DSPIC33FJ16MC102-E/SO - 16-bit DSC Motor Control 16KB Flash | Microchip
MPN: DSPIC33FJ16MC102-E/SO ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $6.31 | $6.31 |
| 10 | $5.68 | $56.80 |
| 100 | $5.05 | $505.00 |
| 500 | $4.48 | $2,240.00 |
| 1,000 | $4.11 | $4,110.00 |
DSPIC33FJ16MC102-E/SO Overview
A digital signal controller combines the computational throughput of a DSP with the peripheral set and ease of use of a microcontroller. In the power-management hierarchy, a DSC sits between general-purpose MCUs and dedicated DSPs: it executes control-loop algorithms such as field-oriented control (FOC) while integrating high-resolution PWM, fast ADC, and analog comparators on the same silicon, eliminating external controller chips.
Key features include Motor Control PWM (MCPWM) peripherals with complementary outputs and dead-time insertion, up to four high-speed analog comparators with direct PWM shutdown connections for fast overcurrent protection, the Charge Time Measurement Unit (CTMU) for capacitive touch and time-domain measurements, and Peripheral Pin Select (PPS) for flexible digital peripheral remapping.
The dsPIC33FJ core uses a modified Harvard 16-bit architecture with DSP engine (17-bit by 17-bit multiplier, 40-bit accumulator) executing MAC and DSP instructions in a single cycle. A phase-locked-loop PLL derives up to 40 MHz internal operation from a 3 V to 3.6 V supply. In-circuit serial programming (ICSP) via two pins enables field firmware updates without removing the device.
Typical applications include BLDC and PMSM motor drives, power-factor-correction converters, digital UPS systems, and battery chargers, where the PWM-comparator fault path provides hardware-level current-limit protection in nanoseconds.
When designing, budget the modest SRAM carefully: field-oriented control state variables and PI loop histories fit, but complex motion trajectories require external storage or a larger-memory family member.
This page synthesizes distributor pricing, same-footprint drop-in alternatives, and practical design notes not found in the manufacturer datasheet, verified as of 2026-09-27.
Drop-in alternatives for DSPIC33FJ16MC102-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 DSPIC33FJ16MC102-E/SO (same form factor and footprint) — differing in Package, Operating Temperature, Core Architecture, ADC, PWM Channels.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
DSPIC33FJ16MC102-I/SO
✅ Drop-In✓ In Stock
$5.1 / Unit
View Datasheet →DSPIC33FJ16MC101-E/SO
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
$2.71 / Unit
View Datasheet →DSPIC33FJ12MC202-I/SO
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
$3.85 / Unit
View Datasheet →DSPIC33FJ12MC201-I/SO
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
$2.65 / Unit
View Datasheet →DSPIC33FJ12MC202-E/SO
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
$3.21 / Unit
View Datasheet →DSPIC33FJ16MC102-E/SO Maximum Ratings & Electrical Characteristics
| Core Architecture | 16-bit dsPIC33F DSC, modified Harvard |
| Max Clock Speed | 40 MHz |
| Performance | 16 MIPS |
| Program Memory (Flash) | 16 KB |
| SRAM | 2 KB |
| Supply Voltage | 3 V to 3.6 V |
| Operating Temperature | -40C to +125C (E grade) |
| Package | 28-pin SOIC (SO), 0.65 in body width |
| Mounting Type | Surface Mount |
| Motor Control PWM (MCPWM) | Yes, with complementary outputs and dead-time control |
| High-Speed Comparators | Up to 4, direct PWM shutdown connection |
| CTMU (Charge Time Measurement Unit) | Yes |
| Peripheral Pin Select (PPS) | Yes |
| ROM Type | Flash |
| Life Cycle Stage | Active |
| RoHS Status | Lead-free, RoHS compliant package |
| Programming Interface | ICSP (In-Circuit Serial Programming), 2-wire |
DSPIC33FJ16MC102-E/SO 28-pin soic (so), 0.65 in body width Pin Configuration Guide
Pin configuration for DSPIC33FJ16MC102-E/SO (28-pin soic (so), 0.65 in body width 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 DSPIC33FJ16MC102-E/SO.
