ADUM5412ARWZ - 4-Ch Isolator w/ DC-DC | Analog Devices
MPN: ADUM5412ARWZ ✓ NakahandaADUM5412ARWZ Ulas
Digital isolators are components that transfer digital signals across an isolation barrier, preventing DC and noise from passing while allowing data and power transfer. They are essential in systems requiring galvanic isolation for safety, ground loop elimination, and noise immunity, such as industrial automation, medical equipment, and power conversion. The ADUM5412 integrates a DC-to-DC converter, enabling isolated power delivery without a separate transformer, simplifying design and reducing board space.
Key features include 2.5 kVrms isolation voltage, 150 Mbps data rate, 75 kV/µs CMTI, and an integrated DC-to-DC converter with adjustable output voltage. The device supports a wide supply voltage range of 3.0V to 5.5V on both sides, and provides up to 500 mW of isolated output power. The integrated converter eliminates the need for external transformers, reducing component count and design complexity.
The ADUM5412 uses Analog Devices' iCoupler technology, which employs chip-scale transformers for isolation, offering superior performance compared to optocouplers in terms of speed, reliability, and power efficiency. The device includes four independent isolation channels, configurable as 2/2 (two forward, two reverse) channel directionality, and features an enable pin for output control. The integrated DC-to-DC converter uses a push-pull architecture with a fixed switching frequency, providing stable isolated power with minimal ripple.
Typical applications include isolated SPI, RS-485, and CAN interfaces, isolated power supplies for sensor systems, and industrial fieldbus communication. The high CMTI and data rate make it suitable for motor drives, inverters, and other noisy environments. The integrated DC-to-DC converter is ideal for powering isolated side circuits without additional components.
When designing with the ADUM5412, ensure proper PCB layout with adequate creepage and clearance distances for the isolation rating. The integrated converter requires external capacitors for stability; refer to the datasheet for recommended values. Thermal considerations are important at high output power; the SOIC-W package has a thermal resistance of .
Mga alternatibo na pwedeng ilagay na ADUM5412ARWZ — parehas na package, pin-to-pin na katugmang. Hindi kasama ang mga bahagi ng iba't-ibang package na nangangailangan ng pagpapaayos ng PCB.
Variante sa Seri na ito
Katulad na modelo sa serye na katugma sa pagpasok ADUM5412ARWZ (parehas na form factor at footprint) — pagkakaiba sa Package, Data Rate, Number of Channels, Common-Mode Transient Immunity (CMTI), Operating Temperature Range.
ADUM5411ARWZ
✅ Drop-In ⚠️ Mga Talaan Hindi NaiwerikmoMagkontak para sa presyo
Tingnan ang Datasheet →ADUM5410ARWZ
✅ Drop-In ⚠️ Mga Talaan Hindi NaiwerikmoMagkontak para sa presyo
Tingnan ang Datasheet →ADUM5402ARWZ
✅ Drop-InMagkontak para sa presyo
Tingnan ang Datasheet →ADUM5412ARWZ Mga Pinakamataas na Rating at Electrical Characteristics
| Number of Channels | 4 |
| Isolation Voltage | 2500 Vrms |
| Rate ng Data | 150 Mbps |
| CMTI | 75 kV/µs |
| Integrated DC-DC Converter | Yes |
| Output Power (Isolated) | 500 mW |
| Supply Voltage (VDD1) | 3.0 V to 5.5 V |
| Supply Voltage (VDD2) | 3.0 V to 5.5 V |
| Channel Directionality | 2/2 (2 forward, 2 reverse) |
| Packhaging | 24-SOIC-W (0.300" width) |
| Temperature na Operasyon | -40°C to +125°C |
| Pin na Pinapayagan | Yes |
| Tindminan RoHS | Compliant |
| Uri ng Pagpapasok | Surface Mount |
| Isolation Technology | iCoupler |
Pin Configuration ng ADUM5412ARWZ
| Pin 1 | VDD1 — Primary side supply voltage (3.0V to 5.5V) |
| Pin 2 | GND1 — Primary side ground |
| Pin 3 | VIA — Input channel A |
| Pin 4 | VOA — Output channel A |
| Pin 5 | VIB — Input channel B |
| Pin 6 | VOB — Output channel B |
| Pin 7 | VIC — Input channel C |
| Pin 8 | VOC — Output channel C |
| Pin 9 | VID — Input channel D |
| Pin 10 | VOD — Output channel D |
| Pin 11 | EN — Enable pin (active high) |
| Pin 12 | GND1 — Primary side ground |
| Pin 13 | GND2 — Secondary side ground |
| Pin 14 | VISO — Isolated output voltage from DC-DC converter |
| Pin 15 | GND2 — Secondary side ground |
| Pin 16 | VDD2 — Secondary side supply voltage (3.0V to 5.5V) |
| Pin 17 | GND2 — Secondary side ground |
| Pin 18 | VDD2 — Secondary side supply voltage |
| Pin 19 | GND2 — Secondary side ground |
| Pin 20 | VDD2 — Secondary side supply voltage |
| Pin 21 | GND2 — Secondary side ground |
| Pin 22 | VDD2 — Secondary side supply voltage |
| Pin 23 | GND2 — Secondary side ground |
| Pin 24 | VDD2 — Secondary side supply voltage |
Tipikal na mga Gamit
ADUM5412ARWZ ay nararapat para sa 6 aplikasyons: Isolated SPI Interface, Isolated RS-485 Communication, Isolated CAN Bus Interface, Isolated Power Supply for Sensors, Motor Drive Isolation, Medical Equipment Isolation.
