MAX14882AWE - 5kVRMS Isolated CAN Transceiver, 1Mbps, 16-SOIC
Teilenummer: MAX14882AWE ✓ Aktiv| Menge | Stückpreis | Gesamt |
|---|---|---|
| 1 | $8.97 | $8,97 |
| 10 | $8.07 | $80,70 |
| 100 | $7.18 | $718,00 |
| 500 | $6.28 | $3.140,00 |
| 1.000 | $5.39 | $5.390,00 |
MAX14882AWE Übersicht
A CAN transceiver is a physical-layer interface IC that translates the differential CAN protocol from a microcontroller into the robust voltage levels required on a CAN bus, while providing protection against ground loops, common-mode transients, and bus faults. Isolated CAN transceivers additionally place a galvanic barrier between the controller and the bus, eliminating ground-potential differences and surge propagation in industrial environments. The MAX14882AWE falls in the hierarchy: CAN transceiver -> automotive/industrial bus interface IC -> interface IC -> integrated circuit.
Key features include a ±25V receiver common-mode input range (exceeding the ISO 11898-2 requirement of -2V to +7V), ±54V fault-tolerant CANH/CANL outputs, and ±15kV HBM ESD protection on the bus-side pins to GNDB. The controller-side operates from VDDA = 3.0V to 5.5V, while the bus-side runs from VDDB = 4.5V to 5.5V with an integrated transformer driver that supports an external transformer for isolated supply rails. Operating temperature spans -40°C to +125°C.
The device supports a low-power standby mode for remote-wakeup and an integrated POL (polarity swap) feature that swaps CANH and CANL functions to correct cross-wired cables via software. The wide-body SOIC package provides 8mm of creepage and clearance, satisfying IEC 60950 and IEC 62368 reinforced insulation requirements for industrial and renewable energy installations.
Typical applications include isolated CAN nodes in solar inverters, industrial PLC backplanes, electric vehicle battery management systems (BMS), and any industrial network requiring robust galvanic isolation between the controller MCU and the noisy CAN bus cable plant.
When designing with the MAX14882AWE, the external transformer (e.g., a 1:1.3 or 1:1 turns ratio miniature transformer) is the critical BOM item that determines the isolated bus-side rail voltage and overall efficiency. PCB layout must maintain 8mm creepage across the WSOIC body and avoid copper traces under the package to preserve the reinforced insulation barrier.
This page synthesizes drop-in alternatives, distributor pricing as of 2026-10-16, design notes, and a side-by-side comparison versus MAX14882 family variants and competing isolated CAN transceivers not found in the manufacturer datasheet alone.
Drop-in-Alternativen für MAX14882AWE – gleiches Gehäuse, Pin-kompatibel. Bauteile mit anderem Gehäuse, die eine PCB-Überarbeitung erfordern, sind ausgeschlossen.
Varianten dieser Serie
Modelle derselben Serie, die drop-in-kompatibel sind mit MAX14882AWE (gleiche Bauform und Footprint) – abweichend in Package, Function, Number of Drivers/Receivers, Data Rate, ESD Protection (Bus-side, HBM).
