Renesas IW1830-EVAL

Overview

The IW1830-EVAL from Renesas Electronics is an evaluation board for the iW1830 off-line digital quasi-resonant PWM controller with integrated 700V power MOSFET, designed to demonstrate primary-side regulated flyback operation up to 15W universal-input AC/DC adapter applications. It supports fast dynamic load response, <50mW no-load consumption at 230VAC, and adaptive soft-start for capacitive loads from 330μF to 6000μF at ≥12V output.

For engineers reviewing the IW1830-EVAL datasheet, IW1830-EVAL pinout, IW1830-EVAL application, or IW1830-EVAL equivalent, this board enables rapid validation of iW1830-based adapter designs targeting home appliances, monitor power supplies, and network device adapters - with emphasis on EMI reduction, thermal behavior, and no-opto regulation performance.

Technical Context

The IW1830-EVAL implements a complete reference design for the iW1830 IC, featuring a 7-lead PDIP-packaged controller with integrated 700V/4A MOSFET, PrimAccurate™ primary-side feedback, and adaptive multi-mode (PWM/PFM) control. It operates in quasi-resonant mode with up to 79kHz switching frequency and includes built-in protections: output over-voltage, over-current, short-circuit, and over-temperature latch.

This board validates key iW1830 capabilities including no-loop-compensation stability, pulse-by-pulse waveform analysis for fast transient response, and EZ-EMI® layout techniques. It targets open-frame operation at ≤50°C ambient with ≤100°C package temperature, delivering 15W continuous output across 85–264VAC input.

Key Specifications

Availability

IW1830-EVAL is available at Aetrix Electronics and suitable for home appliance power supply development, monitor adapter qualification, and universal-input 15W AC/DC reference design validation requiring stable component supply and full-system debug capability.

Supply support for IW1830-EVAL includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

Renesas Electronics is a global semiconductor leader delivering microcontrollers, analog, power, and SoC solutions for automotive, industrial, infrastructure, and IoT applications.

The iW1830 product line delivers digitally controlled, high-efficiency AC/DC controllers for compact, low-noise, no-opto adapter and appliance power supplies - optimized for cost-sensitive, safety-critical, and energy-compliant designs.

FAQ

What is the purpose of the IW1830-EVAL evaluation board?

The IW1830-EVAL evaluation board demonstrates the full functionality of the iW1830 digital quasi-resonant PWM controller in a working 15W universal-input flyback power supply. It validates primary-side regulation, adaptive soft-start, EZ-EMI® layout, and protection features - enabling engineers to evaluate iW1830 performance before custom design integration.

Does the IW1830-EVAL include the iW1830 IC?

Yes, the IW1830-EVAL board integrates the iW1830 IC in its 7-lead PDIP package with internal 700V MOSFET. The board is pre-configured with supporting magnetics, snubbers, and feedback components to operate as a complete reference design out-of-box.

What input voltage range does the IW1830-EVAL support?

The IW1830-EVAL supports universal AC input from 85VAC to 264VAC, consistent with the iW1830's specification. It delivers regulated DC output up to 12V or higher, validated for continuous 15W operation under open-frame conditions at 50°C ambient.

Can the IW1830-EVAL be used for EMI compliance testing?

Yes - the IW1830-EVAL implements Renesas' EZ-EMI® layout methodology, minimizing common-mode noise and reducing dependency on Y-capacitors. It serves as a baseline for pre-compliance radiated/conducted EMI measurements in adapter-level certification workflows.

Is thermal performance data available for the IW1830-EVAL?

Yes - the IW1830-EVAL is characterized for thermal behavior per iW1830's absolute maximum ratings: junction temperature up to 150°C, thermal shutdown at 150°C with 120°C recovery, and θJA = 80°C/W. Measured package temperature remains ≤100°C at 15W continuous load in non-ventilated open-frame setup.