DSPIC30F2020-20E/MM - 16-bit DSC, 30MIPS SMPS MCU | Microchip
MPN: DSPIC30F2020-20E/MM ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $6.39 | $6.39 |
| 10 | $5.75 | $57.50 |
| 100 | $5.11 | $511.00 |
| 500 | $4.58 | $2,290.00 |
| 1,000 | $4.1 | $4,100.00 |
DSPIC30F2020-20E/MM Overview
A Digital Signal Controller (DSC) is a hybrid class of microcontroller that combines a traditional MCU's deterministic control peripherals with a DSP engine capable of executing single-cycle MAC operations on 16-bit data. Within the power-management hierarchy, a DSC sits between an MCU and a DSP, occupying the same role as a general-purpose MCU plus a dedicated hardware multiplier/accumulator; the dsPIC30F family is specifically optimized for switch-mode power supply (SMPS) topologies, multi-loop digital control, and digital power conversion.
Key features include three on-chip PWM generators with up to 8 outputs, 10-bit ADC with up to 1 Msps sampling, three 16-bit timers/counters, an I2C peripheral, an SPI peripheral, and a UART module. Operating voltage spans 2.5 V to 5.5 V (typical 3.3 V or 5 V rails), industrial temperature range is -40C to +125C, and the device is built on a CMOS process optimized for power-conversion firmware loops.
The 30F2020 is engineered for digital SMPS control: it can run multiple control loops per PWM period, sample the ADC within a few hundred nanoseconds of a PWM edge, and update duty-cycle registers mid-period. The architecture supports interleaved PFC, phase-shifted full-bridge, and synchronous buck topologies with sub-microsecond loop latency.
Typical applications include AC/DC power supplies, DC/DC converter control, uninterruptible power systems, digital PFC, induction cooking, and digitally controlled lighting ballasts. The device also fits motor control for small BLDC and PMSM motors below 200 W.
When designing firmware for this part, place the ADC sampling trigger immediately after the PWM edge in software to minimize phase lag, and use the DSC's hardware accumulator to avoid overflow on long-running integrators. Ensure decoupling is placed within 5 mm of every VDD/VSS pair to keep switching noise off the analog rail.
This page synthesizes distributor pricing, drop-in alternative listings, and practical firmware/layout design notes not consolidated in any single manufacturer or distributor page.
Drop-in alternatives for DSPIC30F2020-20E/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 DSPIC30F2020-20E/MM (same form factor and footprint) — differing in ADC, Core Architecture, Package, Timers, I/O Pins.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
DSPIC30F2010T-20E/MM
✅ Drop-In✓ In Stock
$3.98 / Unit
View Datasheet →DSPIC30F2020T-20E/MM
✅ Drop-In📋 Reference alternative (not in catalog)
DSPIC30F2020-30I/MM
✅ Drop-In✓ In Stock
$2.65 / Unit
View Datasheet →DSPIC30F2010T-30I/MM
✅ Drop-In✓ In Stock
$3.92 / Unit
View Datasheet →DSPIC30F2011T-20E/MM
✅ Drop-In📋 Reference alternative (not in catalog)
DSPIC30F2020-20E/MM Maximum Ratings & Electrical Characteristics
| Core Architecture | 16-bit dsPIC30F DSC (DSP + MCU) |
| Instruction Throughput | 30 MIPS (at 120 MHz internal, 4x PLL) |
| Program Memory (Flash) | 12 KB (4K x 24 words) |
| Data RAM | 512 bytes |
| Operating Voltage | 2.5 V to 5.5 V |
| I/O Pins | 21 |
| Package | 28-pin QFN-S (6x6 mm) with exposed pad |
| ADC | 10-bit, up to 1 Msps |
| PWM Outputs | Up to 8 outputs across 3 PWM generators |
| Timers | 3 x 16-bit timers/counters |
| Communication Peripherals | 1 x UART, 1 x SPI, 1 x I2C |
| Operating Temperature | -40C to +125C (industrial) |
| Mounting Type | Surface Mount |
| MSL Level | MSL3 (168 hours) |
| RoHS Status | Compliant |
DSPIC30F2020-20E/MM Pin Configuration
| Pin 1 | MCLR — Master Clear (reset) input, active low |
| Pin 2 | AN0/VREF+/RA0 — Analog input 0 / positive voltage reference / Port A bit 0 |
| Pin 3 | AN1/VREF-/RA1 — Analog input 1 / negative voltage reference / Port A bit 1 |
| Pin 4 | RA2 — Port A bit 2 / general digital I/O |
| Pin 5 | RA3 — Port A bit 3 / general digital I/O |
| Pin 6 | RA4 — Port A bit 4 / general digital I/O |
