DSPIC33FJ32MC102-E/ML - 16-bit DSC, 16 MIPS, 32KB Flash | Microchip
MPN: DSPIC33FJ32MC102-E/ML ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $2.67 | $2.67 |
| 10 | $2.44 | $24.40 |
| 100 | $2.18 | $218.00 |
| 500 | $1.97 | $985.00 |
| 1,000 | $1.78 | $1,780.00 |
DSPIC33FJ32MC102-E/ML Overview
A Digital Signal Controller combines the peripheral set and processing throughput of a microcontroller with the math capability of a DSP core. In the power-management hierarchy, the dsPIC33F sits between general-purpose MCUs and dedicated DSPs, offering single-cycle MAC instructions, a barrel shifter, dual operand fetch, and hardware division, making it a compact single-chip solution for closed-loop control of power conversion and motion systems.
Key features include the Motor Control PWM (MCPWM) module with complementary outputs, dead-time insertion and fault protection, three analog comparators for cycle-by-cycle current limiting, the CTMU (Charge Time Measurement Unit) for capacitive touch and precise timing, Peripheral Pin Select (PPS) for flexible digital pin remapping, and an RTCC real-time clock/calendar.
The dsPIC33F core executes Modified Harvard architecture instructions with DSP engine support: the multiply-accumulate unit can fetch two operands while multiplying and accumulating in one cycle, enabling efficient field-oriented control and digital filtering algorithms. Program memory is self-programmable Flash supporting in-circuit field updates, and the device operates from a 3.0V to 3.6V supply.
Typical applications include brushless DC (BLDC) and permanent-magnet synchronous motor (PMSM) drives, switched-mode power supplies, digital lighting ballasts, and battery chargers, where the MCPWM, comparators and ADC form a complete current-loop control path on one chip.
Design-wise, take advantage of PPS to route PWM and communication peripherals to optimal board positions, but verify PPS assignments before locking firmware, since unmapped peripherals fail silently.
This page synthesizes distributor pricing, same-family drop-in alternatives, and practical motor-control design notes not consolidated in the manufacturer datasheet.
Drop-in alternatives for DSPIC33FJ32MC102-E/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 DSPIC33FJ32MC102-E/ML (same form factor and footprint) — differing in Core Architecture, Package, ADC, DSP Engine, MSL Level.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
DSPIC33FJ32MC202-E/ML
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
DSPIC33FJ12MC202-E/ML
✅ Drop-In✓ In Stock
$3.78 / Unit
View Datasheet →DSPIC33FJ12MC202T-E/ML
✅ Drop-In✓ In Stock
$2.85 / Unit
View Datasheet →DSPIC33FJ32MC102-E/ML Maximum Ratings & Electrical Characteristics
| Core Architecture | 16-bit dsPIC33F DSC |
| Maximum MIPS | 16 MIPS |
| Program Memory (Flash) | 32 KB (11K x 24) |
| RAM | 2 KB |
| Supply Voltage | 3.0 V to 3.6 V (3.3 V nominal) |
| Operating Temperature | -40C to +125C (E grade) |
| Package | 28-VQFN with Exposed Pad (ML) |
| Mounting Type | Surface Mount |
| Motor Control PWM (MCPWM) | Yes |
| Comparators | 3 |
| CTMU | Yes (Charge Time Measurement Unit) |
| RTCC | Yes (Real-Time Clock and Calendar) |
| Peripheral Pin Select (PPS) | Yes |
| Qualification | AEC-Q100, Automotive |
| RoHS Status | Compliant |
DSPIC33FJ32MC102-E/ML 28-vqfn with exposed pad (ml) Pin Configuration Guide
Pin configuration for DSPIC33FJ32MC102-E/ML (28-vqfn with exposed pad (ml) 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 DSPIC33FJ32MC102-E/ML.
Refer to the datasheet for full pin configuration.
Typical Applications
DSPIC33FJ32MC102-E/ML is suitable for 6 applications: BLDC Motor Control, Switched-Mode Power Supplies, Digital Lighting Ballasts, Battery Chargers, Automotive Embedded Control Modules, Industrial Sensing and PSC Motor Drives.
