DSPIC33CK128MP205T-I/PT - 100MHz 128KB DSC 48-TQFP | Microchip
N.º da peça: DSPIC33CK128MP205T-I/PT ✓ Ativo| Qtd. | Preço unitário | Total |
|---|---|---|
| 1 | $4.62 | $4,62 |
| 10 | $4.18 | $41,80 |
| 100 | $3.75 | $375,00 |
| 500 | $3.42 | $1.710,00 |
| 1.000 | $3.12 | $3.120,00 |
DSPIC33CK128MP205T-I/PT Visão geral
A digital signal controller combines the computational power of a digital signal processor (DSP) with the control peripherals of a microcontroller (MCU), sitting in the device hierarchy between a general-purpose MCU and a dedicated DSP. The dsPIC33CK series is Microchip's latest-generation 16-bit DSC platform, adding a high-resolution PWM, CAN Flexible Data (CAN FD), and integrated analog for closed-loop power and motor systems.
Key features include the 100 MHz (100 MIPS) DSP engine with single-cycle MAC and hardware division, 128KB ECC Flash, 16KB RAM, three integrated operational amplifiers (OpAmp), three analog comparators, and a Peripheral Trigger Generator (PTG). The high-resolution PWM supports switching frequencies well above 1 MHz with sub-nanosecond effective resolution, critical for modern LLC and buck converters.
The architecture provides a 32-bit wide data path in the DSP engine, 4 DMA channels, multiple UART/SPI/I2C serial ports, and CAN FD for automotive and industrial networking. Core voltage is generated internally from the 3.3V supply via an integrated regulator (VCAP pin). Functional Safety (FuSa) documentation support is available for IEC 61508 and ISO 26262 oriented designs.
Typical applications include digital power supplies (PFC, LLC, buck/boost), brushless DC and PMSM motor control, solar inverters, battery chargers, LED drivers, and advanced sensing systems where fast control loops and integrated analog reduce external component count.
Design consideration: place a low-ESR capacitor on the VCAP/VDDCORE pin per Microchip layout guidelines and decouple each VDD/VSS pair; the tape-and-reel suffix (T) suits automated SMT assembly.
This page synthesizes distributor pricing, same-family drop-in alternatives, and practical design notes not found in the manufacturer datasheet.
Alternativas drop-in para DSPIC33CK128MP205T-I/PT — mesmo encapsulamento, compatível pino a pino. Peças de encapsulamento diferente que exigem retrabalho na PCB são excluídas.
Variantes desta série
Modelos da mesma série compatíveis como drop-in com DSPIC33CK128MP205T-I/PT (mesmo formato e footprint) — diferindo em CAN Interface, Package, RoHS Status, Core, Functional Safety Support.
Ferramenta de comparação rápida — selecione peças alternativas para comparação lado a lado:
DSPIC33CK128MP205-E/PT
✅ Drop-In✓ Em estoque
$3.61 / unidade
Ver ficha técnica →DSPIC33CK64MP205T-I/PT
✅ Drop-In ⚠️ Especificações não verificadas📋 Alternativa de referência (fora do catálogo)
DSPIC33CK32MP205T-I/PT
✅ Drop-In ⚠️ Especificações não verificadas✓ Em estoque
$1.48 / unidade
Ver ficha técnica →DSPIC33CK128MP505T-I/PT
✅ Drop-In ⚠️ Especificações não verificadas📋 Alternativa de referência (fora do catálogo)
DSPIC33CK128MP205T-I/PT Classificações máximas e características elétricas
| Core Architecture | 16-bit dsPIC DSC (CISC/DSP) |
| Frequência máxima de clock | 100 MHz (100 MIPS) |
| Program Memory (Flash) | 128KB (128K x 8) |
| RAM | 16KB |
| Tensão de alimentação | 3.3 V |
| Encapsulamento | 48-TQFP (7x7 mm) |
| Tipo de montagem | Surface Mount |
