ADUM3190ARWZ-RL7 - 2.5kV Isolated Error Amplifier | Analog Devices
MPN: ADUM3190ARWZ-RL7 ✓ Hoạt độngADUM3190ARWZ-RL7 Tóm tắt
An isolated error amplifier is a specialized amplifier that transfers an error signal across an isolation barrier without a direct electrical connection. It is a key component in isolated power supplies, where it compares the output voltage to a reference and sends the error signal to the primary-side controller. This enables regulation while maintaining galvanic isolation for safety and noise immunity.
Key features include a 1.225 V reference voltage, compatibility with Type II or Type III compensation networks, and low power operation of less than 7 mA total. The device supports a wide supply range of 3 V to 20 V on both VDD1 and VDD2, and provides 400 kHz bandwidth. It is available in a 16-lead SOIC-W package, offering a compact solution for isolated feedback.
The ADUM3190 uses iCoupler technology, which integrates micro-transformers to achieve isolation, eliminating the need for optocouplers and providing improved reliability and performance. The device is compatible with DOSA (Distributed-power Open Standards Alliance) standards, ensuring interoperability. It also meets safety approvals including UL 1577 and IEC/EN/CSA 62368-1.
Typical applications include shunt regulators, linear power supplies, inverters, and uninterruptible power supplies (UPS). The device is ideal for isolated feedback in AC-DC and DC-DC converters, where precise regulation and isolation are critical. Its wide supply range and low power consumption make it suitable for both industrial and consumer power systems.
When designing with the ADUM3190, ensure proper PCB layout to maintain isolation creepage and clearance distances. The device requires bypass capacitors on both supply pins to ensure stable operation. The reference voltage accuracy is critical for output regulation, so use precision resistors in the feedback network.
Bộ thay thế dễ dàng lắp đặt cho ADUM3190ARWZ-RL7 — 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-RL7 (cùng hình factor và footprint) — khác nhau ở Output Type, Package, Reference Voltage, Bandwidth, Isolation Voltage.
ADUM3190ARWZ
✅ Drop-In ⚠️ Thông số chưa được xác minhLiên hệ để biết giá
Xem tài liệu →ADUM3190BRWZ-RL7
✅ Drop-In ⚠️ Thông số chưa được xác minh📋 Tham chiếu thay thế (không có trong danh mục)
ADUM3190ARWZ-RL7 Tỷ lệ tối đa & tính chất điện
| Isolation Voltage | 2.5 kV rms |
| Điện áp tham chiếu | 1.225 V |
| Supply Voltage Range (VDD1) | 3 V to 20 V |
| Supply Voltage Range (VDD2) | 3 V to 20 V |
| Bandwidth | 400 kHz |
| Total Supply Current | <7 mA |
| Hộp | 16-Lead SOIC-W |
| Khoảng nhiệt độ hoạt động | -40°C to +125°C |
| Compensation Network Compatibility | Type II or Type III |
| Safety Approvals | UL 1577, IEC/EN/CSA 62368-1 |
| Technology | iCoupler |
| Kiểu lắp đặt | Surface Mount |
| Trạng thái RoHS | Compliant |
| Kiểu đầu ra | Error Amplifier |
Cấu hình chân ADUM3190ARWZ-RL7
| Chân 1 | VDD1 — Primary side supply voltage |
| Chân 2 | GND1 — Primary side ground |
| Chân 3 | IN+ — Non-inverting input |
| Chân 4 | IN- — Inverting input |
| Chân 5 | COMP — Compensation node |
| Chân 6 | REF — Reference voltage output |
| Chân 7 | GND1 — Primary side ground |
| Chân 8 | VDD1 — Primary side supply voltage |
| Chân 9 | VDD2 — Secondary side supply voltage |
| Chân 10 | GND2 — Secondary side ground |
| Chân 11 | OUT — Error amplifier output |
| Chân 12 | GND2 — Secondary side ground |
| Chân 13 | NC — No connect |
| Chân 14 | NC — No connect |
| Chân 15 | NC — No connect |
| Chân 16 | NC — No connect |
Ứng dụng tiêu biểu
ADUM3190ARWZ-RL7 phù hợp cho 6 Áp dụngs: Isolated Switch Mode Power Supplies, Linear Power Supplies, Inverters, Uninterruptible Power Supplies (UPS), Isolated DC-DC Converters, Battery Chargers.
Isolated Switch Mode Power Supplies
The ADUM3190ARWZ-RL7 provides isolated feedback in SMPS designs, ensuring accurate output regulation across the isolation barrier. Its 400 kHz bandwidth supports fast transient response, while the 1.225 V reference enables precise voltage control. The wide supply range (3 V to 20 V) allows direct connection to various secondary-side rails. Compared to optocouplers, it offers higher reliability and no LED degradation, making it ideal for high-performance AC-DC converters.
