PRELIMINARY
Zero-Voltage Switching Boundary Mode PFC LED Controller
The AAL416A and AAL416B are active PFC LED controllers with zero-voltage switching (ZVS) optimized to be used in AAI’s (patent pending) boundary-mode coupled inductor boost topology. Drive LEDs directly from the PFC stage or in a multiple stage topology.
AAI’s boundary-mode coupled inductor boost topology plus zero voltage switching allows systems to attain efficiencies of ~90%+. The AAL416A is a ZVS boundary-mode controller, while the AAL416B includes provisions for phase-cut sensing/dimming control.
Features - Implements AAI's proprietary Boundary-Mode Coupled Inductor Boost + ZVS topology (patent pending) for PFC LED lighting applications. Royalty-free license of topology granted with use with direct PFC LED control or with multi-stage topologies
- Extended capacitor life with minimal inrush current
- Significant efficiency improvement (~90%+) and low EMI
- Includes relevant AAL404 elements for triac dimming implementation (AAL416B only)
- ZVS over full line and load range, enabling higher switching frequencies
- Sync FET drive and control
- Self-protection features - fault monitoring
- Internal rectifiers for housekeeping power
- Adaptive gate drivers for optimal switching times
Applications
- AC/DC LED driver applications
- DC/DC LED driver applications
- Architectural lighting
- RGB backlighting
- LED signs
- LED decoration
Ordering Information
Ordering PN
| Subgroup | Description | Temp. Range
| Package | Packing Type
| Packing Qty
| AAL416A I-V28A-G-LF
| Controller | ZVS Boundary-Mode PFC Controller
| Industrial | Voltage Enhanced 28-Pin QFN
| Waffle Pack
| TBD | | AAL416A I-V28A-G-LF-TR | Controller | ZVS Boundary-Mode PFC Controller | Industrial | Voltage Enhanced 28-Pin QFN
| T&R | TBD | | AAL416B I-V28A-G-LF | Controller | ZVS Boundary-Mode PFC Controller + Triac Dimming
| Industrial | Voltage Enhanced 28-Pin QFN
| Waffle Pack
| TBD | | AAL416B I-V28A-G-LF-TR | Controller | ZVS Boundary-Mode PFC Controller + Triac Dimming
| Industrial | Voltage Enhanced 28-Pin QFN
| T&R | TBD |
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