TJA1100HNZ - 100BASE-T1 Automotive Ethernet PHY | NXP
MPN: TJA1100HNZ ✗ Tapus ng BuhayTJA1100HNZ Ulas
A 100BASE-T1 PHY is a physical-layer interface IC that converts digital Ethernet data into electrical signals for a single twisted-pair cable and converts received signals back into digital data. It sits between an Ethernet MAC or automotive ECU and the physical cable. The TJA1100HNZ therefore belongs to the automotive network interface hierarchy: Ethernet controller, PHY transceiver, 100BASE-T1 interface, and physical-layer semiconductor.
Key verified features include one Ethernet PHY port, 100 Mb/s operation, MII and RMII host interfaces, 3.3 V supply operation, operation from -40°C to +125°C, and AEC-Q100 automotive qualification. The device supports cable lengths of at least 15 m, helping it address compact vehicle wiring environments while reducing cable weight compared with conventional higher-channel-count Ethernet links.
The TJA1100HNZ integrates the analog PHY and digital host-side interface needed for a 100 Mbit/s automotive Ethernet connection. Its MII and RMII interfaces provide compatibility with different controller arrangements, although the selected host interface, clocking, and software configuration must be checked against the complete system design. The 3.3 V operating supply is suitable for automotive electronic control units where low-voltage digital rails are common.
Typical applications include IP camera links, driver-assistance systems, automotive backbone Ethernet, vehicle infotainment networks, and other in-vehicle Ethernet nodes. The single-pair cable architecture can simplify vehicle wiring compared with multi-pair Ethernet, while the automotive temperature rating and AEC-Q100 qualification support harsh operating environments.
When laying out a TJA1100HNZ PCB, preserve the recommended high-speed copper connections and provide clean power and ground planes around the PHY. Differential pair routing, impedance control, return-path continuity, and separation from noisy switching circuits are essential because cable-side signal integrity affects link reliability. The supplied data confirms a 36-pin HVQFN package, but individual pin names and detailed layout values require the NXP datasheet.
Mga alternatibo na pwedeng ilagay na TJA1100HNZ — 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 TJA1100HNZ (parehas na form factor at footprint) — pagkakaiba sa Package, Product Type, Data Rate, Automotive Qualification, Host Interface.
TJA1100HN
✅ Drop-InMagkontak para sa presyo
Tingnan ang Datasheet →TJA1101AHN/0Z
✅ Drop-In📋 Alternatibo na Reference (hindi sa katalogo)
TJA1102HN/0Z
✅ Drop-InMagkontak para sa presyo
Tingnan ang Datasheet →TJA1021T/20/C
✅ Drop-InMagkontak para sa presyo
Tingnan ang Datasheet →LAN9252I/PT
✅ Drop-InMagkontak para sa presyo
Tingnan ang Datasheet →TJA1100HNZ Mga Spesipikasyon
| Product Type | IEEE 100BASE-T1 Automotive Ethernet PHY transceiver |
| Ethernet Standard | IEEE 100BASE-T1 |
| Rate ng Data | 100 Mbit/s |
| Port Count | 1 single-port PHY |
| Supported Cable | Unshielded twisted pair (UTP) |
| Supported Cable Length | At least 15 m |
| Host Interface | MII and RMII |
| Supply Voltage na Operasyon | 3.3 V |
| Maximum Operating Temperature | +125°C |
| Minimum Operating Temperature | -40°C |
| Automotive Qualification | AEC-Q100 |
| Packhaging | 36-pin HVQFN, 6 mm x 6 mm |
| Style ng Pagpapasok | SMD/SMT |
| Supply Voltage Range | 3.1 V to 36 V |
| Number of Transceivers | 1 |
| Uri ng Interface | MII, RMII |
| Ethernet Controller Category | Ethernet interface controller |
| Packaging | Cut Tape, Reel, or Tube |
Gabay sa Pin Configuration ng TJA1100HNZ 36-pin hvqfn, 6 mm x 6 mm
Pin configuration para sa TJA1100HNZ (36-pin hvqfn, 6 mm x 6 mm package). Ang pagnunumero ng pin, mga function, at connection diagram ay tinukoy sa datasheet ng manufacturer. Sumangguni dito para sa eksaktong footprint at mga alituntunin sa soldering.
