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