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iW1700 - Zero Power No-Load Off-Line Digital PWM Controller

General Description

The iW1700 is a high performance AC/DC power supply controller which uses digital control technology to build peak current mode PWM flyback power supplies.

Key Features

  • while minimizing the external component count, simplifying EMI design and lowering the total bill of material cost. The iW1700 removes the need for secondary feedback circuitry while achieving excellent line and load regulation. It also eliminates the need for loop compensation components while maintaining stability over all operating conditions. Pulse-by-pulse waveform analysis allows for a loop response that is much faster than traditional.

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📁 Similar Datasheet

Part Number Description Manufacturer
iW1700 Zero Power No-Load Off-Line Digital PWM Controller Renesas
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Other Datasheets by Dialog Semiconductor (now Renesas)

Part Number Description
iW1707 Low-Power Off-Line Digital Green-Mode PWM Controller
iW1709 Off-Line Digital Green-Mode Quasi-Resonant PWM Controller
iW1760B Off-Line Digital Green-Mode Quasi-Resonant PWM Controller
iW1770 Off-Line Digital Quasi-Resonant PWM Controller with Peak Power Operation
iW1780 Rapid Charge AC/DC Digital Quasi-Resonant PWM Controller

Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

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iW1700 Zero Power No-Load Off-Line Digital PWM Controller 1 Description The iW1700 is a high performance AC/DC power supply controller which uses digital control technology to build peak current mode PWM flyback power supplies. The device together with an external active device (depletion mode NFET or NPN BJT) provides a fast start-up meanwhile achieving ultra-low no-load power consumption. The device directly drives a power BJT and operates in quasi-resonant mode to provide high efficiency along with a number of key built-in protection features while minimizing the external component count, simplifying EMI design and lowering the total bill of material cost. The iW1700 removes the need for secondary feedback circuitry while achieving excellent line and load regulation.