Overview
Description
The iW3677 front-end flyback power factor correction device provides high power factor (PF >0.9) and low THD (<20%) down to 33% load current using Renesas' PF-Boost™ technology. The device can be configured in both isolated and non-isolated configurations, as a buck, buck-boost or flyback converter and consumes less than 150mW no-load standby power at 230VAC. The iW3677 integrates a high-voltage startup device which also reduces standby power consumption during normal operation.
The iW3677 integrates a full range of protection features including output overvoltage, over-power, input overvoltage and undervoltage, overcurrent and sense resistor short circuit protection, open loop and over-temperature protection.
For an option without integrated high-voltage startup, see iW3671.
Features
- 100W Offline Controller Supports Isolated and Non-isolated Flyback, Buck and Buck-Boost
- Integrated High-Voltage Startup Device
- PF >0.9 and THD <20% Across Input Voltage at Output Power >33%
- THD <10% at Full Load, Across the Input Voltage Range
- Supports Wide AC Input Voltage – 90VAC to 305VAC with Tight AC Load and Line Regulation (±3%)
- Fast PFC Ready Time <0.2s
- Standby Power - <150mW at Input Voltage of 230VAC
- Fully Protected
- Output Overvoltage, Over-Power, Overcurrent, Sense-Resistor Short Protections
- Input Voltage Undervoltage and Overvoltage Protection
- Built-In Over-Temperature Protection
- Open Loop Protection
- IEC 61000-3-2 Compliant
Comparison
Applications
- Commercial Lighting:
- External Fixture Drivers
Documentation
Featured Documentation
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| Type | Title | Date |
| Datasheet | PDF 2.18 MB 简体中文 | |
| Product Brief | PDF 532 KB 简体中文 | |
| Other | ZIP 6.08 MB | |
| Other | ZIP 6.25 MB | |
| Other | ZIP 8.16 MB | |
| Other | ZIP 13.91 MB | |
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Design & Development
Models
ECAD Models
Schematic symbols, PCB footprints, and 3D CAD models from SamacSys can be found by clicking on products in the Product Options table. If a symbol or model isn't available, it can be requested directly from the website.
Processing table
| SOIC-7 | Tape & Reel | 1 | Get Samples, |
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