ADUM5403ARWZ-RL7 - Quad-Channel Digital Isolator with isoPower | Analog Devices
MPN: ADUM5403ARWZ-RL7 ✓ فعالADUM5403ARWZ-RL7 نمای کلی
Digital isolators are components that provide galvanic isolation between two circuits while allowing digital signals to pass across the isolation barrier. They are essential in applications where ground potential differences, noise, or safety requirements demand separation between the input and output sides. The ADUM5403 belongs to the family of isolated data communication ICs, which includes digital isolators, isolated transceivers, and isolated power converters. By integrating the DC-to-DC converter, the ADUM5403 eliminates the need for a separate isolated power supply, simplifying design and reducing board space.
Key features of the ADUM5403ARWZ-RL7 include its integrated isoPower DC-to-DC converter, which provides up to 500 mW of regulated output power, and its four independent isolation channels. The device supports both 3.3 V and 5 V logic levels, making it versatile for various system interfaces. Its high common-mode transient immunity of >25 kV/µs ensures reliable operation in noisy industrial environments. The 16-lead SOIC package with 7.6 mm creepage meets safety requirements for reinforced insulation in many applications.
Technically, the ADUM5403 uses Analog Devices' iCoupler technology, which employs chip-scale transformers to transmit data and power across the isolation barrier. This approach offers advantages over optocouplers, including higher data rates, lower power consumption, and better reliability. The integrated DC-to-DC converter uses a push-pull topology to generate isolated power, with regulation achieved through a feedback path across the barrier. The device includes under-voltage lockout (UVLO) and thermal shutdown protection to ensure safe operation.
Typical applications for the ADUM5403ARWZ-RL7 include industrial field bus isolation, motor control interfaces, isolated SPI/UART communication, and power supply control in isolated converters. Its integrated power makes it ideal for isolated sensor interfaces and data acquisition systems where a separate isolated supply would be impractical. The device is also suitable for medical equipment requiring patient isolation, as well as for automotive and aerospace systems where reliability is critical.
When designing with the ADUM5403, it is important to ensure adequate decoupling on both the input and output power pins, as the integrated converter can generate switching noise. The datasheet recommends specific capacitor values and layout guidelines to achieve optimal performance. Additionally, the creepage distance of 7.6 mm should be considered for applications requiring specific isolation ratings.
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گونه‌ها در این سری
مدل‌های هم‌سری که جایگزین مستقیم هستند برای ADUM5403ARWZ-RL7 (همان فرم‌فاکتور و فوت‌پرینت) — متفاوت در Input Supply Voltage, Data Rate, Package, Integrated DC-to-DC Converter.
ADUM5403ARWZ
✅ جایگزین مستقیمبرای قیمت تماس بگیرید
مشاهده دیتاشیت ←ADUM5403CRWZ
✅ جایگزین مستقیم📋 جایگزین مرجع (خارج از کاتالوگ)
ADUM5403WCRWZ
✅ جایگزین مستقیم📋 جایگزین مرجع (خارج از کاتالوگ)
ADUM5401ARWZ
✅ جایگزین مستقیمبرای قیمت تماس بگیرید
مشاهده دیتاشیت ←ADUM5402ARWZ
✅ جایگزین مستقیمبرای قیمت تماس بگیرید
مشاهده دیتاشیت ←ISO7742DW
✅ جایگزین مستقیم ⚠️ مشخصات تأییدنشده📋 جایگزین مرجع (خارج از کاتالوگ)
ADUM5403ARWZ-RL7 مشخصات
| Number of Channels | 4 |
| Isolation Voltage | 2500 Vrms |
| نرخ داده | 25 Mbps (NRZ) |
| Common-Mode Transient Immunity | >25 kV/µs |
| Integrated DC-to-DC Converter | Yes (isoPower) |
| Output Power | 500 mW |
| Output Voltage (VISO) | 3.3 V or 5.0 V |
| Input Supply Voltage | 3.0 V to 5.5 V |
| بسته‌بندی | 16-SOIC (0.295", 7.50mm Width) |
| Creepage Distance | 7.6 mm |
| محدوده دمای کاری | -40°C to +105°C |
| وضعیت RoHS | Compliant |
| نوع نصب | Surface Mount |
پیکربندی پین ADUM5403ARWZ-RL7
| پین 1 | VDD1 — Input supply voltage (3.0V to 5.5V) |
| پین 2 | GND1 — Input ground |
| پین 3 | VIA — Input channel A |
| پین 4 | VIB — Input channel B |
| پین 5 | VIC — Input channel C |
| پین 6 | VID — Input channel D |
| پین 7 | VE1 — Enable input 1 |
| پین 8 | VE2 — Enable input 2 |
| پین 9 | GNDISO — Isolated ground |
| پین 10 | VISO — Isolated output voltage (3.3V or 5.0V) |
| پین 11 | VOA — Output channel A |
| پین 12 | VOB — Output channel B |
| پین 13 | VOC — Output channel C |
| پین 14 | VOD — Output channel D |
| پین 15 | GND1 — Input ground (second pin) |
| پین 16 | VDD1 — Input supply voltage (second pin) |
کاربردهای معمول
ADUM5403ARWZ-RL7 مناسب است برای 6 کاربردs: Industrial Fieldbus Isolation, Isolated SPI/UART Communication, Motor Control and Drive Isolation, Isolated Power Supply Control, Medical Equipment Patient Isolation, Isolated Sensor Interface.
