DSPIC30F2020-30I/SO - 16-bit SMPS DSC, 30 MIPS, 12KB Flash | Microchip
MPN: DSPIC30F2020-30I/SO ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $9.29 | $9.29 |
| 10 | $8.45 | $84.50 |
| 100 | $7.18 | $718.00 |
| 500 | $6.45 | $3,225.00 |
| 1,000 | $5.82 | $5,820.00 |
DSPIC30F2020-30I/SO Overview
A Digital Signal Controller is a hybrid device that combines the deterministic interrupt response and peripheral integration of a microcontroller with the computational throughput of a DSP. DSCs occupy the conceptual middle ground between microcontrollers (low cost, simple control) and full Digital Signal Processors (parallel multiply-accumulate, bare-metal pipeline). The dsPIC30F family is positioned by Microchip as a "DSC" for embedded control loops that also require signal processing - notably digital power conversion, motor control, and high-speed sensor conditioning. Within the broader taxonomy, the dsPIC30F2020 sits under DSC -> MCU with DSP -> 16-bit embedded controller -> semiconductor IC.
The DSPIC30F2020 features a 6-channel 10-bit ADC with 1 Msps conversion rate, dedicated PWM modules supporting complementary outputs with programmable dead-time, 21 digital I/O pins, and a 2.5 V to 5.5 V single-supply operating range. These peripherals are specifically tuned for closed-loop digital control of buck, boost, flyback, and PFC power stages. The 30 MIPS instruction throughput (40 ns instruction cycle at 30 MHz oscillator with 4x PLL) enables up to four independent SMPS control loops at typical 100 kHz switching frequencies.
The internal architecture pairs a modified Harvard bus with single-cycle MAC and barrel shifter for high-speed coefficient multiplication in PID and state-space compensators. On-chip peripherals include a 16-bit timer/capture/PWM engine, I2C, SPI, UART, and a high-speed analog comparator with 10 ns response - all directly applicable to peak current-mode control and slope compensation. The 28-SOIC wide package (7.50 mm body width) supports hand-soldering and standard 1.27 mm pitch SOIC sockets for prototype work.
Typical applications include digitally controlled AC/DC converters, isolated and non-isolated DC/DC modules, Power Factor Correction (PFC) stages, uninterruptible power supplies, and digital lighting ballasts. The wide operating range (-40 C to +85 C industrial grade, "I" suffix) suits industrial SMPS designs.
When designing with this DSC, route the analog and digital ground returns separately and join them at the exposed thermal pad beneath the IC. Place the Vcap decoupling capacitor within 5 mm of the dedicated core voltage pin and use 100 nF + 10 uF bulk capacitance on VDD. Source current ratings assume 25 mA per I/O pin - exceeding this risks latch-up. Note that this part is in active production and recommended for new SMPS designs.
This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet.
Drop-in alternatives for DSPIC30F2020-30I/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 DSPIC30F2020-30I/SO (same form factor and footprint) — differing in Core Architecture, Package, Operating Voltage Range, Packaging, Product Family.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
DSPIC30F2020-30I/MM
✅ Drop-In✓ In Stock
$2.65 / Unit
View Datasheet →DSPIC30F2010-30I/SO
✅ Drop-In✓ In Stock
$2.35 / Unit
View Datasheet →DSPIC30F2010T-30I/MM
✅ Drop-In✓ In Stock
$3.92 / Unit
View Datasheet →DSPIC30F2011-20E/SO
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
DSPIC30F2011T-20E/SO
✅ Drop-In✓ In Stock
$3.85 / Unit
View Datasheet →DSPIC30F2020-30I/SO Maximum Ratings & Electrical Characteristics
| Core Architecture | dsPIC30F 16-bit DSC (MCU + DSP) |
| Program Memory (Flash) | 12 KB |
| Data RAM | 512 bytes |
