IW1790-00

Power Supply Controllers, Monitors Overview

The iW1790-00 is a highly integrated AC/DC primary-side rapid charge PWM controller supporting XM-Comm technology. It operates in flyback topology with peak current mode DCM control. Key electrical parameters include a maximum VBIAS of 40V, UVLO rising at 15.5V and falling at 7.2V. The device provides one FET driver output with a maximum current of 1A. It supports an output power of up to 27W and switches at a frequency of 76 kHz.

Power Supply Controllers, Monitors Feature Summary

• Integrates primary-side regulation for rapid charging protocols
• Supports XM-Comm technology for secondary-side communication
• Eliminates the need for optocouplers in the design

Power Supply Controllers, Monitors Applications

• USB PD 3.0 AC/DC Power Adapters for Smartphones, Tablets, Laptops, and Other Mobile Devices
• USB PD 3.0 Power Supplies for Set-Top Boxes, Displays, Speakers
• USB PD 3.0 In-the-Wall Receptacles
• Lamps and Lighting Fixtures with USB PD 3.0 Ports

Power Supply Controllers, Monitors Procurement Notes

Verify availability status carefully as supply may be limited or restricted. Confirm package type and ordering suffixes match specific design requirements. Check for any recent lifecycle changes or obsolescence notices from Renesas Electronics Corporation before finalizing procurement plans.

Power Supply Controllers, Monitors Selection Notes

Select this component for designs requiring primary-side regulation without optocouplers. Ensure compatibility with XM-Comm enabled secondary controllers like the iW662 series. Verify that the 27W power limit and 76 kHz switching frequency meet the specific application's thermal and efficiency targets.

Power Supply Controllers, Monitors Part Context

This part belongs to the iW1790 family of AC/DC controllers. It is designed to work in conjunction with secondary-side synchronous rectifier controllers to form complete rapid charging solutions. The chipset approach helps reduce BOM cost and improve efficiency in travel adapters.

Power Supply Controllers, Monitors Replacement Considerations

Consider the iW1796 or iW1798 as potential substitutes within the same product family if pinout and feature sets align with specific design needs.