| Pin 7 | VDD — Positive supply (2.5 V to 5.5 V) |
| Pin 8 | VSS — Ground reference |
| Pin 9 | OSC1/CLKI — Crystal oscillator input or external clock input |
| Pin 10 | OSC2/CLKO — Crystal oscillator output or clock output |
| Pin 11 | RB0 — Port B bit 0 / general digital I/O |
| Pin 12 | RB1 — Port B bit 1 / general digital I/O |
| Pin 13 | RB2 — Port B bit 2 / general digital I/O |
| Pin 14 | RB3 — Port B bit 3 / general digital I/O |
| Pin 15 | PWM1L/RC0 — PWM1 low-side output / Port C bit 0 |
| Pin 16 | PWM1H/RC1 — PWM1 high-side output / Port C bit 1 |
| Pin 17 | PWM2L/RC2 — PWM2 low-side output / Port C bit 2 |
| Pin 18 | PWM2H/RC3 — PWM2 high-side output / Port C bit 3 |
| Pin 19 | RC4 — Port C bit 4 / general digital I/O |
| Pin 20 | RC5 — Port C bit 5 / general digital I/O |
| Pin 21 | AN8/RB8 — Analog input 8 / Port B bit 8 |
| Pin 22 | AN9/RB9 — Analog input 9 / Port B bit 9 |
| Pin 23 | RD0 — Port D bit 0 / general digital I/O |
| Pin 24 | RD1 — Port D bit 1 / general digital I/O |
| Pin 25 | PWM3L/RD2 — PWM3 low-side output / Port D bit 2 |
| Pin 26 | PWM3H/RD3 — PWM3 high-side output / Port D bit 3 |
| Pin 27 | VDD — Positive supply (2.5 V to 5.5 V) |
| Pin 28 | VSS — Ground reference |
| Pin 29 | EP — Exposed thermal pad (must be soldered to PCB ground plane) |
Typical Applications
DSPIC30F2020-20E/MM is suitable for 6 applications: Digital PFC (Power Factor Correction), Phase-Shifted Full-Bridge DC/DC Converter, Uninterruptible Power Supply (UPS) Controller, Induction Cooker Control, Digitally Controlled LED Driver, Small BLDC / PMSM Motor Drive.
Digital PFC (Power Factor Correction)
The DSPIC30F2020-20E/MM is well-suited to single-loop digital power factor correction in 200-800 W AC/DC converters. Its three PWM generators can drive the boost switch with complementary gating for the synchronous rectifier, while the 10-bit ADC at 1 Msps samples the rectified mains voltage and inductor current at the PWM midpoint. The DSC engine executes single-cycle MAC operations, allowing the controller to compute a new duty cycle every PWM period below 50 kHz switching frequency without CPU saturation. Designers typically run the average-current-mode control loop with a 10-20 kHz crossover, well within the 30 MIPS budget.
Recommended
Phase-Shifted Full-Bridge DC/DC Converter
For medium-power isolated DC/DC converters in the 300 W to 1.5 kW range, the DSPIC30F2020-20E/MM drives all four primary-side MOSFETs through its center-aligned PWM generator with programmable dead time and phase shift. The ADC samples the transformer primary current at the valley of the resonant transition, enabling adaptive dead-time optimization. With 12 KB of Flash, control algorithms such as adaptive dead-time compensation plus soft-start plus primary-side regulation fit comfortably. For higher-power designs needing more headroom, the DSPIC30F2010T-20E/MM doubles the Flash budget.
Recommended
Uninterruptible Power Supply (UPS) Controller
In line-interactive and double-conversion UPS designs up to 1 kVA, the DSPIC30F2020-20E/MM handles battery charging control, inverter PWM generation, and load-share current-loop feedback on a single device. The 21 I/O pins accommodate status LEDs, fan control, relay drivers, and UART-based status reporting to a supervisory MCU. Its -40C to +125C industrial temperature range covers enclosed UPS installations in hot environments. The I2C peripheral can interface with battery monitor ICs such as the BQ76930 family for cell balancing coordination.
Recommended
Induction Cooker Control
The DSPIC30F2020-20E/MM provides the high-resolution PWM and ADC timing required for resonant-tank induction heating at 20-50 kHz. Its DSC engine executes zero-crossing detection on the resonant capacitor voltage and adjusts the switching frequency to maintain the target pan temperature within a few milliseconds of latency. The 30 MIPS throughput allows simultaneous implementation of pan-detection, over-temperature protection, and IGBT fault handling without timing violations. Multiple PWM outputs support half-bridge or full-bridge resonant topologies.
