TMC8462A-BA - EtherCAT Slave Controller, 2x 100M PHY, 121-BGA | ADI
Référence : TMC8462A-BA ✓ Actif| Qté | Prix unitaire | Total |
|---|---|---|
| 1 | $43.88 | $43,88 |
| 10 | $40.21 | $402,10 |
| 100 | $35.95 | $3 595,00 |
| 500 | $32.5 | $16 250,00 |
| 1 000 | $29.8 | $29 800,00 |
TMC8462A-BA Présentation
An EtherCAT slave controller is the silicon block responsible for handling the deterministic EtherCAT protocol on behalf of the application processor, offloading real-time mailbox and cyclic datagram processing so the host MCU can focus on the motion or I/O task itself. The TMC8462A-BA sits inside an industrial fieldbus hierarchy above the 100BASE-TX PHY and below the application MCU, and ultimately below higher-level Industrial Ethernet protocols such as PROFINET, EtherNet/IP, and CIP Motion - it is the lowest layer that interprets EtherCAT frames natively. Compared with discrete EtherCAT slave designs, it eliminates an external PHY, an external auxiliary regulator, and a discrete 24V-tolerant I/O buffer.
Key features of the TMC8462A-BA include two integrated 100-Mbit Ethernet PHYs that drive a daisy-chained EtherCAT port 0/port 1 topology, a built-in dual switch-mode power supply block, eight high-voltage (24V-tolerant) digital I/Os for industrial sensors and actuators, a watchdog timer, a PWM unit, and SPI/I2C master interfaces. The integrated PHYs remove the need for external 100BASE-TX magnetics-side circuitry, and 24V-tolerant I/Os allow direct connection to industrial sensors without a separate level shifter.
Architecturally, the TMC8462A-BA combines the EtherCAT Processing Unit (EPU), two 100BASE-TX PHYs, an Ethernet MAC, a digital I/O bank, and a power management block on a single die. The internal switch-mode regulator generates the lower rails required for the digital core and PHYs from the incoming 5-35 V bus, simplifying the bill of materials and reducing PCB area versus a discrete EtherCAT solution.
Typical applications for the TMC8462A-BA include industrial motor drives, stepper and servo controllers using EtherCAT, distributed I/O modules, sensor/actuator nodes, robotic sub-systems, and CNC peripherals where EtherCAT slave controllers are required. It is also used as the slave side of the TMC8462A-EVAL evaluation kit.
When designing with the TMC8462A-BA, ensure the upstream 24V supply is decoupled with low-ESR bulk capacitance near the BGA and that MDI traces to the magnetics are length-matched, as required by 100BASE-TX. The host SPI clock should not exceed the datasheet maximum, and unused high-voltage I/Os must be tied to a defined logic level to avoid floating inputs in the field.
This page synthesizes distributor pricing, drop-in same-package variants, datasheet PDF location, and application design notes not all collected in one place on the manufacturer datasheet alone.
Alternatives de remplacement direct pour TMC8462A-BA — même boîtier, compatible broche à broche. Les références à boîtier différent nécessitant une retouche du PCB sont exclues.
Outil de comparaison rapide — sélectionnez des références alternatives pour une comparaison côte à côte :
TMC8460-BA
✅ Remplacement direct📋 Alternative de référence (hors catalogue)
TMC8461-BA
✅ Remplacement direct📋 Alternative de référence (hors catalogue)
TMC8462A-BA Spécifications
| Product Type | EtherCAT Slave Controller |
| Tension d'alimentation | 5 V to 35 V |
| Integrated Ethernet PHYs | 2 x 100-Mbit (100BASE-TX) |
| Host Interfaces | SPI, I2C, MII |
| High-Voltage Digital I/Os | 8 x 24V-tolerant inputs/outputs |
| Integrated Power Supply | Dual switch-mode regulator |
| On-chip Peripherals | Watchdog, PWM, SPI/I2C master |
| Protocol Support | EtherCAT slave (deterministic, real-time) |
| Boîtier | 121-ball BGA, 9 mm x 9 mm |
| Type de montage | Surface Mount |
| Température de fonctionnement | -40C to +85C (industrial) |
| Statut RoHS | Compliant |
| Datasheet Revision | V1.10 (2022-Aug-29) |
| Evaluation Board | TMC8462A-EVAL |
| Manufacturer | Analog Devices (formerly Trinamic Motion Control) |
Guide de configuration des broches du TMC8462A-BA 121-ball bga, 9 mm x 9 mm
Configuration des broches du TMC8462A-BA (boîtier 121-ball bga, 9 mm x 9 mm). La numérotation des broches, les fonctions et les schémas de connexion sont définis dans la fiche technique du fabricant. Consultez-la pour l'empreinte exacte et les directives de soudage.
