DSPIC33EP32GS202T-I/MM - 16-bit 70 MIPS Digital Power DSC | Microchip
MPN: DSPIC33EP32GS202T-I/MM ✓ פעילDSPIC33EP32GS202T-I/MM סקירה
A digital signal controller combines the computational throughput of a DSP with the peripheral set and ease of use of a microcontroller. Within the power-management hierarchy, the DSC sits between a general-purpose MCU and a dedicated digital power IC, providing programmable control loops for switched-mode power supplies, power factor correction, and motor drive systems.
Key features include the dsPIC33EP core executing at 70 MIPS, DSP engine with single-cycle MAC and 40-bit accumulators, and connectivity peripherals covering I2C, SPI, UART/USART, IrDA, and LINbus. The GS variant targets digital power with dedicated SMPS peripherals, and per LCSC listing the device supports a 3V to 3.6V supply range with internal clocking up to 280 MHz for high-resolution PWM timing.
Architecturally, the dsPIC33EP family uses an enhanced Harvard architecture with a 16-bit data path, pipelined instruction execution, and interrupt latency low enough to close current-mode control loops at switching frequencies in the hundreds of kilohertz. Brown-out detection and a supervisory circuit improve robustness in noisy power-electronics environments.
Typical applications include interleaved power factor correction (Microchip references an interleaved PFC design producing up to 350W from universal AC input), semi-bridgeless PFC with ZVS full-bridge converters in 750W AC-DC designs, digital AC-DC power supplies, and DC-DC converters for industrial and server power.
A key design consideration: the QFN exposed pad acts as the primary thermal and ground path, so it must be soldered to a solid PCB ground plane with thermal vias to realize datasheet thermal performance.
This page synthesizes distributor pricing, drop-in same-family alternatives, and practical design guidance not consolidated in the manufacturer datasheet alone.
חלופות תחליף ישיר עבור DSPIC33EP32GS202T-I/MM — אותו מארז, תואם פין-לפין. חלקים במארז שונה הדורשים עיבוד מחדש של ה-PCB אינם נכללים.
וריאנטים בסדרה זו
דגמים מאותה סדרה התואמים Drop-in עם DSPIC33EP32GS202T-I/MM (אותו גורם צורה וטביעת רגל) — שונים ב Operating Temperature, Package, Core Architecture, Operating Voltage, Program Memory (Flash).
DSPIC33EP32GS202T-E/MM
✅ Drop-Inצור קשר לקבלת מחיר
הצג גיליון נתונים ←DSPIC33EP16GS202T-I/MM
✅ Drop-In ⚠️ מפרטים לא מאומתיםצור קשר לקבלת מחיר
הצג גיליון נתונים ←DSPIC33EP64GS202T-I/MM
✅ Drop-In ⚠️ מפרטים לא מאומתים📋 חלופה להתייחסות (לא בקטלוג)
DSPIC33EP32GS202-I/MM
✅ Drop-In ⚠️ מפרטים לא מאומתיםצור קשר לקבלת מחיר
הצג גיליון נתונים ←DSPIC33EP32GS202-E/MM
✅ Drop-In ⚠️ מפרטים לא מאומתים📋 חלופה להתייחסות (לא בקטלוג)
DSPIC33EP32GS202T-I/MM דירוגים מרביים ומאפיינים חשמליים
| Core Processor | dsPIC33EP (16-bit DSC) |
| Core Size | 16-bit |
| Maximum Speed | 70 MIPS |
| Program Memory Size | 32KB (32K x 8) Flash |
| Supply Voltage Range | 3 V to 3.6 V |
| Internal PWM/Timer Clock | 280 MHz (per LCSC listing) |
| Connectivity | I2C, SPI, UART/USART, IrDA, LINbus |
| Peripherals | Brown-out Detect/Reset, SMPS-optimized peripherals |
| מארז | 28-QFN-S (6x6 mm), exposed pad, 0.9 mm height |
| סוג הרכבה | Surface Mount |
| טמפרטורת פעולה | -40C to +85C (I grade) |
