ISOW7741-Q1
- Qualified for automotive applications
- AEC-Q100 qualified with the following results:
- Device temperature Grade 1: –40°C to +125°C ambient temperature range
- 100Mbps data rate
- Integrated DC-DC converter with
low-emissions, low-noise
- Emission optimized to meet CISPR25
- Low frequency power converter at 25MHz enabling low noise performance
- Low output ripple: 24mV
- High efficiency output power
- Efficiency at max load: 46%
- Up to 0.55W output power
- VISOOUT accuracy of 5%
- 5V to 5V: Max available load current = 110mA
- 5V to 3.3V: Max available load current = 140mA
- 3.3V to 3.3V: Max available load current = 60mA
- Independent power supply for channel isolator
& power converter
- Logic supply (VIO): 1.71V to 5.5V
- Power converter supply (VDD): 3V to 5.5V
- Robust electromagnetic compatibility (EMC)
- System-level ESD, EFT, and surge immunity
- ±8kV IEC 61000-4-2 contact discharge protection across isolation barrier
- High CMTI: 100kV/µs (typical)
- Safety Related Certifications:
- VDE reinforced insulation per DIN EN IEC 60747-17 (VDE 0884-17)
- UL 1577 component recognition program
- IEC 62368-1, IEC 61010-1, IEC 60601-1 and GB 4943.1 certifications
- Extended temperature range: –40°C to +125°C
- 20-pin wide body SOIC package
The ISOW7741-Q1 and ISOW7742-Q1 devices are galvanically-isolated quad-channel digital isolator with an integrated high-efficiency power converter with low emissions. The integrated DC-DC converter provides up to 550mW of isolated power, eliminating the need for a separate isolated power supply in space-constrained isolated designs.
The high-efficiency of the power converter allows for operation at a wide operating ambient temperature range of –40°C to +125°C. This device provides improved emissions performance, allowing for simplified board design and has provisions for ferrite beads to further attenuate emissions. The ISOW7741-Q1 and ISOW7742-Q1 has been designed with enhanced protection features in mind, including soft-start to limit inrush current, over-voltage and under-voltage lock out, fault detection on the EN/FLT pin, overload and short-circuit protection, and thermal shutdown.
The ISOW7741-Q1 and ISOW7742-Q1 devices provide high electromagnetic immunity while isolating CMOS or LVCMOS digital I/Os. The signal-isolation channel has a logic input and output buffer separated by a double capacitive silicon dioxide (SiO2) insulation barrier, whereas, power isolation uses on-chip transformers separated by thin film polymer as insulating material. If the input signal is lost, the default output is high for the ISOW7741-Q1 and ISOW7742-Q1 devices without the F suffix and low for the ISOW7741F-Q1 and ISOW7742-Q1 devices with the F suffix. The ISOW774x-Q1 can operate from a single supply voltage of 3V to 5.5V by connecting VIO and VDD together on PCB. If lower logic levels are required, these devices support 1.71V to 5.5V logic supply (VIO) that can be independent from the power converter supply (VDD) of 3V to 5.5V. VISOIN and VISOOUT needs to be connected on board with either a ferrite bead or fed through a LDO.
These devices help prevent noise currents on data buses, such as CAN and LIN, or other circuits from entering the local ground and interfering with or damaging sensitive circuitry. Through remarkable chip design and layout techniques, electromagnetic compatibility of the device has been significantly enhanced to ease system-level ESD, EFT, surge and emissions compliance. The device is available in a 20-pin SOIC wide-body (SOIC-WB) DFM package.
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技術資料
| 上位の文書 | タイプ | タイトル | フォーマットオプション | 最新の英語版をダウンロード | 日付 | |
|---|---|---|---|---|---|---|
| 証明書 | VDE Certificate for Reinforced Isolation for DIN EN IEC 60747-17 (Rev. AB) | 2026/07/15 | ||||
| 証明書 | TUV Certificate for Isolation Devices (Rev. M) | 2026/05/07 | ||||
| 証明書 | UL Certificate of Compliance File E181974 Vol 4 Sec 6 (Rev. S) | 2026/05/07 | ||||
| 証明書 | CSA Certificate for ISOW774xDFM (Rev. B) | 2025/08/20 | ||||
| 証明書 | CQC Certificate for ISOxxDFM (Rev. B) | 2025/08/19 | ||||
| 機能安全情報 | ISOW7741-Q1 Functional Safety FIT Rate, FMD and Pin FMA | PDF | HTML | 2022/05/16 |
設計と開発
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ISOW7741DFMEVM — ISOW7741 DC/DC コンバータ内蔵クワッド チャネル デジタル アイソレータの評価基板
ISOW7741DFMEVM は、20 ピン WB (幅の広い) SOIC パッケージ (パッケージ コード DFM) に封止済みで、高効率かつ低 EMI の DC/DC コンバータを内蔵した、クワッドチャネル、高性能、5,000VRMS 対応の強化絶縁型デジタル アイソレータである ISOW774x の評価に使用できる評価基板です。この評価基板は十分な数のテスト ポイントとジャンパ オプションを実装しており、最小点数の外部部品でデバイスを評価することができます。
| パッケージ | ピン数 | CAD シンボル、フットプリント、および 3D モデル |
|---|---|---|
| SOIC (DFM) | 20 | Ultra Librarian |
購入と品質
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