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

Overview

TBMA782-Q-LT-00A from Monolithic Power Systems is a long-format (LT) evaluation board designed specifically for the MA782GGU MagAlpha magnetic position sensor. It supports both side-shaft and end-of-shaft mounting configurations, provides 3.3V power and SPI interface access via two unpopulated 8-pin 2.54mm connectors, and integrates decoupling capacitors (1µF and optional 100nF) for stable sensor operation in motor commutation and encoder applications.

For engineers reviewing the TBMA782-Q-LT-00A datasheet, TBMA782-Q-LT-00A pinout, TBMA782-Q-LT-00A application, or TBMA782-Q-LT-00A equivalent, this board enables rapid functional validation of the MA782GGU sensor's angle measurement, data validity signaling, auto-power cycling, and non-volatile memory features without custom PCB design.

Technical Context

This Type 4 TBMA board implements dedicated signal routing for the MA782GGU's EN (active-low enable), ND (new data flag), DV (data valid), ASC (auto-power cycling mode), NVM (non-volatile memory output), and MGL (magnetic level low) pins - all accessible through CN2. The board uses 0Ω resistors (R1 populated, R2 not) to configure VDDIO supply options and includes Murata GRM155C81A105KA12D 1µF X6S 0402 capacitors for VDD decoupling.

It interfaces directly with the EVKT-MagAlpha-MagDiff evaluation kit and maintains mechanical compatibility with MACOM-based test setups. The unpopulated 2.54mm connectors (Wurth 690367280876 or TE Connectivity 7-2178711-8) allow flexible cabling while preserving signal integrity for SPI clock (SCLK), chip select (CS), MISO/MOSI, and test/debug signals.

Key Specifications

Availability

TBMA782-Q-LT-00A is available at Aetrix Electronics and suitable for servo drives, robotics, BLDC motor commutation, and incremental encoder development requiring stable component supply and fast-turn evaluation capability.

Supply support for TBMA782-Q-LT-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 for industrial, automotive, and computing applications.

TBMA782-Q-LT-00A belongs to the TBMA test board product line, engineered to accelerate evaluation of MagAlpha magnetic position sensors in real-world motor control and angular feedback systems.

FAQ

What sensor does TBMA782-Q-LT-00A support?

TBMA782-Q-LT-00A is a Type 4 long-format evaluation board designed exclusively for the MA782GGU MagAlpha magnetic position sensor. It routes all key I/Os including EN, ND, DV, ASC, NVM, and MGL, and matches the sensor's pinout, power requirements, and layout constraints as defined in the TBMA User Guide Rev. 1.2.

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

No - TBMA782-Q-LT-00A ships with two unpopulated 8-position 2.54mm receptacle footprints (CN1 and CN2). Users must solder compatible connectors such as Wurth 690367280876 or TE Connectivity 7-2178711-8 to interface with host controllers or evaluation kits.

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

TBMA782-Q-LT-00A is Type 4, distinguished by its support for MA782GGU-specific functions: EN input, ND/DV status flags, ASC mode control, NVM output, and MGL signal. Unlike Type 1 (U/V/W/PWM outputs) or Type 6 (SSI/PWM/ABZ), it omits motor commutation and incremental encoder outputs to prioritize configurability and low-power operation.

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

Yes - the TBMA782-Q-LT-00A is explicitly listed as compatible with the EVKT-MagAlpha-MagDiff evaluation kit. Its pin mapping, connector spacing, and signal definitions align with the kit's interface requirements, enabling plug-and-play integration for angle measurement validation.

What are the required external components to operate TBMA782-Q-LT-00A?

To operate TBMA782-Q-LT-00A, users must provide: (1) a 3.3V power source connected to CN1.1 (VDD) and CN1.2 (GND); (2) an SPI master (e.g., MCU or logic analyzer) wired to CS, SCLK, MISO, MOSI, and TEST; (3) optional 100nF capacitor on C2; and (4) appropriate diametrically magnetized magnet (e.g., MPS MAG10 series) positioned per MA782GGU's sensing geometry.