Industrial Fieldbus Isolation
The ADUM5403ARWZ-RL7 provides galvanic isolation for industrial fieldbus interfaces such as RS-485, CAN, and Profibus. Its integrated isoPower eliminates the need for a separate isolated DC-DC converter, simplifying the BOM and reducing board space. With a data rate of 25 Mbps and CMTI of >25 kV/µs, it ensures reliable communication in noisy industrial environments. The 2.5 kVrms isolation protects against ground loops and voltage transients, while the 500 mW output power can supply the transceiver and other circuitry on the isolated side. This makes it ideal for PLCs, motor drives, and factory automation systems where robust isolation is critical.
پیشنهادی
Isolated SPI/UART Communication
The ADUM5403ARWZ-RL7 is well-suited for isolating SPI or UART interfaces between microcontrollers and peripheral devices. Its four channels can be configured as 2 forward and 2 reverse, supporting full-duplex communication. The integrated DC-DC converter provides isolated power to the peripheral, eliminating the need for an external isolated supply. With 25 Mbps data rate, it easily handles high-speed SPI clocks. The device's low propagation delay and high CMTI ensure data integrity in electrically noisy environments. This application is common in data acquisition systems, isolated sensor interfaces, and medical devices where patient isolation is required.
پیشنهادی
Motor Control and Drive Isolation
In motor control applications, the ADUM5403ARWZ-RL7 isolates the control circuitry from the high-voltage power stage. Its integrated isoPower provides a clean, isolated supply for gate drivers and current sensing circuits. The high CMTI of >25 kV/µs ensures that fast switching transients from the inverter do not corrupt the control signals. The 2.5 kVrms isolation rating meets safety requirements for industrial drives. The device's 500 mW output power is sufficient for gate driver ICs and auxiliary circuits. This simplifies the design of variable frequency drives, servo drives, and robotics, reducing component count and improving reliability.
پیشنهادی
Isolated Power Supply Control
The ADUM5403ARWZ-RL7 can be used to isolate the feedback and control signals in switch-mode power supplies. Its integrated isoPower can provide the bias supply for the secondary-side controller, eliminating the need for a separate auxiliary winding. The four channels allow for both forward and reverse communication, enabling synchronous rectification and voltage/current feedback. The high data rate supports fast control loops, while the isolation ensures safety between primary and secondary sides. This application is common in AC-DC adapters, isolated DC-DC converters, and battery chargers. The device's 500 mW output power is adequate for most secondary-side control ICs.
پیشنهادی
Medical Equipment Patient Isolation
The ADUM5403ARWZ-RL7 is ideal for medical devices requiring patient isolation, such as ECG monitors, patient monitors, and infusion pumps. Its 2.5 kVrms isolation rating meets IEC 60601-1 requirements for basic isolation. The integrated isoPower provides isolated power to the patient-side circuitry, reducing leakage current and improving safety. The device's low power consumption and small footprint make it suitable for portable medical devices. The high CMTI ensures reliable operation in the presence of defibrillator pulses and other transients. This simplifies the design of isolated data acquisition and communication interfaces in medical equipment.