| Instruction Throughput | 30 MIPS |
| Operating Frequency | 30 MHz (40 ns instruction cycle, 4x PLL from 7.5 MHz oscillator) |
| Supply Voltage (VDD) | 2.5 V to 5.5 V |
| I/O Pins | 21 |
| ADC | 10-bit, 6 channels, up to 1 Msps |
| PWM Channels | 4 channels with complementary outputs and programmable dead-time |
| Analog Comparator | Internal, 10 ns response (peak current-mode control) |
| Communication Peripherals | UART, SPI, I2C |
| Timers | 16-bit timer/capture/PWM modules |
| Package | 28-pin SOIC wide (0.295" / 7.50 mm body) |
| Operating Temperature | -40 C to +85 C (Industrial, "I" suffix) |
| Mounting Type | Surface Mount |
| RoHS Status | Compliant (lead-free) |
DSPIC30F2020-30I/SO Pin Configuration
| Pin 1 | EMUD/AN0/VREF+/CN2/RB0 — I/O port B bit 0 / analog input 0 / positive reference / ICSP emulation data |
| Pin 2 | AN1/VREF-/CN3/RB1 — I/O port B bit 1 / analog input 1 / negative reference |
| Pin 3 | AN2/SS1/CN4/RB2 — I/O port B bit 2 / analog input 2 / SPI1 slave select |
| Pin 4 | AN3/CN5/RB3 — I/O port B bit 3 / analog input 3 |
| Pin 5 | AN4/CN6/RB4 — I/O port B bit 4 / analog input 4 |
| Pin 6 | AN5/CN7/RB5 — I/O port B bit 5 / analog input 5 |
| Pin 7 | OSC1/CLKI/CN30/RA0 — Oscillator crystal input / external clock input |
| Pin 8 | OSC2/CLKO/CN29/RA1 — Oscillator crystal output / clock output |
| Pin 9 | PWM1L/OC1/RD0 — PWM1 low-side output / output compare 1 |
| Pin 10 | PWM1H/OC2/RD1 — PWM1 high-side output / output compare 2 |
| Pin 11 | PWM2L/OC3/RD2 — PWM2 low-side output / output compare 3 |
| Pin 12 | PWM2H/OC4/RD3 — PWM2 high-side output / output compare 4 |
| Pin 13 | PWM3L/RC13 — PWM3 low-side output |
| Pin 14 | PWM3H/RC14 — PWM3 high-side output |
| Pin 15 | PWM4L/SDA1/CN8/RC1 — PWM4 low-side output / I2C data |
| Pin 16 | PWM4H/SCL1/CN9/RC2 — PWM4 high-side output / I2C clock |
| Pin 17 | C1OUT/T2CK/CN1/RC3 — Comparator 1 output / Timer 2 clock |
| Pin 18 | C2OUT/SDO1/CN18/RC4 — Comparator 2 output / SPI1 serial data out |
| Pin 19 | SDI1/CN19/RC5 — SPI1 serial data in |
| Pin 20 | SCK1/CN20/RC6 — SPI1 serial clock |
| Pin 21 | U1RX/CN21/RC7 — UART1 receive |
| Pin 22 | U1TX/CN22/RC8 — UART1 transmit |
| Pin 23 | FLTA/INT0/CN23/RA8 — PWM fault input / external interrupt 0 |
| Pin 24 | EMUC/SOSCO/T1CK/CN24/RA9 — ICSP emulation clock / Timer 1 clock / secondary oscillator out |
| Pin 25 | EMUD1/SOSCI/CN25/RB9 — ICSP emulation data 1 / secondary oscillator in |
| Pin 26 | MCLR — Master clear reset (active low) |
| Pin 27 | VSS — Ground reference |
| Pin 28 | VDD — Positive supply voltage (2.5 V to 5.5 V) |
Typical Applications
DSPIC30F2020-30I/SO is suitable for 6 applications: Digital PFC Power Supply, Digitally Controlled Isolated DC/DC Converter, Uninterruptible Power Supply (UPS) Controller, AC/DC Converter with Active Clamp Reset, Digitally Controlled LED Lighting Driver, Industrial Motor Drive Controller (Auxiliary).
Digital PFC Power Supply
The DSPIC30F2020-30I/SO is well-suited for single-stage and interleaved Power Factor Correction converters operating at 50-400 Hz line frequency with boost topology control loops at 20-100 kHz. The 1 Msps 10-bit ADC captures input voltage, input current, and output voltage samples fast enough for average current-mode PFC, while the complementary PWM outputs (PWM1L/PWM1H through PWM4L/PWM4H) drive the boost MOSFET/IGBT pair with programmable dead-time to prevent shoot-through. The 30 MIPS core runs the full PI controller plus feedforward waveform in real time, and the analog comparator's 10 ns response time supports cycle-by-cycle peak current limiting required by safety standards. Firmware is typically written in MPLAB X with the Microchip digital power library.
