DSPIC33EP16GS202T-E/SO - 16-Bit 60 MIPS DSC 16KB Flash | Microchip
MPN: DSPIC33EP16GS202T-E/SO ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $4.62 | $4.62 |
| 10 | $4.16 | $41.60 |
| 100 | $3.7 | $370.00 |
| 500 | $3.33 | $1,665.00 |
| 1,000 | $2.96 | $2,960.00 |
DSPIC33EP16GS202T-E/SO Overview
A digital signal controller combines the compute throughput of a DSP core with the peripheral integration and ease of use of a microcontroller. In the power-management hierarchy, the DSC sits above a generic MCU for control loops: it closes voltage- and current-mode feedback loops in switched-mode power supplies, replacing analog control ICs with firmware-defined control. The dsPIC33 family, and specifically the GS-series 'digital power' devices, is Microchip's platform for this SMPS control role.
Key differentiating features include the interconnected high-speed PWM module, whose outputs and triggers can be routed directly to the ADC and comparators with minimal CPU latency - critical for cycle-by-cycle current limiting in converters. The 60 MIPS 16-bit core with DSP instructions (barrel shifter, MAC) executes proportional-integral control loops at switching frequencies in the hundreds of kHz range.
Architecturally, the device uses a modified Harvard 16-bit core with pipelined instruction execution, single-cycle multiply-accumulate, and hardware divide support. The Flash-based program memory allows field firmware updates, an advantage over fixed-function analog controllers. The -E temperature variant is qualified for -40C to +125C ambient operation, suiting industrial power supplies operating in enclosed, high-temperature environments.
Typical applications include interleaved power factor correction (Microchip's 350W Interleaved PFC reference design targets this family), DC-DC converter control, digital lighting ballasts, battery chargers, and UPS systems. The on-chip PGA and comparators reduce external component count in current-sense signal chains.
Design consideration: budget the Flash carefully - 16KB accommodates a compensator and housekeeping tasks, but complex state machines or communication stacks may require the 32KB or 64KB GS202 family variants in the same footprint.
This page synthesizes distributor inventory data, drop-in alternatives, and practical design notes not found in the manufacturer datasheet.
Drop-in alternatives for DSPIC33EP16GS202T-E/SO — 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/SO (same form factor and footprint) — differing in Core Architecture, Package, Product Family, Max CPU Speed, Functional Safety Support.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
DSPIC33EP16GS202T-I/SO
✅ Drop-In📋 Reference alternative (not in catalog)
DSPIC33EP32GS202-I/SO
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
$2.9 / Unit
View Datasheet →DSPIC33EP64GS202-I/SO
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
DSPIC33EP16GS202T-E/SO Maximum Ratings & Electrical Characteristics
| Core | dsPIC33EP 16-bit |
| Max CPU Speed | 60 MIPS |
| Program Memory Size | 16KB (16K x 8) Flash |
| Package | 28-SOIC |
| Operating Temperature Range | -40C to +125C (E grade) |
| Product Family | dsPIC33EP16GS202 (digital power, FuSa capable) |
| Key Peripherals | High-speed PWM, ADC with PGA, comparators |
| Core Architecture | 16-bit modified Harvard with DSP instructions |
| Mounting Type | Surface Mount |
| Packaging | Tape & Reel (T suffix) |
DSPIC33EP16GS202T-E/SO 28-soic Pin Configuration Guide
Pin configuration for DSPIC33EP16GS202T-E/SO (28-soic 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/SO.
Refer to the datasheet for full pin configuration.
Typical Applications
DSPIC33EP16GS202T-E/SO is suitable for 6 applications: Interleaved Power Factor Correction, DC-DC Converter Digital Control, Digital Lighting Ballasts and LED Drivers, Battery Chargers, Uninterruptible Power Supplies (UPS), Industrial Motor Control and Automation.
Interleaved Power Factor Correction
Microchip's 350W Interleaved PFC reference design is built on the dsPIC33EP16GS202 family, converting universal AC input to a regulated high-voltage DC output. The controller's interconnected high-speed PWM generates two interleaved converter phases with precise phase shifting, minimizing input ripple current and reducing EMI filter size. The ADC with PGA samples the input current directly across a shunt, while on-chip comparators enforce cycle-by-cycle overcurrent protection in hardware, independent of firmware latency. The 60 MIPS core executes the average-current-mode compensation loop at switching frequencies in the tens of kHz with ample margin. Firmware-defined control also enables adaptive inrush limiting and brownout handling that analog PFC controllers cannot match.
Recommended
DC-DC Converter Digital Control
In synchronous buck, boost, and flyback converters, the DSPIC33EP16GS202T-E/SO closes voltage- and current-mode feedback loops entirely in firmware. The high-speed PWM module supports complementary outputs with programmable dead time, duty-cycle update rates matched to the switching period, and fault clamping. The ADC's programmable gain amplifier lets a low-value shunt feed the converter directly without an external op-amp, saving board area and error terms. The 60 MIPS DSP core with single-cycle MAC instructions computes PI or 3p3z compensators deterministically each cycle. The 16KB Flash accommodates a full compensator, soft-start, and protection state machine, with the 32KB family variant as a same-footprint upgrade path.
