ADUM5404ARWZ-RL7 - Quad-Channel Digital Isolator with isoPower | Analog Devices
MPN: ADUM5404ARWZ-RL7 ✓ Hoạt độngADUM5404ARWZ-RL7 Tóm tắt
Digital isolators are components that transfer digital signals across an isolation barrier, protecting sensitive circuitry from high voltages, ground loops, and noise. They replace optocouplers in many applications, offering higher speed, better reliability, and integrated power conversion. The ADUM5404 belongs to the ADuM540x family, which combines signal isolation and isolated power in a single package, simplifying board design and reducing component count.
Key features include four bidirectional isolation channels, an integrated DC-to-DC converter with 500 mW output, 2500 Vrms isolation rating, 25 kV/µs CMTI, and 1 Mbps data rate. The device also features thermal shutdown protection and operates over the industrial temperature range of -40°C to +105°C. Its wide-body SOIC package ensures adequate creepage and clearance for high-voltage isolation.
Technically, the ADUM5404 uses Analog Devices' iCoupler technology, which employs chip-scale transformers for isolation, providing superior performance compared to optocouplers in terms of speed, power consumption, and reliability. The integrated isoPower converter uses a push-pull architecture to generate an isolated output, eliminating the need for a separate isolated power supply. This integration reduces board space and design complexity.
Typical applications include industrial fieldbus isolation, isolated SPI/UART interfaces, motor control, and power supply monitoring. The device is ideal for systems requiring both signal and power isolation, such as PLCs, motor drives, and medical equipment. Its 500 mW output can power small isolated circuits, such as sensors or transceivers.
When designing with the ADUM5404, ensure proper PCB layout with adequate isolation spacing and decoupling capacitors on both sides of the isolation barrier. The integrated DC-to-DC converter requires careful attention to load regulation and ripple, especially when powering sensitive analog circuits.
Bộ thay thế dễ dàng lắp đặt cho ADUM5404ARWZ-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 ADUM5404ARWZ-RL7 (cùng hình factor và footprint) — khác nhau ở Package, Input Supply Voltage.
ADUM5404CRWZ-RL
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
ADUM5404BRWZ-RL7
✅ Drop-In ⚠️ Thông số chưa được xác minh📋 Tham chiếu thay thế (không có trong danh mục)
ADUM5404ARWZ
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →ADUM5401ARWZ
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →ISO7340CQDWQ1
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
ADUM5404ARWZ-RL7 Thông số kỹ thuật
| Number of Channels | 4 |
| Isolation Voltage | 2500 Vrms |
| Tốc độ dữ liệu | 1 Mbps |
| Common-Mode Transient Immunity (CMTI) | 25 kV/µs |
| Integrated DC-to-DC Converter Output Power | 500 mW |
| Supply Voltage Range | 3 V to 5.5 V |
| Operating Supply Current | 19 mA (typical) |
| Hộp | 16-SOIC (0.295", 7.50mm Width) |
| Khoảng nhiệt độ hoạt động | -40°C to +105°C |
| Isolation Rating | 2500 Vrms |
| Trạng thái RoHS | Compliant |
| Kiểu lắp đặt | Surface Mount |
| Technology | iCoupler |
Cấu hình chân ADUM5404ARWZ-RL7
| Chân 1 | VDD1 — Primary side supply voltage |
| Chân 2 | GND1 — Primary side ground |
| Chân 3 | VIA — Input channel A |
| Chân 4 | VOA — Output channel A |
| Chân 5 | VIB — Input channel B |
| Chân 6 | VOB — Output channel B |
| Chân 7 | VIC — Input channel C |
| Chân 8 | VOC — Output channel C |
| Chân 9 | VID — Input channel D |
| Chân 10 | VOD — Output channel D |
| Chân 11 | GND2 — Secondary side ground |
| Chân 12 | VDD2 — Secondary side supply voltage |
| Chân 13 | VISO — Isolated output voltage from DC-to-DC converter |
| Chân 14 | GNDISO — Isolated ground for DC-to-DC converter |
| Chân 15 | NC — No connect |
| Chân 16 | NC — No connect |
Ứng dụng tiêu biểu
ADUM5404ARWZ-RL7 phù hợp cho 6 Áp dụngs: Industrial Fieldbus Isolation, Isolated SPI/UART Interface, Motor Control, Power Supply Monitoring, Medical Equipment Isolation, Isolated Sensor Interface.
Industrial Fieldbus Isolation
The ADUM5404ARWZ-RL7 provides isolated power and signal for fieldbus interfaces like RS-485, ensuring robust communication in noisy industrial environments. Its 2500 Vrms isolation and 25 kV/µs CMTI protect against ground loops and transients, while the integrated DC-to-DC converter powers the transceiver without an external supply. This simplifies design and reduces board space, making it ideal for PLCs and industrial controllers.
