DSPIC33EP16GS502T-E/2N - 16-Bit 60MIPS DSC 16KB | Microchip
MPN: DSPIC33EP16GS502T-E/2N ✓ Active| Qty | Unit Price | Extended |
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DSPIC33EP16GS502T-E/2N Overview
A digital signal controller combines the compute throughput of a DSP with the peripheral integration and control-oriented architecture of a microcontroller. Within the power-management semiconductor hierarchy, the DSC sits above general-purpose MCUs for control-loop tasks: it closes high-bandwidth feedback loops for switch-mode power supplies, replacing analog control chips with programmable, firmware-updatable control. The dsPIC33EP GS series is Microchip's SMPS and digital-power-conversion DSC family.
Key features of the GS50X family include interconnected high-speed PWM peripherals for multi-phase and complementary drive topologies, an on-chip analog front end with ADC, programmable gain amplifier (PGA) and comparators, and hardware DSP multiply-accumulate for fast proportional-integral control loops. These peripherals interconnect so that PWM faults, comparator trips and ADC triggers operate with minimal CPU latency, a decisive advantage in transient-heavy power stages.
Technically, the dsPIC33EP core executes an enhanced 16-bit instruction set with DSP addressing modes at up to 60 MIPS. The interconnected PWM module supports complementary, push-pull, and phase-shifted outputs with dead-time insertion, while the analog block feeds conversion results directly into control software or comparator-based hardware limits, enabling overcurrent protection without CPU intervention.
Typical applications include AC-DC power supplies with power factor correction, digital lighting ballasts, battery chargers, DC-DC converters, and solar micro-inverters. Microchip's Interleaved PFC reference design, based on the dsPIC33EP16GS502, produces a single high-voltage DC output up to 350W from a universal input range, demonstrating the part's fit for SMPS front ends.
When designing with this controller, budget flash carefully: 16KB accommodates one or two closed-loop control schemes plus communication, but complex multi-protocol systems should step up to the pin-compatible DSPIC33EP64GS502. Use the E-grade temperature rating for extended-temperature industrial environments.
This page synthesizes distributor availability, pin-compatible memory-step alternatives, and digital-power design guidance not found together in the manufacturer datasheet.
Drop-in alternatives for DSPIC33EP16GS502T-E/2N — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
DSPIC33EP64GS502T-E/2N
✅ Drop-In✓ In Stock
$3.73 / Unit
View Datasheet →DSPIC33EP64GS502-E/2N
✅ Drop-In✓ In Stock
$3.1 / Unit
View Datasheet →DSPIC33EP16GS502T-E/MX
✅ Drop-In📋 Reference alternative (not in catalog)
DSPIC33EP16GS502T-E/2N Maximum Ratings & Electrical Characteristics
| Core Size | 16-bit |
| Core Processor | dsPIC 33EP |
| Speed (MIPS) | 60 MIPS |
| Program Memory Size | 16KB (16K x 8) FLASH |
| RAM Size | 2KB |
| Number of I/O | 21 |
| Package | 28-UQFN (6x6 mm) |
| Mounting Type | Surface Mount |
| Operating Temperature | -40C to +125C (E grade) |
| Qualification | AEC-Q100 (Automotive) |
| Functional Safety Support | Yes (FuSa) |
| Application Optimization | SMPS / Digital Power Conversion |
| Special Peripherals | Interconnected High-Speed PWM, ADC, PGA, Comparators |
| Program Memory Type | FLASH |
| Packaging | Tape & Reel (T suffix) |
DSPIC33EP16GS502T-E/2N 28-uqfn (6x6 mm) Pin Configuration Guide
Pin configuration for DSPIC33EP16GS502T-E/2N (28-uqfn (6x6 mm) 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 DSPIC33EP16GS502T-E/2N.
Refer to the datasheet for full pin configuration.
Typical Applications
DSPIC33EP16GS502T-E/2N is suitable for 6 applications: Interleaved Power Factor Correction (PFC), AC-DC Switch-Mode Power Supplies, DC-DC Converters and Point-of-Load Regulation, Digital Lighting Ballasts and LED Drivers, Battery Chargers, Solar Micro-Inverters.
Interleaved Power Factor Correction (PFC)
The DSPIC33EP16GS502T-E/2N is purpose-built for PFC front ends: its interconnected high-speed PWM generates multi-phase complementary drive with dead-time insertion, while the fast ADC and comparators close current loops with minimal latency. Microchip's own Interleaved PFC reference design is based on this dsPIC33EP16GS502 and produces up to 350W of high-voltage DC output from a universal AC input range. The PGA lets a single ADC channel serve multiple sense nodes with programmable gain, reducing external signal conditioning. Control firmware implements average-current-mode PFC with the 60 MIPS DSP core executing the compensation mathematics every switching cycle.
Recommended
AC-DC Switch-Mode Power Supplies
For digital AC-DC SMPS, the DSPIC33EP16GS502T-E/2N replaces analog control ICs with programmable control: the high-speed PWM module supports complementary and phase-shifted topologies with hardware fault trip via the comparator block, enabling cycle-by-cycle current limiting without CPU intervention. The 60 MIPS core runs voltage-mode or current-mode compensation at switching frequencies typical of flyback and forward converters. AEC-Q100 qualification and the -40C to +125C E-grade temperature rating make the part suitable for industrial and automotive-grade supply units where analog controllers lack diagnostics and adaptability.
