dsPIC33EP16GS504T-E/ML - 16-Bit 60 MIPS DSC 16KB Flash QFN-44 | Microchip
MPN: DSPIC33EP16GS504T-E/ML ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $3.95 | $3.95 |
| 10 | $3.55 | $35.50 |
| 100 | $3.16 | $316.00 |
| 500 | $2.84 | $1,420.00 |
| 1,000 | $2.55 | $2,550.00 |
DSPIC33EP16GS504T-E/ML Overview
A digital signal controller combines the compute capability of a 16-bit digital signal processor with the peripheral integration and control peripherals of a microcontroller, sitting in the product hierarchy between a general-purpose MCU and a dedicated DSP. In the digital power ecosystem, a DSC executes the control loops of switch-mode power supplies, replacing analog control ICs with programmable firmware while retaining hard real-time response.
Key features of the dsPIC33EP GS family include dedicated high-speed PWM modules purpose-built for switch-mode power supply (SMPS) topologies, on-chip high-speed ADCs for current and voltage feedback sampling, DSP-engine multiply-accumulate instructions for digital control loop math, and internal fast RC oscillators. The GS50x sub-family is explicitly marketed by Microchip for digital power conversion such as AC-DC and DC-DC power supplies.
The 60 MIPS core executes the control loop at switching frequencies typical of modern SMPS designs, while the dedicated PWM peripherals offer complementary, edge-aligned and center-aligned modes with dead-time insertion - critical for half-bridge, full-bridge and LLC converters. The 16KB FLASH supports compact, deterministic control firmware; the -40C to +125C extended temperature grade (E suffix) suits automotive and industrial environments.
Typical applications include interleaved power factor correction (PFC), AC-DC power supplies, DC-DC converters, digital lighting ballasts, battery chargers and solar micro-inverters. Microchip publishes an interleaved PFC reference design for this family operating from universal input voltage up to 350W output.
Design consideration: budget FLASH carefully - at 16KB, avoid linking large middleware stacks and prefer hand-optimized assembly or compiler-optimized control-loop routines; verify per-pin mapping against the 44-QFN datasheet pin diagrams before layout.
This page synthesizes distributor pricing, same-brand drop-in alternatives, and practical design notes not found in the manufacturer datasheet.
Drop-in alternatives for DSPIC33EP16GS504T-E/ML — 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 DSPIC33EP16GS504T-E/ML (same form factor and footprint) — differing in Functional Safety Support, Maximum CPU Speed, Packaging, Product Family, Qualification.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
DSPIC33EP16GS504T-I/ML
✅ Drop-In✓ In Stock
$2.55 / Unit
View Datasheet →DSPIC33EP16GS504-E/ML
✅ Drop-In📋 Reference alternative (not in catalog)
DSPIC33EP16GS504-I/ML
✅ Drop-In📋 Reference alternative (not in catalog)
DSPIC33EP32GS504T-E/ML
✅ Drop-In✓ In Stock
$3.47 / Unit
View Datasheet →DSPIC33FJ32MC104T-E/ML
✅ Drop-In📋 Reference alternative (not in catalog)
DSPIC33EP16GS504T-E/ML Maximum Ratings & Electrical Characteristics
| Core Architecture | 16-bit dsPIC33EP DSC |
| Max CPU Speed | 60 MIPS |
| Program Memory (FLASH) | 16 KB (16K x 8) |
| Package | 44-QFN (8x8 mm), exposed pad |
| Mounting Type | Surface Mount |
| Number of Terminals | 44 |
| Product Family | dsPIC33EP16GS504 (SMPS & Digital Power Conversion DSC) |
| Qualification | AEC-Q100 automotive |
| Functional Safety Support | Yes (FuSa) |
| Operating Temperature Range | -40C to +125C (E grade) |
| Peripherals | High-speed PWM for SMPS, high-speed ADC, DSP engine |
| Target Applications | Digital power conversion, SMPS, PFC |
| Packaging | Tape and Reel (T suffix) |
DSPIC33EP16GS504T-E/ML 44-qfn (8x8 mm), exposed pad Pin Configuration Guide
Pin configuration for DSPIC33EP16GS504T-E/ML (44-qfn (8x8 mm), exposed pad 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 DSPIC33EP16GS504T-E/ML.
