ADUM5411ARWZ - Quad-Channel Digital Isolator with DC-DC | Analog Devices
料号： ADUM5411ARWZ ✓ 量产中| 数量 | 单价 | 小计 |
|---|---|---|
| 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 |
ADUM5411ARWZ 概述
Digital isolators are components that provide galvanic isolation between two circuits while allowing digital signals to pass across the isolation barrier. They use capacitive or magnetic coupling to transfer data without a direct electrical connection, protecting sensitive electronics from high voltages, ground loops, and noise. The ADUM5411 belongs to the iCoupler® family, which uses chip-scale transformer technology for reliable isolation. This product type falls under the broader category of isolation components, which include optocouplers, digital isolators, and isolated DC-DC converters, essential for safety and signal integrity in industrial, medical, and communication systems.
Key features of the ADUM5411ARWZ include a 150 Mbps data rate, 75 kV/µs common-mode transient immunity (CMTI), and an integrated DC-DC converter that provides up to 500 mW of isolated output power. The device supports a wide supply range of 3.0V to 5.5V on the primary side and offers a regulated output voltage that can be set via external resistors. The isolation barrier provides 2.5 kVrms isolation per UL 1577, and the device is certified for IEC 60747-5-5 and CSA standards. The SOIC-W package ensures compatibility with standard PCB assembly processes.
Technically, the ADUM5411 uses Analog Devices' iCoupler technology, which employs micro-transformers to couple signals across the isolation barrier. This approach offers superior performance compared to optocouplers, including higher data rates, lower power consumption, and better reliability. The integrated DC-DC converter uses a push-pull topology with an internal oscillator, providing a regulated output that can be used to power isolated side circuitry. The device includes an enable pin for power management and a soft-start function to limit inrush current.
Typical applications include industrial fieldbus isolation, isolated SPI/UART interfaces, motor control, and isolated power supplies for sensor interfaces. The ADUM5411 is ideal for systems requiring both signal isolation and isolated power in a single package, reducing board space and component count. Its high CMTI makes it suitable for noisy environments such as motor drives and power converters.
When designing with the ADUM5411, ensure proper PCB layout with adequate creepage and clearance distances for the isolation rating. Place decoupling capacitors close to the VDD and VDDP pins, and follow the recommended layout in the datasheet to achieve optimal isolation performance.
直接替换替代料： ADUM5411ARWZ ——相同封装，引脚兼容。需要 PCB 改动的不同封装料号已排除。
本系列中的变体
可与以下型号直接替换的同系列型号： ADUM5411ARWZ （相同外形与封装尺寸） ——差异在于 Package, Number of Channels.
快速对比工具——选择替代料号进行并排对比：
该产品暂无直接替换替代料。
请求替代料ADUM5411ARWZ 最大额定值与电气特性
| Number of Channels | 4 |
| Channel Direction | 3/1 (input/output) |
| Isolation Rating | 2500 Vrms |
| 数据速率 | 150 Mbps |
| CMTI | 75 kV/µs |
| Supply Voltage (Primary) | 3.0 V to 5.5 V |
| Isolated Output Power | 500 mW |
| Output Voltage (Isolated) | 3.3 V or 5 V (selectable) |
| 封装 | SOIC-W (16-lead, 300 mil) |
| 工作温度 | -40°C to +125°C |
| RoHS 状态 | Compliant |
| Certifications | UL 1577, IEC 60747-5-5, CSA |
| 使能引脚 | Yes |
| 软启动 | Yes |
ADUM5411ARWZ 引脚配置
| 引脚 1 | VDD1 — Primary supply voltage |
| 引脚 2 | GND1 — Primary ground |
| 引脚 3 | VIA — Input channel A |
| 引脚 4 | VIB — Input channel B |
| 引脚 5 | VIC — Input channel C |
| 引脚 6 | VOD — Output channel D |
| 引脚 7 | GND1 — Primary ground |
| 引脚 8 | NC — No connect |
| 引脚 9 | VISO — Isolated output voltage |
| 引脚 10 | GNDISO — Isolated ground |
| 引脚 11 | VISO — Isolated output voltage |
| 引脚 12 | GNDISO — Isolated ground |
| 引脚 13 | VOA — Output channel A |
| 引脚 14 | VOB — Output channel B |
| 引脚 15 | VOC — Output channel C |
| 引脚 16 | VID — Input channel D |
典型应用
ADUM5411ARWZ 适用于 6 应用s: Industrial Fieldbus Isolation, Isolated SPI/UART Interface, Motor Control, Isolated Power Supply for Sensor Interfaces, Medical Equipment Isolation, Isolated Power for Gate Drivers.
Industrial Fieldbus Isolation
The ADUM5411ARWZ provides isolated power and data for fieldbus interfaces such as RS-485, CAN, and PROFIBUS. Its integrated DC-DC converter eliminates the need for a separate isolated supply, simplifying design. With a 150 Mbps data rate and 75 kV/µs CMTI, it ensures reliable communication in noisy industrial environments. The 2.5 kVrms isolation protects against ground loops and voltage transients, making it ideal for factory automation and process control systems.
