DSPIC33EP16GS202T-E/SS - 16-Bit DSC, 70 MIPS, 16KB Flash | Microchip
MPN: DSPIC33EP16GS202T-E/SS β Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $4.62 | $4.62 |
| 10 | $4.2 | $42.00 |
| 100 | $3.75 | $375.00 |
| 500 | $3.38 | $1,690.00 |
| 1,000 | $3.05 | $3,050.00 |
DSPIC33EP16GS202T-E/SS Overview
A digital signal controller combines the computational core of a 16-bit microcontroller with the DSP capability of a signal processor: a modified Harvard architecture with separate program and data memory spaces and buses, a hardware barrel shifter, DSP multiply-accumulate instructions, and fast interrupt handling. In the power-management hierarchy, the dsPIC33EP16GS202 belongs to the SMPS dsPIC33EP16GS family, positioned specifically for digital switch-mode power supply (SMPS) control rather than general-purpose embedded control.
Key features include a 16-bit dsPIC33EP core running up to 70 MIPS (60 MIPS per DigiKey listing), on-chip Flash program memory of 16KB, multiple PWM outputs designed for power conversion topologies, a high-speed 12-bit ADC for current and voltage feedback sampling, and Functional Safety (FuSa) package support. The device operates from a 3.3V supply.
Architecturally, the dsPIC33EPXXGS202 family features separate program and data memory spaces and dedicated buses, enabling deterministic instruction fetch while the DSP engine performs MAC operations on sampled feedback signals. This makes it possible to close current loops at switching frequencies of hundreds of kilohertz in the same silicon that manages housekeeping, communication, and fault protection.
Typical applications include interleaved power factor correction (PFC), digital AC-DC and DC-DC power supplies, LED drivers, battery chargers, and solar micro-inverters. Microchip's Interleaved PFC reference design based on this family operates from a universal input voltage range and produces a single high-voltage DC output up to 350W of power.
When designing with this controller, budget the 16KB Flash carefully - advanced digital power algorithms with compensation and communication stacks can consume most of it; the 32KB and 64KB GS202 variants in the same footprint provide an upgrade path.
This page synthesizes distributor listings, drop-in alternatives within the GS202 family, and practical design guidance not found in the manufacturer datasheet, with pricing referenced as of 2026-09-24.
Drop-in alternatives for DSPIC33EP16GS202T-E/SS β 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-E/SS (same form factor and footprint) β differing in Operating Temperature, Package.
Quick Comparison Tool β Select alternative parts for side-by-side comparison:
DSPIC33EP16GS202-E/SS
β Drop-Inπ Reference alternative (not in catalog)
DSPIC33EP16GS202T-I/SS
β Drop-Inβ In Stock
$3.58 / Unit
View Datasheet βDSPIC33EP16GS202-I/SS
β Drop-Inβ In Stock
$2.79 / Unit
View Datasheet βDSPIC33EP32GS202T-E/SS
β Drop-In β οΈ εζ°εΎ ιͺθ―π Reference alternative (not in catalog)
DSPIC33EP64GS202T-E/SS
β Drop-In β οΈ εζ°εΎ ιͺθ―π Reference alternative (not in catalog)
DSPIC33EP16GS202T-E/SS Maximum Ratings & Electrical Characteristics
| Core | 16-bit dsPIC33EP |
| Program Memory Size | 16KB (16K x 8) Flash |
| Maximum Performance | 70 MIPS (60 MIPS per DigiKey listing) |
| Supply Voltage | 3.3 V |
| Package | 28-SSOP |
| Mounting Type | Surface Mount |
| Operating Temperature | -40C to +125C (E grade) |
| Packaging Type | Tape & Reel (T suffix) |
| Product Family | dsPIC 33EP, SMPS Digital Power DSC |
| Functional Safety Support | Yes (FuSa) |
| Automotive Qualification | AEC-Q100 (per DigiKey listing) |
| Data Path Width | 16 bit |
| Barrel Shifter | Yes |
| Boundary Scan | Yes |
| Technology | CMOS |
| Target Application | Digital power applications (SMPS) |
| RoHS Status | Compliant |
DSPIC33EP16GS202T-E/SS 28-ssop Pin Configuration Guide
Pin configuration for DSPIC33EP16GS202T-E/SS (28-ssop 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-E/SS.
