ADUM5412ARWZ - 4-Ch Isolator w/ DC-DC | Analog Devices
部品番号: ADUM5412ARWZ ✓ 生産中| 数量 | 単価 | 小計 |
|---|---|---|
| 1 | $6.5 | $6.50 |
| 10 | $5.85 | $58.50 |
| 100 | $5.2 | $520.00 |
| 500 | $4.68 | $2,340.00 |
| 1,000 | $4.16 | $4,160.00 |
ADUM5412ARWZ 概要
Digital isolators are components that transfer digital signals across an isolation barrier, preventing DC and noise from passing while allowing data and power transfer. They are essential in systems requiring galvanic isolation for safety, ground loop elimination, and noise immunity, such as industrial automation, medical equipment, and power conversion. The ADUM5412 integrates a DC-to-DC converter, enabling isolated power delivery without a separate transformer, simplifying design and reducing board space.
Key features include 2.5 kVrms isolation voltage, 150 Mbps data rate, 75 kV/µs CMTI, and an integrated DC-to-DC converter with adjustable output voltage. The device supports a wide supply voltage range of 3.0V to 5.5V on both sides, and provides up to 500 mW of isolated output power. The integrated converter eliminates the need for external transformers, reducing component count and design complexity.
The ADUM5412 uses Analog Devices' iCoupler technology, which employs chip-scale transformers for isolation, offering superior performance compared to optocouplers in terms of speed, reliability, and power efficiency. The device includes four independent isolation channels, configurable as 2/2 (two forward, two reverse) channel directionality, and features an enable pin for output control. The integrated DC-to-DC converter uses a push-pull architecture with a fixed switching frequency, providing stable isolated power with minimal ripple.
Typical applications include isolated SPI, RS-485, and CAN interfaces, isolated power supplies for sensor systems, and industrial fieldbus communication. The high CMTI and data rate make it suitable for motor drives, inverters, and other noisy environments. The integrated DC-to-DC converter is ideal for powering isolated side circuits without additional components.
When designing with the ADUM5412, ensure proper PCB layout with adequate creepage and clearance distances for the isolation rating. The integrated converter requires external capacitors for stability; refer to the datasheet for recommended values. Thermal considerations are important at high output power; the SOIC-W package has a thermal resistance of .
ドロップイン代替品: ADUM5412ARWZ — 同一パッケージでピン互換。PCBの作り直しが必要な異なるパッケージの部品は除外されています。
このシリーズのバリエーション
同一シリーズでドロップイン互換のモデル: ADUM5412ARWZ （同一形状・フットプリント） — 相違点: Package, Data Rate, Number of Channels, Common-Mode Transient Immunity (CMTI), Operating Temperature Range.
クイック比較ツール — 並列比較する代替部品を選択:
ADUM5411ARWZ
✅ ドロップイン ⚠️ 仕様未検証✓ 在庫あり
$4.16 / 個
データシートを見る →ADUM5410ARWZ
✅ ドロップイン ⚠️ 仕様未検証✓ 在庫あり
$5.44 / 個
データシートを見る →ADUM5402ARWZ
✅ ドロップイン✓ 在庫あり
$4.75 / 個
データシートを見る →ADUM5412ARWZ 最大定格＆電気的特性
| Number of Channels | 4 |
| Isolation Voltage | 2500 Vrms |
| データレート | 150 Mbps |
| CMTI | 75 kV/µs |
| Integrated DC-DC Converter | Yes |
| Output Power (Isolated) | 500 mW |
| Supply Voltage (VDD1) | 3.0 V to 5.5 V |
| Supply Voltage (VDD2) | 3.0 V to 5.5 V |
| Channel Directionality | 2/2 (2 forward, 2 reverse) |
| パッケージ | 24-SOIC-W (0.300" width) |
| 動作温度 | -40°C to +125°C |
| イネーブルピン | Yes |
| RoHS ステータス | Compliant |
| 実装タイプ | Surface Mount |
| Isolation Technology | iCoupler |
ADUM5412ARWZ ピン構成
| ピン 1 | VDD1 — Primary side supply voltage (3.0V to 5.5V) |
| ピン 2 | GND1 — Primary side ground |
| ピン 3 | VIA — Input channel A |
| ピン 4 | VOA — Output channel A |
| ピン 5 | VIB — Input channel B |
| ピン 6 | VOB — Output channel B |
| ピン 7 | VIC — Input channel C |
| ピン 8 | VOC — Output channel C |
| ピン 9 | VID — Input channel D |
| ピン 10 | VOD — Output channel D |
| ピン 11 | EN — Enable pin (active high) |
| ピン 12 | GND1 — Primary side ground |
| ピン 13 | GND2 — Secondary side ground |
| ピン 14 | VISO — Isolated output voltage from DC-DC converter |
| ピン 15 | GND2 — Secondary side ground |
| ピン 16 | VDD2 — Secondary side supply voltage (3.0V to 5.5V) |
| ピン 17 | GND2 — Secondary side ground |
| ピン 18 | VDD2 — Secondary side supply voltage |
| ピン 19 | GND2 — Secondary side ground |
| ピン 20 | VDD2 — Secondary side supply voltage |
| ピン 21 | GND2 — Secondary side ground |
| ピン 22 | VDD2 — Secondary side supply voltage |
| ピン 23 | GND2 — Secondary side ground |
| ピン 24 | VDD2 — Secondary side supply voltage |
主な用途
ADUM5412ARWZ の用途: 6 件s: Isolated SPI Interface, Isolated RS-485 Communication, Isolated CAN Bus Interface, Isolated Power Supply for Sensors, Motor Drive Isolation, Medical Equipment Isolation.
