DSPIC33EP128GS806-I/PT Microchip dsPIC33EP 16-Bit Digital Signal Controller 70MIPS 128KB Flash CAN Digital Power PWM TQFP-64

DSPIC33EP128GS806-I/PT Product Overview

The DSPIC33EP128GS806-I/PT from Microchip is a high-performance 16-bit Digital Signal Controller (DSC) in a 64-lead TQFP package, engineered for high-end digital power and motor control applications requiring massive program storage, high-precision analog sensing, industrial networking, and abundant I/O resources. Based on the dsPIC33E core running at 70 MIPS, the DSPIC33EP128GS806-I/PT features 128KB of Flash and 16KB of SRAM, effortlessly hosting extremely complex digital power control loops, power factor correction (PFC), motor control algorithms, and CAN communication stacks with top-tier memory headroom. Key highlights of the DSPIC33EP128GS806-I/PT include digital-power-optimized high-speed precision analog peripherals: a 12-bit high-speed ADC (up to 2.0 Msps with up to 22 analog input channels and multiple sample-and-hold circuits), four analog comparators with programmable references, two 10-bit DACs, and an advanced high-speed PWM module (up to 12 independent outputs configurable as complementary pairs, with high-resolution mode and programmable dead-time). A CAN 2.0B (ECAN) controller and industry-leading serial communication resources including two UARTs, two SPIs, and two I2Cs are also integrated on the DSPIC33EP128GS806-I/PT. Operating from 3.0V to 3.6V with an industrial temperature range of -40°C to +85°C, the TQFP-64 package of the DSPIC33EP128GS806-I/PT provides extremely rich I/O and analog resources, making the DSPIC33EP128GS806-I/PT ideal for server power supplies, on-board chargers (OBC), industrial drives, and high-end power conversion equipment requiring multi-channel precision sensing, CAN connectivity, multi-phase power control, and complex algorithms.

DSPIC33EP128GS806-I/PT Core Features

Processor Core: The DSPIC33EP128GS806-I/PT features a 16-bit dsPIC33E core running at 70 MIPS, with a DSP-enhanced instruction set (single-cycle MAC)

Program Memory: The DSPIC33EP128GS806-I/PT provides 128KB Flash, In-Circuit Self-Programmable

Data Memory: The DSPIC33EP128GS806-I/PT includes 16KB SRAM, providing top-tier storage for complex digital compensators and real-time data buffering

High-Precision Fast ADC: The DSPIC33EP128GS806-I/PT integrates a 12-bit ADC up to 2.0 Msps with up to 22 analog input channels and multiple sample-and-hold circuits

Powerful PWM Outputs: The DSPIC33EP128GS806-I/PT offers up to 12 independent PWM outputs (configurable as complementary pairs) with high-resolution mode, programmable dead-time, and fault protection, perfectly suiting multi-phase power supplies, full-bridge LLC, and complex topologies

Integrated Analog Peripherals: The DSPIC33EP128GS806-I/PT incorporates 4 analog comparators (with programmable references) and 2x 10-bit DACs for fast overcurrent protection and programmable reference setting

CAN Bus: The DSPIC33EP128GS806-I/PT integrates a CAN 2.0B (ECAN) controller for industrial fieldbus or automotive network connectivity, enabling networked power supplies and distributed control

Industry-Leading Communication Interfaces: The DSPIC33EP128GS806-I/PT supports 2x UART, 2x SPI, and 2x I2C to meet the large-scale interconnect and multi-protocol gateway needs of complex systems

Signal Processing & Timers: The DSPIC33EP128GS806-I/PT includes input capture, output compare/standard PWM, and multiple 16/32-bit timers

Safety & System Management: The DSPIC33EP128GS806-I/PT features a hardware CRC engine, watchdog timer, and BOR/POR

Power & Package: The DSPIC33EP128GS806-I/PT operates from a 3.0V to 3.6V single supply, in TQFP-64 (10mm×10mm), industrial temperature range -40°C to +85°C

DSPIC33EP128GS806-I/PT Applications

Networked High-End Digital Power: The DSPIC33EP128GS806-I/PT excels in server power supplies, telecom power, multi-phase DC/DC converters, and AC/DC adapters

Power Factor Correction (PFC): The DSPIC33EP128GS806-I/PT is ideal for active PFC controllers, motor drive PFC front ends, and interleaved PFC

Automotive Electronics: The DSPIC33EP128GS806-I/PT supports on-board chargers (OBC), DC/DC converters, LED drive, and CAN network nodes

Industrial Motor Control: The DSPIC33EP128GS806-I/PT is used in BLDC, PMSM, and stepper motor drives

Power Supplies & Inverters: The DSPIC33EP128GS806-I/PT suits micro inverters, solar optimizers, and UPS systems

Industrial Automation: The DSPIC33EP128GS806-I/PT serves distributed control nodes requiring CAN and multi-channel analog acquisition

DSPIC33EP128GS806-I/PT Key Advantages

Top-Tier Memory & Multi-Phase Control: The DSPIC33EP128GS806-I/PT's 128KB Flash and 16KB SRAM accommodate extremely complex digital power algorithms, CANopen stacks, and field-upgradeable firmware; its 12 independent PWM outputs support multi-phase power supplies and complex topologies for high-power server and telecom applications

