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iW3628
Single-Stage, 20W Non-Dimmable Off-Line SSL LED Driver with High PF and Low Ripple
Not Recommended for New Designs
High-power factor and low-ripple current
The iW3628 integrates high power factor (PF), low output ripple and low total harmonic distortion (THD) in a single-stage SSL LED driver for isolated and non-isolated, 20W, non-dimmable LED replacement bulb applications.
The iW3628 integrates a unique hybrid control scheme that allows designers to configure PF between >0.7 and >0.9 to manage the trade-off between PF and LED output current ripple. This unique feature enables high PF and low ripple from a low-cost solution.
The iW3628 reduces the BOM cost and solution size by incorporating Dialog’s proprietary PrimAccurate™ technology, eliminating the need for a secondary side regulator and optical feedback isolator. It also uses lower-cost BJTs, so there is no need for high-voltage electrolytic capacitors.
特征
Configurable PF to Manage Trade-Offs Between PF and Output Ripple
- PF从> 0.7（较低的纹波）至> 0.9（更高的波纹）
Low THD <20%
适用于20W离线固态照明应用雷竞技安卓下载
User-Configurable Internal LED Derating Over-Temperature Protection
- Three Selectable Temperature Thresholds
- 保持故障状态的光输出
- Hysteresis Allows Smooth Transition Back to Normal Operation
Fully Protected
- Over-Voltage/Over-Temperature Protection
- Output Over-Voltage, Over-Current and Short Circuit
- Open LED Fault Detection
- Sense-Resistor Short Circuit Protection
雷竞技安卓下载
Solid State Lighting
LED Lighting Ballast
框图
Typical Applications Diagram
功能框图
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