Refer to the datasheet for full pin configuration.
Typical Applications
DSPIC33EP16GS202T-E/SS is suitable for 6 applications: Interleaved Power Factor Correction (PFC), Digital AC-DC Power Supplies, LED Drivers and Solid-State Lighting, Battery Chargers, Solar Micro-Inverters and DC-DC Converters, Automotive Digital Power Subsystems.
Interleaved Power Factor Correction (PFC)
The DSPIC33EP16GS202T-E/SS is the control engine for Microchip's Interleaved PFC reference design, which operates from a universal input voltage range and produces a single high-voltage DC output up to 350W. The DSC's DSP engine and high-speed PWM peripherals implement current-mode control for each interleaved phase, sampling inductor current and bus voltage through the on-chip ADC and updating duty cycle every switching cycle. Its 70 MIPS-class throughput provides the deterministic loop bandwidth needed for low input-current distortion and high power factor across universal input, while the 16-bit core simultaneously manages housekeeping, fault protection, and startup sequencing. The same firmware architecture scales directly to higher-power interleaved stages.
Recommended
Digital AC-DC Power Supplies
In digitally controlled AC-DC converters, the DSPIC33EP16GS202T-E/SS closes the voltage and current loops in firmware, replacing analog compensation networks with configurable digital filters. Its 16KB Flash stores the control law, soft-start, burst-mode, and protection state machines, while dedicated PWM peripherals generate phase-shifted or complementary drive signals for flyback, forward, and LLC topologies. The extended -40C to +125C temperature rating and AEC-Q100 qualification allow deployment in industrial and automotive power supplies without component derating debates. Because control parameters are firmware, one hardware BOM can serve multiple output-voltage and power-rating SKUs, reducing inventory cost and qualification effort for power supply manufacturers.
Recommended
LED Drivers and Solid-State Lighting
Digital LED driver control demands precise current regulation, dimming resolution, and rapid fault response - all strengths of the DSPIC33EP16GS202T-E/SS. The high-speed PWM supports high-resolution duty and frequency adjustment for smooth dimming down to very low currents, while the 12-bit ADC feedback path samples LED current each cycle to maintain constant-current accuracy despite forward-voltage drift with temperature. Its -40C to +125C rating suits enclosed luminaires and automotive headlamp drivers, and AEC-Q100 qualification opens certified automotive lighting designs. The 28-SSOP package fits compact driver boards, and firmware-based control lets one platform support dimmable, DALI-ready, and fixed-output variants through software configuration alone.
Recommended
Battery Chargers
Multi-chemistry battery charging requires staged control - constant current, constant voltage, termination, and safety timers - that the DSPIC33EP16GS202T-E/SS implements entirely in firmware. The DSC samples charge current and pack voltage each PWM cycle via its ADC, executing CC/CV transitions and coulomb-style termination logic within its 16KB Flash alongside protection routines for over-temperature and over-voltage conditions. The DSP capability handles per-cycle current limiting in the buck or boost charger power stage with 70 MIPS-class headroom. The E-grade -40C to +125C range supports automotive on-board chargers and outdoor industrial charging equipment where ambient extremes are routine, with AEC-Q100 qualification simplifying automotive customer approval.
Recommended
Solar Micro-Inverters and DC-DC Converters
Panel-level power electronics such as micro-inverters and MPPT boost converters benefit from the DSPIC33EP16GS202T-E/SS's combination of DSP throughput and digital power peripherals. The part executes maximum-power-point-tracking algorithms while simultaneously closing the fast current loop of the power stage - the 70 MIPS-class core and dedicated multiply-accumulate hardware keep both loops deterministic. Its compact 28-SSOP footprint suits the size-constrained, thermally aggressive enclosures mounted behind solar modules, where the -40C to +125C rating is essential. Digital control also enables per-panel telemetry and grid-support features via firmware updates, extending product life without hardware revisions in deployed installations.