| On-chip Operational Amplifiers | 3 |
| Analog Comparators | 3 |
| Peripheral Trigger Generator (PTG) | Yes |
| CAN Interface | CAN Flexible Data (CAN FD) |
| PWM | High-Resolution PWM |
| DMA Channels | 4 |
| Temperature Grade | -40C to +85C (I grade) |
| Packaging | Tape & Reel (T suffix) |
| Status RoHS | Compliant |
| Functional Safety Support | Yes (FuSa package available) |
Configuração de pinos do DSPIC33CK128MP205T-I/PT
| Pino 1 | MCLR — Master clear reset input |
| Pino 2 | AN0/RA0 — Analog input 0 / digital I/O |
| Pino 3 | AN1/RA1 — Analog input 1 / digital I/O |
| Pino 4 | AN2/RA2 — Analog input 2 / digital I/O |
| Pino 5 | AN3/RA3 — Analog input 3 / digital I/O |
| Pino 6 | AN4/RA4 — Analog input 4 / digital I/O |
| Pino 7 | VDD — Power supply (3.3 V) |
| Pino 8 | VSS — Ground |
| Pino 9 | OSC1/CLKI — Oscillator input / external clock |
| Pino 10 | OSC2/CLKO/RC15 — Oscillator output / digital I/O |
| Pino 11 | VCAP/VDDCORE — Internal core regulator capacitor |
| Pino 12 | AN5/RC0 — Analog input 5 / digital I/O |
| Pino 13 | AN6/RC1 — Analog input 6 / digital I/O |
| Pino 14 | AN7/RC2 — Analog input 7 / digital I/O |
| Pino 15 | C1OUT/RC3 — Comparator 1 output / digital I/O |
| Pino 16 | C2OUT/RC4 — Comparator 2 output / digital I/O |
| Pino 17 | RP35/RF3 — Remappable peripheral pin / digital I/O |
| Pino 18 | RP36/RF4 — Remappable peripheral pin / digital I/O |
| Pino 19 | RP37/RF5 — Remappable peripheral pin / digital I/O |
| Pino 20 | VSS — Ground |
| Pino 21 | VDD — Power supply (3.3 V) |
| Pino 22 | AN8/RB0 — Analog input 8 / digital I/O |
| Pino 23 | AN9/RB1 — Analog input 9 / digital I/O |
| Pino 24 | AN10/RB2 — Analog input 10 / digital I/O |
| Pino 25 | AN11/RB3 — Analog input 11 / digital I/O |
| Pino 26 | AN12/RB4 — Analog input 12 / digital I/O |
| Pino 27 | AN13/RB5 — Analog input 13 / digital I/O |
| Pino 28 | AN14/RB6 — Analog input 14 / digital I/O |
| Pino 29 | AN15/RB7 — Analog input 15 / digital I/O |
| Pino 30 | RP40/RD0 — Remappable peripheral pin / digital I/O |
| Pino 31 | RP41/RD1 — Remappable peripheral pin / digital I/O |
| Pino 32 | RP42/RD2 — Remappable peripheral pin / digital I/O |
| Pino 33 | RP43/RD3 — Remappable peripheral pin / digital I/O |
| Pino 34 | RP44/RD4 — Remappable peripheral pin / digital I/O |
| Pino 35 | RP45/RD5 — Remappable peripheral pin / digital I/O |
| Pino 36 | VSS — Ground |
| Pino 37 | VDD — Power supply (3.3 V) |
| Pino 38 | RP64/RE0 — Remappable peripheral pin / digital I/O |
| Pino 39 | RP65/RE1 — Remappable peripheral pin / digital I/O |
| Pino 40 | RP66/RE2 — Remappable peripheral pin / digital I/O |
| Pino 41 | RP67/RE3 — Remappable peripheral pin / digital I/O |
| Pino 42 | RP68/RE4 — Remappable peripheral pin / digital I/O |
| Pino 43 | RP69/RE5 — Remappable peripheral pin / digital I/O |
| Pino 44 | C3OUT/RC5 — Comparator 3 output / digital I/O |
| Pino 45 | RP54/RF0 — Remappable peripheral pin / digital I/O |
| Pino 46 | RP55/RF1 — Remappable peripheral pin / digital I/O |
| Pino 47 | RP56/RF2 — Remappable peripheral pin / digital I/O |
| Pino 48 | AVDD/AVSS — Analog power/ground reference pin |
Aplicações típicas
DSPIC33CK128MP205T-I/PT é adequado para 6 aplicaçãos: Digital Power Supplies, Brushless DC / PMSM Motor Control, Solar Inverters and MPPT, Battery Chargers and BMS, LED Lighting and Drivers, Industrial Sensing and Control Nodes.
