DSPIC30F3011-20E/ML - 20 MIPS 16-bit DSC | 44-QFN Motor Control | Microchip
MPN: DSPIC30F3011-20E/ML ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $6.45 | $6.45 |
| 10 | $5.81 | $58.10 |
| 100 | $5.16 | $516.00 |
| 500 | $4.64 | $2,320.00 |
| 1,000 | $4.13 | $4,130.00 |
DSPIC30F3011-20E/ML Overview
A Digital Signal Controller (DSC) is a hybrid between a microcontroller and a digital signal processor; it combines deterministic MCU peripherals (timers, PWM, ADC) with a single-cycle MAC DSP engine, occupying the middle ground between an MCU and a full DSP. Within the broader taxonomy, the DSPIC30F3011 belongs to the dsPIC30F sub-family -> DSC -> microcontroller -> embedded processor -> semiconductor. This dual architecture enables field-oriented motor control (FOC) loops, digital PFC, and synchronous rectification in a single chip without external DSP glue logic.
Key features include 24 KB of Flash program memory, 1 KB of RAM, and 1 KB of auxiliary Flash for data EEPROM emulation. The 16-bit DSP engine executes a 16x16-bit MAC in a single cycle, while the on-chip peripherals include a 10-bit ADC with multiple S&H channels, multiple PWM modules with programmable dead-time, quadrature encoder interface, and UART/SPI/I2C communication blocks. The device supports 4.5V to 5.5V supply operation across an industrial -40C to +125C temperature range (the /E suffix indicates the extended temperature grade).
The DSPIC30F3011 uses a modified Harvard architecture with separate program and data buses for deterministic interrupt response. Its 20 MIPS performance is sufficient to implement sensorless FOC for BLDC/PMSM motors under 200 W, single-phase digital PFC boost converters, and synchronous buck/boost control loops at switching frequencies up to 100 kHz. On-chip peripherals are tuned for power conversion: the PWM module has configurable dead-time insertion, fault inputs, and dedicated ADC triggering to minimize software latency in critical loops.
Typical applications include brushless DC (BLDC) motor controllers, permanent-magnet synchronous motor (PMSM) drives, uninterruptible power supplies (UPS), digital PFC stages, solar micro-inverters, and industrial variable-frequency drives. The 44-QFN package provides 21 general-purpose I/O pins suitable for multi-phase inverter topologies where routing density matters.
A key design consideration: a 10uF + 0.1uF decoupling pair must be placed within 5 mm of the AVDD pin to keep ADC S&H noise within datasheet limits; failure to do so can corrupt current-sense sampling by several LSBs. For migration, Microchip documents the seamless path from this dsPIC30F to dsPIC33F and PIC24 devices in equivalent packages, which provides long-term lifecycle insurance for motor-control designs.
This page synthesizes distributor pricing, drop-in package alternatives, and design notes that go beyond the manufacturer datasheet to accelerate evaluation and sourcing.
Drop-in alternatives for DSPIC30F3011-20E/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 DSPIC30F3011-20E/ML (same form factor and footprint) — differing in Package, Operating Temperature, ADC, Core Architecture, Timers.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
DSPIC30F3011-30I/ML
✅ Drop-In📋 Reference alternative (not in catalog)
DSPIC30F3011T-20E/ML
✅ Drop-In✓ In Stock
