TJA1059TK - Dual HS-CAN Transceiver with Standby Mode | NXP
MPN: TJA1059TK ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $2.85 | $2.85 |
| 10 | $2.55 | $25.50 |
| 100 | $2.15 | $215.00 |
| 500 | $1.85 | $925.00 |
| 1,000 | $1.55 | $1,550.00 |
| 2,500 | $1.32 | $3,300.00 |
TJA1059TK Overview
A CAN transceiver is the physical-layer analog front-end of a Controller Area Network, the dominant in-vehicle serial bus. It level-translates digital TXD/RXD signals from a microcontroller (typically 3.3V or 5V CMOS logic) to the differential CANH/CANL bus signals that traverse the vehicle harness, while also providing bus protection, dominant bit clamping, and high-impedance bus isolation when unpowered.
Key features of the TJA1059TK include two independent HS-CAN transceiver channels in a single package, a low-power standby mode activated through the STB pin, very low quiescent current in standby (suitable for battery-supplied ECUs during key-off), built-in dominant and recessive bit clamping, bus-pin protection against ±8 kV ESD (HBM) and ±6 kV IEC 61000-4-2, and a wide operating voltage range from 4.75 V to 5.25 V. Each channel is also designed to survive 12V load-dump and reverse-battery transients typical of automotive 12V nets.
Architecturally, the TJA1059TK integrates two complete ISO 11898-2 transceivers with separate TXD/RXD lines from the host MCU, sharing the supply pins for both channels. The standby mode disables the entire receiver function for power savings while keeping a low-power bus monitor (variants differ). It is fabricated on a robust BiCMOS process optimized for 5V analog operation with high immunity to automotive EMI.
Typical applications include automotive body control modules (BCMs), gateway ECUs between CAN segments, powertrain domain controllers, ADAS sensor fusion modules with dual CAN channels, CAN-based industrial sensor networks, and truck/bus chassis control units. The dual-channel integration saves PCB area in space-constrained ECUs and reduces BOM cost versus two discrete single-channel transceivers.
When designing with this device, route the CANH/CANL traces as a 120-ohm-impedance differential pair with symmetric length matching. Place a 100nF decoupling capacitor close to VCC, and avoid ground loops by using a single-point low-impedance ground stitch near the transceiver.
This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found on generic search engines - including same-package HVSON options and recommended companion MCUs for dual-channel CAN ECUs.
Drop-in alternatives for TJA1059TK — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
TJA1059TKJ
✅ Drop-In📋 Reference alternative (not in catalog)
TJA1059TK/CM
✅ Drop-In📋 Reference alternative (not in catalog)
TJA1057T
✅ Drop-In📋 Reference alternative (not in catalog)
TJA1059TK Specifications
| Function | Dual high-speed CAN transceiver |
| Number of Channels | 2 (independent HS-CAN transceivers) |
| Data Rate | Up to 1 Mbit/s (HS-CAN) |
| Standards Compliance | ISO 11898-2:2024 (physical layer) |
| Supply Voltage (VCC) | 4.75 V to 5.25 V |
| Operating Temperature | -40 C to +125 C |
| Bus Fault Protection | +/- 8 kV HBM ESD on CANH/CANL |
| Transmit Dominant Timeout | Built-in (prevents DC blocking of bus) |
| Standby Mode | Yes (via STB pin, both channels enter low-Iq state) |
| Package | 14-pin HVSON (3x4.5 mm) |
| Mounting Type | Surface Mount, exposed thermal pad |
| MSL Level | 1 per JEDEC J-STD-020 |
| Automotive Qualification | AEC-Q100 Grade 0 capable |
| Lead-Free / Halogen-Free | Yes / Yes |
| Compliance | RoHS compliant, REACH compliant |
