DSPIC33CK32MP105-I/PT - 100MHz 16-bit DSC, 32KB Flash | Microchip
Référence : DSPIC33CK32MP105-I/PT ✓ Actif| Qté | Prix unitaire | Total |
|---|---|---|
| 1 | $0 | $0,00 |
| 10 | $0 | $0,00 |
| 100 | $0 | $0,00 |
| 500 | $0 | $0,00 |
| 1 000 | $0 | $0,00 |
DSPIC33CK32MP105-I/PT Présentation
A digital signal controller combines the compute power of a DSP with the peripheral integration and deterministic interrupt structure of a microcontroller. In the power-management hierarchy, the DSC sits between a general-purpose MCU and a dedicated DSP: it executes single-cycle MAC and DSP-class instructions while integrating motor-control and power-conversion peripherals on one die, making it a single-chip control solution for switched-mode power electronics.
Key differentiating features of this part include an integrated 12-bit high-speed Analog-to-Digital Converter (ADC) for simultaneous multi-channel sampling, on-chip operational amplifiers (Op Amps) that eliminate external signal-conditioning ICs in current-sense paths, analog comparators, and a high-resolution PWM module purpose-built for power conversion topologies.
Architecturally, the dsPIC33CK core is a single-core 16-bit pipeline design with DSP-enhanced instruction support, enabling deterministic loop timing that is critical for current-loop control in digital power supplies. The combination of fast ADC triggering, comparator-based fast shutdown, and PWM fault inputs creates a hardware-protected control loop with microsecond-scale response.
Typical applications include digital switch-mode power supplies (AC-DC, DC-DC), brushless DC and PMSM motor control for industrial drives, power factor correction stages, and advanced sensing and control systems in industrial automation.
For design, budget the 32KB Flash carefully when adding a bootloader plus complex control firmware; the pin-compatible higher-memory variants of the same 48-TQFP footprint provide an upgrade path without PCB redesign.
This page synthesizes distributor pricing, same-footprint drop-in alternatives, and practical design notes beyond what the manufacturer datasheet provides, as of 2026-09-23.
Alternatives de remplacement direct pour DSPIC33CK32MP105-I/PT — même boîtier, compatible broche à broche. Les références à boîtier différent nécessitant une retouche du PCB sont exclues.
Variantes de cette série
Modèles de la même série directement compatibles avec DSPIC33CK32MP105-I/PT (même facteur de forme et même empreinte) — différant par Core, PWM, Package, ADC Resolution, Comparators.
Outil de comparaison rapide — sélectionnez des références alternatives pour une comparaison côte à côte :
DSPIC33CK64MP105-I/PT
✅ Remplacement direct ⚠️ Spécifications non vérifiées✓ En stock
$2.35 / unité
Voir la fiche technique →DSPIC33CK128MP105-I/PT
✅ Remplacement direct ⚠️ Spécifications non vérifiées📋 Alternative de référence (hors catalogue)
DSPIC33CK32MC105-E/PT
✅ Remplacement direct✓ En stock
$1.55 / unité
Voir la fiche technique →DSPIC33CK32MP105-I/PT Valeurs maximales et caractéristiques électriques
| Core | 16-bit dsPIC DSC |
| CPU Speed | 100 MHz (100 MIPS) |
| Core Architecture | Single-core, DSP-enhanced |
| Program Memory (Flash) | 32 KB (32K x 8) |
| RAM | 8 KB |
| ADC Resolution | 12-bit |
| Op Amps (On-chip) | Yes |
| Comparators | Yes |
| PWM | High-speed PWM (motor control / digital power) |
| Boîtier | 48-TQFP (7x7 mm) |
| Type de montage | Surface Mount |
| Température de fonctionnement | -40C to +85C (I grade) |
| Product Family | dsPIC33CK |
| Functional Safety Support | Yes (FuSa variant designation per DigiKey) |
| Typical Applications | Digital power, motor control, advanced sensing and control |
Guide de configuration des broches du DSPIC33CK32MP105-I/PT 48-tqfp (7x7 mm)
Configuration des broches du DSPIC33CK32MP105-I/PT (boîtier 48-tqfp (7x7 mm)). Ce circuit intégré numérique comprend des GPIO, des interfaces de communication (UART, SPI, I2C) et des broches d'alimentation. Consultez la fiche technique du fabricant pour les fonctions alternatives des broches et les options de configuration. Indispensable pour la conception de systèmes embarqués et la conception de circuits imprimés.
