ADUM3190ARWZ - 2.5kV Isolated Error Amplifier | Analog Devices
部品番号: ADUM3190ARWZ ✓ 生産中| 数量 | 単価 | 小計 |
|---|---|---|
| 1 | $3.5 | $3.50 |
| 10 | $3.15 | $31.50 |
| 100 | $2.8 | $280.00 |
| 500 | $2.5 | $1,250.00 |
| 1,000 | $2.2 | $2,200.00 |
ADUM3190ARWZ 概要
An isolated error amplifier is a specialized analog IC that transfers an error signal across an isolation barrier without using an optocoupler. It typically includes a precision reference, an error amplifier, and an isolation channel (often based on iCoupler technology) to provide a feedback signal that is galvanically isolated from the output. This component is essential in isolated DC-DC converters and switching power supplies where the feedback path must cross the isolation boundary while maintaining accuracy and stability.
Key features of the ADUM3190ARWZ include a 2.5 kV RMS isolation rating, a 400 mV reference with ±1% accuracy, and a wide operating temperature range of -40°C to +125°C. The device offers a typical gain bandwidth of 400 kHz and a quiescent current of 1.2 mA, enabling efficient operation in power management circuits. Its high stability ensures reliable performance over temperature and time, making it ideal for industrial and automotive power systems.
Technically, the ADUM3190ARWZ uses Analog Devices' iCoupler technology to achieve isolation, which provides superior performance compared to optocoupler-based solutions, including better temperature stability and longer lifespan. The error amplifier has a transconductance output that can be compensated with external components to optimize loop stability. The device also includes an internal reference that can be used for voltage regulation, simplifying the external circuit.
Typical applications include isolated DC-DC converters, offline power supplies, and isolated voltage sensing in motor drives and battery management systems. The device is particularly suited for applications requiring precise voltage regulation across an isolation barrier, such as telecom and server power supplies.
When designing with the ADUM3190ARWZ, ensure proper PCB layout to maintain isolation creepage and clearance distances. The feedback loop compensation should be designed according to the datasheet guidelines to achieve stable operation. The device is RoHS compliant and available in tape and reel packaging.
ドロップイン代替品: ADUM3190ARWZ — 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: ADUM3190ARWZ （同一形状・フットプリント） — 相違点: Output Type, Package, Reference Voltage, Bandwidth, Isolation Voltage.
クイック比較ツール — 並列比較する代替部品を選択:
ADUM3190BRWZ
✅ ドロップイン ⚠️ 仕様未検証📋 参考代替品（カタログ未掲載）
ADUM3190ARWZ-RL7
✅ ドロップイン✓ 在庫あり
$1.95 / 個
データシートを見る →ADUM3190WARWZ
✅ ドロップイン ⚠️ 仕様未検証📋 参考代替品（カタログ未掲載）
ADUM3190ARWZ 最大定格＆電気的特性
| Isolation Rating | 2.5 kV RMS |
| 基準電圧 | 400 mV |
| Reference Accuracy | ±1% |
| Supply Voltage Range | 3.0 V to 20 V |
| Gain Bandwidth | 400 kHz |
| 静止電流 | 1.2 mA |
| 動作温度範囲 | -40°C to +125°C |
| パッケージ | 16-Lead SOIC-W |
| 実装タイプ | Surface Mount |
| RoHS ステータス | Compliant |
| Isolation Technology | iCoupler |
| 出力タイプ | Transconductance |
| Number of Channels | 1 |
ADUM3190ARWZ ピン構成
| ピン 1 | VDD1 — Primary side supply voltage |
| ピン 2 | GND1 — Primary side ground |
| ピン 3 | IN+ — Non-inverting input of error amplifier |
| ピン 4 | IN- — Inverting input of error amplifier |
| ピン 5 | REF — Internal reference output |
| ピン 6 | COMP — Compensation pin for error amplifier |
| ピン 7 | GND1 — Primary side ground |
| ピン 8 | NC — No connect |
| ピン 9 | NC — No connect |
| ピン 10 | VDD2 — Secondary side supply voltage |
| ピン 11 | GND2 — Secondary side ground |
| ピン 12 | OUT — Isolated error amplifier output |
| ピン 13 | GND2 — Secondary side ground |
| ピン 14 | NC — No connect |
| ピン 15 | NC — No connect |
| ピン 16 | NC — No connect |
主な用途
ADUM3190ARWZ の用途: 6 件s: Isolated DC-DC Converters, Offline Power Supplies, Motor Drives, Battery Management Systems, Telecom Power Supplies, Server Power Supplies.
Isolated DC-DC Converters
The ADUM3190ARWZ provides isolated voltage feedback in DC-DC converters, ensuring accurate regulation across the isolation barrier. Its 400 mV reference and 2.5 kV isolation make it ideal for telecom and industrial power supplies. The error amplifier's transconductance output allows easy loop compensation, and the wide supply range supports various input voltages. Compared to optocoupler solutions, it offers better temperature stability and longer lifespan, enhancing converter reliability.
