Datasheet4U Logo Datasheet4U.com

IW1677 - Low-Power Off-Line Digital Green-Mode PWM Controller

General Description

The iW1677 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 iW1677 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 solutions, resul.

📥 Download Datasheet

📁 Similar Datasheet

Part Number Description Manufacturer
iW1676 Low-Power Off-Line Digital Green-Mode PWM Controller iWatt
iW1676 PWM Controller Renesas
IW1678 Low-Power Off-line Digital Green-Mode PWM Controller iWatt
IW1688 Low Power Off Line Digital PWM Controller iWatt
IW1689 Low-Power Off-line Digital PWM Controller iWatt

Other Datasheets by Dialog Semiconductor (Renesas)

Part Number Description
iW1679 Off-Line Digital Green-Mode Quasi-Resonant PWM Controller
iW1679-50 Off-Line Digital Green-Mode Quasi-Resonant PWM Controller
iW1680 Digital PWM AC/DC Controller
iW1691 Digital PWM Current-Mode Controller
iW1699 Off-Line Digital Green-Mode 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.

View original datasheet text
iW1677 Low-Power Off-Line Digital Green-Mode PWM Controller 1 Description The iW1677 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 without compromising no-load power loss. 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 iW1677 removes the need for secondary feedback circuitry while achieving excellent line and load regulation.