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This board implements a 75 W SMPS reference design, tailored to the specifications of a typical hi-end portable computer power supply (adapter). The peculiarities of this design are the very high efficiency at light load and the excellent global efficiency for a two-stage architecture. The high efficiency at high load is achieved without using synchronized rectification at secondary side and therefore offers a very cost effective solution.
The circuit is made up of two stages: a front-end PFC using the L6563 and a flyback converter based on the L6566A. The CV/CC controller TSM1014 allows the correct current limitation on the secondary side. The flyback stage works as master and it is dedicated to controlling the circuit operation, including the standby and protections. Additionally, it switches the PFC stage on and off by means of a dedicated pin (VCC_PFC), therefore helping to achieve an excellent efficiency even at light load, with low complexity.
Efficiency during active load and light load operation are compliant with Energy Star® Eligibility Criteria for both external (EPA rev. 2.0 EPS) and computer integrated (EPA rev. 4.0 COMPUTERS) power supplies. In addition, this design is also compliant with the latest computer requirements.主な特徴
- Universal input mains range: 90 - 264 Vac- Frequency 45 - 65 Hz
- Output voltage: 19 V @ 4 A continuous operation
- Mains harmonics: Acc. to EN61000-3-2 Class-D or JEIDA-MITI Class-D
- Standby mains consumption: < 0.14 W @ 230 Vac, < 0.085 W @ 115 Vac
- Active load average efficiency: better than 87% without synchronous rectification
- EMI: According to EN55022-Class-B
- Safety: According to EN60950
- Dimensions: 78x170 mm, 25 mm component maximum height
- PCB: Single side, 70 μm, CEM-1, Mixed PTH/SMT
サンプル & 購入
| 製品型番 | コア製品 | 製品ステータス | ECCN (US) | Country of Origin | Board production status | Budgetary Price (US$)*/Qty | STからオーダー | 販売代理店からオーダー |
|---|---|---|---|---|---|---|---|---|
| EVL6566A-75WES4 | L6563, L6566A | 量産中 | EAR99 | ITALY | - | 販売代理店に在庫がない場合は、STのセールスオフィスまでお問い合わせください |
EVL6566A-75WES4
コア製品
L6563, L6566A製品ステータス
量産中Budgetary Price (US$)*/Qty
（*）概算用の希望小売単価（US$）です。現地通貨でのお見積りについては、STのセールス･オフィスまたは販売代理店までお問い合わせください。
| 製品型番 | 製品ステータス | パッケージ | グレード | RoHSコンプライアンスグレード | WEEE Compliant | 材料宣誓書** |
|---|---|---|---|---|---|---|
| EVL6566A-75WES4 | 量産中 | CARD | Industrial | Ecopack1 | - | |
EVL6566A-75WES4
Package:
CARDMaterial Declaration**:
(**) st.comで提供している材料宣誓書は、パッケージ･ファミリ内で最も一般的に使用されているパッケージに基づく汎用ドキュメントの場合があります。そのため、特定の製品では100%正確ではない可能性があります。特定の製品情報については、セールスサポートまでお問い合わせください