Recommended
DC-DC Converters and Point-of-Load Regulation
In DC-DC and point-of-load converters, the DSPIC33EP16GS502T-E/2N delivers deterministic loop closure: ADC results triggered by the PWM module feed the DSP multiply-accumulate engine, allowing proportional-integral compensation to execute within a single switching period. Comparator outputs can override PWM duty instantly for overcurrent protection, a safety path independent of software. The 16KB FLASH holds a converter state machine plus PMBus-style telemetry for compact designs, and the 21 I/O pins support GPIO-based sequencing of upstream and downstream rails in multi-rail power trees.
Recommended
Digital Lighting Ballasts and LED Drivers
The DSPIC33EP16GS502T-E/2N fits digital ballast and LED driver control where dimming resolution and protection speed matter. The high-speed PWM resolution supports fine duty-cycle control for resonant half-bridge ballast topologies, and the ADC-plus-PGA front end samples lamp current and bus voltage without extra amplifiers. Fault comparators shut down PWM outputs within one PWM clock cycle on lamp-out or overcurrent conditions. Firmware flexibility allows one hardware platform to serve multiple wattage ratings, trimming bill-of-material variety, and the AEC-Q100 grade covers demanding luminaire thermal environments.
Recommended
Battery Chargers
Smart battery chargers benefit from the DSPIC33EP16GS502T-E/2N's combination of precise analog sensing and configurable PWM: the ADC with PGA tracks charge current and pack voltage with programmable gain, while PWM outputs drive buck or synchronous buck charge stages with complementary outputs and dead-time control. The 60 MIPS core implements CC/CV profiles, taper detection and temperature-qualified charging in firmware. Functional Safety (FuSa) support and AEC-Q100 qualification align the controller with automotive on-board charger subfunctions and industrial charging stations requiring documented development processes.
Recommended
Solar Micro-Inverters
Solar micro-inverters demand simultaneous MPPT computation and grid-synchronized inverter control - exactly the dual-DSP-loop workload the DSPIC33EP16GS502T-E/2N was designed for. The interconnected PWM and ADC block generates phase-shifted or complementary drive for the power stage while the 60 MIPS core runs maximum-power-point tracking algorithms each switching cycle. The E-grade -40C to +125C temperature range matches rooftop enclosure conditions, and cycle-by-cycle comparator protection guards against transformer saturation. The 16KB FLASH suits fixed single-topology firmware common in cost-optimized micro-inverter designs.
Recommended
Recommended Products Summary
Engineering reference data for DSPIC33EP16GS502T-E/2N — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | DSPIC33EP64GS502T-E/2N | DSPIC33EP64GS502-E/2N | DSPIC33EP16GS502T-E/MX |
|---|---|---|---|---|
| Package | 28-UQFN (6x6) | 28-UQFN (6x6) - same | 28-UQFN (6x6) - same | 28-UQFN (6x6) - same body code family, verify footprint |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Program Memory (FLASH) | 16KB (16K x 8) | 64KB (64K x 8) | 64KB (64K x 8) | 16KB (16K x 8) |
| Core Performance | 16-bit, 60 MIPS | 16-bit, 60 MIPS | 16-bit, 60 MIPS | 16-bit, 60 MIPS |
| AEC-Q100 Qualification | Yes | Yes | Yes | Yes |
| Functional Safety (FuSa) Support | Yes | Yes | Yes | Yes |
| Digital Power Peripherals | High-Speed PWM, ADC, PGA, Comparators | High-Speed PWM, ADC, PGA, Comparators | High-Speed PWM, ADC, PGA, Comparators | High-Speed PWM, ADC, PGA, Comparators |
| Packaging Option | Tape & Reel (T) | Tape & Reel (T) | Tray (non-taped) | Tape & Reel (T) |
Key Differentiators
- Optimized analog/PWM interconnect for digital power (vs DSPIC33EP16GS202T-E/SS)
- AEC-Q100 with FuSa support at 60 MIPS (vs DSPIC33EP64GS502T-E/2N)
- Memory scalability without redesign (vs DSPIC33EP64GS502-E/2N)
Design Notes
Decouple the VDD pin with a 0.1uF ceramic capacitor placed within 5 mm of the pin, plus a bulk 4.7uF-10uF capacitor per the dsPIC33EP family reference manual guidance. Because this DSC switches high dv/dt power stages, keep the digital VDD rail isolated from the noisy power-ground domain; a ferrite bead between the two grounds reduces injected noise into the ADC reference and prevents spurious comparator trips in the overcurrent protection path.
Route the PWM outputs to the gate drivers away from ADC sense traces to minimize crosstalk-induced sampling error. Use Kelvin connections for current-sense signals into the PGA inputs. The 28-UQFN 6x6 package has an exposed thermal pad - solder it to a grounded copper pour for both thermal relief and a low-inductance ground return, which is important when the comparator fault path must act within one PWM cycle.
The 16KB FLASH budget fills quickly once a communication stack (I2C/UART diagnostics) is added to the control loops - overflow linker errors late in development force a costly part-number change. Plan for the pin-compatible DSPIC33EP64GS502T-E/2N if firmware is expected to grow. Also confirm the exact ordering suffix: the /2N footprint must match your PCB land pattern; the /MX variant shares the die but requires footprint verification before substitution.
Compliance Information
AEC-Q100 automotive qualification and Functional Safety (FuSa) classification confirmed via DigiKey/Microchip USA product listings. RoHS/REACH/lead-free status not stated in provided data - verify on Microchip's official product page.