Aucune donnée de brochage détaillée disponible pour TMC8462A-BA.
Consultez la fiche technique pour la configuration complète des broches.
Applications typiques
TMC8462A-BA convient pour 6 applications: Industrial Stepper Drive EtherCAT Node, Distributed I/O Module (EtherCAT Slave), Robotic Sub-system (Cobot / SCARA arm), CNC Peripheral (Spindle / Tool Changer), Sensor / Actuator Fieldbus Node, EVAL / Reference Design Bring-up.
Industrial Stepper Drive EtherCAT Node
The TMC8462A-BA is a natural fit for industrial stepper and servo drives that need EtherCAT connectivity, because its 24V-tolerant digital I/Os can directly interface with industrial limit-switch and enable inputs without an external level shifter. The integrated dual 100-Mbit PHYs allow the drive to be daisy-chained on the EtherCAT bus without an external PHY, while the on-chip watchdog and PWM unit coordinate with a host MCU running the motion loop. Placed on a 4-layer PCB with proper MDI trace matching per 100BASE-TX, the part supports typical stepper cycle rates and EtherCAT distributed-clock synchronization as required by the CAN-over-EtherCAT (CoE) profile.
Recommandé
Distributed I/O Module (EtherCAT Slave)
Compact EtherCAT digital and analog I/O terminals benefit from the TMC8462A-BA's combination of two integrated PHYs and 24V-tolerant I/Os in a single 121-BGA package, reducing part count versus discrete PHY + controller + level-shifter designs. The host SPI channel lets a small Cortex-M0 class MCU poll mailbox status and update outputs synchronously to the EtherCAT distributed clock. Placed in a DIN-rail-mounted fieldbus terminal, the part supports typical industrial I/O refresh rates (sub-millisecond) and is qualified for the -40C to +85C temperature range required inside sealed cabinets.
Recommandé
Robotic Sub-system (Cobot / SCARA arm)
Cobot and SCARA arm controllers benefit from real-time EtherCAT networking that the TMC8462A-BA implements directly on-chip. Its on-chip SPI/I2C master blocks let the controller read joint encoders and drive local servo amplifiers over a single host SPI connection, eliminating a backplane processor in each joint node. In a typical 6-axis cobot, six TMC8462A-BA-based joint nodes daisy-chain on a single EtherCAT segment with deterministic cycle times measured in the hundreds of microseconds, well within the CoE cycle envelope.
Recommandé
CNC Peripheral (Spindle / Tool Changer)
CNC peripheral nodes such as spindle controllers, tool changers, and coolant valves use EtherCAT for deterministic response, and the TMC8462A-BA's 24V I/O bank lets it directly drive 24V solenoids and read 24V proximity sensors without external buffers. The integrated dual switch-mode regulator derives internal rails from the 24V CNC backplane, simplifying power-tree design. Placed near the spindle VFD, the part's watchdog and PWM peripherals can be repurposed for local closed-loop control as well as EtherCAT communication.
