DSPIC33EP16GS202T-I/MM - 16-bit 70 MIPS DSC 16KB Flash | Microchip
MPN: DSPIC33EP16GS202T-I/MM ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $3.04 | $3.04 |
| 10 | $2.85 | $28.50 |
| 100 | $2.65 | $265.00 |
| 500 | $2.45 | $1,225.00 |
| 1,000 | $2.25 | $2,250.00 |
DSPIC33EP16GS202T-I/MM Overview
A digital signal controller combines the computational throughput of a digital signal processor with the peripheral integration and control architecture of a microcontroller, sitting in the device hierarchy between a general-purpose MCU and a dedicated DSP. DSCs are the standard choice for closed-loop control systems that require fast interrupt handling, deterministic execution, and specialized power-conversion peripherals in a single chip.
The dsPIC33EP16GS202 belongs to Microchip's GS family designed specifically for digital power applications. Key architectural features include a barrel shifter, boundary scan (JTAG) support, a multiple internal bus architecture for efficient data handling, and a DSP engine with dual data fetch and single-cycle MAC instructions. On-chip peripherals targeted at power electronics include high-resolution PWM outputs, a high-speed analog-to-digital converter, comparators, and communication interfaces, enabling full digital control of switching converters.
Fabricated in CMOS technology, the device executes up to 70 million instructions per second and is supported by Microchip's Functional Safety (FuSa) package for safety-critical designs. The 28-pin QFN footprint conserves board area while providing 21 usable I/O for gate drive, feedback, and communication signals.
Typical applications include AC-DC and DC-DC power supplies, semi-bridgeless PFC stages, peak current controlled zero-voltage switching (ZVS) full-bridge converters, lighting ballasts, and battery chargers. Microchip's 750W AC-DC reference design demonstrates a semi-bridgeless PFC followed by a ZVS full-bridge converter with digital slope compensation using this device family.
When designing with this controller, plan flash utilization carefully - 16KB accommodates digital power control loops well, but additional protocol stacks or user interfaces may require a larger-memory family variant. The T suffix denotes tape-and-reel packaging for automated assembly.
This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet.
Drop-in alternatives for DSPIC33EP16GS202T-I/MM — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Variants in this series
Same-series models that are drop-in compatible with DSPIC33EP16GS202T-I/MM (same form factor and footprint) — differing in Package, Core Architecture, Operating Temperature, Packaging.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
DSPIC33EP16GS202-E/MM
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
$2.3 / Unit
View Datasheet →DSPIC33EP16GS202T-E/MM
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
DSPIC33EP16GS202-I/MM
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
DSPIC33EP16GS502-I/MM
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
$2.45 / Unit
View Datasheet →DSPIC33EP128MC202T-E/MM
✅ Drop-In✓ In Stock
$3.41 / Unit
View Datasheet →DSPIC33EP16GS202T-I/MM Maximum Ratings & Electrical Characteristics
| Core Architecture | 16-bit dsPIC33EP |
| Max CPU Speed | 70 MIPS |
| Clock Frequency | 60 MHz |
| Program Memory (Flash) | 16 KB (16K x 8) |
| RAM | 2 KB |
| Operating Voltage | 3.0 V to 3.6 V |
| Operating Temperature | -40C to +85C |
| Package | QFN-28-EP (6x6 mm, PQCC 28-pin) |
| Mounting Type | Surface Mount |
| I/O Count | 21 |
| DSP Features | Barrel shifter, single-cycle MAC |
| Debug / Scan | Boundary scan (JTAG) support |
| Technology | CMOS |
| Family Positioning | Digital power applications (GS series) |
| Functional Safety Support | Yes (FuSa) |
| Packaging | Tape and Reel (T suffix) |
| RoHS Status | RoHS compliant |
DSPIC33EP16GS202T-I/MM qfn-28-ep (6x6 mm, pqcc 28-pin) Pin Configuration Guide
Pin configuration for DSPIC33EP16GS202T-I/MM (qfn-28-ep (6x6 mm, pqcc 28-pin) package). This digital IC includes GPIO, communication interfaces (UART, SPI, I2C), and power pins. Refer to the manufacturer datasheet for alternate pin functions and configuration options. Essential for embedded system design and PCB layout.