Refer to the datasheet for full pin configuration.
Typical Applications
DSPIC33FJ16MC102-E/SO is suitable for 6 applications: BLDC Motor Drives, PMSM Field-Oriented Control, Power Factor Correction Converters, Digital UPS and Inverters, Battery Chargers, Embedded Motor-Control Development and Education.
BLDC Motor Drives
The DSPIC33FJ16MC102-E/SO is purpose-built for brushless DC motor control: its Motor Control PWM module generates three complementary half-bridge pairs with programmable dead time, while up to four high-speed comparators wire directly into the PWM fault inputs so overcurrent events blank the outputs in hardware, without waiting on the 16 MIPS CPU. In a typical sensorless BLDC implementation, the CTMU and comparator inputs sense the floating phase back-EMF zero-crossings, and the dsPIC33F DSP engine executes the commutation state machine plus a PI current loop within the 16 KB Flash budget. The extended -40C to +125C E-grade rating suits drives mounted inside motor housings or pumps where ambient exceeds the standard industrial +85C limit.
Recommended
PMSM Field-Oriented Control
For permanent-magnet synchronous motor drives, the DSPIC33FJ16MC102-E/SO executes sensorless field-oriented control (FOC) at loop rates in the kHz range: the 17x17-bit single-cycle multiplier and 40-bit accumulator handle the Clarke/Park transforms and PI d-q current loops, while the MCPWM module outputs center-aligned space-vector PWM with dead-time compensation. The 16 KB Flash accommodates a compact FOC engine plus a UART bootloader, and the 2 KB SRAM holds the state variables, per-unit scaling tables, and PI histories. Because the comparators trip the PWM stage directly, hardware overcurrent protection operates independently of software latency, a key safety benefit when the same die also runs the estimator.
Recommended
Power Factor Correction Converters
In switch-mode power supplies, the DSPIC33FJ16MC102-E/SO implements average-current-mode or critical-conduction-mode power factor correction: the high-speed comparator compares the current-shunt signal against the reference and can interrupt or modulate the MCPWM output within nanoseconds, protecting the MOSFET during inrush and transient events. The 16 MIPS core closes the outer voltage loop and shapes the current reference from the rectified line, while the 12-bit ADC path samples input voltage and bulk-capacitor bus levels synchronously with the PWM period. The extended temperature rating supports power supplies sealed inside LED drivers and industrial chargers where local ambient reaches 105C to 125C.
Recommended
Digital UPS and Inverters
Uninterruptible power supplies and low-power inverters use the DSPIC33FJ16MC102-E/SO to generate the sinusoidal PWM waveform and manage transfer logic between mains and battery. The MCPWM module produces complementary outputs with dead time for the full-bridge inverter stage, and the ADC plus comparator chain handles bus-voltage supervision and instantaneous overcurrent shutdown in hardware. With 16 KB Flash, firmware typically integrates a sine lookup table, PI voltage regulation, battery-charge state machine, and fault logging. Peripheral Pin Select lets designers place PWM, UART, and fault inputs on optimal physical pins for the power-stage layout, simplifying routing on compact single-sided control boards common in UPS designs.
Recommended
Battery Chargers
Smart battery chargers benefit from the DSPIC33FJ16MC102-E/SO's combination of a buck-converter PWM engine and precision analog supervision. The CTMU (Charge Time Measurement Unit) supports precise time-domain measurements used for cell-impedance estimation and capacitive presence detection, while the comparators guard against overcurrent during constant-current charging. Firmware in the 16 KB Flash implements multi-stage CC/CV/trickle charging profiles, temperature derating via NTC reading, and status communication over a remappable UART or I2C through Peripheral Pin Select. The extended -40C to +125C rating suits chargers integrated into power tools and e-mobility packs where the controller sits close to heat-generating power stages.
