Microchip Technology MA320024

Overview

MA320024 from Microchip Technology is a 100-pin Motor Control Plug-in Module (PIM) designed to demonstrate PIC32MK 100-pin motor control microcontrollers-specifically the PIC32MK1024MCF100-in three compatible development platforms: dsPICDEM MCLV-2, MCHV-2, and MCHV-3. It supports both external and internal on-chip op amp configurations for phase current and DC bus sensing, with dedicated PWM, Hall/QEI, fault, and analog signal routing.

For engineers reviewing the MA320024 datasheet, MA320024 pinout, MA320024 application, or MA320024 equivalent, this module enables rapid validation of motor control firmware, analog signal conditioning, and real-time current/voltage feedback topologies in brushless DC and PMSM drives using Microchip's PIC32MK family.

Technical Context

The MA320024 implements a fixed 100-pin interface mapping between the PIC32MK1024MCF100 MCU and host development boards, preserving all critical motor control signals-including six high-side/low-side PWM pairs (PWM1H/L through PWM3H/L), three Hall sensor inputs (HALLA/B/C), QEI channels (A/B/INDX/HOME), and analog monitoring paths for phase voltages (PIM_V_M1–M3), DC bus voltage (PIM_VBUS), and shunt-based currents (PIM_IA+, PIM_IB+, PIM_IBUS±).

It integrates configurable op amp circuitry with passive RC networks supporting differential amplification and low-pass filtering for current sensing, with VREF biasing at AVDD/2. The module allows selection between internal DAC2-generated reference (via R23/R24 configuration) and external board-supplied reference, enabling flexible analog front-end calibration across test setups.

Key Specifications

Availability

MA320024 is available at Aetrix Electronics and suitable for motor control evaluation, embedded firmware prototyping, and industrial drive reference design requiring stable component supply and full compatibility with Microchip's dsPICDEM ecosystem.

Supply support for MA320024 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 MA320024 belongs to Microchip's PIC32MK Motor Control PIM product line, engineered specifically to accelerate evaluation and firmware development for high-performance BLDC and PMSM motor control systems using integrated op amps and real-time peripherals.

FAQ

What is the primary function of the MA320024 module?

The MA320024 is a plug-in module that interfaces the PIC32MK1024MCF100 motor control MCU with Microchip's dsPICDEM development boards. It provides standardized routing for PWM, Hall/QEI, analog current/voltage sensing, and communication interfaces-enabling rapid validation of motor control algorithms without custom PCB design. The MA320024 itself contains no active logic; it is a passive interposer with configured analog front-end components.

Which development boards are compatible with the MA320024?

The MA320024 is explicitly designed for use with three Microchip development platforms: dsPICDEM MCLV-2 (DM330021-2), dsPICDEM MCHV-2 (DM330023-2), and dsPICDEM MCHV-3 (DM330023-3). All three support the 100-pin PIM interface, and jumper configurations (e.g., J12–J14 positions on MCHV-2/3) must be set per the MA320024 documentation to ensure correct op amp mode selection and signal routing.

How does the MA320024 handle analog current sensing?

The MA320024 incorporates three discrete op amp circuits (OA1–OA3) with configurable gain and filter bandwidth via resistor-capacitor networks (R1–R17, C1–C9). Each op amp conditions shunt-based current signals-PIM_IA+, PIM_IB+, and PIM_IBUS±-into differential inputs for the PIC32MK's ADC. The reference voltage (VREF = AVDD/2) enables bidirectional current measurement using unipolar op amps, and VREF source can be selected as internal (DAC2-driven) or external.

Does the MA320024 include onboard microcontroller firmware?

No, the MA320024 is a hardware interposer module only-it contains no firmware, memory, or programmable logic. It routes signals between the PIC32MK1024MCF100 MCU (soldered onto the module) and the host development board. Firmware execution resides entirely on the PIC32MK device; the MA320024 serves solely as a signal-mapped interface platform for evaluation and testing.

Can the MA320024 be used with other PIC32MK variants beyond PIC32MK1024MCF100?

The MA320024 is mechanically and electrically optimized for the PIC32MK1024MCF100 in 100-pin TQFP, as confirmed by pin mapping in Table 1 and schematic Figure 4. While other 100-pin PIC32MK devices may share similar pinouts, Microchip's documentation specifies the MA320024 exclusively for the PIC32MK1024MCF100. Use with alternate variants requires verification of pin function alignment, peripheral availability, and op amp signal routing compatibility.