Renesas IW2206-10

Overview

The iW2206-10 from Renesas Electronics is a digital power factor correction (PFC) boost controller in SOT-23-6 package, designed for two-stage AC/DC power supplies up to 250W. It delivers PF > 0.9 and THD < 20% across 90–305VAC input at ≥33% load, regulates DC bus voltage within ±3%, and achieves <150mW standby power at 230VAC/100W.

For engineers reviewing the iW2206-10 datasheet, iW2206-10 pinout, iW2206-10 application, or iW2206-10 equivalent, key selection considerations include its bipolar PNP gate-driver optimization, configurable DC bus mode ("following" or "fixed"), adaptive current limiting for low audible noise, and comprehensive protection suite including OVP, OPP, brown-out, and over-temperature.

Technical Context

The iW2206-10 implements transition-mode (critical conduction mode) digital control with Dialog's PF-Boost™ technology, eliminating external loop compensation while maintaining stability across line and load variations. Its integrated ZCD/CS/CFG pin supports simultaneous zero-current detection, current sensing, and configuration via resistor network.

It operates with VVCC from 8.0V to 20V, supports universal AC input (90–305VAC), and features fast PFC ready time (<0.2s) enabled by advanced startup control and adaptive peak current limit. Output DC bus voltage is user-configurable via feedback divider, enabling flexible system-level integration with downstream DC-DC or LED drivers.

Key Specifications

Pinout & Package

Package: SOT-23-6 - surface-mount, thermally enhanced plastic package with 190°C/W junction-to-ambient thermal resistance, suitable for high-density power supply layouts.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar PFC controller applications.

Compared with UCC28056DR and FAN6300MX, the iW2206-10 delivers superior THD/PF performance with zero external compensation, supports bipolar PNP gate drive for faster turn-off, and enables <150mW standby-making it optimal for next-generation energy-compliant, noise-sensitive, and space-constrained PFC stages.

Availability

iW2206-10 is available at Aetrix Electronics and suitable for two-stage LED lighting drivers, universal-input AC/DC adapters, and industrial power supplies requiring stable component supply, consistent parametric performance, and long-term lifecycle support.

Supply support for iW2206-10 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 Corporation is a global semiconductor leader delivering microcontrollers, analog, power, and SoC solutions for automotive, industrial, infrastructure, and IoT applications.

The iW2206-10 belongs to Renesas' digital PFC controller product line, engineered specifically for high-efficiency, low-noise, and ultra-low-standby AC/DC power conversion in compact form factors.

FAQ

What distinguishes the iW2206-10 from other iW2206 variants?

The iW2206-10 is specifically optimized for gate drive with bipolar PNP pull-down, improving MOSFET turn-off speed and reducing shoot-through risk compared to the iW2206-00 (diode pull-down) variant. This makes iW2206-10 ideal for high-frequency, high-efficiency boost stages where precise gate timing is critical. All iW2206-10 functional specifications-including PF > 0.9, THD < 20%, and <0.2s PFC ready time-remain identical to the family baseline.

Does the iW2206-10 require external loop compensation components?

No, the iW2206-10 uses fully digital transition-mode control that eliminates the need for external loop compensation components. Its embedded algorithm maintains stability across all AC line voltages (90–305VAC) and load conditions (33–100%), simplifying design and reducing BOM count. This digital architecture is intrinsic to the iW2206-10 and does not rely on external op-amps or RC networks.

How does the iW2206-10 achieve <150mW standby power?

The iW2206-10 achieves <150mW standby power at 230VAC/100W through ultra-low quiescent current design and intelligent gate-drive optimization. Its digital core remains active in standby, avoiding the complexity of PFC stage shutdown circuitry. This capability is validated per specification and applies directly to the iW2206-10 variant-enabling compliance with stringent energy standards like Energy Star and EU CoC Tier 2 without additional components.

Can the iW2206-10 support both "following AC" and "fixed" DC bus configurations?

Yes, the iW2206-10 supports both DC bus modes via resistor configuration on the CS/ZCD/CFG pin. The "following AC" mode tracks rectified line voltage for maximum efficiency, while the "fixed" mode provides a stable DC rail for downstream regulation. This dual-mode flexibility is implemented in hardware and applies identically across all iW2206 variants, including the iW2206-10.

What protections are integrated into the iW2206-10?

The iW2206-10 integrates output over-voltage (OVP), over-power (OPP), AC over-voltage/under-voltage (brown-out), cycle-by-cycle peak current limit, loop-open, current-sense-resistor short, and over-temperature protection. These are hardware-based, autonomous functions that trigger immediate shutdown or hiccup mode-no firmware or external supervision required. All protections apply natively to the iW2206-10 and are verified in production test.