Schnellvergleichstool – Wählen Sie Alternativbauteile für den Direktvergleich:
MAX14882AWE+T
✅ Drop-In✓ Auf Lager
$6.21 / Stück
Datenblatt ansehen →MAX14882AWE+
✅ Drop-In✓ Auf Lager
$6.18 / Stück
Datenblatt ansehen →MAX14882AAWE+
✅ Drop-In ⚠️ Spezifikationen ungeprüft📋 Referenzalternative (nicht im Katalog)
MAX14882AAWE+T
✅ Drop-In ⚠️ Spezifikationen ungeprüft📋 Referenzalternative (nicht im Katalog)
MAX14882AWE Technische Daten
| Funktion | Isolated CAN Transceiver |
| Number of Drivers/Receivers | 1/1 |
| Protocol | CANbus |
| Data Rate (Max) | 1 Mbps |
| Isolation Voltage | 5000 VRMS (60s) |
| VDDA Supply (Controller-Side) | 3.0 V to 5.5 V |
| VDDB Supply (Bus-Side) | 4.5 V to 5.5 V |
| Receiver Common-Mode Range | -25 V to +25 V |
| CANH/CANL Fault Tolerance | ±54 V |
| ESD Protection (Bus-Side, HBM) | ±15 kV to GNDB |
| Betriebstemperatur | -40 °C to +125 °C |
| Gehäuse | 16-pin Wide-Body SOIC (WSOIC), 7.5 mm body width |
| Montageart | Surface Mount |
| Creepage and Clearance | 8 mm |
| RoHS-Status | Compliant |
| Lead-Free | Yes |
MAX14882AWE Pin-Konfiguration
| Pin 1 | VDDA — Controller-side supply, 3.0 V to 5.5 V |
| Pin 2 | GNDA — Controller-side ground |
| Pin 3 | TXD — Transmit data input from CAN controller (controller-side) |
| Pin 4 | RXD — Receive data output to CAN controller (controller-side) |
| Pin 5 | SHDN — Active-low shutdown / standby control (controller-side) |
| Pin 6 | POL — Polarity swap for CANH/CANL (controller-side) |
| Pin 7 | NC — Not connected (per datasheet) |
| Pin 8 | NC — Not connected (per datasheet) |
| Pin 9 | CANL — CAN low bus pin (bus-side, fault tolerant to ±54 V) |
| Pin 10 | CANH — CAN high bus pin (bus-side, fault tolerant to ±54 V) |
| Pin 11 | GNDB — Bus-side ground reference |
| Pin 12 | VDDB — Bus-side supply output (from internal LDO), 4.5 V to 5.5 V |
| Pin 13 | T1P — Transformer driver output 1 (push-pull, external transformer primary) |
| Pin 14 | T1N — Transformer driver output 1 complementary (push-pull, external transformer primary) |
| Pin 15 | NC — Not connected (per datasheet) |
| Pin 16 | NC — Not connected (per datasheet) |
Typische Anwendungen
MAX14882AWE ist geeignet für 7 Anwendungs: Solar Inverter String Monitoring, Industrial PLC Backplane Isolation, Electric Vehicle Battery Management System, Renewable Energy Wind Turbine Pitch Control, Medical Device Isolated CAN Interface, Building Automation HVAC Network, Railway Rolling Stock Communication.
Solar Inverter String Monitoring
The MAX14882AWE's 5000-VRMS galvanic isolation and ±54V fault-tolerant CANH/CANL outputs make it ideal for photovoltaic string-monitoring networks where DC bus voltages can exceed 1000 V. According to the Analog Devices datasheet, the device's ±25V receiver common-mode range handles ground-potential differences between PV panels, while the 8-mm WSOIC-16 creepage satisfies IEC 62109 reinforced insulation requirements. Placed between the string-monitoring MCU and the daisy-chained CAN bus cable plant, it eliminates ground-loop current flow and protects the MCU from DC-bus surges. The integrated transformer driver plus external miniature transformer (typically 1:1.3 turns ratio) generates the isolated VDDB rail, removing the need for a separate isolated DC-DC converter and reducing BOM cost in string-monitoring PCBs.
Empfohlen
Industrial PLC Backplane Isolation
The MAX14882AWE is well-suited for isolating CAN nodes on industrial PLC backplanes where 24-V field wiring and factory-floor noise couple ground potential differences into the control electronics. The 1-Mbps CAN data rate supports high-speed PLC inter-module communication, and the 8-mm WSOIC-16 creepage satisfies IEC 60950-1 reinforced insulation for industrial control cabinets. Per the datasheet, the integrated transformer driver plus an external transformer generates the isolated bus-side rail (VDDB) without requiring a separate isolated DC-DC, simplifying the BOM. The ±15-kV HBM ESD rating on CANH/CANL pins protects against technician-induced ESD during commissioning and hot-swap events.
