Monolithic Power Systems Inc. TBMA330-Q-RD-01A

Overview

TBMA330-Q-RD-01A from Monolithic Power Systems is a long-format (LT) evaluation board designed specifically for the MA330 MagAlpha magnetic position sensor. It provides side-shaft and end-of-shaft mounting configurations, supports SPI interface (CS/SCLK/MISO/MOSI), and delivers 3.3V-supplied operation with decoupling capacitors and unpopulated 2.54mm dual-row connectors. It enables rapid functional validation of MA330 in motor commutation and incremental encoder applications.

For engineers reviewing the TBMA330-Q-RD-01A datasheet, TBMA330-Q-RD-01A pinout, TBMA330-Q-RD-01A application, or TBMA330-Q-RD-01A equivalent, this board serves as a hardware reference platform to verify MA330 sensor behavior-including A/B/Z quadrature outputs, PWM, and test pin access-under real-world mechanical alignment and signal integrity conditions.

Technical Context

The TBMA330-Q-RD-01A implements Board Type 1 architecture per the TBMA User Guide Rev. 1.2, matching the schematic and pinout of TBMA300-Q-LT and TBMA100-Q-LT variants. It routes all core SPI signals (CS, SCLK, MISO, MOSI), VDD (3.3V), GND, VFLASH (3.9V flash supply), and TEST to CN1, while CN2 exposes U/V/W motor commutation outputs and A/B/Z incremental encoder outputs plus PWM and TEST pins.

This board type integrates two 1µF X6S 0402 ceramic decoupling capacitors (C1, C4), one optional 1µF capacitor (C2), and one optional 100nF X7R 0402 capacitor (C3), all sourced from Murata. Connectors CN1 and CN2 are unpopulated 8-position 2.54mm receptacles compatible with Wurth 690367280876 or TE Connectivity 7-2178711-8.

Key Specifications

Availability

TBMA330-Q-RD-01A is available at Aetrix Electronics and suitable for servo drives, robotics, and BLDC motor commutation requiring stable component supply, quick-turn evaluation, and traceable sourcing of MagAlpha sensor development hardware.

Supply support for TBMA330-Q-RD-01A 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.

TBMA330-Q-RD-01A belongs to the TBMA test board product line, engineered to accelerate evaluation of MagAlpha magnetic position sensors in motion control systems where precise angular measurement and robust EMI immunity are critical.

FAQ

What sensor is pre-mounted on the TBMA330-Q-RD-01A board?

The TBMA330-Q-RD-01A board has the MA330 MagAlpha magnetic position sensor permanently mounted per Type 1 LT layout. This matches the mechanical and electrical configuration defined in Table 1 of the TBMA User Guide Rev. 1.2 for MA330 evaluation.

Does the TBMA330-Q-RD-01A include populated connectors?

No. CN1 and CN2 are unpopulated 2.54mm 8-position receptacle footprints per Table 2 BOM. Users must solder compatible connectors such as Wurth 690367280876 or TE Connectivity 7-2178711-8 to enable external interfacing.

Which output signals are accessible on CN2 of the TBMA330-Q-RD-01A?

CN2 provides A, B, Z (quadrature encoder), U, V, W (motor commutation), PWM, and TEST signals - all directly routed from the MA330's dedicated output pins as specified in Table 3 of the TBMA User Guide Rev. 1.2.

Is VFLASH required for normal MA330 operation on this board?

No. VFLASH (CN1.3) supplies 3.9V only during firmware flashing operations. During standard sensor operation, it remains unpowered - isolating flash circuitry from runtime analog/digital paths to prevent noise coupling.

Can the TBMA330-Q-RD-01A be used with the EVKT-MagAlpha-MagDiff evaluation kit?

Yes. The TBMA330-Q-RD-01A is explicitly listed as compatible with the EVKT-MagAlpha-MagDiff kit per the "Compatibility" section of the TBMA User Guide Rev. 1.2, enabling plug-and-play integration for differential magnetic field testing.

What capacitor types and values are populated on the TBMA330-Q-RD-01A?

The board includes two populated 1µF/10V/X6S/0402 ceramic capacitors (C1, C4, Murata GRM155C81A105KA12D). C2 (1µF, optional) and C3 (100nF, optional) positions are unpopulated but available for user customization per application noise requirements.