Isolated SPI Interface
The ADUM5412ARWZ provides four isolation channels and an integrated DC-DC converter, making it ideal for isolated SPI communication between a microcontroller and peripheral devices. With 150 Mbps data rate, it easily handles SPI clock and data lines. The integrated converter powers the isolated side, eliminating the need for a separate isolated supply. This simplifies design and reduces component count, making it suitable for industrial sensors and data acquisition systems.
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Isolated RS-485 Communication
The ADUM5412ARWZ can be used to isolate RS-485 transceivers, providing galvanic isolation for industrial networks. Its high CMTI of 75 kV/µs ensures reliable operation in noisy environments. The integrated DC-DC converter supplies power to the isolated side of the transceiver, simplifying the power architecture. With 150 Mbps data rate, it supports high-speed RS-485 communication, making it suitable for factory automation and building control systems.
おすすめ
Isolated CAN Bus Interface
The ADUM5412ARWZ is well-suited for isolating CAN bus transceivers in automotive and industrial applications. Its 150 Mbps data rate far exceeds CAN's 1 Mbps requirement, providing ample margin. The integrated DC-DC converter powers the isolated side, reducing external components. The high CMTI ensures robust operation in the presence of motor noise and other transients. This makes it ideal for electric vehicle battery management systems and industrial motor drives.
おすすめ
Isolated Power Supply for Sensors
The ADUM5412ARWZ integrates a DC-DC converter that can provide up to 500 mW of isolated power, making it ideal for powering isolated sensor circuits. This eliminates the need for a separate isolated power module, saving board space and cost. The device can be used to power isolated amplifiers, ADCs, or digital sensors while providing data isolation. Its wide supply range of 3.0V to 5.5V accommodates various system voltages, and the regulated output ensures stable sensor operation.
おすすめ
Motor Drive Isolation
In motor drive applications, the ADUM5412ARWZ provides isolation between the control side and the power stage. Its high CMTI of 75 kV/µs ensures reliable operation in the presence of high dv/dt transients from IGBT switching. The integrated DC-DC converter can power the gate driver circuits on the high-voltage side. With 150 Mbps data rate, it can handle high-speed PWM signals. This makes it suitable for industrial inverters, servo drives, and robotics.
おすすめ
Medical Equipment Isolation
The ADUM5412ARWZ is suitable for medical equipment requiring galvanic isolation for patient safety. Its 2.5 kVrms isolation rating meets basic isolation requirements for many medical applications. The integrated DC-DC converter simplifies isolated power delivery, reducing leakage currents compared to external converters. The high data rate supports high-resolution imaging and monitoring systems. The device's small footprint and low component count make it ideal for portable medical devices.
おすすめ
おすすめ製品の概要
エンジニアリング参考データ: ADUM5412ARWZ — 比較、設計ガイダンス、コンプライアンス情報。
選定ガイド
代替品との比較
| パラメータ | この製品 | ADUM5412BRSZ | ADUM5411ARWZ | ADUM5410ARWZ | ADUM5402ARWZ |
|---|---|---|---|---|---|
| Package | 24-SOIC-W (0.300") | 24-SSOP (0.209") | 24-SOIC-W (0.300") | 24-SOIC-W (0.300") | 24-SOIC-W (0.300") |
| Brand | Analog Devices | Analog Devices | Analog Devices | Analog Devices | Analog Devices |
| Number of Channels | 4 | 4 | 3 | 2 | 4 |
| Data Rate | 150 Mbps | 150 Mbps | 150 Mbps | 150 Mbps | 1 Mbps |
| Isolation Voltage | 2500 Vrms | 2500 Vrms | 2500 Vrms | 2500 Vrms | 2500 Vrms |
| Integrated DC-DC | Yes | Yes | Yes | Yes | Yes |
| Output Power | 500 mW | 500 mW | 500 mW | 500 mW | 500 mW |
| CMTI | 75 kV/µs | 75 kV/µs | 75 kV/µs | 75 kV/µs | 25 kV/µs |
主な差別化要因
- Integrated DC-DC converter （vs ISO7742DW)
- Higher data rate （vs ADUM5402ARWZ)
- Higher CMTI （vs ADUM5402ARWZ)
設計ノート
For the ADUM5412ARWZ, maintain proper creepage and clearance distances on the PCB to meet the 2.5 kVrms isolation rating. The SOIC-W package has a minimum creepage of 7.6 mm, so ensure the PCB layout provides at least this distance between primary and secondary side traces. Use a slot or cutout under the device to increase creepage if needed.
The integrated DC-DC converter requires external capacitors for stability. Place a 1 µF capacitor on VDD1 and VDD2, and a 10 µF capacitor on VISO. Use low-ESR ceramic capacitors placed close to the pins. The converter can deliver up to 500 mW; ensure the input supply can handle the load current.
At maximum output power (500 mW), the ADUM5412ARWZ may dissipate significant heat. The SOIC-W package has a thermal resistance of approximately 60°C/W (typical). Ensure adequate copper area on the PCB for heat dissipation, and consider airflow if operating at high ambient temperatures. Monitor junction temperature to stay within the -40°C to +125°C range.
コンプライアンス情報
RoHS compliant per Analog Devices product page. Not AEC-Q100 qualified.