Aucune donnée de brochage détaillée disponible pour DSPIC33CK32MP105-I/PT.
Consultez la fiche technique pour la configuration complète des broches.
Applications typiques
DSPIC33CK32MP105-I/PT convient pour 6 applications: Digital Switch-Mode Power Supplies, BLDC / PMSM Motor Control, Power Factor Correction (PFC) Stages, Industrial Automation and Sensing, Embedded Power Conversion Modules, Functional Safety Oriented Designs.
Digital Switch-Mode Power Supplies
The DSPIC33CK32MP105-I/PT fits digital AC-DC and DC-DC converter control because its 100 MHz (100 MIPS) core executes voltage- and current-loop compensation deterministically within single switching periods at hundreds of kHz. The integrated 12-bit ADC samples output voltage and inductor current with ADC-trigger synchronization to the PWM period, while analog comparators provide hardware-level cycle-by-cycle overcurrent protection independent of software latency. Placed as the controller of a PFC, LLC, or buck stage, the high-resolution PWM drives the power switches directly and the on-chip op amps condition shunt-current signals without external amplifier ICs, reducing BOM count. The trade-off versus an analog controller is firmware development effort and Flash budget: 32KB must hold the control law, housekeeping, and protection code, so plan for the pin-compatible 64KB/128KB variants if features grow.
Recommandé
BLDC / PMSM Motor Control
For brushless DC and permanent-magnet synchronous motor drives, the MP105's motor-control-focused peripheral set is the direct fit: the high-speed PWM generates three-phase complementary drive with programmable dead time, the on-chip op amps amplify low-value shunt resistor signals for phase-current sensing, and comparators implement fast overcurrent trip without CPU intervention. The 100 MIPS DSP core with single-cycle MAC instructions executes field-oriented control (FOC) loops at PWM frequency with computation margin to spare, which the dsPIC33CK family was specifically architected for according to Microchip's product overview. Typical use is in industrial servo drives, e-bike controllers, pumps, and appliance inverters. The key performance consideration is current-sense bandwidth and ADC synchronization: trigger the 12-bit ADC at PWM center to sample clean midpoint currents and avoid switching-noise corruption in the FOC input.
Recommandé
Power Factor Correction (PFC) Stages
In boost or totem-pole PFC front ends, the DSPIC33CK32MP105-I/PT provides the fast inner current loop and slower outer voltage loop on one chip. The 100 MHz core timing and the 12-bit ADC's fast sampling support current-loop execution at switching frequencies common in PFC designs, while the PWM module's high resolution minimizes quantization-induced limit cycling in the duty command. Input-voltage feedforward uses additional ADC channels, and comparator-based protection guards against inrush and switch overcurrent events at hardware speed. Using the on-chip op amps for current shunt amplification removes an external amplifier stage and its offset/error contribution from the control path. Budget consideration: leave Flash headroom in the 32KB device for power-metering or communication features, or spec the pin-compatible DSPIC33CK64MP105-I/PT from the start to derisk firmware growth during product development.
Recommandé
Industrial Automation and Sensing
The DSPIC33CK32MP105-I/PT serves as an intelligent sensor node or actuation controller in factory automation, where its -40C to +85C industrial temperature grade and integrated analog reduce external component count. The 12-bit ADC digitizes transducer signals, the on-chip op amps provide programmable-gain signal conditioning, and the DSP instruction set runs filtering (IIR/FIR) and FFT-class analysis directly on the controller, eliminating a separate signal-processing device. Deterministic interrupt behavior supports precise timing for encoders, flow meters, and switching actuators. Compared with a general-purpose MCU, the DSC completes control-plus-analysis in one chip with better cycle determinism; compared with a discrete DSP, it keeps the rich peripheral integration engineers expect from a Microchip controller. Designers should verify communication interface allocation (UART/SPI/I2C pin availability on the 48-pin package) early, since the compact 48-TQFP shares pins across peripheral functions.
Recommandé
Embedded Power Conversion Modules
Compact embedded converters such as onboard DC-DC bricks, USB-PD source/sink supplies, and telecom power modules benefit from the DSPIC33CK32MP105-I/PT's single-chip integration. The 48-TQFP (7x7 mm) keeps controller area minimal on dense power boards, the 12-bit ADC and PWM pair implement peak-current-mode or average-current-mode control digitally, and the 100 MHz headroom allows protocol handling (e.g., digital telemetry or PMBus-style messaging) alongside the control loop. The on-chip comparators enable hiccup-mode short-circuit protection in hardware, which is safer under fault conditions than software-only protection. Firmware developers should size the 32KB Flash for control plus communication stacks, and use the enable/pin-mux flexibility to reserve one UART or I2C for diagnostics. Because the dsPIC33CK family is pin-compatible across the MP105 memory variants, an initial 32KB build can migrate upward without PCB revision if feature creep demands it.