Recommended
Automotive Digital Power Subsystems
With AEC-Q100 qualification and Functional Safety (FuSa) support confirmed in DigiKey's listing, the DSPIC33EP16GS202T-E/SS targets automotive digital power: LED headlamp drivers, DC-DC converters for infotainment and ADAS domains, and auxiliary power stages. The extended -40C to +125C operating range covers under-hood and passenger-compartment thermal profiles, and the 28-SSOP surface-mount package withstands automotive reflow profiles. Firmware-based control allows one qualified controller platform to serve multiple tier-1 programs with different power ratings, while boundary-scan support aids production test. Designers should document safety mechanisms - watchdog, clock monitoring, and voltage supervision - to leverage the part's FuSa positioning within their ISO-oriented development flow.
Recommended
Recommended Products Summary
Engineering reference data for DSPIC33EP16GS202T-E/SS β comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | DSPIC33EP16GS202-E/SS | DSPIC33EP16GS202T-I/SS | DSPIC33EP16GS202-I/SS | DSPIC33EP32GS202T-E/SS | DSPIC33EP64GS202T-E/SS |
|---|---|---|---|---|---|---|
| Package | 28-SSOP | 28-SSOP - same | 28-SSOP - same | 28-SSOP - same | 28-SSOP - same | 28-SSOP - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Flash Memory | 16KB | 16KB | 16KB | 16KB | 32KB | 64KB |
| Performance | Up to 70 MIPS | Up to 70 MIPS | Up to 70 MIPS | Up to 70 MIPS | Up to 70 MIPS | Up to 70 MIPS |
| Operating Temperature | -40C to +125C (E) | -40C to +125C (E) | -40C to +85C (I) | -40C to +85C (I) | -40C to +125C (E) | -40C to +125C (E) |
| Packaging | Tape & Reel (T) | Tube/Tray | Tape & Reel (T) | Tube/Tray | Tape & Reel (T) | Tape & Reel (T) |
| AEC-Q100 Qualified | Yes | Yes | No (industrial grade) | No (industrial grade) | Yes (E grade) | Yes (E grade) |
| Drop-in Compatible | - | Yes - identical | Yes - pin-to-pin | Yes - pin-to-pin | Yes - same footprint, more Flash | Yes - same footprint, more Flash |
Key Differentiators
- Extended temperature and AEC-Q100 automotive grade (vs DSPIC33EP16GS202T-I/SS)
- Flash headroom upgrade without respin (vs DSPIC33EP16GS202-E/SS)
- Digital-power-optimized peripheral set (vs Generic PIC24 MCUs)
Design Notes
Verify the package suffix before any substitution: /SS is 28-SSOP, /MM is 28-pin QFN, and /SO is 28-SOIC - all three carry the same die but completely different land patterns. A BOM change from /SS to /MM requires a PCB respin. Also confirm the temperature suffix: E grade (-40C to +125C) and I grade (-40C to +85C) are not interchangeable in automotive designs that specify E per the drawing.
Budget the 16KB Flash at design start. A closed-loop digital power supply with soft-start, fault protection, and serial telemetry typically consumes 8-14KB. If your compensation library and communication stack approach the limit, design the PCB with the shared 28-SSOP footprint and qualify DSPIC33EP32GS202T-E/SS or DSPIC33EP64GS202T-E/SS as pre-approved alternate parts - they are pin-compatible and require no layout change.
For digital power layouts, keep the ADC feedback traces (current shunt and output voltage sense) away from PWM switching nodes and gate-drive traces to prevent noise aliasing into control loops. Place a local 0.1uF decoupling capacitor at each VDD pin of the 28-SSOP package plus a bulk 4.7-10uF capacitor, and use a solid ground plane under the controller. Route the PWM outputs with adequate spacing from the 350V-class primary-side nodes used in PFC applications.
Estimated: the 28-SSOP package thermal performance depends on copper pour area; at 70 MIPS with heavy DSP activity the core current rises, so provide at least 1 square inch of connected copper on the controller's ground plane in sealed enclosures targeting the full -40C to +125C range. For automotive ambient extremes, derate the junction margin and validate thermal performance in the final enclosure rather than relying on datasheet free-air values.
Compliance Information
AEC-Q100 automotive qualification and Functional Safety (FuSa) classification per DigiKey product listing. RoHS compliance typical for current Microchip dsPIC33EP production but not explicitly stated in retrieved data.