Digital Power Supplies
The DSPIC33CK128MP205T-I/PT fits digital power applications because its 100 MHz DSP core with single-cycle MAC executes voltage- and current-loop compensation at high sampling rates, while the high-resolution PWM delivers fine duty-cycle resolution needed by LLC, phase-shifted full-bridge, and interleaved buck topologies. The 3 integrated op-amps amplify current-shunt signals on-chip, and 3 analog comparators support cycle-by-cycle current limiting without external components. In a typical offline PFC + LLC design, the controller runs the compensation loop in interrupts triggered by the PWM or PTG, with CAN FD available for supervisory communication. The trade-off versus dedicated digital-power ASICs is firmware development effort, repaid by full design flexibility and single-platform reuse across power products.
Recomendado
Brushless DC / PMSM Motor Control
For sensorless or sensored three-phase motor control, the DSPIC33CK128MP205T-I/PT provides a 100 MHz core for field-oriented control (FOC) algorithms, high-resolution PWM outputs for the six-switch inverter bridge, and integrated op-amps for low-side current sensing on up to three phases. The 3 comparators enable hardware-based overcurrent protection with sub-microsecond response, independent of firmware latency. The 16KB RAM accommodates FOC state variables and observers such as sliding-mode or flux estimators at 100 kHz loop rates. ADC sampling can be synchronized to PWM center alignment to minimize switching-noise-induced measurement error. Choosing the MP205 over smaller dsPIC33CK members is justified when three-phase sensing plus one auxiliary analog channel exceeds the pin and op-amp budget of 28-pin variants.
Recomendado
Solar Inverters and MPPT
Solar string and micro-inverter designs benefit from the DSPIC33CK128MP205T-I/PT's combination of fast control loops and CAN FD networking. The 100 MHz DSC runs maximum power point tracking (MPPT) algorithms alongside the current-shaping control loop, while the high-resolution PWM drives the boost stage and DC-AC bridge. Integrated op-amps condition panel voltage/current sense signals, and the comparators provide hardware overcurrent trip for grid-fault conditions. The 128KB Flash stores grid-code compliance firmware with room for field updates. CAN FD links multiple inverters or communicates with battery management in storage systems. Memory headroom over 64KB variants matters here because firmware typically includes safety state machines, calibration tables, and communication stacks concurrently.
Recomendado
Battery Chargers and BMS
In battery charging systems, the DSPIC33CK128MP205T-I/PT implements CC/CV charging profiles, cell balancing supervision, and fault handling in one controller. Its three op-amps sense charge current and pack voltage with on-chip amplification, and the 12-bit analog inputs monitor individual cell taps through external dividers. The high-resolution PWM controls the charging power stage (buck, boost, or LLC based), while timers and the PTG coordinate balancing duty cycles. CAN FD provides the standard vehicle and industrial BMS communication interface with robust error containment. The industrial -40C to +85C temperature grade suits under-hood and outdoor energy-storage enclosures. Firmware overhead for Li-ion and LiFePO4 profiles, gauge estimation, and logging fits comfortably in the 128KB Flash.
Recomendado
LED Lighting and Drivers
Advanced LED drivers use the DSPIC33CK128MP205T-I/PT to combine constant-current regulation, dimming, and digital communication. The high-resolution PWM generates precise dimming waveforms free of visible flicker even at low duty cycles, and the 100 MHz core closes the feedback loop fast enough to reject 100/120 Hz input ripple without large output capacitors. Integrated op-amps sense output current directly from shunt resistors, and comparators provide fast short-circuit protection for the LED string. DALI or DMX-style protocols can run over UART or SPI, while CAN FD suits networked architectural and horticultural lighting systems. The 48-pin count provides ample GPIO for multi-channel RGBW fixtures, thermal-sensor inputs, and user interfaces on a single controller.
