Microchip Technology AC164337

Overview

AC164337 from Microchip Technology is a 28-pin dsPIC30F1010-based development board designed for switch-mode power supply (SMPS) control and digital signal processing applications. It integrates a 16-bit dsPIC DSC core with 6 KB Flash, 256 bytes RAM, dual PWM outputs (PWM1L/PWM1H, PWM2L/PWM2H), 6-channel 10-bit ADC, and four analog comparators - enabling real-time current/voltage loop control in isolated DC-DC converters and AC-DC adapters.

For engineers reviewing the AC164337 datasheet, AC164337 pinout, AC164337 application, or AC164337 equivalent, this board provides validated hardware for rapid prototyping of digitally controlled SMPS topologies including flyback, forward, and half-bridge converters - with on-board isolated gate drivers, feedback sensing, and ICD debugging interface.

Technical Context

The AC164337 implements the dsPIC30F1010 microcontroller in SOIC-28 packaging, featuring a modified Harvard architecture, 30 MIPS operation at 30 MHz, and dedicated SMPS peripherals including two independent PWM generators with dead-time control, high-speed ADC with conversion pairing, and comparator-based fault detection. Its timing subsystem supports synchronous PWM generation triggered by ADC events or comparator outputs.

It includes integrated hardware for isolated communication (via optocoupler interfaces), programmable voltage references for analog comparators, and configurable interrupt routing for fast overcurrent/overvoltage response - all optimized for closed-loop control where sub-microsecond latency and deterministic execution are critical.

Key Specifications

Availability

AC164337 is available at Aetrix Electronics and suitable for digital power supply design, embedded motor control prototyping, and industrial SMPS validation requiring stable component supply and full toolchain integration.

Supply support for AC164337 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 AC164337 belongs to Microchip's dsPIC30F Switch Mode Power Supply family - engineered specifically for digital control of isolated and non-isolated DC-DC converters, offering tightly integrated PWM, ADC, and comparator resources in a single-chip solution.

FAQ

What is the primary function of the AC164337 development board?

The AC164337 development board serves as a complete hardware platform for evaluating and prototyping digital power supply designs using the dsPIC30F1010 digital signal controller. It includes on-board isolated gate drivers, analog feedback circuitry, current-sense amplifiers, and debug interfaces - allowing immediate implementation of closed-loop SMPS control algorithms without custom PCB design. The AC164337 enables rapid validation of PWM timing, ADC synchronization, and fault-response behavior in real-world power topologies.

Which microcontroller is used on the AC164337 board?

The AC164337 board uses the dsPIC30F1010 microcontroller in 28-pin SOIC packaging. This device features a 16-bit dsPIC DSC core with 6 KB Flash program memory, 256 bytes data RAM, two 16-bit timers, one capture input, two compare/PWM modules, a 10-bit 2 Msps ADC with six analog inputs, and four analog comparators - all optimized for digital power control applications. The AC164337 leverages these integrated peripherals to deliver deterministic, low-latency SMPS regulation.

Does the AC164337 support isolated gate driving for high-side MOSFETs?

Yes, the AC164337 includes on-board isolated gate driver circuitry compatible with high-side and low-side switching configurations. It supports bootstrap and transformer-isolated drive methods, with dedicated connections for PWM1H/PWM1L and PWM2H/PWM2L outputs from the dsPIC30F1010. The isolation barrier meets reinforced insulation requirements for AC-DC and isolated DC-DC applications, and the AC164337 provides test points and jumpers to configure drive strength and dead-time settings directly tied to the dsPIC30F1010's PWM module registers.

Can the AC164337 be used for closed-loop current mode control?

Yes, the AC164337 supports hardware-accelerated closed-loop current mode control through its dsPIC30F1010's integrated peripherals: the 10-bit ADC samples current-sense signals at up to 2 Msps with conversion pairing; analog comparators detect overcurrent events within 20 ns and trigger PWM shutdown or fault interrupts; and PWM generators provide precise duty-cycle modulation synchronized to ADC results. This enables peak-current-mode or average-current-mode control loops fully implemented in firmware on the AC164337 without external ICs.

Is the AC164337 compatible with MPLAB X IDE and dsPIC Programmer tools?

Yes, the AC164337 is fully supported by Microchip's MPLAB X IDE and compatible with standard dsPIC programming/debugging tools including the PICkit™ 3, ICD 3, and REAL ICE™ debuggers. Its onboard ICD interface uses the standard PGC/PGD pins mapped to the dsPIC30F1010's EMUC/EMUD channels, enabling in-circuit programming, real-time variable monitoring, and hardware breakpoint debugging. Firmware developed for the AC164337 can be deployed directly to production dsPIC30F1010-based boards without modification.