Được đề xuất
Isolated SPI/UART Interface
For isolated SPI or UART communication between microcontrollers and peripherals, the ADUM5404ARWZ-RL7 offers four channels, sufficient for SPI (SCLK, MOSI, MISO, CS) or UART (TX, RX, CTS, RTS). Its 1 Mbps data rate supports moderate-speed communication, and the integrated power eliminates the need for a separate isolated supply. This is ideal for isolated sensor interfaces and data acquisition systems.
Được đề xuất
Motor Control
In motor control systems, the ADUM5404ARWZ-RL7 isolates gate drive signals and feedback from the high-voltage power stage. Its 25 kV/µs CMTI ensures reliable operation in the presence of fast-switching transients, and the integrated DC-to-DC converter can power the gate driver or current sensors. The 500 mW output is sufficient for low-power gate drivers, reducing component count and improving reliability.
Được đề xuất
Power Supply Monitoring
The ADUM5404ARWZ-RL7 is used to isolate monitoring signals from high-voltage power supplies, such as voltage and current feedback. Its integrated power can supply the monitoring IC, eliminating the need for an isolated bias supply. The 2500 Vrms isolation protects low-voltage control circuitry from power supply transients, making it suitable for server power supplies and industrial converters.
Được đề xuất
Medical Equipment Isolation
For medical devices requiring patient isolation, the ADUM5404ARWZ-RL7 provides 2500 Vrms isolation, meeting safety standards. Its low power consumption and integrated DC-to-DC converter make it suitable for battery-powered devices. The device isolates control signals and power for sensors, ensuring patient safety and reliable operation in applications like patient monitors and diagnostic equipment.
Được đề xuất
Isolated Sensor Interface
The ADUM5404ARWZ-RL7 is ideal for isolating sensor signals in harsh environments, such as temperature or pressure sensors in industrial settings. Its four channels can carry sensor data and control signals, while the integrated power supplies the sensor or signal conditioning circuit. The 1 Mbps data rate is sufficient for most sensor applications, and the isolation protects the microcontroller from electrical noise.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho ADUM5404ARWZ-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 | ADUM5404CRWZ-RL | ADUM5404BRWZ-RL7 | ADUM5404ARWZ | ADUM5401ARWZ | ISO7340CQDWQ1 |
|---|---|---|---|---|---|---|
| Package | 16-SOIC (0.295", 7.50mm Width) | 16-SOIC (0.295", 7.50mm Width) | 16-SOIC (0.295", 7.50mm Width) | 16-SOIC (0.295", 7.50mm Width) | 16-SOIC (0.295", 7.50mm Width) | 16-SOIC (0.295", 7.50mm Width) |
| Brand | Analog Devices | Analog Devices | Analog Devices | Analog Devices | Analog Devices | Texas Instruments |
| Number of Channels | 4 | 4 | 4 | 4 | 2 | 4 |
| Isolation Voltage | 2500 Vrms | 2500 Vrms | 2500 Vrms | 2500 Vrms | 2500 Vrms | 3000 Vrms |
| Data Rate | 1 Mbps | 1 Mbps | 25 Mbps | 1 Mbps | 1 Mbps | 25 Mbps |
| Integrated DC-to-DC Converter | Yes (500 mW) | Yes (500 mW) | Yes (500 mW) | Yes (500 mW) | No | No |
| CMTI | 25 kV/µs | 25 kV/µs | 25 kV/µs | 25 kV/µs | 25 kV/µs | 100 kV/µs |
Bảo phân biệt quan trọng
- Integrated DC-to-DC converter (vsISO7340CQDWQ1)
- Lower operating supply current (vsADUM5404CRWZ-RL)
- Four channels with power (vsADUM5401ARWZ)
Ghi chú thiết kế
For the ADUM5404ARWZ-RL7, maintain proper isolation spacing on the PCB. Ensure a minimum creepage distance of 8 mm for 2500 Vrms isolation, and place a slot or barrier under the device to prevent surface leakage. Use 10 µF and 0.1 µF decoupling capacitors on both VDD1 and VDD2, placed as close as possible to the pins.
The integrated DC-to-DC converter provides up to 500 mW. When loading the isolated output, consider the efficiency and ripple. Use a 10 µF capacitor on VISO to stabilize the output. For higher loads, ensure the input supply can handle the increased current draw.
The ADUM5404ARWZ-RL7 dissipates power internally, especially when the DC-to-DC converter is loaded. At maximum load, the power dissipation can be significant. Ensure adequate copper area on the PCB for heat sinking, and consider the operating temperature range of -40°C to +105°C.
Thông tin tuân thủ
RoHS compliant per distributor data. AEC-Q100 not applicable for this industrial-grade device.