Recommended
Embedded Motor-Control Development and Education
The DSPIC33FJ16MC102-E/SO is an excellent platform for learning digital motor control: Microchip's dsPICDEM MCLV (DM330021) and MCHV (DM330023) development boards accept the dsPIC33FJ16MC102 Plug-In Module (MA330026), providing a complete, low-voltage or high-voltage motor rig out of the box. The Peripheral Pin Select feature lets students remap PWM outputs, encoder interfaces (QEA/QEB pins), and fault inputs to any RP pin, teaching pin-multiplexing trade-offs alongside control theory. With two-pin ICSP programming, a hobbyist programmer suffices for flashing. MPLAB X with the XC16 compiler and free device-family simulator support experimentation without hardware risk before bench deployment.
Recommended
Recommended Products Summary
Engineering reference data for DSPIC33FJ16MC102-E/SO — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | DSPIC33FJ16MC102-I/SO | DSPIC33FJ16MC101-E/SO | DSPIC33FJ12MC202-I/SO | DSPIC33FJ12MC201-I/SO |
|---|---|---|---|---|---|
| Package | SOIC-28 (SO) | SOIC-28 (SO) - same | SOIC-28 (SO) - same | SOIC-28 (SO) - same | SOIC-28 (SO) - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Flash Program Memory | 16 KB | 16 KB | 8 KB | 12 KB | 6 KB |
| Operating Temperature | -40C to +125C | -40C to +85C | -40C to +125C | -40C to +85C | -40C to +85C |
| Max Performance | 40 MHz / 16 MIPS | 40 MHz / 16 MIPS | 40 MHz / 16 MIPS | 40 MHz / 16 MIPS | 40 MHz / 16 MIPS |
| Motor Control PWM (MCPWM) | Yes | Yes | Yes | Yes | Yes |
| High-Speed Comparators | Up to 4 | Up to 4 | Up to 4 | Up to 2 | Up to 2 |
Key Differentiators
- Extended temperature rating in the standard footprint (vs DSPIC33FJ16MC102-I/SO)
- Double the program memory of the 12 KB family member (vs DSPIC33FJ12MC202-I/SO)
- Four high-speed comparators with direct PWM shutdown (vs DSPIC33FJ12MC201-I/SO)
Design Notes
Estimated: at 3.3 V nominal operation with the core and I/O active plus peripherals, budget roughly 30-60 mA typical active current (verify exact figure in the datasheet electrical characteristics table); a local 10 uF bulk capacitor plus 0.1 uF ceramic per VDD/VSS pin pair is the standard decoupling. Do not power the part above 3.6 V - the dsPIC33FJ family has no 5 V tolerant relief on absolute maximum, so 5 V buses require an LDO such as an MCP1700 or buck regulator ahead of the VDD pins.
The E-grade (-40C to +125C) part is frequently cross-ordered with the cheaper -I grade (-40C to +85C); both share the same SOIC-28 footprint and firmware, but an I-grade inside a motor housing or sealed enclosure will exceed its rating and can suffer silent parametric drift. Also confirm Flash budget early: 16 KB accommodates compact sensorless FOC, but adding a bootloader plus CAN or Modbus stack can overflow - move up within the same footprint family or migrate to the dsPIC33FJ128MC series if your compiler map shows over 85 percent usage.
Use Peripheral Pin Select (PPS) to route the MCPWM outputs and fault inputs to the RP pins physically closest to the gate-driver inputs, minimizing PWM loop area and ringing. Keep the comparator current-sense inputs as differential, short traces from the shunt resistor with a small RC filter, since the comparator-to-PWM fault path is only as good as the noise on its input. Place the MCLR pull-up (10 k-ohm) and ICSP connector within easy reach of a board edge for in-circuit programming access.
Estimated: for a 28-pin SOIC in still air, junction-to-ambient resistance is typically on the order of 70-100 C/W (verify theta_JA in the datasheet package section); at an assumed 40 mA from 3.3 V (about 0.13 W), junction rise is only roughly 10-13 C, so thermal design is rarely limiting for the controller itself. The critical thermal path is usually the adjacent power stage - keep the DSC away from MOSFET and gate-driver hot spots on the PCB to preserve timing margins at +125C ambient.
Compliance Information
Distributor listings describe the SO package as lead-free plastic per digchip package description; full REACH and halogen status not stated in provided data.
