TDA51SCANHC - 5kV Isolated CAN Transceiver 1Mbps | MORNSUN
MPN: TDA51SCANHC ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $2.35 | $2.35 |
| 10 | $2.12 | $21.20 |
| 100 | $1.77 | $177.00 |
| 500 | $1.6 | $800.00 |
| 1,000 | $1.45 | $1,450.00 |
Drop-in alternatives for TDA51SCANHC — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
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TDA5200
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View Datasheet →TDA51SCANHC Maximum Ratings & Electrical Characteristics
| Function | Isolated CAN bus transceiver with integrated 5 V isolated power |
| Protocol | CANbus (ISO11898-2 compliant) |
| Data Rate | Up to 1 Mbps |
| Isolation Voltage | 5000 VDC |
| Common-Mode Transient Immunity | 150 kV/us |
| Supply Voltage Range | 4.5 V to 5.5 V |
| Integrated Power Output | 5 V isolated power |
| Operating Temperature Range | -40C to +125C |
| Package | SOIC-16-300mil (16-SOIC Module, 0.295 in / 7.50 mm width) |
| Mounting Type | Surface Mount |
| Dominant Time-Out Function | Yes (TXD dominant time-out prevents bus lockup) |
| Channel Type | Single channel (CHA), CAN digital isolator |
| Packaging | Tape & Reel |
| Standard Package Quantity | 1000 |
| RoHS Status | RoHS compliant |
TDA51SCANHC 1000 Pin Configuration Guide
Complete pinout information for TDA51SCANHC (1000 package). This digital IC includes GPIO, communication interfaces (UART, SPI, I2C), and power pins. Refer to the manufacturer datasheet for alternate pin functions and configuration options. Essential for embedded system design and PCB layout.
No detailed pinout data available for TDA51SCANHC.
Refer to the datasheet for full pin configuration.
Safe Operating Area (SOA) & Thermal Characteristics
No official SOA curve available for this digital IC. Always operate within absolute maximum ratings specified in the datasheet. Ensure adequate cooling and derate as needed.
Typical Applications
TDA51SCANHC is suitable for 6 applications: Industrial Fieldbus and CANopen Nodes, Battery Management Systems (BMS), Motor Drive and Inverter Control Networks, Building Automation and Elevator Control, Medical Equipment Isolation, Test and Measurement Instrumentation.
Industrial Fieldbus and CANopen Nodes
In factory automation, nodes frequently sit meters or hundreds of meters apart on a CANopen or proprietary CAN network, accumulating large ground-potential differences. The TDA51SCANHC fits this application through its ISO11898-2 compliance, 1 Mbps data rate for fast cyclic I/O traffic, and 5000 VDC galvanic isolation that breaks ground loops between cabinets. The 150 kV/us common-mode transient immunity tolerates the noise floor of motor drives and contactors sharing the same installation. In the circuit, the controller-side logic connects to the isolated transceiver inputs while CANH/CANL drive the twisted-pair bus terminated at 120 ohm at both ends. The integrated 5 V isolated power eliminates a separate isolated DC-DC on the bus side, reducing module size and cost per node. The dominant time-out function further protects network availability if a node controller fails.
Recommended
Battery Management Systems (BMS)
A battery pack's cell-supervision electronics sit on a high-voltage, noisy domain, while the vehicle or inverter controller sits on chassis ground; CAN is the standard pack-level communication link and it must be isolated. The TDA51SCANHC addresses this with 5000 VDC isolation between the controller and the bus, 150 kV/us CMTI against switching transients from the inverter stage, and full -40C to +125C operation covering under-hood and outdoor energy-storage environments. Its 1 Mbps rate supports fast fault broadcast and state-of-charge messaging. Used between the BMS CAN controller and the pack-external bus, the part provides the entire isolated physical layer, including the 5 V isolated supply for the bus-side transceiver domain, which removes a discrete isolation converter from the high-voltage board and improves isolation-barrier integrity by reducing the number of components spanning the barrier.
Recommended
Motor Drive and Inverter Control Networks
Variable-frequency drives and servo amplifiers generate steep dv/dt transients that corrupt ground-referenced communication unless the interface is isolated with high common-mode transient immunity. The TDA51SCANHC's 150 kV/us CMTI directly targets this environment, and its 5000 VDC isolation withstands the potential swings between the DC-link-referenced control electronics and plant-earthed networks. Its 1 Mbps CAN link carries setpoints, status, and fault frames with deterministic latency. Placed between the drive MCU's CAN controller and the machine-network cable, the module supplies its own isolated 5 V bus-side power, so no isolated bias rail must cross the barrier near noisy power stages. Designers should keep the module's primary-side decoupling tight and route CANH/CANL away from the gate-drive and DC-link switching loops to preserve signal integrity.
Recommended
Building Automation and Elevator Control
Building networks span multiple floors and distribution boards, where earth potential differences and surge-coupled transients make direct-coupled CAN unreliable. The TDA51SCANHC provides the ISO11898-2 physical layer with 5000 VDC isolation, allowing each floor controller or elevator car electronics to float safely relative to the riser bus. Its -40C to +125C rating suits rooftop and machine-room installations, and 1 Mbps supports real-time car-position and door-control messaging. The integrated 5 V isolated power is particularly valuable in distributed nodes where adding a transformer-based isolated supply per node would dominate board cost. The TXD dominant time-out function keeps a single misbehaving controller from silencing the entire riser, an important availability property in life-safety-adjacent building systems such as fire-damper and access-control networks built on CAN.