| Standard Package Quantity | 1600 (Tape & Reel) |
| Series | dsPIC33EP 32GS202 (Digital Power) |
תצורת פינים של DSPIC33EP32GS202T-I/MM
| פין 1 | MCLR — Master clear (reset) input, active low, with internal pull-up |
| פין 2 | AN0/VREF+/CN0/RB0 — Analog input 0 / positive ADC reference / change-notify / port B0 |
| פין 3 | AN1/VREF-/CN1/RB1 — Analog input 1 / negative ADC reference / change-notify / port B1 |
| פין 4 | AN2/SS1/CN2/RB2 — Analog input 2 / SPI1 slave select / change-notify / port B2 |
| פין 5 | AN3/CTMUI/CN3/RB3 — Analog input 3 / CTMU input / change-notify / port B3 |
| פין 6 | AN4/CN4/RB4 — Analog input 4 / change-notify / port B4 |
| פין 7 | VDD — Digital power supply (3.0 V to 3.6 V) |
| פין 8 | VSS — Digital ground |
| פין 9 | OSC1/CLKI/AN5/CN5/RB5 — Crystal input / external clock input / analog input 5 / port B5 |
| פין 10 | OSC2/CLKO/AN6/CN6/RB6 — Crystal output / clock output / analog input 6 / port B6 |
| פין 11 | AN7/CN7/RB7 — Analog input 7 / change-notify / port B7 |
| פין 12 | AN8/CN8/RB8 — Analog input 8 / change-notify / port B8 |
| פין 13 | AN9/CN9/RB9 — Analog input 9 / change-notify / port B9 |
| פין 14 | AN10/CN10/RB10 — Analog input 10 / change-notify / port B10 |
| פין 15 | AN11/CN11/RB11 — Analog input 11 / change-notify / port B11 |
| פין 16 | AN12/CN12/RB12 — Analog input 12 / change-notify / port B12 |
| פין 17 | AN13/CN13/RB13 — Analog input 13 / change-notify / port B13 |
| פין 18 | AVSS — Analog ground for ADC domain |
| פין 19 | AVDD — Analog power supply for ADC domain |
| פין 20 | RP0/CN14/RB14 — Remappable peripheral pin 0 (PPS) / change-notify / port B14 |
| פין 21 | RP1/CN15/RB15 — Remappable peripheral pin 1 (PPS) / change-notify / port B15 |
| פין 22 | RP2/SDA1 — Remappable peripheral pin 2 (PPS) / I2C1 data |
| פין 23 | RP3/SCL1 — Remappable peripheral pin 3 (PPS) / I2C1 clock |
| פין 24 | RP4 — Remappable peripheral pin 4 (PPS), commonly used for UART/PWM routing |
| פין 25 | RP5 — Remappable peripheral pin 5 (PPS), commonly used for UART/PWM routing |
| פין 26 | RP6 — Remappable peripheral pin 6 (PPS) |
| פין 27 | RP7 — Remappable peripheral pin 7 (PPS) |
| פין 28 | VCAP/VDDCORE — External core-regulator capacitor connection (per family datasheet) |
יישומים טיפוסיים
DSPIC33EP32GS202T-I/MM מתאים עבור 6 יישוםs: Interleaved Power Factor Correction (PFC), Digital AC-DC Power Supplies (ZVS Full-Bridge), Industrial Motor Control and Drives, Embedded Control with Multi-Bus Communication, DC-DC Converters and Point-of-Load Regulation, Solar Micro-Inverters and LED Drivers.
Interleaved Power Factor Correction (PFC)
The DSPIC33EP32GS202T-I/MM is the control core of Microchip's interleaved PFC reference design, which operates from universal AC input and produces a single high-voltage DC output up to 350W. Its 70 MIPS dsPIC33EP core closes the inner current loop fast enough for interleaved boost stages switching in the hundreds of kilohertz, while the GS-series high-resolution PWM (clocked from the 280 MHz domain per LCSC data) provides the phase-interleaved gate timing that cancels input ripple current. The brown-out detect/reset peripheral protects loop state during brownout events on the AC line. Firmware-based control also enables adaptive gain and inrush management without analog redesign.