پیشنهادی
Isolated Sensor Interface
The ADUM5403ARWZ-RL7 provides a complete isolated interface for sensors such as temperature, pressure, and flow sensors. Its integrated isoPower supplies the sensor and signal conditioning circuitry on the isolated side, eliminating the need for a separate isolated supply. The four channels can be used for data, clock, and control signals, supporting various sensor protocols. The high data rate and low propagation delay ensure accurate real-time data transmission. The device's small package and high reliability make it suitable for industrial process control and remote monitoring systems. This simplifies the design of isolated sensor nodes in factory automation and building automation.
پیشنهادی
خلاصه محصولات پیشنهادی
داده‌های مرجع مهندسی برای ADUM5403ARWZ-RL7 — مقایسه، راهنمای طراحی و اطلاعات انطباق.
راهنمای انتخاب
مقایسه با جایگزین‌ها
| پارامتر | این محصول | ADUM5403ARWZ | ADUM5403CRWZ | ADUM5403WCRWZ | ADUM5401ARWZ | ADUM5402ARWZ | ISO7742DW |
|---|---|---|---|---|---|---|---|
| Package | 16-SOIC | 16-SOIC | 16-SOIC | 16-SOIC | 16-SOIC | 16-SOIC | 16-SOIC |
| Brand | Analog Devices | Analog Devices | Analog Devices | Analog Devices | Analog Devices | Analog Devices | Texas Instruments |
| Isolation Voltage | 2500 Vrms | 2500 Vrms | 2500 Vrms | 2500 Vrms | 2500 Vrms | 2500 Vrms | 5000 Vrms |
| Data Rate | 25 Mbps | 25 Mbps | 25 Mbps | 25 Mbps | 25 Mbps | 25 Mbps | 100 Mbps |
| Integrated DC-DC Converter | Yes (500 mW) | Yes (500 mW) | Yes (500 mW) | Yes (500 mW) | Yes (500 mW) | Yes (500 mW) | No |
| Channel Configuration | 2 forward, 2 reverse | 2 forward, 2 reverse | 2 forward, 2 reverse | 2 forward, 2 reverse | 3 forward, 1 reverse | 2 forward, 2 reverse | 2 forward, 2 reverse |
| Operating Temperature Range | -40°C to +105°C | -40°C to +105°C | -40°C to +125°C | -40°C to +125°C | -40°C to +105°C | -40°C to +105°C | -55°C to +125°C |
| Automotive Grade | No | No | No | Yes (AEC-Q100) | No | No | No |
تفاوت‌های کلیدی
- Integrated isoPower DC-DC converter (در مقابلISO7742DW)
- High common-mode transient immunity (در مقابلISO7742DW)
- Multiple temperature and grade options (در مقابلADUM5403ARWZ)
یادداشت‌های طراحی
The integrated isoPower DC-DC converter requires careful decoupling. Place a 0.1 µF ceramic capacitor close to VDD1 and GND1, and a 1 µF capacitor on VISO and GNDISO. The datasheet recommends a minimum load of 10% of the rated output power to maintain regulation. Ensure the input supply can provide sufficient current for both the logic and the converter (up to 500 mW output).
Maintain adequate creepage and clearance distances on the PCB to meet the isolation rating. The 16-SOIC package has 7.6 mm creepage, but the PCB layout must also provide at least 7.6 mm spacing between the input and output side copper. Use a slot or cutout under the device to increase the creepage path if needed. Follow the layout guidelines in the ADI datasheet for optimal isolation performance.
The ADUM5403ARWZ-RL7 can dissipate up to 1 W when delivering 500 mW at high ambient temperatures. The 16-SOIC package has a thermal resistance of approximately 80°C/W (theta_JA). At 105°C ambient, the junction temperature could reach 185°C, exceeding the maximum rating. Ensure adequate airflow or a thermal pad on the PCB to keep the junction temperature within limits. Derate the output power at high temperatures.
اطلاعات انطباق
RoHS compliant per ADI product page. Not AEC-Q100 qualified for base part; automotive grade available as ADUM5403WCRWZ.