$4.61 / Unit
View Datasheet →DSPIC30F3010-30I/ML
✅ Drop-In✓ In Stock
$4.45 / Unit
View Datasheet →DSPIC30F3010-20I/SO
✅ Drop-In ⚠️ 参数待验证✓ In Stock
$4.1 / Unit
View Datasheet →DSPIC30F3010T-30I/ML
✅ Drop-In ⚠️ 参数待验证✓ In Stock
$3.99 / Unit
View Datasheet →DSPIC30F3012-20I/ML
✅ Drop-In📋 Reference alternative (not in catalog)
DSPIC30F3011-20E/ML Maximum Ratings & Electrical Characteristics
| Product Family | dsPIC30F |
| Core Architecture | 16-bit DSC (modified Harvard, DSP + MCU) |
| Program Memory (Flash) | 24 KB |
| Data RAM | 1 KB |
| Auxiliary Flash (EEPROM emulation) | 1 KB |
| Performance | 20 MIPS |
| Supply Voltage | 4.5 V to 5.5 V |
| Operating Temperature | -40C to +125C (Extended grade, /E) |
| I/O Pins | 21 |
| Package | 44-lead QFN (8x8 mm) with exposed pad (ML) |
| Package Height | 0.90 mm |
| ADC | 10-bit, multiple sample-and-hold channels |
| PWM Modules | Motor-control PWM with programmable dead-time |
| Communication | UART, SPI, I2C |
| Quadrature Encoder Interface | Yes |
| Mounting Type | Surface Mount |
| RoHS Status | Compliant |
DSPIC30F3011-20E/ML Pin Configuration
| Pin 1 | AN0/VREF+/CVREF — Analog input 0 / positive voltage reference / comparator reference |
| Pin 2 | AN1/VREF- — Analog input 1 / negative voltage reference |
| Pin 3 | AN2 — Analog input 2 |
| Pin 4 | AN3 — Analog input 3 |
| Pin 5 | AVDD — Analog supply voltage |
| Pin 6 | AVSS — Analog ground |
| Pin 7 | MCLR — Master clear (reset) input |
| Pin 8 | OSC1/CLKI — Crystal oscillator input / external clock input |
| Pin 9 | OSC2/CLKO — Crystal oscillator output / clock output |
| Pin 10 | FLTA — PWM fault A input |
| Pin 11 | PWM1H — PWM1 high-side output |
| Pin 12 | PWM1L — PWM1 low-side output |
| Pin 13 | PWM2H — PWM2 high-side output |
| Pin 14 | PWM2L — PWM2 low-side output |
| Pin 15 | PWM3H — PWM3 high-side output |
| Pin 16 | PWM3L — PWM3 low-side output |
| Pin 17 | RC13 — General I/O / I2C clock (SCL) |
| Pin 18 | RC14 — General I/O / I2C data (SDA) |
| Pin 19 | VDD — Digital supply voltage |
| Pin 20 | VSS — Digital ground |
| Pin 21 | RB0 — General I/O |
| Pin 22 | RB1 — General I/O |
| Pin 23 | RB2 — General I/O |
| Pin 24 | RB3 — General I/O |
| Pin 25 | RB4 — General I/O |
| Pin 26 | RB5 — General I/O |
| Pin 27 | RB6 — General I/O / ICSP programming clock |
| Pin 28 | RB7 — General I/O / ICSP programming data |
| Pin 29 | RD0 — General I/O / QEI index |
| Pin 30 | RD1 — General I/O / QEI phase A |
| Pin 31 | RD2 — General I/O / QEI phase B |
| Pin 32 | RD3 — General I/O |
| Pin 33 | RD4 — General I/O |
| Pin 34 | RD5 — General I/O |
| Pin 35 | RD6 — General I/O |
| Pin 36 | RD7 — General I/O |
| Pin 37 | RF0 — General I/O / UART1 RX |
| Pin 38 | RF1 — General I/O / UART1 TX |
| Pin 39 | RF2 — General I/O / SPI clock |
| Pin 40 | RF3 — General I/O / SPI data out |
| Pin 41 | RF4 — General I/O / SPI data in |
| Pin 42 | RF5 — General I/O |
| Pin 43 | RF6 — General I/O |
| Pin 44 | EP — Exposed thermal pad (must be soldered to PCB ground) |
Typical Applications
DSPIC30F3011-20E/ML is suitable for 6 applications: Brushless DC (BLDC) Motor Control, Permanent Magnet Synchronous Motor (PMSM) FOC Drive, Switch-Mode Power Supply (SMPS) Digital Control, Uninterruptible Power Supply (UPS) Controller, Solar Micro-Inverter, Industrial Variable-Frequency Drive (VFD).