Powerful High-Precision Analog Front-End: The DSPIC33EP128GS806-I/PT's 12-bit ADC (2.0 Msps, 22 channels) with multiple S&H circuits enables synchronous precision multi-channel current/voltage sensing; its on-chip DACs and comparators greatly simplify protection and compensation circuitry

Integrated CAN 2.0B + Rich Serial: The DSPIC33EP128GS806-I/PT's on-chip ECAN controller eliminates the need for an external CAN chip; its dual UARTs, SPIs, and I2Cs effortlessly build multi-protocol gateways

70 MIPS Efficient DSP Performance: The DSPIC33EP128GS806-I/PT's dsPIC33E core with single-cycle MAC executes 2p2z compensators, digital filtering, and power control algorithms at high speed, meeting the real-time demands of high-frequency switching supplies

High-Integration TQFP-64: The DSPIC33EP128GS806-I/PT packs powerful power control, a precision analog front-end, networking, and massive memory into a 10mm×10mm footprint, balancing high performance with a moderate PCB area

Industrial Temperature Range: The DSPIC33EP128GS806-I/PT operates from -40°C to +85°C, ensuring reliable operation in harsh industrial and outdoor environments

Mature Development Toolchain: The DSPIC33EP128GS806-I/PT is supported by free MPLAB X IDE and XC16 compiler, digital power reference designs, compensator libraries, CAN driver libraries, and MCC dramatically accelerating time-to-market

Long-Term Availability: The DSPIC33EP128GS806-I/PT is a mature dsPIC33EP GS family product purpose-built for digital power, with long lifecycle and stable supply commitment

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FAQ

1. What is the DSPIC33EP128GS806-I/PT?
   The DSPIC33EP128GS806-I/PT is a high-capacity 16-bit Digital Signal Controller (DSC) from Microchip in a 64-lead TQFP package, running at 70 MIPS with 128KB Flash, 16KB SRAM, a 12-bit 2.0 Msps ADC (22 channels), 4 comparators, 2 DACs, 12-channel advanced PWM, and CAN 2.0B, designed for networked high-end digital power and motor control.
2. What does the “-I/PT” suffix mean on the DSPIC33EP128GS806-I/PT?
   “-I” indicates the industrial temperature range (-40°C to +85°C), and “/PT” denotes the 64-lead TQFP package (10mm×10mm) of the DSPIC33EP128GS806-I/PT.
3. How does the GS806 differ from the GS506 in the context of the DSPIC33EP128GS806-I/PT?
   The DSPIC33EP128GS806-I/PT increases Flash from 64KB to 128KB, SRAM from 8KB to 16KB, ADC channels from 16 to 22, PWM outputs from 8 to 12, and provides an enhanced analog front-end, making it ideal for high-end applications requiring massive program storage, multi-phase power control, and multi-channel precision sensing.
4. Does the DSPIC33EP128GS806-I/PT have CAN or CAN-FD?
   The DSPIC33EP128GS806-I/PT integrates a CAN 2.0B (ECAN) controller supporting standard and extended frames. It does not support CAN-FD. Only an external CAN transceiver is needed for industrial or automotive networking.
5. What can 12 PWM outputs and 22 ADC channels do on the DSPIC33EP128GS806-I/PT?
   The 12 independent PWM outputs of the DSPIC33EP128GS806-I/PT easily implement multi-phase DC/DC converters (e.g., 6-phase or 12-phase) control, while the 22-channel 12-bit ADC synchronously acquires multiple voltage and current rails—perfect for multi-rail monitoring in server and telecom power supplies, and high-power systems requiring complex topology control.
6. What are the on-chip comparators and DACs used for on the DSPIC33EP128GS806-I/PT?
   The four high-speed analog comparators on the DSPIC33EP128GS806-I/PT are ideal for cycle-by-cycle overcurrent protection, ZVS/ZCS detection, and PWM fault triggering. The two 10-bit DACs provide programmable reference voltages or slope compensation, greatly reducing external analog components.
7. What development tools are supported for the DSPIC33EP128GS806-I/PT?
   The DSPIC33EP128GS806-I/PT is supported by Microchip’s free MPLAB X IDE and MPLAB XC16 compiler, along with PICkit or ICD series debuggers, MPLAB Code Configurator (MCC), digital power reference designs, and CAN driver libraries, enabling a quick project start.
8. Does the DSPIC33EP128GS806-I/PT have an internal oscillator, or is an external crystal required?
   The DSPIC33EP128GS806-I/PT features an internal high-speed RC oscillator with an on-chip PLL; no external crystal is required. However, for precise CAN communication and power supply timing, an external crystal is recommended.
9. Are 128KB Flash and 16KB SRAM sufficient for the DSPIC33EP128GS806-I/PT?
   For extremely complex digital power control algorithms (e.g., multi-phase PFC, LLC control), CANopen stacks, and field-upgradeable code, the DSPIC33EP128GS806-I/PT's 128KB Flash and 16KB SRAM provide top-tier storage space, comfortably accommodating future feature expansion.
10. Is the DSPIC33EP128GS806-I/PT suitable for new designs?
    The DSPIC33EP128GS806-I/PT is a mature, reliable high-end digital-power-specific DSC that combines massive memory, CAN, a precision analog front-end, and multi-phase PWM control. For new power conversion designs requiring networking, multi-channel sensing, and abundant code space, the DSPIC33EP128GS806-I/PT is an ideal choice with long-term availability.