Monolithic Power Systems Inc. TBMA310-Q-LT-01A

Overview

TBMA310-Q-LT from Monolithic Power Systems is a long-format (LT) evaluation board designed specifically for the MA310 MagAlpha magnetic position sensor. It supports both side-shaft and end-of-shaft mounting configurations, provides SPI interface access (VDD, GND, CS, SCLK, MISO, MOSI), and includes test points and decoupling capacitors (1 µF ×2, 100 nF ×1). It enables rapid functional validation of MA310 in motor commutation and incremental encoder applications.

For engineers reviewing the TBMA310-Q-LT datasheet, TBMA310-Q-LT pinout, TBMA310-Q-LT application, or TBMA310-Q-LT equivalent, this board delivers plug-and-play compatibility with EVKT-MagAlpha-MagDiff and EVKT-MACOM kits, direct sensor-level signal probing, and configurable I/O routing for angle, speed, and error diagnostics.

Technical Context

The TBMA310-Q-LT is a Type 2 board per the official TBMA User Guide Rev. 1.2, matching the MA310 sensor's pinout and electrical interface requirements. It routes all essential SPI signals (CS, SCLK, MISO, MOSI), power (VDD, GND), and dedicated I/Os (IO1–IO6, MGH, MGL) to dual 8-pin 2.54 mm headers CN1 and CN2.

It implements passive decoupling (1 µF ceramic on VDD, optional 100 nF on MGH/MGL) and leaves connectors unpopulated by default-allowing users to select mating connectors (e.g., Wurth 690367280876 or TE Connectivity 7-2178711-8) based on system integration needs.

Key Specifications

Availability

TBMA310-Q-LT is available at Aetrix Electronics and suitable for servo drives, robotics, and BLDC motor commutation requiring stable component supply, quick-turn evaluation, and repeatable sensor characterization under varying magnetic field conditions.

Supply support for TBMA310-Q-LT includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

Monolithic Power Systems (MPS) is a fabless semiconductor company specializing in high-performance power management and sensing solutions, with design centers across Asia and North America.

TBMA310-Q-LT belongs to the MagAlpha evaluation board product line, engineered to accelerate development of contactless angular position sensing systems in motion control and automotive subsystems.

FAQ

Does TBMA310-Q-LT include populated connectors?

No. Per the TBMA User Guide Rev. 1.2, CN1 and CN2 are unpopulated 8-position 2.54 mm receptacle footprints. Users must solder compatible connectors (e.g., Wurth 690367280876 or TE Connectivity 7-2178711-8) based on their cabling and host interface requirements.

Which MagAlpha sensor does TBMA310-Q-LT support?

TBMA310-Q-LT is explicitly designated for the MA310 MagAlpha magnetic position sensor, as confirmed in Table 1 of the TBMA User Guide Rev. 1.2. It matches the MA310's pin mapping, supply requirements (3.3 V), and I/O capability (IO1–IO6, MGH, MGL).

Can TBMA310-Q-LT be used with EVKT-MagAlpha-MagDiff?

Yes. The TBMA User Guide Rev. 1.2 states TBMA boards-including TBMA310-Q-LT-are compatible with the EVKT-MagAlpha-MagDiff evaluation kit, enabling seamless connection via standard headers and shared firmware/toolchain support for angle measurement and diagnostics.

What is the purpose of the TEST pin on CN1.8?

CN1.8 is labeled TEST in Table 5 of the TBMA User Guide Rev. 1.2 and serves as a general-purpose test point tied directly to the MA310's TEST pin. It supports debug functions such as internal register dump triggering or factory calibration mode entry, per the MA310 datasheet.

Are decoupling capacitors pre-soldered on TBMA310-Q-LT?

Yes. The board includes two populated 1 µF X6S 0402 ceramic capacitors (C1, C2) on the VDD rail and one optional 100 nF X7R 0402 capacitor (C2 in Type 2 layout) near MGH/MGL, as specified in Table 4 of the TBMA User Guide Rev. 1.2.

Is TBMA310-Q-LT RoHS-compliant?

Yes. All MPS parts, including TBMA310-Q-LT, are lead-free, halogen-free, and compliant with the RoHS directive, as stated in the "All MPS parts are lead-free, halogen-free, and adhere to the RoHS directive" section of the TBMA User Guide Rev. 1.2.