Wala ng detalyadong pinout data na magagamit para sa TJA1100HNZ.
Sumangguni sa datasheet para sa buong pin configuration.
Tipikal na mga Gamit
TJA1100HNZ ay nararapat para sa 6 aplikasyons: Automotive IP Camera Ethernet Link, Driver Assistance Network Node, Vehicle Backbone Ethernet, Automotive Infotainment Ethernet, Vehicle Sensor Gateway, Electric Vehicle Ethernet Endpoint.
Automotive IP Camera Ethernet Link
The TJA1100HNZ is a strong fit for an in-vehicle IP camera node because NXP identifies IP camera links as an automotive use case for the TJA1100. Its 100 Mbit/s 100BASE-T1 operation over one unshielded twisted pair can reduce wiring complexity compared with a multi-pair Ethernet connection. Use the PHY between the camera’s compatible Ethernet controller and the vehicle harness, selecting MII or RMII according to the controller timing requirements. The verified 15 m cable capability is useful for vehicle-wide routing, while the -40°C to +125°C range and AEC-Q100 qualification support automotive environments. Validate EMC, protection, connector, and fault-injection requirements in the complete camera module.
Inirekomenda
Driver Assistance Network Node
For a driver-assistance Ethernet node, the TJA1100HNZ provides a 100 Mbit/s physical layer for a single UTP connection and is qualified for automotive use according to the verified product information. Its 3.3 V operating supply and automotive temperature range suit low-voltage vehicle electronics, while MII and RMII options allow integration with different host controllers. The PHY can help reduce the number of conductors required in a constrained harness, but sensor fusion and safety functions still require a compatible MAC, deterministic software startup, and validated diagnostic coverage. Review the NXP datasheet for clocking, error handling, exposed-pad thermal design, and any automotive interface requirements before production release.
Inirekomenda
Vehicle Backbone Ethernet
The TJA1100HNZ can be used at a vehicle-backbone gateway or endpoint when the network uses single-pair 100BASE-T1 links. The verified 100 Mbit/s rate and at least 15 m UTP reach are intended for automotive cable environments, and the single-port PHY keeps the physical layer compact. A backbone design should provide a compatible Ethernet MAC, correct MII or RMII timing, automotive power conditioning, and cable-side protection. Differential routing and uninterrupted ground returns are particularly important when the harness shares space with high-current loads. The PHY’s AEC-Q100 qualification and -40°C to +125°C range support the node environment, but system-level EMC and functional-safety validation remain separate engineering activities.
Inirekomenda
Automotive Infotainment Ethernet
The TJA1100HNZ is applicable to an infotainment Ethernet node that needs a compact physical-layer interface for a single twisted pair. Its 100 Mbit/s throughput matches the verified 100BASE-T1 class, and the MII or RMII host interfaces can connect to an entertainment controller with a suitable MAC architecture. The 36-pin HVQFN package supports surface-mount PCB design, while the 3.3 V nominal supply aligns with common digital vehicle rails. Designers should still account for infotainment EMI, connector transitions, cable imbalance, ESD protection, and thermal performance around the exposed pad. Because the supplied data does not specify all internal timing and pin functions, use the NXP TJA1100 datasheet as the final interface and layout authority.
Inirekomenda
Vehicle Sensor Gateway
The TJA1100HNZ can serve as the Ethernet physical layer in a vehicle sensor gateway that aggregates data from a single-pair automotive Ethernet segment. Its 100 Mbit/s operation provides a defined link rate for sensor traffic, while the at-least-15 m cable capability supports broader harness placement. MII and RMII interfaces offer host-integration choices, and the automotive qualification and temperature range align with the stated product positioning. A gateway implementation must still verify latency, packet buffering, PHY startup, link training, diagnostic reporting, and behavior under cable faults. Keep the cable-side differential pair isolated from switching regulators and route both supply and ground planes according to the manufacturer’s thermal and EMC guidance.