BLDC Motor Control
The DSPIC33FJ32MC102-E/ML is purpose-built for brushless DC motor drives. Its MCPWM module generates complementary PWM pairs with programmable dead time, while the three on-chip analog comparators provide cycle-by-cycle overcurrent protection against the current-sense shunt, eliminating external comparator ICs. The 16 MIPS DSP core with single-cycle MAC executes commutation and speed-loop firmware with headroom for field-oriented control on sensorless or hall-sensored motors. In a typical three-phase inverter, the DSC sits between the gate-driver inputs and the current/voltage feedback dividers, using the high-speed ADC and comparators as a hardware fault path that reacts faster than software. The 28-VQFN exposed-pad package fits compact driver boards, and the -40C to +125C E grade supports automotive fan, pump, and actuator applications.
Recommended
Switched-Mode Power Supplies
In digital power supplies, the DSPIC33FJ32MC102-E/ML closes the voltage-mode or current-mode control loop entirely in firmware. The MCPWM module outputs fixed-frequency PWM to the power stage, the on-chip comparators implement peak-current limiting with hardware response, and the DSP engine's single-cycle MAC runs the compensator (PI or 3p3z) efficiently at switching frequencies in the tens of kilohertz range. Peripheral Pin Select allows routing PWM and feedback signals to optimal physical pins, simplifying layout around hot loops. Because the part is AEC-Q100 qualified and rated to +125C ambient, it suits automotive on-board chargers, LED drivers, and telecom brick supplies. The 3.0V-3.6V supply requirement means a small LDO or buck derives the controller rail from the primary auxiliary winding.
Recommended
Digital Lighting Ballasts
Electronic HID and fluorescent ballasts benefit from the DSPIC33FJ32MC102-E/ML's combination of MCPWM, comparators, and DSP throughput. The PWM module drives the half-bridge or full-bridge resonant stage at the lamp's operating frequency, while firmware sweeps the ignition frequency ramp and regulates lamp power through the ADC-sampled current signal. The three comparators protect against open-lamp and overcurrent faults with hardware speed. The CTMU provides precise timing for frequency control and can also sense lamp presence via charge-time measurement. The 16 MIPS core sustains the control loop plus communication (UART for dimming protocols) simultaneously. Its small 28-VQFN footprint and low cost make it an ultra-low-cost fit for the ballast controller BOM, and AEC-Q100 qualification covers automotive lighting variants.
Recommended
Battery Chargers
Smart battery chargers use the DSPIC33FJ32MC102-E/ML to implement multi-stage charging algorithms (constant current, constant voltage, termination) in firmware. The MCPWM output drives the buck or flyback power stage, the ADC samples battery voltage and current, and the comparators provide fast overcurrent cutoff independent of software latency. The RTCC real-time clock supports timed charge termination and safe-mode behavior after power interruptions, and the CTMU can monitor battery temperature through NTC charge-time measurement, avoiding a dedicated timer resource. The 32KB Flash holds charging state machines plus communication protocols such as SMBus-style serial links mapped via Peripheral Pin Select. The -40C to +125C E grade and AEC-Q100 qualification suit automotive and industrial charger designs.
Recommended
Automotive Embedded Control Modules
Because the DSPIC33FJ32MC102-E/ML is AEC-Q100 qualified with an E-grade -40C to +125C temperature rating, it fits automotive auxiliary control modules such as pump controllers, HVAC damper actuators, throttle-flap drives, and sensor conditioning units. The 16-bit DSP core handles control loops and filtering; the MCPWM drives the actuator H-bridge with dead-time control; and the CTMU supports capacitive-touch user interfaces and precise time-based measurements. The RTCC provides time-stamping for diagnostics, and the 32KB self-programmable Flash enables field firmware updates through a bootloader. Peripheral Pin Select lets one PCB design serve multiple module variants by remapping UART/LIN and PWM pins in firmware, reducing part-number proliferation across a vehicle platform's control boards.
