This application note describes the characteristics and features of a 65 W demonstration board (EVL6566B-65W-QR), tailored to the specifications of a typical hi-end portable computer power supply.
The peculiarities of this design are the very high average efficiency of about 90%, without synchronous rectification, and very low no-load consumption of 100 mW at 230 Vac. The result is that this converter is more than compliant with Energy Star® eligibility criteria (EPA rev. 2.0 EPS).
| Manufacturer | STMicroelectronics |
|---|---|
| Category | AC/DC and DC/DC Conversion |
| Sub-Category | AC/DC SMPS - Single Output |
| Eval Board Part Number | 497-10165-ND |
| Eval Board Supplier | STMicroelectronics |
| Eval Board |
Normally In Stock
|
| AC Voltage |
115 V
230 V Universal (115 / 230V) |
| Outputs and Type |
1 Isolated
|
| Voltage Out |
19 V
|
| Current Out |
3.42 A
|
| Output Power |
65 W
|
| Features |
Energy Standard Compliant
Light Load Mode Open Circuit Protection Over Voltage Protection PFC Short Circuit Protection Shutdown, Enable, Standby Soft Start Thermal Protection Under Voltage Protection, Brown-Out |
| Efficiency @ Conditions |
>88%, 230V in, 19V @ 25 ~ 100% Load
>88%, 115V in, 19V @ 25 ~ 100% Load |
| No-load Input Power @ Voltage |
75 mW @ 115 V
94 mW @ 230 V |
| Switching Frequency |
165 kHz
|
| Internal Switch |
No
|
| Component Count + Extras |
89 + 2
|
| Voltage In |
90 ~ 264 VAC
|
| Design Author |
STMicroelectronics
|
| Application / Target Market |
Battery Chargers
Computers LCD TV / Monitor Set-Top Boxes |
| Main I.C. Base Part |
L6566B
|
| Date Created By Author | |
| Date Added To Library | 2012-01 |
Ireland
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