Recomendado
Industrial Sensing and Control Nodes
The DSPIC33CK128MP205T-I/PT serves as an intelligent sensing and control node in industrial automation, where its 100 MHz DSP engine performs digital filtering (IIR/FIR), FFT-based vibration analysis, or ratiometric sensor correction locally. Three op-amps condition sensor outputs such as pressure bridges or current transformers, and the high-resolution PWM can drive actuators or switching regulators for sensor excitation. CAN FD connectivity at up to 8 Mbit/s data phase integrates the node into industrial networks, while UART/SPI/I2C connect auxiliary devices. The industrial temperature range and Functional Safety documentation support make it suitable for machinery requiring safety documentation. The 128KB Flash hosts protocol stacks, calibration routines, and diagnostics, reducing dependence on a host controller.
Recomendado
Resumo dos produtos recomendados
Dados de referência de engenharia para DSPIC33CK128MP205T-I/PT — comparação, orientação de projeto e informações de conformidade.
Guia de seleção
Comparação com alternativas
| Parâmetro | Este produto | DSPIC33CK128MP205-E/PT | DSPIC33CK64MP205T-I/PT | DSPIC33CK32MP205T-I/PT | DSPIC33CK128MP505T-I/PT |
|---|---|---|---|---|---|
| Package | 48-TQFP (7x7 mm) | 48-TQFP (7x7 mm) - same | 48-TQFP (7x7 mm) - same | 48-TQFP (7x7 mm) - same | 48-TQFP (7x7 mm) - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Core Speed | 100 MHz | 100 MHz | 100 MHz | 100 MHz | 100 MHz |
| Flash Memory | 128KB | 128KB | 64KB | 32KB | 128KB |
| RAM | 16KB | 16KB | 8KB | 4KB | 16KB |
| Temperature Grade | -40C to +85C (I) | Extended (-E) | -40C to +85C (I) | -40C to +85C (I) | -40C to +85C (I) |
| Integrated Op-Amps | 3 | 3 | 3 | 3 | 3 |
| Pin Compatibility | 48-pin TQFP reference | Pin-to-pin identical | Pin-to-pin identical | Pin-to-pin identical | Same footprint; verify peripheral pin mapping |
Principais diferenciais
- Full 128KB Flash with industrial temperature grade (vs DSPIC33CK64MP205T-I/PT)
- Cost-optimized option for small firmware (vs DSPIC33CK32MP205T-I/PT)
- Extended-temperature availability without redesign (vs DSPIC33CK128MP205-E/PT)
- General-purpose peripheral mix vs motor-specialized variant (vs DSPIC33CK128MP505T-I/PT)
Notas de projeto
The DSPIC33CK128MP205T-I/PT operates from a single 3.3V supply with an internal core regulator on the VCAP/VDDCORE pin. Fit a low-ESR ceramic capacitor (value per the Microchip datasheet electrical characteristics section) directly at the VCAP pin - insufficient or missing VCAP capacitance is the most common cause of erratic reset behavior and brown-out misbehavior. Decouple each VDD/VSS pair with 100 nF ceramics placed within 2 mm of the pins, plus bulk capacitance near the package.
Treat the analog domain separately: keep AVDD/AVSS routing on a quiet analog island with a ferrite or RC filter from the digital 3.3V rail, especially in digital power designs where the same PCB carries high-dv/dt switch nodes. Ground the comparator and op-amp reference paths to analog ground only. Pair PWM outputs with their grounds as short return loops to minimize radiated EMI from the TQFP's 0.5 mm pin pitch.
Verify peripheral pin selection (PPS) mapping in firmware before board release - the dsPIC33CK remappable pins (RPxx) mean any UART/SPI/CAN function can land on the wrong physical pin and escape schematic review. Also confirm oscillator configuration: the 100 MHz core derives from the PLL, so a misconfigured PLL multiplier silently halves performance (e.g., running at 64 MHz appears fully functional but misses control-loop deadlines). Use MPLAB Code Configurator to generate validated oscillator code.
For motor control or digital power boards, route the op-amp input traces (AN pins used as amplifier inputs) as short as possible and shield them with ground pour to prevent switching-noise coupling into current-sense signals. Sample ADCs synchronized to PWM center using the PTG or PWM trigger to avoid sampling during switch transitions - this layout-plus-timing technique is documented in Microchip's dsPIC33CK digital power reference designs.
Informações de conformidade
RoHS compliance and lead-free finish assumed per standard Microchip product offerings; confirm on the Microchip product page environmental section. AEC-Q100 qualification not stated in provided data.