Monolithic Power Systems Inc. TBMA782-Q-RD-00A

Overview

TBMA782-Q-RD-00A from Monolithic Power Systems is a dedicated evaluation board for the MA782GGU MagAlpha magnetic position sensor, supporting side-shaft and end-of-shaft mounting configurations. It provides 3.3V power supply, SPI interface (CS/SCLK/MISO/MOSI), test pin access, and configurable I/Os including EN, ND, DV, ASC, NVM, and MGL - enabling rapid functional validation and performance characterization in motor control and encoder applications.

For engineers reviewing the TBMA782-Q-RD-00A datasheet, TBMA782-Q-RD-00A pinout, TBMA782-Q-RD-00A application, or TBMA782-Q-RD-00A equivalent, this board delivers direct hardware access to MA782 sensor outputs (ND, DV, ASC, NVM) and control signals (EN), with documented connector mapping, decoupling capacitor layout, and compatibility with EVKT-MagAlpha-MagDiff and EVKT-MACOM kits.

Technical Context

This Type 4 TBMA board hosts the MA782GGU sensor in a long-format (LT) edge-mounted configuration, featuring dual 8-pin 2.54mm headers (CN1/CN2) for host system interfacing. It implements VDDIO support (1.8V–3.3V) for I/O voltage flexibility and includes populated 1µF ceramic decoupling capacitors (C1) plus optional 100nF (C2) per MPS BOM.

The board supports active-mode enable via CN2.1 (EN input), real-time status reporting through ND (new data) and DV (data valid) outputs on CN2.2/CN2.3, and non-volatile memory access via CN2.6 (NVM output). MGL (magnetic level low) is available on CN2.7 per MA782 functionality, while ASC (auto-power cycling mode) is routed to CN2.4 as an input.

Key Specifications

Availability

TBMA782-Q-RD-00A 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 TBMA782-Q-RD-00A 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.

TBMA782-Q-RD-00A belongs to the TBMA family of MagAlpha sensor evaluation boards, engineered specifically to accelerate development of magnetic position sensing systems in motion control, automotive, and industrial automation.

FAQ

What sensor is integrated on the TBMA782-Q-RD-00A board?

The board integrates the MA782GGU MagAlpha magnetic position sensor - a high-resolution, contactless angle sensor with SPI interface, programmable output modes, and built-in diagnostics. It is pre-mounted and electrically validated per MPS Type 4 board specifications.

Does TBMA782-Q-RD-00A include connectors?

No - the board ships with two unpopulated 2.54mm 8-position receptacle footprints (CN1 and CN2), compatible with Wurth 690367280876 or TE Connectivity 7-2178711-8 connectors. Connectors are not included but are specified in the BOM for user-sourced assembly.

How does TBMA782-Q-RD-00A differ from other TBMA board types?

It is Type 4, uniquely configured for the MA782GGU with VDDIO support, EN/ND/DV/ASC/NVM/MGL signal routing, and omission of MGH and redundant pins present in Types 3 or 5. Its schematic and pinout align exclusively with MA782's functional I/O set, unlike Type 1 (U/V/W/A/B/Z/PWM) or Type 6 (SSI/PWM).

Can TBMA782-Q-RD-00A be used with the EVKT-MagAlpha-MagDiff kit?

Yes - the board is explicitly listed as compatible with the EVKT-MagAlpha-MagDiff evaluation kit, enabling plug-and-play connection for differential magnetic field testing, sensor calibration, and comparative analysis against reference designs.

What mounting configurations does TBMA782-Q-RD-00A support?

It supports both side-shaft and end-of-shaft configurations due to its long (LT) mechanical format and edge-mounted sensor placement. This allows flexible magnet positioning - radial coupling for side-shaft or axial coupling for end-of-shaft - without board redesign.

Is firmware or software provided with TBMA782-Q-RD-00A?

No standalone firmware is included. Users interface via standard SPI commands defined in the MA782GGU datasheet. MPS provides reference code examples, register maps, and GUI tools through the MagAlpha Design Center portal for configuration and data capture.