Recommended
Medical Equipment Isolation
Patient-connected medical devices require galvanic isolation of external communication ports to protect patients from fault currents, and CAN is commonly used inside imaging, laboratory, and monitoring equipment to link subsystems. The TDA51SCANHC's 5000 VDC isolation rating and 150 kV/us transient immunity provide the robustness expected at the equipment boundary, while its integrated 5 V isolated power lets the external-port side float completely from patient-side electronics. The SOIC-16-300mil package gives usable creepage across the barrier for layout planning, though final spacing must be validated against the applicable medical safety standard for the end equipment. The -40C to +125C operating range and 1 Mbps data rate cover autoclave-adjacent laboratory hardware and real-time sensor aggregation without protocol throughput compromises.
Recommended
Test and Measurement Instrumentation
Bench and rack instruments interfacing to CAN-based devices under test benefit from an isolated CAN port that protects both instrument and DUT from ground conflicts. The TDA51SCANHC implements the complete isolated physical layer in one SOIC-16 module: ISO11898-2 transceiver, 5000 VDC barrier, and integrated 5 V isolated supply. Its 1 Mbps rate covers classical CAN fully, so the instrument can monitor or emulate nodes on vehicle, industrial, and battery-test benches without a separate isolated bias supply per channel - valuable when a rack instrument carries many isolated ports. The 150 kV/us CMTI survives switching loads on the DUT power supplies. The TXD dominant time-out ensures that a crashed DUT controller cannot hold the instrument's port in a blocked dominant state during long automated test sequences.
Recommended
Recommended Products Summary
Engineering reference data for TDA51SCANHC — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | TDA5200 | TDA5211 | TDA5230 | TDA5240 |
|---|---|---|---|---|---|
| Package | SOIC-16-300mil (7.50 mm module) | SOIC-16-300mil - same | SOIC-16-300mil family package - verify | SOIC-16-300mil family package - verify | SOIC-16-300mil family package - verify |
| Brand | MORNSUN Guangzhou Science & Technology | MORNSUN | MORNSUN | MORNSUN | MORNSUN |
| Protocol / Standard | CANbus, ISO11898-2 | CANbus, ISO11898-2 | [DATA_NEEDED] | [DATA_NEEDED] | [DATA_NEEDED] |
| Max Data Rate | 1 Mbps | [DATA_NEEDED] | [DATA_NEEDED] | [DATA_NEEDED] | [DATA_NEEDED] |
| Isolation Voltage | 5000 VDC | [DATA_NEEDED] | [DATA_NEEDED] | [DATA_NEEDED] | [DATA_NEEDED] |
| Common-Mode Transient Immunity | 150 kV/us | [DATA_NEEDED] | [DATA_NEEDED] | [DATA_NEEDED] | [DATA_NEEDED] |
| Supply Voltage Range | 4.5 V to 5.5 V | [DATA_NEEDED] | [DATA_NEEDED] | [DATA_NEEDED] | [DATA_NEEDED] |
| Operating Temperature | -40C to +125C | [DATA_NEEDED] | [DATA_NEEDED] | [DATA_NEEDED] | [DATA_NEEDED] |
| TXD Dominant Time-Out | Yes | [DATA_NEEDED] | [DATA_NEEDED] | [DATA_NEEDED] | [DATA_NEEDED] |
Key Differentiators
- Integrated 5 V isolated power output (vs TDA5200)
- 150 kV/us common-mode transient immunity (vs Non-isolated CAN transceivers (e.g., basic ISO11898-2 transceivers))
- TXD dominant time-out fault containment (vs TDA5240)
Design Notes
The TDA51SCANHC spans a 5000 VDC isolation barrier inside an SOIC-16-300mil (7.50 mm) package. Keep primary-side (controller) and secondary-side (bus) copper pours fully separated with no traces under the isolation gap, and honor the creepage/clearance distances your safety standard requires - the package's internal spacing is the ceiling of what the layout can achieve. Place 0.1 uF + 10 uF decoupling at both supply pins, and decouple the integrated 5 V isolated power output per the datasheet application circuit.
Do not assume pin compatibility across the MORNSUN TDA5x isolated-interface family: suffixes encode supply, power-output, and data-rate options, so verify the pinout table of any candidate second source (TDA5200, TDA5211, TDA5230, TDA5240) against the TDA51SCANHC datasheet before qualifying. Also, the dominant time-out timer briefly limits minimum transmit pulse behavior at very low bit rates - confirm the timeout spec against your lowest intended CAN bit rate rather than assuming it is always transparent.
Route CANH and CANL as a tightly coupled matched pair with 120 ohm characteristic impedance and terminate only at the two physical bus ends; stubs to this transceiver should be kept under roughly 0.3 m at 1 Mbps. Keep the pair away from the drive and inverter switching loops; the module's 150 kV/us CMTI handles common-mode transients, but differential-mode coupling from poor routing can still cause bit errors. A common-mode choke at the connector, per typical ISO11898-2 application circuits, improves EMC margin in industrial cabinets.
Compliance Information
RoHS compliance listed in JLCPCB component data. REACH, lead-free, halogen-free, and conflict-minerals declarations were not found in the provided data and should be confirmed from MORNSUN environmental documentation.