Recommandé
Sensor / Actuator Fieldbus Node
Stand-alone EtherCAT sensor and actuator nodes - pressure transmitters, valve manifolds, and flow meters - benefit from the TMC8462A-BA's compact single-chip integration, where the dual-PHY chain-on feature lets multiple nodes share a single EtherCAT segment without an external switch. With a Cortex-M0 host attached to the SPI bus, the part handles all protocol processing while the host does sensor signal conditioning. Per the datasheet typical performance, distributed clock jitter stays below the +/-1us required by most process-control sensors, and the on-chip watchdog adds safety integrity against host lock-ups.
Recommandé
EVAL / Reference Design Bring-up
Engineers validating EtherCAT slave designs use the TMC8462A-EVAL board with a TMC8462A-BA fitted to bring up a real EtherCAT node in minutes, exercising all datasheet features including PDO/SDO mailbox, distributed clocks, and the on-chip SPI/I2C master. The Eselsbruecke bridge board exposes all host signals for oscilloscope probing. This application is the canonical first step before designing a custom PCB, and is documented in the Analog Devices evaluation kit landing page.
Recommandé
Récapitulatif des produits recommandés
Données de référence d'ingénierie pour TMC8462A-BA — comparaison, recommandations de conception et informations de conformité.
Guide de sélection
Comparaison avec les alternatives
| Paramètre | Ce produit | TMC8460-BA | TMC8461-BA |
|---|---|---|---|
| Brand | Analog Devices | Analog Devices | Analog Devices |
| Package | 121-BGA (9x9 mm) | 121-BGA (same) | 121-BGA (same) |
| Integrated 100-Mbit PHYs | 2 (dual PHY) | 1 (single PHY) | 1 (single PHY) |
| EtherCAT Support | Yes (slave controller) | Yes | Yes |
| Supply Voltage | 5V to 35V | 5V to 35V | 5V to 35V |
| 24V-Tolerant I/Os | Yes (integrated) | Yes | Yes (reduced count) |
| On-chip Power Management | Dual switch-mode regulator | Dual switch-mode regulator | Dual switch-mode regulator |
| Host Interface | SPI / I2C / MII | SPI / I2C / MII | SPI / I2C |
Principaux différenciateurs
- Dual integrated 100-Mbit Ethernet PHYs eliminate external PHY BOM (vs TMC8460-BA)
- 24V-tolerant digital I/O bank on-chip (vs TMC8461-BA)
- Integrated dual switch-mode regulator (vs Discrete EtherCAT solutions)
Notes de conception
The 121-ball BGA requires a 4-layer PCB with a continuous ground plane and dedicated power planes for the analog and digital rails. Place the 100BASE-TX MDI traces to the magnetics on the top layer with length matching (per 100BASE-TX) and route them over a continuous ground pour to keep return paths short. Place the 24V bulk decoupling capacitor as close as physically possible to the BGA supply balls; this is critical because the on-chip switch-mode regulator's switching transients will otherwise couple back into the PHY analog rails.
Estimated: with the internal switch-mode regulator operating at full load (drawing ~500 mA of internal current), total on-die dissipation is roughly 1.5W at 24V input. On the 121-BGA 9x9 mm package with the recommended 4-layer thermal via array under the BGA, theta_JA is on the order of 20 C/W, giving about 30C rise above ambient. For enclosed industrial cabinets at 70C ambient, junction temperature stays within the 85C industrial limit. Adding a thermal pad cuts dissipation margin further; confirm with the manufacturer's thermal model in the datasheet before designing sealed enclosures.
Do not route SPI traces longer than 50 mm without a series terminator; signal integrity at the SPI clock the host MCU drives into the TMC8462A-BA must hold a clean edge. Unused 24V-tolerant I/Os MUST be tied to a defined logic level (either GND through 10k or to a known logic rail) - floating inputs at industrial ambient temperatures can latch the I/O bank. Finally, do not assume drop-in compatibility between the TMC8462A-BA and the Beckhoff ET1100 - they share functional intent but have completely different pinouts and require a PCB redesign.
Informations de conformité
RoHS and REACH compliance per Analog Devices product page. Not AEC-Q100 qualified - this is an industrial-grade part, not automotive-grade. Halogen-free status not explicitly listed in provided web data.
