現在提供此產品的更新版本
功能相同，但針腳輸出與所比較的裝置不同。
TPSI3050-Q1
- No isolated secondary supply required
- Drives external power transistors or SCRs
- 5-kV RMS reinforced isolation
- 10-V gate drive with 1.5/3-A peak source and sink current
- Up to 50-mW supply for external auxiliary circuitry
- Supports AC or DC switching
- Supports two-wire or three-wire modes
- Seven levels of power transfer, resistor selectable
- Functional Safety-Capable
- AEC Q-100 qualified for
automotive applications:
- Temperature grade 1: –40 to +125°C, T A
- Safety-Related Certifications
- 7071-V PK reinforced isolation per DIN EN IEC 60747-17 (VDE 0884-17)
- 5-kV RMS isolation for 1 minute per UL 1577
The TPSI3050-Q1 is a fully integrated, isolated switch driver, which when combined with an external power switch, forms a complete isolated solid state relay (SSR). With a nominal gate drive voltage of 10 V with 1.5/3.0-A peak source and sink current, a large variety of external power switches can be chosen to meet a wide range of applications. The TPSI3050-Q1 generates its own secondary bias supply from the power received from its primary side, so no isolated secondary supply bias is required. Additionally, the TPSI3050-Q1 can optionally supply power to external supporting circuitry for various application needs.
The TPSI3050-Q1 supports two modes of operation based on the number of input pins required. In two-wire mode, typically found in driving mechanical relays, controlling the switch requires only two pins and supports a wide voltage range of operation of 6.5 V to 48 V. In three-wire mode, the primary supply of 3 V to 5.5 V is supplied externally, and the switch is controlled through a separate enable. Available in three-wire mode only, the TPSI3050S-Q1 features a one-shot enable for the switch control. This feature is useful for driving SCRs that typically require only one pulse of current to trigger.
The secondary side provides a regulated, floating supply rail of 10 V for driving a large variety of power switches with no need for a secondary bias supply. The application can drive single power switches for DC applications or dual back-to-back power switches for AC applications, as well as various types of SCR. The TPSI3050-Q1 integrated isolation protection is extremely robust with much higher reliability, lower power consumption, and increased temperature ranges than traditional mechanical relays and optocouplers.
The power transfer of the TPSI3050-Q1 can be adjusted by selecting one of seven power level settings using an external resistor from the PXFR pin to VSSP. This action allows for tradeoffs in power dissipation versus power provided on the secondary depending on the needs of the application.
您可能會感興趣的類似產品
具備升級功能，可直接投入使用替代所比較的裝置。
技術文件
設計與開發
如需其他條款或必要資源，請按一下下方的任何標題以檢視詳細頁面 (如有)。
TPSI3050Q1EVM — 具有強化型隔離且適用於車用負載開關驅動器的 TPSI3050-Q1 評估模組
ACTIVE-PRECHARGE-CALC — 主動預充電參考設計 (TIDA-050063) 計算機工具
SLVRBI9 — TPSI305x 設計計算機
TIDA-050058 — 固態繼電器的零交叉切換參考設計
此參考設計展示如何以固態繼電器實現零交叉切換 (ZCS)。參考設計配備 TPSI3050-Q1 隔離開關驅動器。TPSI3050-Q1 裝置整合了層壓變壓器，在將訊號和電源傳輸至二次側時實現隔離。如此就不需要任何隔離偏壓電源。此外，TPSI3050-Q1 裝置可爲位於高電壓 (HV) 側的外部電路提供輔助電流 (IAUX)。ZCS 會在維持低電壓 (LV) 和 HV 側之間的訊號隔離情況下完成。此參考設計實現了具有 110-VRMS、60-Hz AC 電源的 12-V、200-µs 延遲 ZCS。
TIDA-050059 — 適用於固態繼電器的過電流與過熱防護參考設計
此參考設計顯示如何實現固態繼電器的過電流與過熱防護。參考設計配備 TPSI3050-Q1 5-kVRMS 強化型隔離開關驅動器。TPSI3050-Q1 裝置整合了層壓變壓器，在將訊號和電源傳輸至二次側時實現隔離。如此就不需要任何隔離偏壓電源。此外，TPSI3050-Q1 裝置可爲位於高電壓 (HV) 側的外部電路提供電源。此參考設計最多可支援 500-VDC 或 350-VAC 切換，具最大值為 4-A 負載條件。
TIDA-050063 — 高電壓固態繼電器主動預充電參考設計
此參考設計引進創新電路拓撲，可為混合動力汽車 (HEV) 與電動車 (EV) 的大型 DC 鏈路電容器預先充電。此參考設計的系統不需要微控制器，也可搭配 5-V 電源運作。參考設計具有 TPSI3052-Q1，以提供 5-kVRMS 強化隔離額定值。TPSI3052-Q1 裝置整合了層壓變壓器，在將訊號和電源傳輸至二次側時實現隔離。如此就不需要離散隔離式偏壓電源。此外，TPSI3052-Q1 裝置可爲位於高電壓 (HV) 側的外部電路提供電源，以監控電流。此參考設計最多可支援 800-V 系統及高達 4-AAVG 的改變電流，可為高達 2-mF 的負載電容充電。
| 封裝 | 針腳 | CAD 符號、佔位空間與 3D 模型 |
|---|---|---|
| SO-MOD (DWZ) | 8 | Ultra Librarian |
訂購與品質
建議產品可能具有與此 TI 產品相關的參數、評估模組或參考設計。