Brushless DC (BLDC) Motor Control
The DSPIC30F3011-20E/ML is well suited to sensorless and sensored BLDC motor drives under approximately 200 W. Its 20 MIPS throughput is sufficient to execute commutation tables at 30 kHz PWM with 10 kHz control-loop update rates, while the on-chip motor-control PWM module provides programmable dead-time insertion (configurable from 1.5 ns to 12 ns in 1.5 ns steps) to prevent shoot-through in the three-phase inverter. The integrated 10-bit ADC with multiple sample-and-hold channels allows simultaneous sampling of phase currents via a single shunt or two-shunt current-sense resistor, eliminating external analog sample-and-hold ICs. Hardware fault inputs on the PWM module shut down all outputs within 4 instruction cycles, which is critical for fast overcurrent protection. In a typical 24 V 5 A BLDC drive, the DSPIC30F3011-20E/ML runs the entire state machine including start-up ramps, back-EMF zero-crossing detection, and current limiting.
Recommended
Permanent Magnet Synchronous Motor (PMSM) FOC Drive
For PMSM field-oriented control, the DSPIC30F3011-20E/ML provides the DSP throughput required to execute Clarke and Park transforms, inverse transforms, and PI current loops within a single 100 us control period. The single-cycle 16x16 MAC DSP engine processes each Park transform in under 800 ns, leaving headroom for the Park-decoupled speed loop. The 24 KB Flash fits a complete sensorless FOC implementation including space-vector PWM generation, sliding-mode observer, and rotor alignment routines. The exposed thermal pad on the 44-QFN (ML) package keeps junction temperature below 100 C in enclosed IPM-style motor housings operating at full 5.5 V. Compared to general-purpose MCUs, the DSP engine removes the need for a co-processor, reducing BOM cost and PCB area.
Recommended
Switch-Mode Power Supply (SMPS) Digital Control
The DSPIC30F3011-20E/ML is designed for digital control loops in switch-mode power supplies, including digital PFC boost stages and synchronous buck/boost converters. Its high-speed 10-bit ADC can trigger from the PWM module with deterministic latency of 8 instruction cycles, enabling critical-conduction-mode (CrM) PFC and DCM/CCM transition control with sub-microsecond response. The 20 MIPS throughput supports average-current-mode control and constant on-time/constant off-time algorithms at switching frequencies up to 100 kHz. Auxiliary Flash provides 100k-cycle EEPROM emulation, allowing in-field update of voltage setpoints and protection thresholds without external EEPROM. The exposed thermal pad of the 44-QFN (ML) package spreads heat from continuous ADC sampling, allowing reliable operation in fanless industrial PSU designs.
Recommended
Uninterruptible Power Supply (UPS) Controller
The DSPIC30F3011-20E/ML can act as the central controller in small UPS systems up to approximately 1 kVA. Its motor-control PWM module generates the inverter-side 50/60 Hz SPWM with configurable dead-time, and its ADC samples the battery voltage, load current, and DC-bus voltage with 10-bit resolution and 500 ksps throughput. The on-chip UART provides RS-232/RS-485 connectivity for status reporting, while SPI and I2C enable communication with battery-monitoring front-end ICs. The 21 GPIO pins accommodate inverter control signals, status LEDs, relay drivers, and an external EEPROM interface without external mux logic. With 24 KB Flash, the firmware fits the complete inverter control loop, battery management state machine, and grid-synchronization PLL.
Recommended
Solar Micro-Inverter
The DSPIC30F3011-20E/ML is a strong fit for sub-300 W solar micro-inverters that convert a single PV panel's output to AC grid power. Its DSP engine handles MPPT (typically Perturb-and-Observe or Incremental Conductance) at 10 Hz update rates, while the PWM module drives the push-pull or full-bridge inverter stage with anti-islanding control. The 10-bit ADC simultaneously samples PV voltage, PV current, grid voltage, and grid current for power calculation and islanding detection. The auxiliary Flash stores panel-specific calibration data, and the 24 KB program memory fits the complete firmware including grid-synchronization PLL and anti-islanding algorithms. The extended temperature grade (-40C to +125C) ensures reliable operation in outdoor enclosures under direct sunlight.
Recommended
Industrial Variable-Frequency Drive (VFD)
The DSPIC30F3011-20E/ML can drive low-power three-phase AC induction motors in industrial variable-frequency drive applications up to approximately 1 HP. Its PWM module supports V/F scalar control and field-weakening modes with adjustable dead-time, while the QEI module reads shaft encoder feedback for closed-loop vector control at low speeds. The 24 KB Flash accommodates V/F curve tables, motor protection routines (overcurrent, overvoltage, undervoltage, stall), and RS-485 Modbus communication. The 21 GPIO handle three inverter phase signals, brake control, fault output, encoder input, and Modbus interface. The exposed thermal pad of the 44-QFN (ML) package keeps junction temperature below 100 C at full 5.5 V operation with continuous ADC activity.