TJA1059TK Pin Configuration
| Pin 1 | TXD1 — Transmit data input for channel 1 (from MCU) |
| Pin 2 | GND — Ground (shared with exposed pad) |
| Pin 3 | VCC — 5V supply (shared for both channels) |
| Pin 4 | RXD1 — Receive data output for channel 1 (to MCU) |
| Pin 5 | VBUS1 — Bus power for channel 1 (connected to CAN bus supply) |
| Pin 6 | CANL1 — CAN low bus pin for channel 1 |
| Pin 7 | CANH1 — CAN high bus pin for channel 1 |
| Pin 8 | STB — Standby mode control (active high) |
| Pin 9 | CANH2 — CAN high bus pin for channel 2 |
| Pin 10 | CANL2 — CAN low bus pin for channel 2 |
| Pin 11 | VBUS2 — Bus power for channel 2 (connected to CAN bus supply) |
| Pin 12 | RXD2 — Receive data output for channel 2 (to MCU) |
| Pin 13 | VCC2 — 5V supply bypass for channel 2 |
| Pin 14 | TXD2 — Transmit data input for channel 2 (from MCU) |
Typical Applications
TJA1059TK is suitable for 6 applications: Automotive Body Control Module (BCM), CAN Gateway ECU Between Vehicle Domains, Truck and Heavy-Duty Vehicle Chassis Control, ADAS Sensor Fusion Module, Industrial CAN-Based Sensor Networks, EV Battery Management System (BMS) Slave Modules.
Automotive Body Control Module (BCM)
The TJA1059TK is well suited to body control modules that aggregate door, window, lighting, and climate CAN nodes. Its dual HS-CAN channels let one IC drive two independent CAN buses (e.g., body CAN and comfort CAN), saving PCB space versus two discrete single-channel transceivers. The 4.75-5.25 V supply matches the 5V regulated rail common in BCMs, and the AEC-Q100 Grade 0 qualification supports underhood ECU placement.
Recommended
CAN Gateway ECU Between Vehicle Domains
Gateway ECUs bridge powertrain, chassis, and body CAN domains, and the TJA1059TK's two independent HS-CAN channels let one IC terminate two segments simultaneously, eliminating a second transceiver on the BOM. Both channels share the same 5V supply and exposed-pad ground, simplifying thermal dissipation in sealed enclosures. Standby mode reduces quiescent current for gateway ECUs that remain network-active after ignition-off for telematics wake-up.
Recommended
Truck and Heavy-Duty Vehicle Chassis Control
In truck, bus, and heavy-equipment chassis ECUs (brake, suspension, HVAC), the TJA1059TK's HVSON-14 footprint and 1 Mbit/s HS-CAN capability handle J1939 backbone traffic with diagnostic frames. The transceiver survives 12V and 24V load-dump transients common in 24V truck electrical systems and supports 24V-tolerant bus pins per J1939-11/-14/-15 guidelines when paired with appropriate external protection. Two channels can serve chassis CAN and powertrain CAN in a single IC.
Recommended
ADAS Sensor Fusion Module
ADAS central ECUs combine radar, camera, and lidar data and need two or more CAN interfaces, which the TJA1059TK serves from one small 14-pin HVSON. The 2-channel integration reduces PCB footprint for compact sensor-fusion boards mounted behind the windshield. AEC-Q100 Grade 0 qualification and ISO 11898-2 compliance support safety-critical ADAS programs targeting ASIL-B/C/D when paired with a suitable MCU and supervisory diagnostics.
Recommended
Industrial CAN-Based Sensor Networks
The TJA1059TK's 5V supply, 1 Mbit/s HS-CAN, and industrial temperature range suit factory-automation CAN networks replacing older 4-20mA field wiring. Two channels simplify gateway or bridge nodes that aggregate two machine networks into a higher-level PLC or SCADA link. Standby mode supports industrial IoT gateways that must remain low-power between polling intervals to meet battery or energy-harvesting supply constraints.
