Product Overview
The TH8055JDC is a single-wire CAN bus transceiver from Melexis Technologies, designed for Class B in-vehicle communication networks and other low-speed, cost-sensitive applications. It provides the physical layer interface between a CAN protocol controller and a single-wire data bus, operating with the Bosch CAN 2.0 protocol at typical speeds of 33 kbit/s (normal mode) and up to 83 kbit/s (high-speed download mode). Compliant with SAE J2411 and GMW3089 V1.26 specifications, it is pin-compatible with the NXP AU5790 transceiver. The device operates from a 5 V to 18 V supply and features an extremely low 30 µA sleep mode current with selective bus wake-up capability. Built for harsh automotive environments, it provides robust protection against load dump, jump start, ISO 7637 transients (±200 V), short-circuits, loss of ground, and thermal overload. With wave-shaped output drivers for low RFI and integrated receiver filtering, the TH8055JDC in an SOIC-8 package offers a compact and reliable solution for single-wire CAN networking.
Key Specifications
| Protocol / Standard | SAE J2411 / GMW3089 V1.26 (Single-Wire CAN) |
| Type | Single-wire CAN transceiver (physical layer) |
| Data Rate (Normal) | 33 kbit/s typical |
| Data Rate (High-Speed) | Up to 83-100 kbit/s |
| Supply Voltage (VBAT) | 5 V to 18 V operating |
| Supply Voltage (Load Dump) | 40 V (t < 500 ms) |
| Supply Voltage (Jump Start) | 27 V (t < 1 min) |
| Sleep Mode Current | 30 µA typical |
| Operating Modes | Sleep, Normal, High-Speed, Wake-up |
| Bus Transient Rating | ±200 V (ISO 7637) |
| Bus ESD Protection | 4 kV HBM (CAN pin) |
| Other Pins ESD | 2 kV HBM |
| Undervoltage Lockout | Yes |
| Bus Dominant Timeout | Yes |
| Thermal Protection | Yes (thermal shutdown) |
| Loss of Ground Protection | Yes |
| Pin Compatibility | AU5790 (NXP) |
| Operating Temperature | -40°C to +125°C |
| Package | SOIC-8 (3.9 mm width) |
Features
- Single-wire CAN transceiver, fully SAE J2411 compliant
- 33 kbit/s normal mode, up to 83 kbit/s high-speed mode
- 30 µA typical sleep mode current (independent of CAN voltage)
- 5 V to 18 V operating voltage range
- Selective bus wake-up capability
- Low RFI due to output wave shaping
- Fully integrated receiver filter
- Bus pins proof against short-circuits and automotive transients
- Loss of ground protection
- Load dump (40 V) and jump start (27 V) protection
- ISO 7637 transient protection (±200 V)
- Thermal overload and short-circuit protection
- 4 kV ESD on CAN pin, 2 kV on other pins
- Undervoltage lockout (UVLO)
- Bus dominant timeout feature
- Output blanking during bus ringing
- Pin-compatible with NXP AU5790
- SOIC-8 surface mount package
- AEC-Q100 qualified (automotive grade)
Applications
- Automotive body electronics (Class B networks)
- Door modules and window lift controls
- Seat adjustment systems
- Climate control modules
- Lighting control systems
- Industrial single-wire CAN networks
- Low-cost sensor bus networks
- Off-road vehicle communication systems
- General-purpose low-speed data links
- Aftermarket automotive electronics