Recommended
Digitally Controlled Isolated DC/DC Converter
The DSPIC30F2020-30I/SO controls isolated DC/DC converter topologies including half-bridge, full-bridge, and active-clamp forward converters at 100-500 kHz switching frequencies. Its 30 MIPS throughput executes PID or state-space compensators in under 1 us per loop cycle, while the 21 I/O pins handle gate drive signals, sync rectifier control, and primary-side current sensing via the internal analog comparator. The 2.5-5.5 V VDD range simplifies auxiliary supply design from converter bias windings, and the SOIC-28 wide package supports hand-soldering for prototype work. Use the UART or I2C peripheral for PMBus-style monitoring of output voltage, current, and temperature to a host supervisor.
Recommended
Uninterruptible Power Supply (UPS) Controller
The DSPIC30F2020-30I/SO serves as the main digital controller in low-to-medium-power UPS systems managing the inverter stage, battery charging, and line-interactive transfer logic. The 30 MIPS core runs the inverter sinusoidal PWM (typically 50/60 Hz fundamental with 16-20 kHz carrier) along with battery State-of-Charge algorithms and AC line synchronization through the analog comparator and capture inputs. The 12 KB Flash accommodates the full inverter control loop plus housekeeping code, while 512 bytes RAM is sufficient for the real-time computation buffers. Industrial -40 C to +85 C operation suits outdoor cabinet installations.
Recommended
AC/DC Converter with Active Clamp Reset
The DSPIC30F2020-30I/SO drives the active clamp reset timing in forward and asymmetric half-bridge AC/DC converters, where programmable dead-time and complementary PWM outputs are critical to reset the transformer core and recycle magnetizing energy. The internal analog comparator monitors the auxiliary winding for valley-voltage detection, enabling variable-frequency quasi-resonant switching that improves efficiency at light loads. The 10-bit ADC samples output voltage and current at 1 Msps, closing the voltage-mode control loop at typical 50 kHz crossover. Its 2.5-5.5 V VDD supply runs directly from the auxiliary bias winding with minimal regulation.
Recommended
Digitally Controlled LED Lighting Driver
The DSPIC30F2020-30I/SO powers digital LED drivers with closed-loop current regulation for architectural, commercial, and stage lighting where dimming curves and color mixing require precise PWM outputs. Four PWM channels with programmable dead-time drive buck, boost, or SEPIC LED driver stages, while the 1 Msps ADC samples high-side current-sense amplifiers at 100 kHz bandwidth for flicker-free dimming. The 30 MIPS core handles dimming algorithms (DALI, DMX, 0-10 V analog), thermal foldback via internal temperature sensor, and LED fault detection. Industrial temperature grade supports outdoor luminaire designs.
Recommended
Industrial Motor Drive Controller (Auxiliary)
The DSPIC30F2020-30I/SO functions as the auxiliary controller or supervisor in industrial motor drives, managing housekeeping tasks such as gate driver housekeeping, fault monitoring, communication, and slow-speed outer control loops. While main motor commutation is typically handled by dedicated FOC algorithms, this DSC provides redundant safety monitoring, encoderless startup sequences, and field-oriented closed-loop outer speed/torque loops at lower update rates. Its SPI/UART/I2C peripherals link to the main MCU and operator panels, while the ADC monitors bus voltage, motor temperature, and current sensor health. The wide-body SOIC-28 package simplifies field replacement and hand rework.
