Microchip Technology MA320203

Overview

MA320203 from Microchip Technology is a 100-pin Motor Control Plug-in Module (PIM) designed to interface the ATSAME70 144-pin microcontroller with dsPICDEM™ MCLV-2 and MCHV-3 development boards for motor control evaluation. It provides signal conditioning via external op amps, supports Hall sensor/phase current/voltage feedback acquisition, and delivers PWM outputs (PWM1H1–PWM1L3, PWM1H2–PWM1L2, PWM1H3–PWM1L3), CAN transceiver I/O, UART, and debug LED interfaces.

For engineers reviewing the MA320203 datasheet, MA320203 pinout, MA320203 application, or MA320203 equivalent, this module enables rapid validation of ATSAME70-based three-phase motor control systems-including PFC integration, shunt-based current sensing, reconstructed neutral voltage generation, and high-voltage differential probe-safe fault monitoring on MCHV-3 platforms.

Technical Context

The MA320203 implements static pin mapping between its 100-pin connector and the ATSAME70Q21A-AN MCU's 144-pin package, routing dedicated AFE channels (e.g., PA20_AFE0_CH9_VDC_ISHUNT for DC bus current, PB03_AFE0_CH2_REC_NEUTR for reconstructed neutral), PWM outputs (PA11_PWMC0_UH, PD24_PWMC0_UL, etc.), and Hall/QEI inputs (PD13_HALLA, PD10_HALLB, PD11_HALLC). It integrates no active silicon-only passive interconnects, decoupling capacitors, crystal load networks, and pull-up/down resistors.

It supports dual development board compatibility: MCLV-2 via J4 op-amp configuration board and MCHV-3 via J14 PFC–EXT-OPAMP board. Critical safety constraints apply-non-isolated oscilloscope probes must not be used on MCHV-3 traces due to >600 VRMS common-mode voltage risk.

Key Specifications

Availability

MA320203 is available at Aetrix Electronics and suitable for motor control evaluation, PFC-integrated drive prototyping, and embedded power electronics development requiring stable component supply and full compatibility with Microchip's dsPICDEM™ ecosystem.

Supply support for MA320203 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

Microchip Technology Inc. is a U.S.-based semiconductor manufacturer specializing in microcontrollers, analog devices, and development tools for embedded control applications.

The MA320203 belongs to Microchip's ATSAME70 Motor Control Plug-in Module product line, engineered to accelerate evaluation and firmware development for high-performance three-phase motor control and digital power conversion systems using SAME70-series MCUs.

FAQ

What is the primary function of the MA320203 module?

The MA320203 is a 100-pin plug-in module that enables the ATSAME70 microcontroller to interface directly with dsPICDEM™ MCLV-2 and MCHV-3 development boards for motor control evaluation. It routes critical signals-including PWM outputs, Hall sensor inputs, phase current feedback, DC bus voltage/current sensing, and PFC control signals-without onboard active circuitry. The MA320203 serves strictly as a hardware adapter and signal distribution platform.

Which development boards is the MA320203 compatible with?

The MA320203 is explicitly designed for use with two Microchip development platforms: the dsPICDEM™ MCLV-2 (DM330021-2) and dsPICDEM™ MCHV-3 (DM330023-3). Both boards feature 100-pin PIM connectors. For MCLV-2, an external op amp configuration board must be inserted at header J4; for MCHV-3, the PFC–EXT-OPAMP board is required at header J14. No other development boards are supported per official documentation.

Does the MA320203 include any integrated microcontroller or active ICs?

No-the MA320203 contains no microcontroller, processor, or active semiconductor components. It is a passive interconnect module composed of PCB traces, decoupling capacitors (0.1 µF and 2.2 µF), crystal load networks (12 MHz and 32.768 kHz), pull-up/pull-down resistors (4.7 kΩ), and standard headers. All intelligence and signal processing reside in the host ATSAME70 MCU mounted on the target development board.

What safety precautions apply when using the MA320203 with the MCHV-3 board?

When using the MA320203 with the dsPICDEM™ MCHV-3 board, non-isolated oscilloscope probes must not be connected to any board traces. This restriction arises from the presence of >600 VRMS common-mode voltage on high-voltage sections. Engineers must instead use a high-voltage differential probe rated above 600 VRMS common-mode to avoid permanent hardware damage. This warning is explicitly stated in the MA320203 information sheet.

How does the MA320203 handle analog feedback signals like motor phase current and DC bus voltage?

The MA320203 routes analog feedback signals-including PIM_IMOTOR1/PIM_IMOTOR2 (phase currents), PIM_IMOTOR_SUM (DC bus current), PIM_V_M1–PIM_V_M3 (motor phase voltages), and PIM_VBUS (downscaled DC bus voltage)-to dedicated AFE input pins on the ATSAME70 MCU (e.g., PA20_AFE0_CH9_VDC_ISHUNT, PA17_AFE0_CH6_Vph, PA18_AFE0_CH7_VBUS). These signals remain unconditioned on the MA320203 itself; external op amp boards provide required gain, filtering, and isolation before reaching the module's input headers.