Isolated SPI Interface
The ADUM5412ARWZ provides four isolation channels and an integrated DC-DC converter, making it ideal for isolated SPI communication between a microcontroller and peripheral devices. With 150 Mbps data rate, it easily handles SPI clock and data lines. The integrated converter powers the isolated side, eliminating the need for a separate isolated supply. This simplifies design and reduces component count, making it suitable for industrial sensors and data acquisition systems.
Inirekomenda
Isolated RS-485 Communication
The ADUM5412ARWZ can be used to isolate RS-485 transceivers, providing galvanic isolation for industrial networks. Its high CMTI of 75 kV/µs ensures reliable operation in noisy environments. The integrated DC-DC converter supplies power to the isolated side of the transceiver, simplifying the power architecture. With 150 Mbps data rate, it supports high-speed RS-485 communication, making it suitable for factory automation and building control systems.
Inirekomenda
Isolated CAN Bus Interface
The ADUM5412ARWZ is well-suited for isolating CAN bus transceivers in automotive and industrial applications. Its 150 Mbps data rate far exceeds CAN's 1 Mbps requirement, providing ample margin. The integrated DC-DC converter powers the isolated side, reducing external components. The high CMTI ensures robust operation in the presence of motor noise and other transients. This makes it ideal for electric vehicle battery management systems and industrial motor drives.
Inirekomenda
Isolated Power Supply for Sensors
The ADUM5412ARWZ integrates a DC-DC converter that can provide up to 500 mW of isolated power, making it ideal for powering isolated sensor circuits. This eliminates the need for a separate isolated power module, saving board space and cost. The device can be used to power isolated amplifiers, ADCs, or digital sensors while providing data isolation. Its wide supply range of 3.0V to 5.5V accommodates various system voltages, and the regulated output ensures stable sensor operation.
Inirekomenda
Motor Drive Isolation
In motor drive applications, the ADUM5412ARWZ provides isolation between the control side and the power stage. Its high CMTI of 75 kV/µs ensures reliable operation in the presence of high dv/dt transients from IGBT switching. The integrated DC-DC converter can power the gate driver circuits on the high-voltage side. With 150 Mbps data rate, it can handle high-speed PWM signals. This makes it suitable for industrial inverters, servo drives, and robotics.
Inirekomenda
Medical Equipment Isolation
The ADUM5412ARWZ is suitable for medical equipment requiring galvanic isolation for patient safety. Its 2.5 kVrms isolation rating meets basic isolation requirements for many medical applications. The integrated DC-DC converter simplifies isolated power delivery, reducing leakage currents compared to external converters. The high data rate supports high-resolution imaging and monitoring systems. The device's small footprint and low component count make it ideal for portable medical devices.
Inirekomenda
Buod ng mga Inirekomendang Produkto
Impormasyon ng Talumpati sa Engineering for ADUM5412ARWZ — ikabit, gabay sa disenyo, at impormasyon ng pagsunod sa kautusan.
Paunawang Hanapin
Ikabit sa Mga Alternatibo
| Parametro | Ito ang Producto | ADUM5412BRSZ | ADUM5411ARWZ | ADUM5410ARWZ | ADUM5402ARWZ |
|---|---|---|---|---|---|
| Package | 24-SOIC-W (0.300") | 24-SSOP (0.209") | 24-SOIC-W (0.300") | 24-SOIC-W (0.300") | 24-SOIC-W (0.300") |
| Brand | Analog Devices | Analog Devices | Analog Devices | Analog Devices | Analog Devices |
| Number of Channels | 4 | 4 | 3 | 2 | 4 |
| Data Rate | 150 Mbps | 150 Mbps | 150 Mbps | 150 Mbps | 1 Mbps |
| Isolation Voltage | 2500 Vrms | 2500 Vrms | 2500 Vrms | 2500 Vrms | 2500 Vrms |
| Integrated DC-DC | Yes | Yes | Yes | Yes | Yes |
| Output Power | 500 mW | 500 mW | 500 mW | 500 mW | 500 mW |
| CMTI | 75 kV/µs | 75 kV/µs | 75 kV/µs | 75 kV/µs | 25 kV/µs |
Pangunahing mga Pagkakaiba
- Integrated DC-DC converter (kumpara saISO7742DW)
- Higher data rate (kumpara saADUM5402ARWZ)
- Higher CMTI (kumpara saADUM5402ARWZ)
Talaan ng Disenyo
For the ADUM5412ARWZ, maintain proper creepage and clearance distances on the PCB to meet the 2.5 kVrms isolation rating. The SOIC-W package has a minimum creepage of 7.6 mm, so ensure the PCB layout provides at least this distance between primary and secondary side traces. Use a slot or cutout under the device to increase creepage if needed.
The integrated DC-DC converter requires external capacitors for stability. Place a 1 µF capacitor on VDD1 and VDD2, and a 10 µF capacitor on VISO. Use low-ESR ceramic capacitors placed close to the pins. The converter can deliver up to 500 mW; ensure the input supply can handle the load current.
At maximum output power (500 mW), the ADUM5412ARWZ may dissipate significant heat. The SOIC-W package has a thermal resistance of approximately 60°C/W (typical). Ensure adequate copper area on the PCB for heat dissipation, and consider airflow if operating at high ambient temperatures. Monitor junction temperature to stay within the -40°C to +125°C range.
Impormasyon ng Pagsunod sa Kautusan
RoHS compliant per Analog Devices product page. Not AEC-Q100 qualified.