Được đề xuất
Linear Power Supplies
In linear power supplies, the ADUM3190ARWZ-RL7 provides isolated error amplification for series pass transistor control. Its low power consumption (<7 mA) minimizes overhead, and the 1.225 V reference ensures stable output. The device's compatibility with Type II/III compensation allows flexible loop design. The SOIC-W package with 2.5 kV isolation meets safety requirements for industrial linear supplies, offering a compact alternative to optocoupler-based solutions.
Được đề xuất
Inverters
The ADUM3190ARWZ-RL7 is used in inverter systems for isolated feedback of DC bus voltage. Its 2.5 kV isolation protects low-voltage control circuitry from high-voltage transients. The 400 kHz bandwidth enables fast loop response, improving inverter stability. The device's wide supply range (3 V to 20 V) simplifies powering from auxiliary rails. Its low power consumption reduces thermal stress in compact inverter designs, making it suitable for motor drives and solar inverters.
Được đề xuất
Uninterruptible Power Supplies (UPS)
In UPS systems, the ADUM3190ARWZ-RL7 provides isolated feedback for battery charging and inverter stages. Its high isolation voltage (2.5 kV rms) ensures safety in high-voltage environments. The device's low power consumption (<7 mA) is critical for battery-powered operation. The 1.225 V reference and 400 kHz bandwidth enable precise regulation, improving UPS efficiency and reliability. The SOIC-W package is suitable for space-constrained UPS designs.
Được đề xuất
Isolated DC-DC Converters
The ADUM3190ARWZ-RL7 is ideal for isolated DC-DC converters, providing feedback from the secondary side to the primary controller. Its 400 kHz bandwidth supports high switching frequencies, while the 1.225 V reference ensures accurate output regulation. The wide supply range (3 V to 20 V) allows operation from various output voltages. The device's low power consumption and small SOIC-W package make it suitable for board-mounted converters in telecom and industrial applications.
Được đề xuất
Battery Chargers
In battery charger designs, the ADUM3190ARWZ-RL7 provides isolated feedback for voltage and current regulation. Its 1.225 V reference and 400 kHz bandwidth enable precise control of charging profiles. The device's low power consumption (<7 mA) is beneficial for energy-efficient chargers. The 2.5 kV isolation ensures safety between the AC input and battery side. The SOIC-W package is suitable for compact charger designs, offering a reliable alternative to optocouplers.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho ADUM3190ARWZ-RL7 — 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-RL7 | ADUM3190WTRQZ-RL7 | ADUM3190BRQZ-RL7 |
|---|---|---|---|---|
| Package | 16-Lead SOIC-W | 16-Lead QSOP | 16-Lead QSOP | 16-Lead QSOP |
| Brand | Analog Devices | Analog Devices | Analog Devices | Analog Devices |
| Isolation Voltage | 2.5 kV rms | 2.5 kV rms | 2.5 kV rms | 2.5 kV rms |
| Reference Voltage | 1.225 V | 1.225 V | 1.225 V | 1.225 V |
| Supply Voltage Range | 3 V to 20 V | 3 V to 20 V | 3 V to 20 V | 3 V to 20 V |
| Bandwidth | 400 kHz | 400 kHz | 400 kHz | 400 kHz |
| Total Supply Current | <7 mA | <7 mA | <7 mA | <7 mA |
| Automotive Grade | No | No | Yes | No |
Bảo phân biệt quan trọng
- Higher isolation voltage than many competitors (vsOptocoupler-based error amplifiers)
- Wide supply voltage range (vsADUM3190ARQZ-RL7)
- Low power consumption (vsOptocoupler solutions)
Ghi chú thiết kế
For 2.5 kV isolation, ensure PCB creepage and clearance distances meet UL 1577 requirements. Maintain at least 8 mm creepage between primary and secondary sides. Use a slot in the PCB under the isolator to enhance isolation performance.
Bypass VDD1 and VDD2 with 0.1 uF ceramic capacitors placed close to the pins. For noisy environments, add a 10 uF electrolytic capacitor in parallel. Ensure the supply voltage stays within 3 V to 20 V to avoid damage.
Do not exceed the absolute maximum ratings. The reference voltage accuracy is critical for output regulation; use 1% or better resistors in the feedback network. Ensure the compensation network is properly designed for stability, as incorrect compensation can cause oscillation.
Thông tin tuân thủ
RoHS compliant per Analog Devices product page. AEC-Q100 not applicable for standard grade; automotive variant available.