Recommended
Digital Lighting Ballasts and LED Drivers
Smart LED drivers and HID ballasts use the DSPIC33EP16GS202T-E/SO to regulate output current while supporting dimming protocols and fault reporting. The interconnected high-speed PWM produces both the main power-conversion drive and independent dimming PWM channels, and its hardware interconnects allow instant phase shifts needed for burst dimming without visible flicker. The ADC with PGA monitors switch current for constant-current regulation, and comparators provide short-circuit shutdown within one switching cycle. The -40C to +125C E-grade rating suits enclosed fixtures where ambient temperature near the controller regularly exceeds 85C, a condition that would disqualify the -I industrial grade variant.
Recommended
Battery Chargers
Multi-chemistry battery chargers benefit from the DSPIC33EP16GS202T-E/SO's blend of fast control and supervisory intelligence: the PWM module and ADC handle the CC/CV power stage loop at high switching frequency, while the 16-bit core implements charge-state machines, termination detection, and cell balancing logic in firmware. On-chip comparators flag overcurrent conditions hardware-fast during fault events such as shorted cells. The extended -40C to +125C temperature range covers charging circuits mounted near heat-generating power stages. Microchip's ecosystem of switch-mode charge reference designs for dsPIC33 reduces development time, and ICSP programming permits field updates to charging profiles.
Recommended
Uninterruptible Power Supplies (UPS)
In line-interactive and double-conversion UPS units, the DSPIC33EP16GS202T-E/SO controls the inverter bridge and transfer logic simultaneously. Its interconnected high-speed PWM generates synchronized sinusoidal drive with programmable dead time, while the ADC with PGA samples output voltage and battery current for waveform regulation and fuel-gauging. The 60 MIPS core sustains both the inverter control loop and housekeeping tasks with DSP MAC instructions. The -E grade -40C to +125C rating addresses the elevated internal temperatures typical of UPS enclosures. Firmware-based control further enables grid-forming features and communication-based monitoring that fixed-function analog UPS controllers cannot provide.
Recommended
Industrial Motor Control and Automation
Small BLDC and PMSM drives use the DSPIC33EP16GS202T-E/SO for six-step and field-oriented control in the 28-SOIC footprint. The high-speed PWM's complementary outputs and dead-time insertion drive a three-phase gate stage, the ADC with PGA samples phase currents, and comparators provide hardware overcurrent trips. The 60 MIPS core with barrel shifter executes FOC mathematics including Park and inverse-Park transforms within the PWM period. The -40C to +125C E-grade rating survives drive enclosures near thermal limits. Microchip's motor-control libraries for the dsPIC33EP family provide sensorless start-up algorithms, shortening time to production for fan, pump, and actuator designs.
Recommended
Recommended Products Summary
Engineering reference data for DSPIC33EP16GS202T-E/SO — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | DSPIC33EP16GS202T-I/SO | DSPIC33EP32GS202-I/SO | DSPIC33EP64GS202-I/SO |
|---|---|---|---|---|
| Package | 28-SOIC | 28-SOIC - same | 28-SOIC - same | 28-SOIC - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| CPU Speed | 60 MIPS | 60 MIPS | 60 MIPS | 60 MIPS |
| Program Memory (Flash) | 16KB (16K x 8) | 16KB (16K x 8) | 32KB | 64KB |
| Operating Temperature | -40C to +125C (E grade) | -40C to +85C (I grade) | -40C to +85C (I grade) | -40C to +85C (I grade) |
| High-Speed PWM / ADC / PGA / Comparators | Yes (interconnected) | Yes (interconnected) | Yes (interconnected) | Yes (interconnected) |
| Pin Compatibility | dsPIC33EPXXGS202 28-SOIC pinout | Pin-to-pin identical | Pin-to-pin identical | Pin-to-pin identical |
Key Differentiators
- Extended -40C to +125C temperature rating (vs DSPIC33EP16GS202T-I/SO)
- Lowest-cost entry in the same drop-in family (vs DSPIC33EP32GS202-I/SO)
- Purpose-built digital power peripheral set (vs Generic 16-bit MCUs in SOIC-28)
Design Notes
Reserve a 5-pin ICSP header (MCLR, VDD, GND, PGD, PGC) on every board using this DSC. Per Microchip's dsPIC33EPXXGS202 Flash Programming Specification (70005192B), these pins are shared with standard I/O on the 28-SOIC package, so series resistors of 100-470 ohm on PGD/PGC isolate the programmer from peripheral loads without affecting runtime operation. This enables field firmware updates and compensator tuning after production - a major advantage of Flash-based DSCs over fixed-function analog power controllers.
Digital power firmware on a 60 MIPS DSC is only as good as its analog front end. Route the shunt-to-PGA Kelvin traces away from the high-speed PWM gate lines on the 28-SOIC footprint; gate transitions of several volts per nanosecond capacitively couple into current-sense inputs and corrupt cycle-by-cycle sampling. Use the ADC's simultaneous or triggered sampling aligned to the PWM module's hardware trigger point (typically at the center of the on-time) so that sampling lands away from switching noise edges.
Budget Flash conservatively: 16KB is sufficient for a PI/3p3z compensator, soft-start, and protection state machine, but engineers frequently overflow it when adding communication protocols or fault logging. Because DSPIC33EP32GS202-I/SO and DSPIC33EP64GS202-I/SO are pin-to-pin drop-in compatible in the same 28-SOIC footprint, layout reuse is free - but note the -I variants are rated only to +85C, so high-temperature boards must stay on the -E grade and cannot simply be swapped upward. Verify temperature grade before any family upgrade.
Compliance Information
DigiKey categorizes this part under Microchip's Functional Safety (FuSa) portfolio. Specific RoHS/REACH/lead-free certificates for this ordering code must be confirmed on Microchip's product page or via distributor material declarations.