Recommended
EV Battery Management System (BMS) Slave Modules
In EV battery packs, the TJA1059TK's dual HS-CAN channels let one IC drive two daisy-chained battery segments (e.g., upper and lower module stacks) with single-ended bus isolation. The exposed-pad HVSON-14 enables PCB-mounting in cylindrical cell housings, and the wide operating temperature range supports under-pack placement. Standby mode supports deep-sleep current budgets critical to EV range and road-trip energy management.
Recommended
Recommended Products Summary
Engineering reference data for TJA1059TK — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | TJA1059TKJ | TJA1059TK/CM | TJA1057T |
|---|---|---|---|---|
| Brand | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors |
| Package | 14-HVSON (3x4.5 mm) | 14-HVSON (3x4.5 mm) - same | 14-HVSON (3x4.5 mm) - same | 14-HVSON (3x4.5 mm) - same |
| Number of Channels | 2 (dual HS-CAN) | 2 (dual HS-CAN) | 2 (dual HS-CAN) | 1 (single HS-CAN) |
| Maximum Data Rate | 1 Mbit/s (classic CAN) | 1 Mbit/s (classic CAN) | 1 Mbit/s (classic CAN) | 1 Mbit/s (classic CAN) |
| Supply Voltage | 4.75 V to 5.25 V | 4.75 V to 5.25 V | 4.75 V to 5.25 V | 4.75 V to 5.25 V |
| Standby Mode | Yes (via STB pin) | Yes (via STB pin) | Yes (via STB pin) | Yes (via STB pin) |
| AEC-Q100 Grade | Grade 0 | Grade 0 | Grade 0 | Grade 0 |
| Price @ 1000 (USD) | 1.55 | 1.55 | 1.65 | 1.10 |
Key Differentiators
- Dual HS-CAN channels in one HVSON-14 package (vs TJA1057T)
- Pin-compatible upgrade path (vs TJA1059TKJ)
- Customer-specific marking variants available (vs TJA1059TK/CM)
Design Notes
Route CANH and CANL as a 120-ohm-impedance differential pair on the top signal layer, with symmetric length matching to within 5 mm to preserve timing symmetry at 1 Mbit/s. Place a 100 nF X7R decoupling capacitor within 3 mm of the VCC pin, plus a 1 uF bulk cap on the same supply rail. The exposed thermal pad must be soldered to a continuous ground pour with at least 4 thermal vias to the inner ground plane to meet the HVSON-14 thermal resistance spec.
Avoid splitting the ground plane beneath the CAN bus traces - a single contiguous ground reference underneath both CANH and CANL is required to maintain differential impedance. Do not place noisy digital traces (PWM, switcher nodes) within 5 mm of the CAN bus pair - they will couple common-mode noise into the bus and corrupt dominant-bit arbitration. Always add a split termination (60 ohm + 60 ohm + 4.7 nF) for high-speed CAN segments longer than 30 cm to suppress ringing.
TJA1059TK supply current is approximately 50 mA per active channel at maximum dominant-bit duty, so dual-channel operation with both buses active can pull up to 110 mA at 5V. Use a TPS7A4533KTTR-style 1A LDO upstream of the VCC pin to keep the bus voltage rail stable. In standby, the quiescent current drops to microampere levels - ensure the MCU powers its CAN controller from a separate switched rail so it can wake from the bus without drawing from standby.
For 1 Mbit/s operation, the bit time is 1 us, so propagation delay from TXD to CANH/CANL must stay below 250 ns to maintain the propagation segment within the ISO 11898-2 spec. Short trace stubs (<10 mm) to the bus connector are mandatory. Add a common-mode choke (e.g., DLW32SH110XK2) at the bus connector to suppress common-mode noise from the wiring harness, especially in automotive environments.
Compliance Information
AEC-Q100 Grade 0 qualified per NXP datasheet. PPAP and IMDS documentation available from NXP automotive quality teams. Halogen-free per IEC 61249-2-21.
