STEVAL-ILL016V2: 350mA, 700mA, 1A @ 40V Max, TRIAC
Summary
This application note presents a low-cost driver for LEDs that is compatible with TRIAC phase-control dimmers. The design gives luminaire manufacturers a low-cost, commonly available dimming option for home fixtures. A side benefit is that, when not wired to a dimmer, the unit's power factor is over 0.9. The design is based on the L6562A transitionmode PFC controller driving a single stage PFC-flyback power converter.
An STMicroelectronics Patent Application is pending for the method for dimming an offline LED driver by means of a TRIAC based dimmer as described in this document.
An STMicroelectronics Patent Application is pending for the method for dimming an offline LED driver by means of a TRIAC based dimmer as described in this document.
Specifications
| Manufacturer | STMicroelectronics |
|---|---|
| Category | Lighting |
| Sub-Category | LED Drivers - AC / Offline |
| Eval Board Part Number | 497-10368-ND |
| Eval Board Supplier | STMicroelectronics |
| Eval Board |
Board not Stocked
|
| AC Voltage |
115 V
|
| Outputs and Type |
1 Isolated
|
| Current Out |
350 mA
700 mA 1 A |
| Voltage Out (Max) |
40 V
|
| Efficiency @ Conditions |
>82%, 120V in, No Dimmer, 40V @ 19 W
|
| Features |
Dimming Control
PFC |
| Switching Frequency |
1 MHz
|
| Component Count + Extras |
76 + 2
|
| Design Author |
STMicroelectronics
|
| Application / Target Market |
Lighting: LED Home Lighting
|
| Voltage In |
96 ~ 132 VAC
|
| Power Factor | |
| Standard(s) | |
| Main I.C. Base Part |
L6562A
TSM1052 |
| Date Created By Author | 2010-09 |
| Date Added To Library | 2011-03 |
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