Recommandé
Functional Safety Oriented Designs
DigiKey classifies the DSPIC33CK32MP105 as part of Microchip's Functional Safety (FuSa) supported dsPIC33CK offering, making it suitable for safety-relevant industrial control where documented development collateral and safety packages are required. The device's architecture supports safety techniques needed in such designs: independent analog comparators provide a hardware protection path separate from firmware, the ADC can oversample for plausibility checking, and the deterministic single core simplifies worst-case execution time analysis for safety argumentation. Typical uses include motor drives with safe-torque-off adjacent logic, power supplies with redundant monitoring, and industrial sensing with self-diagnostic routines. Implementation guidance: implement the safety functions (comparator trips, windowed watchdog, clock monitoring) in hardware first, keep the software fault-reaction time quantified, and consult Microchip's functional safety package for the family to obtain the documentation needed for your certification effort.
Recommandé
Récapitulatif des produits recommandés
Données de référence d'ingénierie pour DSPIC33CK32MP105-I/PT — comparaison, recommandations de conception et informations de conformité.
Guide de sélection
Comparaison avec les alternatives
| Paramètre | Ce produit | DSPIC33CK64MP105-I/PT | DSPIC33CK128MP105-I/PT | DSPIC33CK32MC105-E/PT |
|---|---|---|---|---|
| Package | 48-TQFP (7x7) | 48-TQFP (7x7) - same | 48-TQFP (7x7) - same | 48-TQFP (7x7) - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Core / Speed | 16-bit dsPIC33CK, 100 MHz (100 MIPS) | 16-bit dsPIC33CK, 100 MHz (100 MIPS) | 16-bit dsPIC33CK, 100 MHz (100 MIPS) | 16-bit dsPIC33CK, 100 MHz (100 MIPS) |
| Flash Program Memory | 32 KB | 64 KB | 128 KB | 32 KB |
| On-chip Op Amps | Yes | Yes | Yes | No (MC variant) |
| ADC | 12-bit high-speed | 12-bit high-speed | 12-bit high-speed | 12-bit high-speed |
| Operating Temperature | -40C to +85C (I grade) | -40C to +85C (I grade) | -40C to +85C (I grade) | -40C to +125C (E grade) |
Principaux différenciateurs
- Integrated on-chip op amps eliminate external current-sense amplifiers (vs DSPIC33CK32MC105-E/PT)
- Lowest-memory member of a pin-compatible upgrade family (vs DSPIC33CK64MP105-I/PT)
- Industrial temperature grade at lowest family cost point (vs DSPIC33CK32MC105-E/PT)
Notes de conception
The 48-TQFP (7x7 mm) uses 0.5 mm lead pitch. Design the land pattern per the Microchip TQFP-48 footprint dimensions and route decoupling capacitors (100 nF ceramic per supply pin pair plus bulk capacitance) as close to the VDD/VSS pairs as possible. Since this is a mixed-signal DSC with a fast 12-bit ADC and on-chip op amps, provide a solid ground plane under the analog section and keep high-dV/dt PWM traces away from analog sense routing to protect ADC accuracy.
Budget the 32KB Flash before committing to the 32KB device. A typical FOC motor-control or digital-power firmware with a communication stack and bootloader can approach this limit. Because the dsPIC33CK MP105 family is pin-compatible across 32KB/64KB/128KB variants in the same 48-TQFP, many designers start with the 64KB part to avoid respins. Also confirm peripheral pin muxing (PPS assignment) early, since the 48-pin package shares pins across functions.
When sampling shunt currents for control loops, trigger the ADC synchronized to the PWM period (typically at counter midpoint for center-aligned PWM) so the sample lands away from switching edges. The on-chip op amps reduce external noise pickup versus off-chip amplifiers, but keep shunt traces Kelvin-routed and short. Use the comparator fast trip path for overcurrent protection rather than relying on software-only checks, which are too slow against hard faults.
Informations de conformité
Compliance status was not stated in the provided verified web data. Verify RoHS/REACH/lead-free status on the Microchip product page compliance download or distributor certificate before procurement.