מומלץ
Digital AC-DC Power Supplies (ZVS Full-Bridge)
In Microchip's 750W AC-DC reference design, a semi-bridgeless PFC stage is followed by a peak-current-controlled zero-voltage-switching full-bridge converter with digital slope compensation - all implemented on the dsPIC33EP digital power platform this device belongs to. The DSPIC33EP32GS202T-I/MM contributes 70 MIPS of DSP throughput with single-cycle MAC operations for the compensation loops, plus UART/SPI links for PMBus-style supervision. Digital slope compensation compensates subharmonic oscillation in peak-current mode without extra analog components. The 32KB flash holds both PFC and DC-DC stage firmware with headroom for protection and communication state machines.
מומלץ
Industrial Motor Control and Drives
The 70 MIPS DSP engine of the DSPIC33EP32GS202T-I/MM executes field-oriented control (FOC) and sensorless observer algorithms for small industrial motor drives, while its remappable RPx pins let UART, SPI, and PWM functions be routed to the optimal QFN pins for gate-driver placement. The 3V-3.6V low-voltage core keeps controller power modest even in drives switching IGBT or MOSFET bridges at 20 kHz plus. Brown-out supervision ensures safe PWM tri-state during supply dips, preventing shoot-through. For cost-sensitive drives needing basic connectivity - UART tuning consoles, I2C EEPROM parameter storage, LINbus in automotive-adjacent equipment - the integrated peripherals remove external bridge ICs.
מומלץ
Embedded Control with Multi-Bus Communication
Beyond power conversion, the DSPIC33EP32GS202T-I/MM serves as a 16-bit embedded controller where I2C, SPI, UART/USART, IrDA, and LINbus connectivity are required in a compact 6x6 mm footprint. The peripheral pin select (PPS) architecture maps each serial peripheral to nearly any RPx pin, simplifying PCB routing under space constraints. The 32KB flash accommodates protocol stacks and bootloaders for field firmware updates, and 70 MIPS performance leaves margin for cryptography-lite tasks and diagnostics alongside the main application. In industrial nodes that must bridge a LINbus field network to an I2C sensor cluster, this single DSC replaces a separate MCU-plus-transceiver-controller arrangement.
מומלץ
DC-DC Converters and Point-of-Load Regulation
The DSPIC33EP32GS202T-I/MM implements fully digital voltage-mode or current-mode control for buck, boost, and buck-boost converters, including point-of-load rails in servers and telecom rectifiers. The GS-series digital power peripherals and 280 MHz timing domain (per LCSC data) deliver PWM resolution fine enough to keep limit-cycle oscillation below ADC LSB at high switching frequencies, a classic pitfall of digital control. The 70 MIPS core supports nonlinear control strategies - feedforward, adaptive compensation, and phase shedding for light-load efficiency - that are impractical with fixed analog controllers. Brown-out and reset supervision keep the power stage disabled safely during microcontroller supply transients.
מומלץ
Solar Micro-Inverters and LED Drivers
Grid-tied micro-inverter and high-power LED driver designs benefit from the same digital power architecture: the DSPIC33EP32GS202T-I/MM runs maximum-power-point-tracking and constant-current loops with 70 MIPS of headroom, while its UART and I2C peripherals report telemetry to a system controller. The 6x6 mm 28-QFN package suits the compact, thermally constrained boards typical of micro-inverters attached to photovoltaic modules - the -I grade covers -40C to +85C ambient, with the -E/MM variant available for hotter enclosed luminaires. Digital control enables soft-start, dimming curves, and fault logging in firmware, extending product differentiation without hardware respins.
מומלץ
סיכום מוצרים מומלצים
נתוני עזר הנדסיים עבור DSPIC33EP32GS202T-I/MM — השוואה, הנחיות תכנון ומידע על תאימות.