No detailed pinout data available for DSPIC33EP16GS202T-I/MM.
Refer to the datasheet for full pin configuration.
Typical Applications
DSPIC33EP16GS202T-I/MM is suitable for 6 applications: AC-DC Power Supplies, Power Factor Correction (PFC), ZVS Full-Bridge DC-DC Converters, Digital Lighting Ballasts and LED Drivers, Battery Chargers, Industrial Motor Control Auxiliary Supplies.
AC-DC Power Supplies
The DSPIC33EP16GS202T-I/MM fits AC-DC power supply control because its GS-series peripheral set provides high-resolution PWM and fast ADC sampling specifically architected for switching converter feedback loops. Running at 70 MIPS, it executes current-mode and voltage-mode control loops with deterministic timing that analog controllers approximate with fixed hardware. Microchip's 750W AC-DC reference design demonstrates this device family controlling a semi-bridgeless PFC stage followed by a peak current controlled zero-voltage switching full-bridge converter with digital slope compensation, achieving very high conversion efficiency. Placed as the sole supervisory controller, it replaces multiple analog control ICs and supports adaptive features such as burst mode, brown-out handling, and digital telemetry over a serial link, while the 16KB flash is sized for tightly optimized control code.
Recommended
Power Factor Correction (PFC)
Semi-bridgeless PFC stages benefit directly from the DSPIC33EP16GS202T-I/MM's 70 MIPS throughput and fast interrupt response, which maintain stable average-current-mode control across the full line cycle. The GS-series digital power peripherals allow per-cycle PWM updates synchronized with ADC conversions of inductor current and bus voltage, enabling the digital slope compensation described in Microchip's 750W reference design. The 3.0V to 3.6V operating range suits a standard 3.3V digital rail derived from the auxiliary supply, while 21 I/O pins handle gate drive, zero-cross detection, and feedback conditioning. Digital implementation permits adaptive gain scheduling over wide line and load ranges, and the -40C to +85C industrial rating covers typical PSU ambient conditions inside sealed enclosures.
Recommended
ZVS Full-Bridge DC-DC Converters
Zero-voltage switching full-bridge converters require precisely phased gate pulses with adjustable dead time and slope compensation - tasks the DSPIC33EP16GS202T-I/MM handles with its high-resolution PWM and 70 MIPS DSP core. Peak current controlled ZVS full-bridge control, as demonstrated in Microchip's 750W reference design, demands per-cycle current sampling and fast loop corrections; the device's CMOS 16-bit architecture with barrel shifter and dual-bus data paths executes these computations within a single switching period at hundreds of kilohertz. The QFN-28-EP 6x6 mm footprint fits tightly on converter control boards, and the exposed pad improves thermal transfer to the PCB in hot secondary-side locations. The 16KB flash stores phase-shift control, protection state machines, and fault logging.
Recommended
Digital Lighting Ballasts and LED Drivers
The DSPIC33EP16GS202T-I/MM serves digital lighting applications where resonant or buck LED driver stages need adjustable-frequency, phase-controlled PWM with closed-loop current regulation. At 70 MIPS, the controller runs lamp/LED current loops and resonant-tank frequency tracking simultaneously, while the GS-series peripherals generate the complementary PWM pairs with programmable dead time needed for half-bridge stages. Digital control enables dimming curves, warm-up sequencing, and fault shutdown logic in firmware rather than fixed analog circuits, reducing BOM count. The -40C to +85C industrial temperature range matches luminaire operating environments, and the 3.3V low-power operation keeps controller dissipation negligible relative to the lighting load. Tape-and-reel packaging supports high-volume automated assembly of driver boards.
Recommended
Battery Chargers
Multi-stage battery charging - constant current, constant voltage, and termination - maps naturally onto the DSPIC33EP16GS202T-I/MM's digital control capabilities. The controller samples charge current and pack voltage with its ADC and adjusts converter duty through the high-resolution PWM at loop rates supported by 70 MIPS execution, implementing CC/CV profiles, charge termination criteria, and safety timers in firmware. Charged-state estimation routines fit comfortably in 16KB flash when written for efficiency, leaving headroom for communication with a host via a serial interface. The 21 available I/O accommodate gate drive, thermistor inputs, status LEDs, and protocol pins. The industrial temperature rating and RoHS compliance suit consumer and industrial charger designs destined for global markets.
