Microchip Technology MA330050-2

Overview

MA330050-2 from Microchip Technology is a dsPIC33CK64MP105 Motor Control Plug-In Module (PIM) designed for internal op amp–based motor current sensing and control. It implements single-motor field-oriented control (FOC) and single-stage boost PFC using the dsPIC33CK64MP105 DSC's integrated op amps, high-resolution PWM, and 12-bit ADC. The module interfaces via a 100-pin PIM header to compatible development boards including dsPICDEM MCLV-2, MCHV-2, and MCHV-3.

For engineers reviewing the MA330050-2 datasheet, MA330050-2 pinout, MA330050-2 application, or MA330050-2 equivalent, this page provides verified hardware interface details, op amp configuration options, PIM-to-dsPIC33CK64MP105 pin mapping, compatibility with motor control development boards, and design guidance for current-sensing amplifier networks using OA1–OA3.

Technical Context

The MA330050-2 implements three configurable internal op amp channels (OA1–OA3) routed to shunt resistor inputs (IA+, IBUS+, IB+) for motor phase current amplification. Each op amp supports differential amplifier and low-pass filter configurations using on-board passive components (e.g., R1–R4, C8–C10 for OA2), with common-mode f_−3dB ≈ 340 kHz and differential-mode f_−3dB ≈ 65 kHz for OA2.

It maps the 48-pin dsPIC33CK64MP105 TQFP device to a 100-pin PIM footprint, exposing PWM outputs (PWM1H/L through PWM4H), analog inputs (AN0–AN18), op amp I/O pins (OA1IN±, OA1OUT, etc.), and power domains (AVDD/AVSS, DVDD/DGND). Analog ground (AGND) is shorted to digital ground (DGND) via 0 Ω resistor R28.

Key Specifications

Availability

MA330050-2 is available at Aetrix Electronics and suitable for motor control evaluation, FOC algorithm development, and PFC control prototyping requiring stable component supply and full compatibility with Microchip's dsPIC33CK64MP105 ecosystem.

Supply support for MA330050-2 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, DSCs, analog products, and development tools for embedded control applications.

The MA330050-2 belongs to Microchip's dsPIC33 Motor Control PIM family, engineered to demonstrate and accelerate development of high-performance motor control systems using internal analog peripherals and high-resolution PWM.

FAQ

What is the primary function of the MA330050-2?

The MA330050-2 is a dsPIC33CK64MP105 Motor Control Plug-In Module that enables rapid evaluation and development of motor control algorithms-specifically field-oriented control (FOC) and single-stage boost PFC-using the device's internal op amps for current sensing. It is not a standalone IC but a hardware platform that exposes and configures the dsPIC33CK64MP105's analog and PWM resources for motor drive applications.

Which development boards are compatible with the MA330050-2?

The MA330050-2 is compatible with dsPICDEM MCLV-2 (all revisions), dsPICDEM MCHV-2 (all revisions), and dsPICDEM MCHV-3 (all revisions). It is explicitly listed as incompatible with earlier versions: DM330023 (MCHV), DM330021 (MCLV), and DV330100 (Low-Voltage Bundle).

How are the internal op amps configured on the MA330050-2?

The MA330050-2 routes OA1, OA2, and OA3 inputs and outputs to test points and shunt connections (IA+, IBUS+, IB+). Each op amp has an associated passive network (e.g., R1–R4, C8–C10 for OA2) enabling differential amplification and low-pass filtering. OA1 requires removal of R25–R27 jumpers to activate; OA2 and OA3 are enabled by default via 0 Ω resistors R7 and R14 respectively.

What is the role of the 0 Ω resistors (e.g., R25, R26, R27, R7, R14) on the MA330050-2?

These 0 Ω resistors configure signal routing paths: R25–R27 enable OA1 input access to the IBUS shunt; R7 enables OA2 output connection to PIM:22; R14 enables OA3 output connection to PIM:21. Removing or populating them alters op amp usage-for example, leaving R25–R27 in place disables OA1 and preserves PFC capability on MCHV-2/MCHV-3 boards.

Does the MA330050-2 include its own microcontroller or rely on the host board?

The MA330050-2 contains the dsPIC33CK64MP105 DSC as its core controller-it is a self-contained plug-in module with the microcontroller onboard. It does not rely on the host development board for processing; instead, it inserts into the host board's 100-pin PIM interface to receive power, debug signals (PGD/PGC), and connect to gate drivers, sensors, and power stages external to the PIM.