Microchip Technology EV64G19A

Overview

EV64G19A from Microchip Technology is a dsPIC33CK512MP608 External Op Amp Motor Control Plug-In Module (PIM) designed to demonstrate high-performance motor control using external on-board operational amplifiers. It integrates the 16-bit dsPIC33CK512MP608 DSC with 512 KB Flash, supports single-motor Field-Oriented Control (FOC) and single-stage boost Power Factor Correction (PFC), and interfaces via a 100-pin PIM header for compatibility with Microchip's MCLV-2, MCHV-2, and MCHV-3 development boards.

For engineers reviewing the EV64G19A datasheet, EV64G19A pinout, EV64G19A application, or EV64G19A equivalent, this PIM enables rapid validation of PWM-driven motor control topologies, analog signal conditioning with configurable op-amp routing, and real-time ADC/PWM co-scheduling - critical for industrial BLDC, PMSM, and PFC system prototyping.

Technical Context

The EV64G19A implements direct pin mapping from the dsPIC33CK512MP608's 80-pin TQFP package to a standardized 100-pin PIM interface, preserving all high-speed PWM outputs (PWM1H/L through PWM8H/L), 12-bit ADC channels (AN0–AN27), DAC outputs, and op-amp I/O pins (OA1IN±/OUT, OA2IN±/OUT, OA3IN±/OUT). It uses 0 Ω resistors to enable flexible op-amp configuration matrices on target boards.

It requires external op-amp configuration boards (e.g., inserted at J14 on MCLV-2 or J4 on MCHV-2/MCHV-3) to close analog feedback loops. The PIM provides dedicated AVDD/AVSS and DVDD/DGND rails, with AGND shorted to DGND via R27, and supports both isolated and non-isolated debug interfaces - though non-isolated oscilloscope probing is explicitly prohibited on MCHV platforms.

Key Specifications

Availability

EV64G19A is available at Aetrix Electronics and suitable for industrial motor control prototyping, embedded power electronics development, and academic research requiring stable component supply for dsPIC33CK-based FOC and PFC evaluation.

Supply support for EV64G19A 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 EV64G19A belongs to Microchip's dsPIC33CK Motor Control PIM family, engineered specifically to accelerate evaluation and firmware development for high-efficiency, real-time motor and power conversion systems using dsPIC DSCs.

FAQ

What is the primary function of the EV64G19A?

The EV64G19A is a plug-in module that hosts the dsPIC33CK512MP608 DSC to demonstrate and develop motor control algorithms - particularly Field-Oriented Control (FOC) and single-stage boost Power Factor Correction (PFC). It routes all key peripherals (PWM, ADC, DAC, op-amp I/O) to a standard 100-pin interface for seamless integration with Microchip's motor control development boards. EV64G19A does not include onboard power stage components; it relies on external gate drivers and op-amp configuration boards for full-system validation.

Which development boards are compatible with the EV64G19A?

The EV64G19A is verified for use with dsPICDEM MCLV-2 (DM330021-2), MCHV-2 (DM330023-2), MCHV-3 (DM330023-3), and the Low-Voltage Motor Control Development Bundle (DV330100). It is explicitly incompatible with earlier revisions like DM330021 (original MCLV) and DM330023 (original MCHV). Compatibility is confirmed across all hardware revisions of the supported boards per Table 1 in DS50003156B.

How are op-amps used on the EV64G19A?

The EV64G19A exposes the dsPIC33CK512MP608's three internal op-amps (OA1, OA2, OA3) via dedicated PIM pins (e.g., OA1IN±/OUT on PIM:24/25/56/57). These pins connect via 0 Ω resistors, allowing users to selectively route op-amp inputs/outputs to external op-amp configuration matrices on compatible development boards. This architecture supports flexible current/voltage sensing and analog signal conditioning without modifying the PIM itself.

Does the EV64G19A include isolation or protection circuitry?

No, the EV64G19A does not integrate galvanic isolation, overvoltage protection, or current limiting. It is a signal-level interface module only - all power stage interfacing, isolation, and fault protection must be implemented externally on the host development board. The documentation explicitly warns against connecting non-isolated oscilloscope probes to test points when used with MCHV-2/MCHV-3 boards due to risk of hardware damage.

What voltage rails does the EV64G19A require?

The EV64G19A requires two separate 3.3 V supplies: DVDD (digital power) and AVDD (analog power), along with corresponding DGND and AGND returns. On the PIM, DGND and AGND are shorted via 0 Ω resistor R27. Digital power pins (PIM:02, 16, 37, 62, 86) and ground pins (PIM:15, 36, 65, 75) are internally shorted to ensure low-impedance distribution - a design requirement for stable PWM timing and ADC reference integrity in EV64G19A operation.