IW1797-39

Power Supply Controllers, Monitors Overview

The iW1797-39 is an AC/DC primary-side controller from the iW1797 series, utilizing DLNK technology for flyback topologies. It integrates high-performance voltage and current control with a fixed switching frequency of 140 kHz. The device operates within a supply voltage range up to 16 V and supports output voltages from -300 mV to 18 V. Designed for surface-mount installation in SOIC-8 packages, it functions reliably across temperatures from -40°C to +85°C with a quiescent current of 3.5 mA.

Power Supply Controllers, Monitors Feature Summary

• Integrates DLNK technology for primary-side regulation without optocouplers
• Provides high-performance voltage and current control loops
• Supports flyback topology with integrated power switch capabilities

Power Supply Controllers, Monitors Applications

• High power density adapters
• Low BOM cost power supplies
• Rapid Charge applications

Power Supply Controllers, Monitors Procurement Notes

Verify availability status as Mouser indicates limited supply or factory special order conditions. Confirm RoHS compliance details via official datasheet. Ensure ordering suffix matches required package variant. Validate lead times directly with Renesas Electronics due to potential distribution constraints.

Power Supply Controllers, Monitors Selection Notes

Select this component for designs requiring primary-side regulation to reduce bill of materials. Suitable for flyback converters needing fixed frequency operation at 140 kHz. Consider thermal performance within the specified operating temperature range. Verify compatibility with secondary side components if synchronous rectification is employed.

Power Supply Controllers, Monitors Part Context

Part of the iW1797 family of AC/DC controllers. Manufactured by Renesas Electronics Corporation using Silicon technology. Classified under PMIC - Power Management ICs and AC/DC Converters. Supports single output configurations.

Power Supply Controllers, Monitors Replacement Considerations

Consult official cross-reference lists for verified substitutes. No specific substitute part numbers are confirmed in the provided documentation.