IW1688
Features
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- Primary-side feedback eliminates opto-isolators and simplifies design Multi-mode operation for highest overall efficiency ±4% typical output voltage regulation No external pensation ponents required plies with CEC/EPA no load power consumption and average efficiency regulations Built-in output constant-current control with foldback Low start-up current (8 µA typical) Built-in soft start Built-in short circuit protection AC line under/overvoltage and output overvoltage protection Fixed 40 k Hz switching frequency
2.0 Description
The i W1688 is a high performance power supply controller which uses digital control technology to build sensorless peak current mode PWM flyback power supplies. The device provides high efficiency along with a number of key built-in protection features while minimizing the external ponent count and bill of material cost. The i W1688 removes the need for secondary feedback circuitry while achieving excellent line and load regulation. It...