Recommended
Recommended Products Summary
Engineering reference data for DSPIC30F2020-30I/SO — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | DSPIC30F2020-30I/MM | DSPIC30F2010-30I/SO | DSPIC30F2010T-30I/MM | DSPIC30F2011-20E/SO | DSPIC30F2011T-20E/SO |
|---|---|---|---|---|---|---|
| Package | SOIC-28 (SO) wide 7.50 mm | QFN-S-28 (MM) 6x6 mm - drop-in with PCB change | SOIC-28 (SO) wide - same | QFN-S-28 (MM) 6x6 mm - drop-in with PCB change | SOIC-28 (SO) wide - same | SOIC-28 (SO) wide - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Core Architecture | dsPIC30F 16-bit DSC, 30 MIPS | dsPIC30F 16-bit DSC, 30 MIPS (same) | dsPIC30F 16-bit DSC, 30 MIPS (same) | dsPIC30F 16-bit DSC, 30 MIPS (same) | dsPIC30F 16-bit DSC, 20 MIPS (-33%) | dsPIC30F 16-bit DSC, 20 MIPS (-33%) |
| Program Flash | 12 KB | 12 KB (same) | 24 KB (+100%) | 24 KB (+100%) | 24 KB (+100%) | 24 KB (+100%) |
| Data RAM | 512 bytes | 512 bytes (same) | 1 KB (+100%) | 1 KB (+100%) | 1.5 KB (+200%) | 1.5 KB (+200%) |
| ADC Resolution | 10-bit, 6 channels, 1 Msps | 10-bit, 6 ch, 1 Msps (same) | 10-bit, 6 ch, 1 Msps (same) | 10-bit, 6 ch, 1 Msps (same) | 10-bit, 8 ch, 1 Msps (+33% channels) | 10-bit, 8 ch, 1 Msps (+33% channels) |
| PWM Channels | 4 pairs (8 outputs) with dead-time | 4 pairs (same) | 4 pairs (same) | 4 pairs (same) | 8 pairs (16 outputs, +100%) | 8 pairs (16 outputs, +100%) |
| Operating Temperature | -40 C to +85 C (Industrial) | -40 C to +85 C (Industrial) | -40 C to +85 C (Industrial) | -40 C to +85 C (Industrial) | -40 C to +125 C (Extended E suffix) | -40 C to +125 C (Extended E suffix) |
| Approximate Unit Price (qty 1) | $9.29 | $9.50 (similar) | $11.50 (+24%) | $11.70 (+26%) | $13.20 (+42%) | $13.20 (+42%) |
Key Differentiators
- Lowest-cost SMPS DSC option with peak current-mode hardware support (vs DSPIC30F2010-30I/SO)
- Higher 30 MIPS throughput vs lower-tier F2011-20E (vs DSPIC30F2011-20E/SO)
- SOIC-28 wide package supports hand-soldering and socketed prototypes (vs DSPIC30F2020-30I/MM)
Design Notes
The DSPIC30F2020 requires a dedicated Vcap decoupling capacitor on the VCAP/VDDCORE pin (typically 10 uF X7R ceramic + 100 nF in parallel) within 5 mm of the IC. Place a bulk 10 uF plus 100 nF ceramic decoupling capacitor on VDD (pin 28) to handle switching transients from the SMPS power stage. Estimated: at 30 MIPS peak activity, the IC draws up to 50 mA from VDD; use wider PCB traces (>=0.5 mm) to avoid voltage droop.
Route analog and digital ground returns separately and join them at a single point near the IC. Place the ADC input traces away from PWM gate-drive traces to minimize digital switching noise coupling into analog samples - the ADC's 10-bit resolution is only 4 mV per LSB at 3.3 V VREF. Keep the analog VREF+ and VREF- traces short and surround them with ground pour. The exposed pad (if applicable) must be soldered for thermal and electrical ground continuity.
When using the internal analog comparator for peak current-mode control, keep the comparator input traces (<=10 mm) and add an RC low-pass filter (typically 1 kohm + 100 pF) on the current-sense input to suppress switching noise spikes that can cause false triggering. The 10 ns comparator response is fast enough for cycle-by-cycle current limiting at 500 kHz switching frequencies, but inadequate noise filtering causes sub-cycle oscillation. Tie unused comparator inputs to VSS through 10 kohm resistors.
Do not program the Flash above the maximum write/erase cycles (typically 10,000 cycles for dsPIC30F) without considering wear-leveling. For applications requiring frequent parameter updates, store tunable coefficients in EEPROM or backup Flash sectors and use the dsPID self-programming feature with care. Always enable the watchdog timer (WDT) in safety-critical SMPS designs - a code lockup in a closed-loop power supply can cause catastrophic output overvoltage within milliseconds. Estimated: at 30 MIPS, a single WDT timeout is ~33 ms.
Compliance Information
RoHS compliant per Microchip product page. Industrial temperature grade -40 C to +85 C. Not AEC-Q100 qualified (automotive) - refer to dsPIC33CH or dsPIC33CK automotive families for AEC-Q100 SMPS DSCs.