Recommended
Recommended Products Summary
Engineering reference data for DSPIC30F3011-20E/ML — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | DSPIC30F3011-30I/ML | DSPIC30F3011T-20E/ML | DSPIC30F3010-30I/ML | DSPIC30F3012-20I/ML |
|---|---|---|---|---|---|
| Package | 44-QFN (ML) 8x8 mm | 44-QFN (ML) 8x8 mm - same | 44-QFN (ML) 8x8 mm - same | 44-QFN (ML) 8x8 mm - same | 44-QFN (ML) 8x8 mm - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Performance | 20 MIPS | 30 MIPS | 20 MIPS | 30 MIPS | 20 MIPS |
| Program Memory | 24 KB Flash | 24 KB Flash | 24 KB Flash | 24 KB Flash | 24 KB Flash |
| Temperature Grade | -40C to +125C (Extended /E) | -40C to +85C (Industrial /I) | -40C to +125C (Extended /E) | -40C to +85C (Industrial /I) | -40C to +85C (Industrial /I) |
| Supply Voltage | 4.5 V to 5.5 V | 4.5 V to 5.5 V | 4.5 V to 5.5 V | 4.5 V to 5.5 V | 4.5 V to 5.5 V |
| Data RAM | 1 KB | 1 KB | 1 KB | 1 KB | 1 KB |
| Motor-Control PWM | Yes (3 pairs with dead-time) | Yes | Yes | Yes | Yes (extended) |
Key Differentiators
- Extended temperature grade for high-temperature motor control (vs DSPIC30F3011-30I/ML)
- Same die as the 30I variant for firmware portability (vs DSPIC30F3010-30I/ML)
- 20 MIPS optimised for low-cost motor control BOM (vs DSPIC30F4012-30I/ML)
Design Notes
Place a 10 uF tantalum or ceramic capacitor in parallel with a 0.1 uF ceramic within 5 mm of the AVDD pin (pin 5) to keep ADC sample-and-hold noise within datasheet limits. The VDD pin (pin 19) requires its own 0.1 uF + 10 uF pair. Sharing the analog and digital ground return paths via a single trace introduces 50-100 mV drops during PWM switching events that can corrupt current-sense sampling by 2-4 ADC LSBs.
The 44-QFN (ML) exposed thermal pad (EP, pin 44) MUST be soldered to a PCB ground plane to achieve the datasheet theta_JA of approximately 28 C/W. Without proper EP soldering, theta_JA rises above 70 C/W and the device can exceed its 150 C junction temperature under continuous 20 MIPS operation. A minimum 6 mm x 6 mm thermal pad footprint with at least 9 thermal vias to the inner ground plane is recommended for high-PWM-duty applications.
Keep analog input traces (AN0-AN3) routed on the opposite PCB layer from any PWM switching traces with a continuous ground plane between them. PWM traces carry dV/dt above 1 V/ns, and capacitive coupling can inject 50-100 mV of switching noise into the analog inputs. A 4-layer stackup with dedicated analog ground and power planes is recommended for motor-drive designs; 2-layer stackups require careful ground partitioning and guarding.
Do not leave MCLR floating; tie MCLR (pin 7) to VDD through a 10 kohm resistor with a 0.1 uF decoupling capacitor for proper reset behavior. The auxiliary Flash used for EEPROM emulation has a minimum erase/write cycle endurance of 100k cycles; implement wear-leveling in firmware if the application updates parameters more frequently than once per minute. Watchdog timer must be enabled in safety-critical applications such as motor drives - the device watchdog can be serviced via the dedicated windowed mode to detect firmware lockups within 4 ms.
Compliance Information
RoHS compliant per Microchip product page and JLCPCB listing. AEC-Q100 is not_applicable for this industrial-grade DSC - Microchip does not list this specific variant as automotive-qualified. Halogen-free status not specified in provided data.
