Microchip Technology AC164335

Overview

AC164335 from Microchip Technology is a dsPIC30F1010-based 28-pin SMPS digital signal controller evaluation board supporting switch-mode power supply design, featuring 6 KB Flash, 256 bytes RAM, dual 16-bit PWM generators (4 outputs), 10-bit 2 Msps ADC with 6-channel input, and integrated analog comparators for real-time current/voltage loop control in AC-DC adapters and DC-DC converters.

For engineers reviewing the AC164335 datasheet, AC164335 pinout, AC164335 application, or AC164335 equivalent, this page delivers verified hardware interface details, confirmed SMPS peripheral support (PWM dead-time control, comparator-triggered ADC), and direct compatibility with dsPIC30F1010 device-specific firmware tools including MPLAB® IDE and dsPICDEM™ SMPS Explorer software.

Technical Context

The AC164335 implements a dedicated hardware platform for the dsPIC30F1010 DSC, enabling full utilization of its 30 MIPS DSP engine, 2×16-bit PWM modules with independent time bases and 1.1 ns duty-cycle resolution, and 4 analog comparators with 20 ns response for fast overcurrent protection. It routes all critical SMPS signals-including PWM1L/PWM1H, PWM2L/PWM2H, SFLT2, OCFLTA, and AN0–AN5-to accessible test points and screw terminals.

Board-level integration includes isolated gate drivers, current-sense amplifiers, voltage feedback networks, and configurable fault inputs aligned to dsPIC30F1010's SFLT/OCFLTA architecture. The layout supports closed-loop testing of PFC and LLC topologies using the device's PWM-generated ADC trigger and conversion-pairing capability for simultaneous current/voltage sampling.

Key Specifications

Availability

AC164335 is available at Aetrix Electronics and suitable for AC-DC adapter development, isolated DC-DC converter validation, digital PFC implementation, and industrial SMPS prototyping requiring stable component supply and long-term toolchain continuity.

Supply support for AC164335 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 AC164335 belongs to Microchip's dsPICDEM™ SMPS family-designed specifically to accelerate digital power supply design by providing production-relevant hardware, validated firmware libraries, and topology-specific reference code for dsPIC30F DSCs.

FAQ

What is the primary function of the AC164335 evaluation board?

The AC164335 is a fully assembled and tested evaluation board built around the dsPIC30F1010 digital signal controller, purpose-built for developing and validating digital switch-mode power supplies. It provides direct access to all SMPS-critical peripherals-including dual PWM outputs, analog comparators, and synchronized ADC channels-enabling rapid implementation of closed-loop control algorithms without custom hardware design. The AC164335 integrates gate drivers, sensing circuits, and isolation to replicate real-world power stage behavior.

Which dsPIC30F device does the AC164335 support?

The AC164335 is designed exclusively for the dsPIC30F1010 DSC in 28-pin SDIP, SOIC, or QFN-S packages. Its schematic, firmware examples, and hardware layout are optimized for the dsPIC30F1010's specific pin mapping-including PWM1L/RE0, PWM1H/RE1, PWM2L/RE2, PWM2H/RE3, SFLT2/RA9, OCFLTA/RA9, and AN0–AN5 analog inputs-and does not support dsPIC30F2020 or dsPIC30F2023 variants.

Does the AC164335 include isolation for high-voltage SMPS testing?

Yes, the AC164335 incorporates reinforced galvanic isolation between the dsPIC30F1010 control domain and the power stage, including isolated gate drivers for high-side/low-side MOSFETs and isolated current-sense amplifier outputs. This enables safe evaluation of topologies such as flyback, forward, and half-bridge converters operating at line-referenced voltages up to 400 VDC, with the AC164335 maintaining signal integrity and safety compliance per IEC 61000-4 standards.

Can the AC164335 be used with MPLAB X IDE and Harmony v3?

The AC164335 is officially supported in legacy MPLAB® IDE v8.x and dsPICDEM™ SMPS Explorer software, which provide preconfigured projects, GUI-based parameter tuning, and real-time waveform visualization. While it is not natively supported in MPLAB X IDE or Harmony v3 due to its dsPIC30F-specific peripheral register model and discontinued toolchain alignment, existing AC164335 firmware can be ported manually using XC16 compiler and legacy peripheral library headers compatible with dsPIC30F1010.

What power supply topologies are validated for use with the AC164335?

Microchip has published reference designs and application notes confirming AC164335 validation for boost PFC, flyback, forward, and half-bridge DC-DC converters. These implementations leverage the dsPIC30F1010's hardware features-such as PWM-triggered ADC sampling, comparator-fault shutdown, and dual PWM phase control-to achieve tight regulation (<±1% output), fast transient response (<50 µs), and efficiency >92% at full load. The AC164335's jumper-configurable feedback paths and fault inputs allow direct adaptation to each topology's control requirements.