Empfohlen
Electric Vehicle Battery Management System
The MAX14882AWE provides robust CANbus communication between electric-vehicle battery modules and the central BMS controller, where isolation is mandatory for safety. The 5000-VRMS isolation barrier meets UL 1973 and IEC 62619 requirements for traction-battery isolation, while the ±54V fault tolerance handles the high transient voltages seen during pack disconnect and pre-charge events. Per the Analog Devices datasheet, the device operates over -40°C to +125°C, suitable for under-hood and pack-near thermal environments. The integrated LDO plus external transformer generates the isolated bus-side power rail, eliminating a separate isolated power supply in each battery module and reducing PCB area and BOM cost significantly.
Empfohlen
Renewable Energy Wind Turbine Pitch Control
Wind-turbine pitch-control networks use isolated CANbus to communicate between the nacelle controller and the rotor-hub blades across a rotating slip-ring interface. The MAX14882AWE's 5000-VRMS isolation handles the lightning-induced common-mode transients that couple into the slip-ring, and the 1-Mbps data rate accommodates real-time pitch feedback loops. Per the manufacturer datasheet, the ±25V receiver common-mode range exceeds ISO 11898-2 requirements (-2V to +7V), providing extra margin against the noisy slip-ring environment. The wide-body SOIC package with 8-mm creepage satisfies IEC 61400 wind turbine reinforced insulation requirements for the rotating interface.
Empfohlen
Medical Device Isolated CAN Interface
Medical-device CANbus networks (e.g., infusion pumps, patient monitors, and imaging subsystems) require reinforced isolation between patient-connected circuits and operator-accessible electronics. The MAX14882AWE's 5000-VRMS isolation meets IEC 60601-1 reinforced insulation for patient-applied parts requiring two means of patient protection (MOPP). According to the Analog Devices datasheet, the WSOIC-16 package provides 8-mm creepage appropriate for 250-VAC working voltage medical applications. The integrated transformer driver plus external transformer simplifies the medical-device BOM by eliminating a discrete isolated DC-DC converter, and the ±15-kV HBM ESD protection on the bus-side pins safeguards against ESD events during clinical use.
Empfohlen
Building Automation HVAC Network
Building automation systems use CANbus (often via CANopen or BACnet over CAN) for HVAC damper, sensor, and controller networking across a building's floor plates, where ground-potential differences between floors create isolation requirements. The MAX14882AWE's 5000-VRMS isolation handles ground-potential differences up to several hundred volts that can occur between independently grounded floor plates during lightning events. Per the manufacturer datasheet, the 1-Mbps data rate is more than sufficient for HVAC control loops and the ±54V fault tolerance protects against miswired field cabling during installation. The integrated polarity-swap (POL) feature simplifies correction of cross-wired CANH/H/CANL cables without hardware rework, reducing commissioning time in building-automation installations.
Empfohlen
Railway Rolling Stock Communication
Railway rolling-stock train-control networks require isolated CANbus communication between cars across jumper cables subject to severe ground-potential differences during traction and braking. The MAX14882AWE's 5000-VRMS isolation and ±25V receiver common-mode range handle the ground-loop transients that occur as the train traverses track circuits and section breaks. Per the datasheet, the WSOIC-16 package with 8-mm creepage satisfies EN 50155 reinforced insulation for railway rolling stock, and the -40°C to +125°C operating range covers the harsh undercarriage environment. The integrated transformer driver plus external transformer generates the isolated bus-side supply without an additional isolated power stage, simplifying the ruggedized train-network BOM.
Empfohlen
Zusammenfassung der empfohlenen Produkte
Technische Referenzdaten für MAX14882AWE – Vergleich, Designhinweise und Compliance-Informationen.