Recommended
Industrial Sensing and PSC Motor Drives
For industrial equipment, the DSPIC33FJ32MC102-E/ML controls permanent-split-capacitor (PSC) and universal motors in fans, blowers, and pumps, replacing triac phase control with efficient PWM drives. The DSC samples current and back-EMF through its ADC, regulates speed with firmware PID, and uses the comparators for hardware-level stall and overcurrent detection. The DSP engine accelerates digital filtering of noisy sensor signals, while the 32KB Flash stores compensation tables and fault logs. The RTCC enables duty scheduling (for example, HVAC fan duty cycles) without an external RTC. Its VQFN exposed-pad package dissipates controller heat into the PCB in sealed enclosures, and AEC-Q100 plus the wide -40C to +125C range satisfy the harsh ambient conditions typical of industrial motor housings.
Recommended
Recommended Products Summary
Engineering reference data for DSPIC33FJ32MC102-E/ML — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | DSPIC33FJ32MC202-E/ML | DSPIC33FJ12MC202-E/ML | DSPIC33FJ12MC202T-E/ML |
|---|---|---|---|---|
| Package | 28-VQFN (ML), exposed pad | 28-VQFN (ML) - same | 28-VQFN (ML) - same | 28-VQFN (ML) - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Program Flash | 32 KB (11K x 24) | 32 KB (11K x 24) | 12 KB | 12 KB |
| RAM | 2 KB | 2 KB | 1 KB | 1 KB |
| Performance | 16 MIPS | 16 MIPS | 16 MIPS | 16 MIPS |
| PWM Architecture | MCPWM module | Dual PWM generators, independent timebases | MCPWM module | MCPWM module |
| Operating Temperature | -40C to +125C (E grade) | -40C to +125C | -40C to +125C | -40C to +125C |
| Automotive Qualification | AEC-Q100 | AEC-Q100 | AEC-Q100 | AEC-Q100 |
Key Differentiators
- CTMU peripheral included (vs DSPIC33FJ32MC202-E/ML)
- Twice the program memory of the low-cost sibling (vs DSPIC33FJ12MC202-E/ML)
- Automotive-grade E temperature range in a compact package (vs DSPIC33FJ32MC102-E/SO)
Design Notes
Solder the exposed pad of the 28-VQFN (ML) package to a grounded copper pour with an array of thermal vias. The pad is the primary thermal path for the die; leaving it unconnected raises junction temperature significantly in sealed motor-control enclosures at +85C ambient and above. Follow the Microchip QFN land-pattern application notes for via size (approximately 0.3 mm) and count (5x5 array typical) to achieve the lowest effective theta-JA.
The device operates from 3.0V to 3.6V only - never connect it directly to 5V or automotive battery rails. Derive the 3.3V rail with an LDO or small buck, and place a 0.1uF ceramic capacitor at each VDD pin plus a 2.2uF-10uF bulk capacitor. In motor-drive boards, keep the 3.3V controller rail physically and galvanically separate from the noisy power-stage ground where possible, using a single-point star ground to prevent PWM switching currents from corrupting ADC readings.
Peripheral Pin Select (PPS) is powerful but error-prone: a peripheral that is not explicitly mapped to a pin via the RPx registers will simply not appear on the package, and the firmware will still compile and run. Always call the PPS configuration (and lock, if used) before enabling peripherals, and add an assertion or self-test that toggles each mapped pin at startup. Also verify the oscillator configuration fuse: a wrong clock setting leaves the device running from the internal FRC at reduced MIPS.
Route MCPWM outputs to the gate drivers with short, direct traces and a ground return underneath each pair. Because dead-time and fault inputs are handled in hardware, keep the current-shunt-to-comparator path as short as practical and use Kelvin connections at the sense resistor so the comparators see the true shunt voltage without power-ground bounce. Estimated: keeping the comparator input filter time constant below 1 us preserves cycle-by-cycle protection at typical 20 kHz PWM frequencies.
Compliance Information
Hotenda product data classifies the part as Automotive, AEC-Q100, dsPIC 33F Series. RoHS and lead-free status inferred from standard Microchip E-suffix commercial product; REACH/halogen/conflict-minerals status not stated in provided data.
