DSPIC33CK128MP202-I/2N - 100MHz 128KB DSC, CAN FD | Microchip
MPN: DSPIC33CK128MP202-I/2N β Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $4.35 | $4.35 |
| 10 | $3.95 | $39.50 |
| 100 | $3.6 | $360.00 |
| 500 | $3.3 | $1,650.00 |
| 1,000 | $3.05 | $3,050.00 |
DSPIC33CK128MP202-I/2N Overview
A digital signal controller combines the control peripherals of a microcontroller with the math capability of a digital signal processor. In the power-management hierarchy, the dsPIC33CK sits within Microchip's 16-bit dsPIC33C DSC family, a class of devices purpose-built for closed-loop control systems that general-purpose MCUs often handle poorly because loop bandwidth and deterministic interrupt latency are critical.
Key features include integrated op amps and 12-bit ADCs, high-resolution PWM with 250 ps edge placement for precision switching stages, CAN Flexible Data (CAN FD) support for automotive and industrial networks, and dual-panel flash enabling field firmware updates without downtime. Functional Safety (FuSa) documentation support makes it suitable for safety-oriented designs.
Architecturally, the modified Harvard core delivers deterministic 100 MIPS single-cycle execution with DSP instructions (MAC, DSP multiply-accumulate) and hardware division. The ADC and PWM subsystems are tightly coupled, allowing sub-microsecond control-loop periods essential for digital power converters and motor commutation. Memory Built-In Self-Test (MBIST) and ECC flash strengthen reliability in always-on industrial equipment.
Typical applications include digital switch-mode power supplies and PFC stages, BLDC/PMSM motor control with field-oriented control algorithms, automotive and industrial CAN FD nodes, and advanced sensing and control systems requiring fast analog acquisition.
When designing, budget the 3.0 V to 3.6 V supply carefully and reserve the 250 ps PWM resolution for switching frequencies where dead-time control dominates losses; at very low PWM frequencies the resolution advantage diminishes. Decouple VDD pins per the manufacturer datasheet layout guidance.
This page synthesizes distributor availability data, same-family drop-in alternatives, and practical design notes not found in the manufacturer datasheet.
Drop-in alternatives for DSPIC33CK128MP202-I/2N β 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 DSPIC33CK128MP202-I/2N (same form factor and footprint) β differing in Architecture, Core, Data SRAM, Operating Temperature, PWM Resolution.
Quick Comparison Tool β Select alternative parts for side-by-side comparison:
DSPIC33CK256MP202-I/2N
β Drop-In β οΈ εζ°εΎ ιͺθ―π Reference alternative (not in catalog)
DSPIC33CK64MP202-I/2N
β Drop-In β οΈ εζ°εΎ ιͺθ―π Reference alternative (not in catalog)
DSPIC33CK32MP202-I/2N
β Drop-In β οΈ εζ°εΎ ιͺθ―β In Stock
$2.31 / Unit
View Datasheet βDSPIC33CK128MP202-I/2N Maximum Ratings & Electrical Characteristics
| Core | dsPIC33C 16-bit DSC, single core |
| Maximum Clock Speed | 100 MHz (100 MIPS) |
| Program Flash | 128 KB (128K x 8), dual-partition with ECC |
| Data SRAM | 16 KB |
| Supply Voltage | 3.0 V to 3.6 V |
| Operating Temperature | -40C to +85C |
| PWM Resolution | 250 ps |
| ADC Resolution | 12-bit |
| Integrated Op Amps | Yes |
| CAN Interface | CAN Flexible Data (CAN FD) |
| Package | 28-UQFN (6x6 mm) |
| Mounting Type | Surface Mount |
| Architecture | Modified Harvard |
| Flash Features | ECC, Live Update (dual-partition) |
| Memory Self-Test | MBIST (Memory Built-In Self-Test) |
| Safety Support | Functional Safety (FuSa) package |
| RoHS Status | Compliant |
DSPIC33CK128MP202-I/2N 28-uqfn (6x6 mm) Pin Configuration Guide
Pin configuration for DSPIC33CK128MP202-I/2N (28-uqfn (6x6 mm) 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 DSPIC33CK128MP202-I/2N.
Refer to the datasheet for full pin configuration.
Typical Applications
DSPIC33CK128MP202-I/2N is suitable for 6 applications: Digital Switch-Mode Power Supplies, BLDC/PMSM Motor Control, Automotive and Industrial CAN FD Nodes, Wireless Charging and Resonant Converters, Advanced Sensing and Control Systems, LED Lighting and Electronic Ballasts.
Digital Switch-Mode Power Supplies
The DSPIC33CK128MP202-I/2N fits digital SMPS and PFC designs because its 250 ps PWM resolution enables precise dead-time and duty-cycle control in high-frequency converters, where edge jitter directly translates into switching loss and thermal stress. The 12-bit ADC with integrated op amps acquires current- and voltage-feedback signals quickly enough to close current-mode loops in the sub-microsecond regime. Firmware running on the 100 MHz (100 MIPS) deterministic core executes the compensator every switching cycle. Dual-partition flash with ECC and Live Update allows control-firmware field updates without dropping converter output, an advantage in server and telecom power where uptime matters.
Recommended
BLDC/PMSM Motor Control
Field-oriented control (FOC) of brushless DC and permanent-magnet synchronous motors demands fast, deterministic computation and fine PWM granularity, both of which the DSPIC33CK128MP202-I/2N provides at 100 MHz with 250 ps PWM resolution. The 12-bit ADCs sample phase currents, and the integrated op amps can amplify shunt signals on-chip, removing external amplifier stages. Single-cycle DSP MAC instructions accelerate the Clarke/Park transforms and PI compensators. The 28-UQFN (6x6 mm) package suits compact motor-driver boards for industrial drives, e-bikes, and appliance inverters, while the -40C to +85C range covers harsh environments.