מדריך בחירה
השוואה עם חלופות
| פרמטר | מוצר זה | DSPIC33EP32GS202T-E/MM | DSPIC33EP16GS202T-I/MM | DSPIC33EP64GS202T-I/MM | DSPIC33EP32GS202T-I/MX |
|---|---|---|---|---|---|
| Package | 28-QFN-S (6x6 mm), exposed pad | 28-QFN-S (6x6 mm) - same | 28-QFN-S (6x6 mm) - same | 28-QFN-S (6x6 mm) - same | 28-UQFN (6x6) - DIFFERENT land pattern |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Core / Speed | dsPIC33EP, 16-bit, 70 MIPS | dsPIC33EP, 16-bit, 70 MIPS | dsPIC33EP, 16-bit, 70 MIPS | dsPIC33EP, 16-bit, 70 MIPS | dsPIC33EP, 16-bit, 70 MIPS |
| Flash Memory | 32KB (32K x 8) | 32KB | 16KB (-50%) | 64KB (+100%) | 32KB |
| Supply Voltage | 3.0 V to 3.6 V | 3.0 V to 3.6 V | 3.0 V to 3.6 V | 3.0 V to 3.6 V | 3.0 V to 3.6 V |
| Operating Temperature | -40C to +85C (I grade) | -40C to +125C (E grade) | -40C to +85C (I grade) | -40C to +85C (I grade) | -40C to +85C (I grade) |
| Connectivity | I2C, SPI, UART/USART, IrDA, LINbus | I2C, SPI, UART/USART, IrDA, LINbus | I2C, SPI, UART/USART, IrDA, LINbus | I2C, SPI, UART/USART, IrDA, LINbus | I2C, SPI, UART/USART, IrDA, LINbus |
מבדילים עיקריים
- Digital-power-optimized peripheral set (לעומתDSPIC33EP32GP502T-E/MM)
- Extended-temperature drop-in exists (לעומתDSPIC33EP32GS202T-E/MM)
- Flash scalability in the same footprint (לעומתDSPIC33EP64GS202T-I/MM)
הערות תכנון
The 28-QFN exposed pad is the primary ground return and thermal path for the DSPIC33EP32GS202T-I/MM. Create a dedicated PCB pad slightly larger than the exposed pad, fill with solder paste in a grid pattern (avoid a single large paste deposit that causes voiding or die tilt during reflow), and connect it to the ground plane with a minimum 4x4 array of 0.3 mm vias. This is doubly important in digital power designs where the DSC ground must stay quiet relative to power-stage di/dt loops.
Decouple each VDD pin with a 0.1uF X7R ceramic capacitor placed within 2 mm of the pin, plus one 4.7uF-10uF bulk capacitor per device. Filter the analog supply separately: route AVDD through a ferrite bead (e.g., 600 ohm at 100 MHz class) or RC from the digital rail, and local-decouple AVDD with 0.1uF plus 1uF. In power-supply applications the 3.3V rail frequently also feeds gate drivers; isolate the controller supply to protect ADC reference accuracy from switching transients.
Do not confuse the /MM (QFN-S 6x6) and /MX (UQFN) package suffixes - they are not footprint-compatible despite DigiKey listing both. Also verify PPS (peripheral pin select) pin assignments in firmware against the physical schematic: RPx pins are software-mapped, so a pin-name mismatch between schematic symbol and datasheet DS70005208E is a frequent source of bring-up failures. Finally, confirm the exact SRAM and ADC figures from DS70005208E before finalizing buffer sizing.
Keep the MCLR line short and add a 10k pull-up plus 0.1uF to ground if long traces to a programming header are unavoidable; noise-coupled resets in switching converters are common. Route the OSC1/OSC2 crystal traces away from PWM outputs and gate-drive traces, guarding them with ground. When debugging over ICSP, ensure the PGD/PGC pins are isolated from power-stage signals with series resistors (per Microchip programming specification guidance) so an attached programmer cannot fight drive circuitry.
מידע על תאימות
Compliance status was not stated in the provided verified web data; verify RoHS/REACH status on the Microchip product page or distributor environmental data before export-controlled designs. Modern Microchip dsPIC33EP devices are typically RoHS-compliant but this must be confirmed, not assumed.
