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The STEVAL-ISA125V1 is a 5 V, 2 A demonstration application with 3.3 A peak current capability of 1.9 sec, using the new VIPer28LN offline high-voltage converter from STMicroelectronics.
In some applications, an SMPS can have load peaks which may be two or more times as high as the power it is supposed to deliver, though only for a short time compared to the thermal time constants of the power components. Typical examples of such loads include printers and audio systems.
In such cases, it is more cost-effective to thermally design the system for maximum continuous power and not for peak power demand, which is sustained only for a limited time.
Such a design is possible thanks to the EPT function of the VIPer28LN, which allows designers to fix the maximum time window during which the converter is able to manage the peak power and still maintain output voltage regulation. If the overload period exceeds the time window, the converter is automatically shut down and enters auto-restart mode until the overload is removed, thus preventing damage to the power components.主な特徴
- Input voltage range: 90 VRMS - 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 60 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, accurate overvoltage protection, thermal shutdown with hysteresis, delayed overload protection
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-ISA125V1 | 量産中 | CARD | インダストリアル | Ecopack2 | - | |
STEVAL-ISA125V1
Package:
CARDMaterial Declaration**:
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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 | ECCN (US) | Country of Origin | Board production status | Budgetary Price (US$)*/Qty | |
|---|---|---|---|---|---|---|---|---|---|
| STEVAL-ISA125V1 | 1 distributors | 購入 | VIPER28LN | 量産中 | EAR99 | ITALY | - | 75.0 / 1 |
（*）概算用の希望小売単価（US$）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。
