IW1689 Datasheet Low-Power Off-line Digital PWM Controller

Manufacturer: iWatt

IW1689 low-power off-line digital pwm controller by iWatt - Datasheet Preview

Datasheet Details

Part number	IW1689
Manufacturer	iWatt
File Size	730.31 KB
Description	Low-Power Off-line Digital PWM Controller
Download	IW1689 Download (PDF)

General Description

The iW1689 is a high performance AC/DC 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 prote

Overview

Not Recommended For New Designs iW1689 Low-Power Off-line Digital PWM Controller 1.

Key Features

Primary-side feedback eliminates opto-isolators and simplifies design.
Multi-mode operation for highest overall efficiency.
Very tight output voltage regulation.
No external compensation components required.
Complies with CEC/EPA/IEC no load power consumption and average efficiency regulations.
Built-in secondary constant-current control with primaryside feedback.
Low start-up current (8 µA typical).
Built-in soft s.

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