Recommended
Industrial Motor Control Auxiliary Supplies
The DSPIC33EP16GS202T-I/MM controls auxiliary and housekeeping converters inside industrial drives, where its 70 MIPS DSP engine manages switch-mode supplies feeding gate drivers and control electronics. In environments with strong switching noise, the boundary scan support and deterministic interrupt architecture simplify debug and system-level test, and the -40C to +85C range covers typical cabinet and motor-terminal temperatures. The CMOS 16-bit core runs protection algorithms - overcurrent comparators, fault latching, and brown-out supervision - with predictable latency, while the multiple internal bus architecture keeps ADC sampling and PWM updates independent of communication overhead. For drives that also need main motor control, the pin-compatible DSPIC33EP128MC202T-E/MM from Microchip's MC family offers a migration path on the same PCB footprint.
Recommended
Recommended Products Summary
Engineering reference data for DSPIC33EP16GS202T-I/MM — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | DSPIC33EP16GS202-E/MM | DSPIC33EP16GS202T-E/MM | DSPIC33EP16GS202-I/MM | DSPIC33EP16GS502-I/MM | DSPIC33EP128MC202T-E/MM |
|---|---|---|---|---|---|---|
| Package | QFN-28-EP (6x6 mm) | QFN-28-EP (6x6 mm) - same | QFN-28-EP (6x6 mm) - same | QFN-28-EP (6x6 mm) - same | QFN-28-EP (6x6 mm) - same | QFN-28 (MM) - same footprint |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Program Memory (Flash) | 16 KB | 16 KB | 16 KB | 16 KB | 32 KB | 128 KB |
| Max MIPS | 70 MIPS | 70 MIPS | 70 MIPS | 70 MIPS | 70 MIPS | 70 MIPS |
| Operating Temperature | -40C to +85C | -40C to +125C | -40C to +125C | -40C to +85C | -40C to +85C | -40C to +125C |
| Family / Target Application | GS - digital power | GS - digital power | GS - digital power | GS - digital power | GS - digital power | MC - motor control |
Key Differentiators
- Extended temperature option on identical footprint (vs DSPIC33EP16GS202-E/MM)
- Double memory without PCB change (vs DSPIC33EP16GS502-I/MM)
- Digital-power-optimized peripheral set vs MC family (vs DSPIC33EP128MC202T-E/MM)
Design Notes
Supply the DSPIC33EP16GS202T-I/MM from a clean, regulated 3.3V rail within the 3.0V to 3.6V operating range. In digital power converters the controller shares a board with high dv/dt switching nodes, so decouple each VDD pin with 0.1uF ceramics placed within 2 mm of the pin, plus a bulk 4.7uF to 10uF capacitor near the package. Route VDD and VSS as a local pair under the QFN and use the exposed pad as a low-inductance ground connection - connect it to a solid ground plane with a via array.
The QFN-28-EP (6x6 mm) exposed pad must be soldered to the PCB for both grounding and thermal reliability - do not treat it as optional. Design the landing pattern per Microchip's QFN-S recommended footprint with an approximately 3.6x3.6 mm center pad and solder-mask-defined via array. Reserve board area for the standard 5-pin ICSP header wired to MCLR, VDD, VSS, PGC1, and PGD1 so production programming and in-circuit debug are possible without board rework.
Plan flash utilization early: 16KB accommodates digital power control loops, but adding communication stacks, data logging, or bootloaders can exhaust it. Select the pin-compatible DSPIC33EP16GS502 (32KB) if firmware scope may grow. Also, the -I suffix limits operation to +85C ambient; designs inside sealed power supplies frequently exceed this, so verify thermal derating or choose the -E (up to +125C) variant during schematic review rather than after field failures.
Compliance Information
RoHS compliance confirmed via LCSC/JLCPCB part data for the QFN-28-EP device. REACH, halogen-free, and conflict-minerals status not stated in provided data - verify on the Microchip official product page.