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Isolated SPI/UART Interface
The ADUM5411ARWZ is well-suited for isolating SPI or UART communication between microcontrollers and peripheral devices. Its high data rate of 150 Mbps supports fast SPI clocks, while the integrated DC-DC converter powers the isolated side, reducing component count. The 3/1 channel direction ratio provides three forward channels and one reverse channel, ideal for SPI with a single chip-select line. This makes it perfect for isolated sensor interfaces and data acquisition systems.
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Motor Control
In motor control applications, the ADUM5411ARWZ isolates the control circuitry from the high-voltage power stage. Its high CMTI of 75 kV/µs ensures reliable operation in the presence of fast switching transients from IGBTs or MOSFETs. The integrated DC-DC converter provides a clean isolated supply for gate drivers and current sensors. The 2.5 kVrms isolation protects the low-voltage controller from damage, making it ideal for variable frequency drives and servo drives.
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Isolated Power Supply for Sensor Interfaces
The ADUM5411ARWZ can provide isolated power and data for sensor interfaces in industrial and medical applications. Its integrated DC-DC converter delivers up to 500 mW, sufficient for powering sensors, amplifiers, and ADCs on the isolated side. The 3/1 channel configuration allows for bidirectional communication, enabling sensor configuration and data readout. The wide operating temperature range of -40°C to +125°C ensures reliable operation in harsh environments.
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Medical Equipment Isolation
The ADUM5411ARWZ is suitable for medical equipment requiring galvanic isolation for patient safety. Its 2.5 kVrms isolation rating meets the requirements for many medical applications, and the integrated DC-DC converter simplifies the design of isolated power supplies. The high data rate supports communication with sensors and monitors, while the low power consumption helps meet energy efficiency standards. The device's small SOIC-W package is ideal for space-constrained medical devices.
推荐
Isolated Power for Gate Drivers
The ADUM5411ARWZ can be used to provide isolated power and signal isolation for gate drivers in power converters. Its integrated DC-DC converter generates a floating supply for the high-side gate driver, eliminating the need for a bootstrap circuit. The high CMTI ensures stable operation during fast switching events. The 3/1 channel configuration allows for PWM signals and fault feedback, making it ideal for half-bridge and full-bridge topologies.
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推荐产品汇总
工程参考数据： ADUM5411ARWZ ——对比、设计指导和合规信息。
选型指南
与替代料对比
| 参数 | 本产品 | ADUM5411BRSZ | ADUM5410BRSZ | ADUM5412BRSZ | ADUM6411BRSZ | ISO7742FDBQR |
|---|---|---|---|---|---|---|
| Package | SOIC-W (16-lead) | 24-SSOP | 24-SSOP | 24-SSOP | 24-SSOP | SOIC-16 |
| Brand | Analog Devices | Analog Devices | Analog Devices | Analog Devices | Analog Devices | Texas Instruments |
| Isolation Rating | 2500 Vrms | 2500 Vrms | 2500 Vrms | 2500 Vrms | 5000 Vrms | 5000 Vrms |
| Data Rate | 150 Mbps | 150 Mbps | 150 Mbps | 150 Mbps | 150 Mbps | 100 Mbps |
| Integrated DC-DC | Yes | Yes | Yes | Yes | Yes | No |
| Channel Direction | 3/1 | 3/1 | 2/2 | 1/3 | 3/1 | 4/0 |
| CMTI | 75 kV/µs | 75 kV/µs | 75 kV/µs | 75 kV/µs | 75 kV/µs | 100 kV/µs |
| Supply Voltage | 3.0V to 5.5V | 3.0V to 5.5V | 3.0V to 5.5V | 3.0V to 5.5V | 3.0V to 5.5V | 2.25V to 5.5V |
关键差异点
- Integrated DC-DC converter （对比 ISO7742FDBQR)
- Higher data rate （对比 ISO7742FDBQR)
- Smaller package （对比 ADUM5411BRSZ)
设计说明
For optimal isolation performance, maintain at least 8 mm creepage and clearance distance between the primary and secondary sides on the PCB. Place a 0.1 µF decoupling capacitor close to VDD1 and VISO pins. Use a solid ground plane under the device, but ensure the isolation barrier is not bridged by any copper traces.
The integrated DC-DC converter can deliver up to 500 mW. Ensure the input supply can provide sufficient current, considering the efficiency of the converter (typically around 30-40%). For higher power requirements, consider using an external isolated DC-DC converter instead.
The ADUM5411ARWZ dissipates power internally due to the DC-DC converter. At maximum load, the junction temperature rise can be significant. Ensure adequate thermal relief by providing copper pours on the PCB and consider the ambient temperature when calculating the thermal budget.
合规信息
RoHS compliant per Analog Devices product page. Not AEC-Q100 qualified. Additional certifications: UL 1577, IEC 60747-5-5, CSA.
