製品概要
概要
The EVLCMB1-90WADP demonstration board is a 19 V - 90 W converter, tailored for the typical specification of an ac-dc adapter for laptops and notebooks, with a wide input mains range and very low power consumption under light-load.
The architecture is based on a two-stage approach: a front-end transition mode PFC pre-regulator and a downstream LLC resonant half-bridge converter; the PFC and LLC are both integrated in the STCMB1 combo IC.
The PFC section uses a proprietary constant on-time control methodology that does not require a sinusoidal input reference, thereby reducing the system cost and external component count. The LLC section is based on a proprietary time shift control method with simple compensation; this improves the dynamic behavior and input ripple rejection resulting in a cleaner output voltage bringing advantages to the circuitry placed to the SMPS secondary side.
The STCMB1 device also embeds a high voltage start up generator, an x-capacitor discharge circuit and a complete set of protections. These features are fully exploited in the EVLCMB1-90WADP device to make a robust and safe SMPS, while keeping a reduced external component count.
The EVLCMB1-90WADP device is characterized by very high efficiency at the light loads that comes from the combination of the design and selection of the power components and the innovative burst mode management functions integrated in the STCMB1, including a proprietary IP that allows minimizing the number of cycles in the burst packet and so minimizing the switching losses.
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機能一覧
- Universal input mains voltage range: from 90 V ac to 264 V ac- frequency from 45 to 65 Hz
- Output voltage: 19 V, 4.75 A continuous operation
- Average efficiency: > 90%, according to European CoC ver. 5 Tier 2 for external power supplies
- Efficiency > 60% with Pout = 250 mW, according to EuP lot 6 Tier 2 for household and office equipment
- No load mains consumption: < 90 mW at 230 V ac, according to European CoC ver. 5 Tier 2 for external power supplies
- Mains harmonics: meets EN61000-3-2 Class-D and JEITA-MITI Class-D
- EMI: according to EN55022 Class-B
- Safety: meets EN60950 standards
- RoHS compliant
推奨コンテンツ
すべてのリソース
| Resource title | Version | Latest update | Actions | Details | ダウンロード |
|---|
Board Manufacturing Specifications (1)
| Resource title | Version | Latest update | Actions | Options | ||
|---|---|---|---|---|---|---|
| ZIP | 1.0 | 27 Mar 2016 | 27 Mar 2016 |
BOM (1)
| Resource title | Version | Latest update | Actions | Options | ||
|---|---|---|---|---|---|---|
| 2.0 | 19 Jul 2018 | 19 Jul 2018 |
Schematic Pack (1)
| Resource title | Version | Latest update | Actions | Options | ||
|---|---|---|---|---|---|---|
| 1.0 | 19 Jul 2018 | 19 Jul 2018 |
Quality and Reliability
| Part Number | Marketing Status | Package | Grade | RoHSコンプライアンスグレード | WEEE Compliant | Longevity Commitment | Longevity Starting Date | Material Declaration** |
|---|---|---|---|---|---|---|---|---|
| EVLCMB1-90WADP | Active 交換品交換品 | CARD | Industrial | Ecopack1 | - | - | - | |
EVLCMB1-90WADP
Package:
CARDMaterial Declaration**:
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Sample & Buy
| Part Number | 製品ステータス | Budgetary Price (US$)*/Qty | STから購入 | Order from distributors | Package | Packing Type | RoHS | Country of Origin | ECCN (US) | ECCN (EU) | Supplier | Core Product | Board production status | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| EVLCMB1-90WADP | | | distributors 販売代理店に在庫がない場合は、STのセールス･オフィスまでお問い合わせください |
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EVLCMB1-90WADP Active
販売代理店に在庫がない場合は、STのセールス･オフィスまでお問い合わせください
（*）概算用の参考価格（US$）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。