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The STEVAL-ISA126V1 is a 5 V-2 A application with 3.3 A peak current capability for 1.9 sec, using VIPer28H, a new off-line high voltage converter from STMicroelectronics.
In some applications an SMPS, normally supposed to deliver a certain amount of power, from time to time undergoes load peaks that can be even two or more times as much, but only for a time interval which is short if compared to the thermal time constants of the power components. Typical examples of such loads are printers and audio systems.
In these cases, it is more cost-effective to thermally design the system for the maximum continuous power and not for the peak power demand, which will be sustained only for a limited time window.
Such a design is possible thanks to the EPT function of VIPER28H, which allows the designer to fix the maximum time window during which the converter is able to manage the peak power still maintaining output voltage regulation. If the overload lasts more than this time window, the converter is automatically shut down in auto-restart mode, in order to avoid the damaging of the power components.主な特徴
- Input voltage range: 90 VRMS to 265 VRMS
- Output voltage: 5 V
- Max output current: IOUTmax 2 A
- Peak output current: IOUTpk 3 A
- Precision of output regulation: ΔVOUT_LF ±5%
- High frequency output voltage ripple: ΔVOUT_HF 50 mV
- Max ambient operating temperature: TA 60 ºC
- 800 V avalanche rugged power section
- PWM operation , at 115 kHz with frequency jittering for lower EMI
- Limiting current with adjustable set point
- On-board soft-start
- Safe auto-restart after a fault condition, low standby power (< 50 mW at 265 Vac)
- Adjustable and accurate over voltage protection, thermal shutdown with hysteresis, delayed overload protection
- RoHS compliant
品質 & 信頼性
| 製品型番 | Marketing Status | 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** |
|---|---|---|---|---|---|---|
| STEVAL-ISA126V1 |
量産中
|
CARD | インダストリアル | Ecopack2 | - |
|
STEVAL-ISA126V1
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
サンプル & 購入
| 製品型番 | 販売代理店からオーダー | STからオーダー | コア製品 | 製品ステータス | サプライヤ | ECCN (US) | ECCN (EU) | Country of Origin | Board production status | Budgetary Price (US$)*/Qty | |
|---|---|---|---|---|---|---|---|---|---|---|---|
| STEVAL-ISA126V1 | 2 distributors | 購入 | VIPER28 |
量産中
|
- | EAR99 | NEC | ITALY | - | 75.0 / 1 |
（*）概算用の希望小売単価（US$）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。
