Features
- 100W+ output power with enhanced internal MOSFET driver
- Supports isolated or non-isolated topologies including flyback, buck, or buck-boost
- High PF (>0.9) and low THD (<20%)
- Adaptive output voltage transient detection
- Enables fast transient response with variation < ±10% of nominal output voltage
- Accommodates large capacitance variations and capacitor aging configurable minimum switching frequency
- Enables low no-load standby power consumption (<200mW)
- Configurable PWM maximum switching frequency
- Optimizes for high efficiency, small size
- Active start-up – Reduces turn-on time without increasing standby power
- Tiny 6-pin SOT-23 package
- Fully protected
- Input brown-out protection
- Over-temperature protection
- Output overvoltage, overcurrent, and overload protection
Description
The iW3627 is a digital offline PWM controller that provides a constant voltage for smart LED lighting applications and general-purpose power supplies up to 90W with power factor (PF >0.9) and low THD (<20%). It supports the most common single-stage isolated and non-isolated topologies (buck, buck-boost, or flyback) as a front-end or standalone power supply in solid-state lighting (SSL) applications with advanced digital control technology.
The iW3627 is compatible with Transphorm GaN technology and is ideal for applications requiring high efficiency and power factor correction (PFC).
Parameters
| Attributes | Value |
|---|---|
| Function | Non-Dimmable |
| Output Power Max (W) | 100 |
| Switching Frequency (KHz) | 90 - 120 |
| No Load Power (mW) | 200 |
| Optimal VIN (V) | 90 - 277 |
| Stages | Single-Stage |
| Controller / Integrated | Controller |
| Key Features | PrimAccurate, Constant Voltage Control |
| Protection Features | OVP, OCP, UVLO, OTP |
| Dimmer Functions Supported | No Dimmer Support |
| Pass Device | FET |
| Power Factor Correction | >0.9 |
| Output Power (Min) (W) | 3 |
Package Options
| Pkg. Type | Pkg. Dimensions (mm) | Lead Count (#) | Pitch (mm) |
|---|---|---|---|
| SOT23-6L | 3 x 3 x 1.45 | 6 | 0.95 |
Application Block Diagrams
 | 140W-240W Dual Ports USB Type-C & USB PD Charger This USB charger system delivers up to 240W for fast, flexible dual USB-C charging with robust safety. |
 | 100W/140W USB-C & USB PD Power Supply USB-C & USB PD power supplies with multiple outputs, optimized efficiency, and cost-effective design. |
 | Intelligent Lighting System for Building Automation Intelligent lighting system with DALI-2 and customizable dimming for building automation. |
 | Smart Voice-Controlled Clotheshorse with Connectivity Smart clotheshorse system provides multiple control options with efficient power for easy laundry drying. |
 | Voice Activated DALI Lighting Controls One-chip DALI lighting control design with multi-language voice activation and optimized power. |
Additional Applications
- Smart LED lighting
- LED lighting ballasts
- Front-end pre-regulator
Complete Your Design
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Support Communities
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Body Marking - IW3627-00
Dear Renesas Team, We are making use of the part #IW3627-00 for the production, There is no body marking details available in the Datasheet, please help us to clarify the part we received the part with 2 different body marking previous lot and present lot, We are unable ...
Nov 9, 2024 -
IW3627 iTHD(%) issue at 32 W
Hi, We are encountering an iTHD issue in our product. Specifically, at 32W power and 230 Vac, Over time, at certain instances, it reaches 22-26% and it is repeating continuously in the long run. We have verified the resistance and capacitances values for FB (Pin 2) and CS (Pin ...
Feb 5, 2025 -
Spice model for iW3627
Want to simulate board circuit using iW3627 chip . Need spice model for iW3627 chip .
Jan 3, 2025
Support Communities