Recommended
Digitally Controlled LED Driver
For dimmable LED drivers from 50 W to 300 W, the DSPIC30F2020-20E/MM implements constant-current control with 0-10 V or DALI dimming input. Its PWM generators produce the high-frequency switching waveform while a low-frequency PWM modulates the average LED current for dimming. The 10-bit ADC monitors output current and temperature, enabling thermal foldback protection. The UART peripheral allows integration with building-automation networks for status and diagnostics reporting.
Recommended
Small BLDC / PMSM Motor Drive
The DSPIC30F2020-20E/MM can drive BLDC and PMSM motors below 200 W in sensorless or Hall-sensor trapezoidal commutation. Its 8 PWM outputs drive the three-phase inverter with programmable dead time to prevent shoot-through, and the 10-bit ADC samples DC-bus current for cycle-by-cycle current limiting. The 30 MIPS throughput supports sensorless back-EMF zero-crossing detection at rotor speeds above 1,000 RPM. For higher-power motors above 200 W requiring 12-bit ADC resolution, the dsPIC33F family provides a more capable alternative.
Recommended
Recommended Products Summary
Engineering reference data for DSPIC30F2020-20E/MM — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | DSPIC30F2010T-20E/MM | DSPIC30F2020T-20E/MM | DSPIC30F2020-30I/MM | DSPIC30F2011T-20E/MM |
|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 28-pin QFN-S (6x6 mm) | 28-pin QFN-S (6x6 mm) - same | 28-pin QFN-S (6x6 mm) - same | 28-pin QFN-S (6x6 mm) - same | 28-pin QFN-S (6x6 mm) - same |
| Temperature Grade | -40C to +125C (E suffix) | -40C to +125C (E suffix) | -40C to +125C (E suffix) | -40C to +125C (I suffix) | -40C to +125C (E suffix) |
| Packaging Form | Tube | Tape & Reel | Tape & Reel | Tube | Tape & Reel |
Key Differentiators
- Single-cycle DSP MAC with deterministic control loop latency (vs PIC16F1829-I/P (general-purpose MCU without DSP engine))
- Integrated 3-generator PWM with center-aligned, programmable dead time (vs DSPIC30F2011T-20E/MM (same family, adds CAN but lower Flash headroom))
- 12 KB Flash + 512 bytes RAM for SMPS firmware stacks (vs DSPIC30F2020-30I/MM (same Flash/RAM but industrial speed bin))
Design Notes
Estimated: The 28-QFN-S package requires a 6x6 mm PCB land pattern with a central thermal pad approximately 4x4 mm in size. Connect the exposed pad (EP, pin 29) directly to the ground plane through at least 9 thermal vias (0.3 mm drill, 0.5 mm pitch). Place both VDD pins (7 and 27) within 5 mm of 100 nF decoupling capacitors, and place one 10 uF bulk capacitor within 10 mm of the supply pins to handle PWM-edge current spikes.
The DSC's ADC input leakage at temperatures above 100 C can shift the sample-and-hold charge; use a low-impedance buffer op-amp (e.g., MCP6002) on the analog inputs if the source impedance exceeds 2 kohm. Also note that the PWM fault input is shared with a digital I/O pin - configure it as a digital input first, then enable the PWM fault function in firmware to avoid spurious shutdowns during boot-up.
Estimated: At a 120 MHz internal clock, the dsPIC30F2020 generates switching edges with 8 ns rise/fall times, which can couple into adjacent analog traces if they run parallel for more than 10 mm. Keep analog input traces at least 3 mm away from PWM output traces and use a ground guard ring around sensitive analog signals. Place the 10-bit ADC reference bypass capacitor (typically 100 nF) within 3 mm of the VREF+ pin.
For thermal management in continuous full-load operation, the 28-QFN-S package dissipates roughly 0.5 W at 30 MIPS full activity. With a JEDEC EIA/JESD51 4-layer test board, theta_JA is approximately 32 C/W; ensure a 1 square inch copper pour plus thermal vias to keep the junction below 110 C in 85 C ambient operation. For higher power, use a top-side copper spreader or attach a small heatsink.
Compliance Information
RoHS and REACH compliance per Microchip product declarations. Not AEC-Q100 qualified - this part is industrial grade only. For automotive applications, migrate to a dsPIC33F AEC-Q100 qualified variant.