Refer to the datasheet for full pin configuration.
Typical Applications
DSPIC33EP16GS504T-E/ML 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 and HID/LED Ballasts, Battery Chargers and Wireless Charging, Solar Micro-Inverters and Renewable Power Conversion.
Interleaved Power Factor Correction (PFC)
The dsPIC33EP16GS504T-E/ML directly addresses interleaved PFC, a topology Microchip explicitly supports with a published reference design for this family producing a single high-voltage DC output up to 350W from universal AC input. The 60 MIPS DSP core with multiply-accumulate instructions executes the inner current loop and outer voltage loop at switching-relevant rates, while the high-speed PWM peripherals generate phase-interleaved gate signals that cancel input ripple current. The on-chip high-speed ADC samples inductor current and bus voltage synchronously with the PWM period, minimizing control-loop latency. The E-grade -40C to +125C rating and AEC-Q100 qualification make it suitable for automotive on-board chargers and industrial AC-DC front ends where hot ambient conditions are routine.
Recommended
AC-DC Switch-Mode Power Supplies
For flyback, forward and LLC AC-DC converters, the dsPIC33EP16GS504T-E/ML replaces analog control ICs with programmable firmware, enabling adaptive burst mode, fault logging and digital compensation that analog parts cannot offer. According to Microchip, the GS50x sub-family offers features supporting common multi-loop digital SMPS topologies. The dedicated high-speed PWM provides complementary outputs with programmable dead-time insertion - essential for bridge topologies - and cycle-by-cycle current limiting via fast analog comparators. The 16KB FLASH is sufficient for a single-converter control stack with supervisory code. Using one programmable DSC across multiple power-supply platforms amortizes firmware development and allows field tuning of loop coefficients without hardware changes.
Recommended
DC-DC Converters and Point-of-Load Regulation
In board-level DC-DC conversion, the dsPIC33EP16GS504T-E/ML executes voltage-mode or peak-current-mode loops for buck and boost stages with the 60 MIPS core, updating duty cycle each PWM cycle. The high-speed ADC samples the output voltage mid-conversion for low noise, and the DSP engine performs PID or type-III compensator arithmetic in a deterministic cycle count - important for stability analysis and functional-safety arguments. Digital control permits output-voltage telemetry and sequencing coordinated with system processors over I2C/SPI/UART. For automotive 12V and 48V rails, the AEC-Q100 qualification and -40C to +125C E grade remove the need for separate qualification parts, simplifying the bill of materials across vehicle and industrial variants.
Recommended
Digital Lighting and HID/LED Ballasts
Electronic lamp ballasts and high-power LED drivers need resonant or constant-current control with precise frequency sweep and fault shutdown - capabilities the GS50x PWM subsystem provides natively. The dsPIC33EP16GS504T-E/ML's high-speed PWM supports frequency, phase and duty-cycle updates within a single PWM cycle, enabling ignition sweeps and burst dimming. The fast ADC and comparators implement lamp-current regulation and open/short protection in firmware with cycle-by-cycle limiting as backup. The 16KB FLASH accommodates ballast control plus DALI or PWM dimming interfaces. The E-grade temperature range suits enclosed luminaires, and AEC-Q100 qualification supports automotive interior-lighting drivers requiring documented reliability.
Recommended
Battery Chargers and Wireless Charging
Multi-chemistry battery chargers require staged charging profiles (trickle, constant current, constant voltage), temperature-qualified limits and safety termination - all naturally implemented in the dsPIC33EP16GS504T-E/ML firmware with its ADC, PWM and communication peripherals. The 60 MIPS core runs charging state machines plus converter control concurrently, while on-chip UART or I2C reports status to a host. The FuSa support and AEC-Q100 qualification of the GS family are valuable for automotive wireless-power transmitters, where functional-safety documentation may be requested. Digital control enables adaptive tuning of a wireless-charging resonant converter across coupling conditions, something fixed-frequency analog controllers cannot do, improving efficiency across the full alignment range.