Recommended
Automotive and Industrial CAN FD Nodes
With an integrated CAN Flexible Data (CAN FD) controller, the DSPIC33CK128MP202-I/2N serves as a compact networked control node in automotive body systems, industrial machinery, and battery-management communications. CAN FD data rates beyond classical CAN reduce bus occupancy for high-throughput sensor frames. The 128 KB dual-partition flash with ECC and Live Update supports field firmware updates across a vehicle or factory floor, and Microchip's Functional Safety (FuSa) documentation package for dsPIC33CK assists in safety-relevant development. The 3.0 V to 3.6 V supply and -40C to +85C rating align with industrial and light-automotive environmental requirements.
Recommended
Wireless Charging and Resonant Converters
Resonant converters and wireless power transmitters require frequency, phase, and duty resolution well below conventional PWM peripherals offer. The DSPIC33CK128MP202-I/2N's 250 ps PWM resolution at the 100 MHz core clock gives effectively continuous phase control, essential for zero-voltage-switching regulation and foreign-object detection loops in Qi-class wireless chargers. Fast 12-bit ADC sampling tracks coil current and tuning detuning in real time, while the 100 MIPS core executes the tracking algorithm every cycle. The small 28-UQFN footprint fits receiver and transmitter coil-driver PCBs where board area around the coil is constrained.
Recommended
Advanced Sensing and Control Systems
Industrial sensing nodes benefit from the DSPIC33CK128MP202-I/2N's combination of on-chip signal conditioning (integrated op amps), precision 12-bit acquisition, and DSP math capability for filtering, FFT, and sensor-fusion calculations on a single 100 MHz device. Memory Built-In Self-Test (MBIST) and ECC flash increase measurement-system reliability for continuously operating equipment. The 28-pin UQFN (6x6 mm) package integrates into dense sensor boards, while CAN FD connectivity streams processed results to supervisory controllers without a second communication chip. The 3.0 V to 3.6 V supply supports common 3.3 V analog front-end rails directly.
Recommended
LED Lighting and Electronic Ballasts
High-power and smart lighting systems use the DSPIC33CK128MP202-I/2N for digitally controlled LED drivers where dimming resolution and flicker-free operation depend on fine PWM control; the 250 ps PWM resolution supports high-resolution dimming curves and phase-dimming compatibility. Integrated op amps handle current-sense amplification for constant-current regulation, and the 12-bit ADC closes the feedback loop each switching cycle on the 100 MHz core. The compact 28-UQFN (6x6 mm) package suits driver boards embedded in luminaires, and the -40C to +85C industrial temperature range accommodates enclosed luminaire thermal environments.
Recommended
Recommended Products Summary
Engineering reference data for DSPIC33CK128MP202-I/2N β comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | DSPIC33CK256MP202-I/2N | DSPIC33CK64MP202-I/2N | DSPIC33CK32MP202-I/2N |
|---|---|---|---|---|
| Package | 28-UQFN (6x6 mm) | 28-UQFN (6x6 mm) - same | 28-UQFN (6x6 mm) - same | 28-UQFN (6x6 mm) - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Program Flash | 128 KB | 256 KB | 64 KB | 32 KB |
| Data SRAM | 16 KB | 16 KB | 16 KB | 16 KB |
| Core Speed | 100 MHz (100 MIPS) | 100 MHz (100 MIPS) | 100 MHz (100 MIPS) | 100 MHz (100 MIPS) |
| PWM Resolution | 250 ps | 250 ps | 250 ps | 250 ps |
| ADC | 12-bit + integrated op amps | 12-bit + integrated op amps | 12-bit + integrated op amps | 12-bit + integrated op amps |
| CAN FD | Yes | Yes | Yes | Yes |
| Operating Temperature | -40C to +85C | -40C to +85C | -40C to +85C | -40C to +85C |
Key Differentiators
- Double the flash for firmware headroom (vs DSPIC33CK64MP202-I/2N)
- Cost-optimized downgrade path (vs DSPIC33CK32MP202-I/2N)
- 250 ps PWM plus on-chip analog (vs DSPIC33CK256MP202-I/2N)
Design Notes
The DSPIC33CK128MP202-I/2N requires a tightly regulated 3.0 V to 3.6 V supply. Use a local 3.3 V LDO or buck output with a bulk capacitor plus 0.1 uF ceramic decoupling at every VDD/VSS pin pair, placed within 2 mm of the pins per Microchip layout guidance in the dsPIC33CK family datasheet. Digital power designs often co-locate the DSC gate-driver supply with noisy switch nodes; keep the DSC supply star-routed away from gate-driver return currents to prevent ADC reference bounce.
For digital power use, route PWM outputs to gate drivers as short as practical and keep the ADC analog inputs away from the PWM traces. The 250 ps PWM resolution is only meaningful if edge integrity is preserved; long unterminated traces cause edge ringing that erodes effective dead-time accuracy. Place current-shenseense shunt and op-amp input filtering close to the device, and use the integrated op amps with short, guarded traces for best noise performance.
Do not assume pin-compatibility outside the dsPIC33CK MP202 pin family: even same-package devices in other families (for example dsPIC33CH parts in similar packages) have different peripheral-to-pin maps and configuration words, so a swap requires schematic and firmware review. Also verify that your flash budget includes the Live Update bootloader overhead when sizing against 128 KB; the dual-partition scheme effectively halves available flash during a field update.
Compliance Information
RoHS compliant per Master Electronics listing. Temperature grade is industrial (-40C to +85C); automotive AEC-Q100 qualification must be confirmed with Microchip. Microchip offers Functional Safety (FuSa) packages for the dsPIC33CK family.