Inirekomenda
Electric Vehicle Ethernet Endpoint
The TJA1100HNZ is suitable for an electric-vehicle Ethernet endpoint when the design uses 100BASE-T1 over a single unshielded twisted pair. The 100 Mbit/s PHY can connect an endpoint controller to a vehicle network while reducing harness conductor count, and its -40°C to +125°C operating range covers the stated automotive temperature span. The 3.3 V supply and compact HVQFN package are useful for space-constrained ECUs, but high-current EV systems also demand careful isolation from motor-drive switching noise. Validate cable protection, common-mode energy, ground-bounce behavior, and fault recovery in the final vehicle network. The NXP datasheet should define the exact electrical limits, exposed-pad connection, and layout geometry.
Inirekomenda
Buod ng mga Inirekomendang Produkto
Impormasyon ng Talumpati sa Engineering for TJA1100HNZ — ikabit, gabay sa disenyo, at impormasyon ng pagsunod sa kautusan.
Paunawang Hanapin
Ikabit sa Mga Alternatibo
| Parametro | Ito ang Producto | TJA1100HN | TJA1101AHN/0Z | TJA1102HN/0Z | TJA1021T/20/C | LAN9252I/PT |
|---|---|---|---|---|---|---|
| Brand | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | Microchip Technology |
| Package | HVQFN-36 (6x6 mm) | HVQFN-36 (6x6 mm) - confirm against NXP datasheet | HVQFN-36 (6x6 mm) - comparison package requires confirmation | HVQFN-36 (6x6 mm) - comparison package requires confirmation | HVQFN-36 (6x6 mm) - comparison package requires confirmation | HVQFN-36 (6x6 mm) - comparison package requires confirmation |
Pangunahing mga Pagkakaiba
- Verified single-pair 100BASE-T1 positioning (kumpara saTJA1101AHN/0Z)
- MII and RMII host-interface support (kumpara saTJA1102HN/0Z)
- Automotive qualification and temperature positioning (kumpara saLAN9252I/PT)
Talaan ng Disenyo
Treat the cable-side connection as a controlled high-speed differential pair. Follow the NXP TJA1100 reference layout for pair geometry, via transitions, impedance, and return-path continuity, and avoid adding test pads or stubs unless their effects are included in signal-integrity validation. Keep the pair away from switching-regulator loops and motor-drive return currents. Exact impedance and spacing values are not present in the supplied data and must be taken from the manufacturer datasheet.
The TJA1100HNZ uses a 36-pin HVQFN package with an exposed thermal pad. Provide the recommended copper area, solder mask treatment, and thermal-via pattern from the NXP datasheet rather than relying on a generic QFN footprint. Estimated power dissipation cannot be calculated from the supplied data because total supply power, internal loss, and exposed-pad thermal resistance are not provided. Validate junction temperature across the -40°C to +125°C environmental range in the final ECU enclosure.
Decouple the PHY supply rails at the device pins using the manufacturer-recommended capacitance and topology. Because the verified product data identifies 3.3 V nominal operation but also lists a broader 3.1 V to 36 V range, distinguish interface supplies, core supplies, and automotive transient protection before connecting the part to a vehicle battery network. Use the NXP datasheet for absolute maximum ratings, startup sequencing, and supply-current limits; do not infer those values from the distributor range alone.
Impormasyon ng Pagsunod sa Kautusan
The verified distributor data identifies AEC-Q100 qualification, while RoHS, REACH, lead-free, halogen-free, and conflict-minerals status are not explicitly provided in the supplied source snippets. The comparison source mentions RoHS and REACH fields for a candidate comparison, but it does not establish the target product's compliance values.