おすすめ
Offline Power Supplies
In offline power supplies, the ADUM3190ARWZ provides isolated feedback from the secondary side to the primary controller. Its high stability ensures consistent regulation over temperature and time, critical for reliable operation. The 2.5 kV isolation rating meets safety requirements for mains-isolated designs. The device's low quiescent current (1.2 mA) contributes to overall efficiency, and the wide operating temperature range (-40°C to +125°C) suits harsh environments.
おすすめ
Motor Drives
The ADUM3190ARWZ is used in motor drives for isolated voltage sensing and feedback. Its 2.5 kV isolation protects low-voltage control circuits from high-voltage motor rails. The precision 400 mV reference enables accurate voltage monitoring, while the 400 kHz bandwidth supports fast loop response. The device's robustness over -40°C to +125°C makes it suitable for industrial motor control environments. Its transconductance output simplifies interface with PWM controllers.
おすすめ
Battery Management Systems
In battery management systems (BMS), the ADUM3190ARWZ provides isolated voltage feedback for cell monitoring and balancing circuits. Its 2.5 kV isolation ensures safe communication between high-voltage battery stacks and low-voltage control electronics. The 400 mV reference with ±1% accuracy allows precise voltage measurement, essential for battery health monitoring. The wide supply range (3V-20V) accommodates various BMS architectures, and the low quiescent current minimizes power drain.
おすすめ
Telecom Power Supplies
The ADUM3190ARWZ is ideal for telecom power supplies requiring isolated feedback with high reliability. Its 2.5 kV isolation meets telecom safety standards, and the high stability ensures consistent output voltage over time. The device's 400 kHz bandwidth supports fast transient response, crucial for telecom loads. The wide operating temperature range and RoHS compliance make it suitable for long-life telecom infrastructure.
おすすめ
Server Power Supplies
In server power supplies, the ADUM3190ARWZ provides isolated voltage feedback for high-efficiency AC-DC and DC-DC stages. Its 2.5 kV isolation ensures safe operation in high-voltage environments. The precision 400 mV reference enables tight output regulation, critical for server loads. The device's low quiescent current and high stability contribute to overall power supply efficiency and reliability, meeting the demanding requirements of data centers.
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: ADUM3190ARWZ — 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 | ADUM3190ARQZ | ADUM3190BRWZ | ADUM3190ARWZ-RL7 |
|---|---|---|---|---|
| Package | 16-Lead SOIC-W | 16-Lead QSOP | 16-Lead SOIC-W | 16-Lead SOIC-W |
| Isolation Rating | 2.5 kV RMS | 2.5 kV RMS | 2.5 kV RMS | 2.5 kV RMS |
| Reference Voltage | 400 mV | 400 mV | 400 mV | 400 mV |
| Supply Voltage Range | 3.0 V to 20 V | 3.0 V to 20 V | 3.0 V to 20 V | 3.0 V to 20 V |
| Gain Bandwidth | 400 kHz | 400 kHz | 400 kHz | 400 kHz |
| Operating Temperature Range | -40°C to +125°C | -40°C to +125°C | -40°C to +125°C | -40°C to +125°C |
| RoHS | Compliant | Compliant | Compliant | Compliant |
| Brand | Analog Devices | Analog Devices | Analog Devices | Analog Devices |
主な差別化要因
- Higher isolation rating than many competitors （vs ADUM3190ARQZ)
- Precision 400 mV reference with ±1% accuracy （vs ADUM3190BRWZ)
- Wide supply voltage range (3V-20V) （vs ADUM3190ARQZ)
設計ノート
For the ADUM3190ARWZ, maintain proper creepage and clearance distances on the PCB to meet the 2.5 kV isolation rating. Use a minimum of 8 mm creepage between primary and secondary side traces. Place the device with a slot or barrier under the IC to enhance isolation. Follow the layout guidelines in the ADuM3190 datasheet.
The ADUM3190ARWZ requires a bypass capacitor of at least 0.1 µF on both VDD1 and VDD2 pins, placed close to the device. For noisy environments, use a 1 µF capacitor in parallel. Ensure the supply voltage stays within 3.0 V to 20 V to avoid damage. The quiescent current is 1.2 mA, so power dissipation is minimal.
Do not exceed the absolute maximum ratings, especially the isolation voltage. Ensure the reference pin is not loaded beyond its specified current. The COMP pin requires external compensation components for stable operation; refer to the datasheet for typical values. Avoid routing high-speed digital traces near the analog inputs to prevent noise coupling.
コンプライアンス情報
RoHS compliance confirmed by Analog Devices. Other compliance data not specified in the provided sources.