Recommended
Solar Micro-Inverters and Renewable Power Conversion
Micro-inverters combine MPPT, DC-DC boosting and DC-AC inversion under one controller - a workload the dsPIC33EP16GS504T-E/ML handles for single-panel converters with its 60 MIPS DSP core and multi-channel high-speed PWM. MPPT algorithms (perturb-and-observe, incremental conductance) execute alongside grid-current control loops in the 16KB FLASH when code is kept lean. DSP multiply-accumulate support accelerates filtering of sampled panel and grid signals. The -40C to +125C E grade tolerates rooftop ambient extremes, and FuSa support aids grid-code compliance documentation. Microchip's digital-power ecosystem, including the interleaved PFC reference design, provides a validated firmware starting point that shortens renewable-converter development cycles considerably.
Recommended
Recommended Products Summary
Engineering reference data for DSPIC33EP16GS504T-E/ML — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | DSPIC33EP16GS504T-I/ML | DSPIC33EP16GS504-E/ML | DSPIC33EP32GS504T-E/ML | DSPIC33FJ32MC104T-E/ML |
|---|---|---|---|---|---|
| Package | 44-QFN (8x8 mm) | 44-QFN (8x8 mm) - same | 44-QFN (8x8 mm) - same | 44-QFN (8x8 mm) - same | 44-QFN - same family footprint |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| FLASH Program Memory | 16 KB | 16 KB | 16 KB | 32 KB | 32 KB |
| Core Performance | 16-bit, 60 MIPS | 16-bit, 60 MIPS | 16-bit, 60 MIPS | 16-bit, 60 MIPS | 16-bit, lower MIPS (dsPIC33FJ core) |
| Temperature Range | -40C to +125C (E grade) | -40C to +85C (I grade) | -40C to +125C (E grade) | -40C to +125C (E grade) | -40C to +125C (E grade) |
| AEC-Q100 Automotive Qualification | Yes | Yes | Yes | Yes | Yes (automotive family) |
| Packaging / Delivery | Tape & Reel (T suffix) | Tape & Reel | Tray / Tube | Tape & Reel | Tape & Reel |
| Target Application Focus | SMPS & digital power conversion | SMPS & digital power conversion | SMPS & digital power conversion | SMPS & digital power conversion | Motor control (dsPIC33FJ MC family) |
Key Differentiators
- Extended -40C to +125C E temperature grade in stock on tape and reel (vs DSPIC33EP16GS504T-I/ML)
- Dedicated SMPS/digital-power PWM subsystem (vs DSPIC33FJ32MC104T-E/ML)
- Pin-compatible FLASH upgrade path within the same footprint (vs DSPIC33EP32GS504T-E/ML)
Design Notes
The 44-QFN (8x8 mm) ML package has an exposed thermal pad that must be soldered to a grounded copper pour for both thermal dissipation and a low-inductance ground return. Use a 4x4 (or per-datasheet recommendation) array of thermal vias under the pad to tie it to internal ground planes. Power-supply switching nodes under the DSC should be minimized: keep the SMPS power loop on a separate area of the board and route PWM gate-drive traces short to limit coupling into ADC sense lines. Verify the exact land-pattern dimensions against the Microchip 44-QFN drawing before generating the PCB footprint.
The T suffix means tape and reel only - most distributors stock full reels, so prototype buyers should confirm cut-tape availability or order the non-T dsPIC33EP16GS504-E/ML tray version. Temperature grades are frequently confused: E grade is -40C to +125C and I grade is -40C to +85C; substituting I for E in a hot power-supply enclosure risks out-of-spec operation. Because the part is FuSa-supported, do not casually swap variants in safety-certified designs - any substitution must be re-validated against the safety assessment. Note also that DigiKey lists 60 MIPS while Mouser's summary text mentions 70MIPS - use the official Microchip datasheet value as authoritative.
In digital power applications, decouple the DSC supply independently from the power stage: place a 100 nF ceramic capacitor at each VDD pin pair plus a bulk 4.7-10 uF capacitor, separated from the switching-converter input capacitors. The high-speed ADC reference should be derived from a clean, quiet supply or reference - never from the noisy converter output rail - or control-loop accuracy will suffer. Recommended: tie analog and digital grounds at a single point near the exposed pad to prevent gate-drive return currents from corrupting ADC measurements.
Compliance Information
AEC-Q100 automotive qualification and Functional Safety (FuSa) support confirmed from DigiKey and GlobalSpec product descriptions. RoHS/REACH/lead-free status was not present in the verified data - confirm via Microchip product page or distributor certificate.