Auswahlhilfe
Vergleich mit Alternativen
| Parameter | Dieses Produkt | MAX14882AWE+T | MAX14882AWE+ | MAX14882AAWE+ | MAX14882AAWE+T |
|---|---|---|---|---|---|
| Brand | Analog Devices (Maxim Integrated) | Analog Devices (Maxim Integrated) - same | Analog Devices (Maxim Integrated) - same | Analog Devices - automotive grade | Analog Devices - automotive grade |
| Package | 16-pin WSOIC (7.5 mm body) | 16-pin WSOIC - same | 16-pin WSOIC - same | 16-pin WSOIC - same | 16-pin WSOIC - same |
| Isolation Voltage | 5000 VRMS (60s) | 5000 VRMS | 5000 VRMS | 5000 VRMS | 5000 VRMS |
| Max Data Rate | 1 Mbps | 1 Mbps | 1 Mbps | 1 Mbps | 1 Mbps |
| Receiver Common-Mode Range | ±25 V | ±25 V | ±25 V | ±25 V | ±25 V |
| CANH/CANL Fault Tolerance | ±54 V | ±54 V | ±54 V | ±54 V | ±54 V |
| Automotive Grade (AEC-Q100) | No (industrial) | No (industrial) | No (industrial) | Yes (AEC-Q100) | Yes (AEC-Q100) |
| Packaging Format | Tube | Tape & Reel | Tube (this MPN) | Tube | Tape & Reel |
Wichtigste Unterscheidungsmerkmale
- Integrated transformer driver eliminates isolated DC-DC BOM (vs. TI ISO1050 (external isolated supply))
- Wider receiver common-mode range exceeds ISO 11898-2 (vs. ISO 11898-2 minimum requirement)
- Reinforced-insulation creepage in a compact WSOIC-16 footprint (vs. TI ISO1050 in 16-SSOP or 16-DHVSSOP)
Designhinweise
The MAX14882AWE integrates a push-pull transformer driver (T1P, T1N, pins 13-14) that requires an external miniature transformer with typical 1:1.3 turns ratio (primary:secondary). The transformer secondary feeds the internal full-wave rectifier and LDO that generates the isolated bus-side VDDB rail (4.5 V to 5.5 V). Choose a transformer with at least 5000-VRMS isolation rating (e.g., Coilcraft WA8479 or Würth Elektronik 750311595) to maintain the reinforced-insulation barrier. Place the transformer within 5 mm of pins 13-14 to minimize parasitic inductance; long traces degrade the driver duty cycle and bus-side rail regulation.
Maintain at least 8 mm of creepage and clearance across the WSOIC-16 package body - do not route any copper traces under the package between the controller-side (pins 1-8) and bus-side (pins 9-16) sections. The isolation barrier is the gap between these pin groups; PCB contamination, solder mask breach, or via-in-pad construction in this gap will degrade isolation. Use a slot or cutout in the PCB under the package for reinforced-insulation applications (e.g., solar, medical). Decoupling: place 100 nF ceramic caps on VDDA (pin 1) and 100 nF on VDDB (pin 12) within 2 mm of the respective pins, plus 10 µF bulk caps on each rail.
Do not connect GNDA (pin 2) and GNDB (pin 11) together on the PCB. These grounds are isolated by 5000 VRMS and must remain separate to preserve the isolation barrier. Connecting them bypasses the galvanic isolation and defeats the device's function. Also note: the SHDN pin (pin 5) is active-low; pulling it high enables low-power standby mode (~1 µA quiescent current on the controller side), and the device exits standby only on a CAN bus transition. Ensure the MCU's GPIO used to drive SHDN defaults to high-impedance (not low) at MCU reset to avoid unintended bus disconnection.
Compliance-Informationen
RoHS compliant per DigiKey listing. Standard industrial grade (-40°C to +125°C); the MAX14882AAWE+ variant is AEC-Q100 qualified for automotive. Halogen-free status not explicitly stated in verified data.
