ADUM3190ARWZ - 2.5kV Isolated Error Amplifier | Analog Devices
MPN: ADUM3190ARWZ ✓ Hoạt độngADUM3190ARWZ Tóm tắt
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.
Bộ thay thế dễ dàng lắp đặt cho ADUM3190ARWZ — cùng gói, chân-to-chân tương thích. Các bộ phận yêu cầu hàn PCB bị loại trừ.
Các biến thể trong loạt này
Các mẫu cùng loạt có thể lắp đặt dễ dàng tương thích với ADUM3190ARWZ (cùng hình factor và footprint) — khác nhau ở Output Type, Package, Reference Voltage, Bandwidth, Isolation Voltage.
ADUM3190BRWZ
✅ Drop-In ⚠️ Thông số chưa được xác minh📋 Tham chiếu thay thế (không có trong danh mục)
ADUM3190ARWZ-RL7
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →ADUM3190WARWZ
✅ Drop-In ⚠️ Thông số chưa được xác minh📋 Tham chiếu thay thế (không có trong danh mục)
ADUM3190ARWZ Tỷ lệ tối đa & tính chất điện
| Isolation Rating | 2.5 kV RMS |
| Điện áp tham chiếu | 400 mV |
| Reference Accuracy | ±1% |
| Supply Voltage Range | 3.0 V to 20 V |
| Gain Bandwidth | 400 kHz |
| Điện áp yên tĩnh | 1.2 mA |
| Khoảng nhiệt độ hoạt động | -40°C to +125°C |
| Hộp | 16-Lead SOIC-W |
| Kiểu lắp đặt | Surface Mount |
| Trạng thái RoHS | Compliant |
| Isolation Technology | iCoupler |
| Kiểu đầu ra | Transconductance |
| Number of Channels | 1 |
Cấu hình chân ADUM3190ARWZ
| Chân 1 | VDD1 — Primary side supply voltage |
| Chân 2 | GND1 — Primary side ground |
| Chân 3 | IN+ — Non-inverting input of error amplifier |
| Chân 4 | IN- — Inverting input of error amplifier |
| Chân 5 | REF — Internal reference output |
| Chân 6 | COMP — Compensation pin for error amplifier |
| Chân 7 | GND1 — Primary side ground |
| Chân 8 | NC — No connect |
| Chân 9 | NC — No connect |
| Chân 10 | VDD2 — Secondary side supply voltage |
| Chân 11 | GND2 — Secondary side ground |
| Chân 12 | OUT — Isolated error amplifier output |
| Chân 13 | GND2 — Secondary side ground |
| Chân 14 | NC — No connect |
| Chân 15 | NC — No connect |
| Chân 16 | NC — No connect |
Ứng dụng tiêu biểu
ADUM3190ARWZ phù hợp cho 6 Áp dụngs: 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.
Được đề xuất
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.
Được đề xuất
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.
Được đề xuất
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.
Được đề xuất
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.
Được đề xuất
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.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho ADUM3190ARWZ — so sánh, hướng dẫn thiết kế và thông tin tuân thủ.
Hướng dẫn chọn lựa
So sánh với các sản phẩm thay thế
| Tham số | Sản phẩm này | 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 |
Bảo phân biệt quan trọng
- Higher isolation rating than many competitors (vsADUM3190ARQZ)
- Precision 400 mV reference with ±1% accuracy (vsADUM3190BRWZ)
- Wide supply voltage range (3V-20V) (vsADUM3190ARQZ)
Ghi chú thiết kế
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.
Thông tin tuân thủ
RoHS compliance confirmed by Analog Devices. Other compliance data not specified in the provided sources.
