DSPIC33CH128MP205-I/PT - 100MHz Dual-Core DSC, 128KB | Microchip
MPN: DSPIC33CH128MP205-I/PT ✓ פעילDSPIC33CH128MP205-I/PT סקירה
A Digital Signal Controller (DSC) is a hybrid MCU+DSP class of device — a microcontroller core augmented with a single-cycle hardware multiplier, dual 40-bit accumulators, and DSP-oriented addressing modes. It sits in the hierarchy as: DSC -> 16-bit MCU -> Microcontroller -> Embedded Processor -> Semiconductor. The dsPIC33CH is the first Microchip DSC family to instantiate two dsPIC cores in one package, enabling master-slave architectures where one core offloads real-time control loops to the slave.
Key features include 152 KB total Flash (128 KB master / 24 KB shared), 16 KB SRAM, four 16-bit high-resolution PWM channels with 250 ps resolution, two 12-bit ADC modules running up to 3.5 Msps, four analog comparators, CAN FD, and a Functional Safety (FuSa) companion architecture. The dual-core topology dramatically reduces interrupt latency for time-critical control loops in digital power supply applications.
The device integrates dedicated peripherals for switched-mode power supply (SMPS) control — high-resolution PWM, slope compensation, and current blanking — and pairs this with motor-control PWM, quadrature encoder interfaces, and a Peripheral Trigger Generator (PTG). The slave core communicates with the master through shared RAM and hardware semaphores rather than over a mailbox peripheral.
Typical applications include wireless charging transmitters, server and telecom SMPS digital loops, BLDC / PMSM motor drives (drones, e-bikes, robot vacuum cleaners), and automotive sensors requiring ASIL-B-class functional safety. The FuSa features (lockstep monitor, dual watchdog timers, ECC on Flash/SRAM, hardware BIST) make it suitable for safety-critical applications.
When designing with this device, allocate the slave core to the tightest inner current control loop and the master to housekeeping, communications, and supervisory tasks. Ensure the dual-core mailbox is dimensioned for your worst-case inter-core message rate, and validate thermal rise under peak DSP load since simultaneous dual-core operation at 200 MHz adds measurable dissipation compared to single-core designs.
This page synthesises distributor stock and pricing, verified drop-in variants in the same TQFP-48 footprint, and practical dual-core design notes not found on the manufacturer summary page.
חלופות תחליף ישיר עבור DSPIC33CH128MP205-I/PT — אותו מארז, תואם פין-לפין. חלקים במארז שונה הדורשים עיבוד מחדש של ה-PCB אינם נכללים.
וריאנטים בסדרה זו
דגמים מאותה סדרה התואמים Drop-in עם DSPIC33CH128MP205-I/PT (אותו גורם צורה וטביעת רגל) — שונים ב Core Architecture, Package, High-Resolution PWM, ADC, Operating Temperature.
DSPIC33CH128MP205-I/M4
✅ Drop-Inצור קשר לקבלת מחיר
הצג גיליון נתונים ←DSPIC33CH128MP205-E/PT
✅ Drop-Inצור קשר לקבלת מחיר
הצג גיליון נתונים ←DSPIC33CK128MP205-I/PT
✅ Drop-In📋 חלופה להתייחסות (לא בקטלוג)
DSPIC33CH128MP203-I/PT
✅ Drop-In ⚠️ מפרטים לא מאומתים📋 חלופה להתייחסות (לא בקטלוג)
DSPIC33EP128GS705-I/PT
✅ Drop-In ⚠️ מפרטים לא מאומתיםצור קשר לקבלת מחיר
הצג גיליון נתונים ←DSPIC33CH128MP205-I/PT דירוגים מרביים ומאפיינים חשמליים
| Core Architecture | Dual-core dsPIC33C (master + slave), 16-bit DSC |
| Max CPU Frequency | 200 MHz per core (180 MHz dual-core mode) |
| Instruction Set | 16-bit dsPIC with DSP extensions |
| Program Flash (Master) | 128 KB |
| PRAM (Slave shared) | 4 KB |
| Total Flash | 152 KB (128 KB master + 24 KB shared) |
| SRAM | 16 KB |
| Operating Voltage | 3.0 V to 3.6 V |
| טמפרטורת פעולה | -40 C to +85 C (industrial) |
| מארז | TQFP-48 (PT), 7x7 mm |
| High-Resolution PWM | 4 x 16-bit, 250 ps resolution |
| ADC | 2 x 12-bit, up to 3.5 Msps |
| CAN FD | Yes |
| Functional Safety | FuSa features (lockstep, ECC, BIST) |
| סוג הרכבה | Surface Mount |
| רמת MSL | 3 (168 hours) |
| סטטוס RoHS | Compliant |
| DMA Channels | 8 |
תצורת פינים של DSPIC33CH128MP205-I/PT
| פין 1 | RP58/PWM4H/AN18/RB10 — Remappable I/O, PWM4H output, ADC analog input |
| פין 2 | RP59/PWM4L/CMP2A/AN17/RB11 — Remappable I/O, PWM4L output, comparator input |
| פין 3 | RP60/PWM3H/AN16/RB12 — Remappable I/O, PWM3H output |
| פין 4 | RP61/PWM3L/AN15/RB13 — Remappable I/O, PWM3L output |
| פין 5 | RP62/PWM2H/CMP1A/AN14/RB14 — Remappable I/O, PWM2H output |
| פין 6 | RP63/PWM2L/AN13/RB15 — Remappable I/O, PWM2L output |
| פין 7 | RP64/AN12/RB0 — Remappable I/O, ADC analog input |
| פין 8 | RP65/AN11/RB1 — Remappable I/O, ADC analog input |
| פין 9 | RP66/AN10/RB2 — Remappable I/O, ADC analog input |
| פין 10 | RP67/AN9/RB3 — Remappable I/O, ADC analog input |
| פין 11 | RP68/AN8/RB4 — Remappable I/O, ADC analog input |
| פין 12 | RP69/PWM1H/AN7/RB5 — Remappable I/O, PWM1H output |
| פין 13 | RP70/PWM1L/AN6/RB6 — Remappable I/O, PWM1L output |
| פין 14 | RP52/AN5/RC12 — Remappable I/O, ADC analog input |
| פין 15 | RP53/AN4/CMP2B/RC13 — Remappable I/O, comparator input |
| פין 16 | RP54/AN3/CMP1B/RC14 — Remappable I/O, comparator input |
| פין 17 | RP55/AN2/CMP3A/RC15 — Remappable I/O, comparator input |
| פין 18 | VDD — Digital supply voltage (3.0 V to 3.6 V) |
| פין 19 | VSS — Digital ground reference |
| פין 20 | RP75/SCL1/RC8 — I2C1 clock, remappable I/O |
| פין 21 | RP76/SDA1/RC9 — I2C1 data, remappable I/O |
| פין 22 | RP32/PWM1H/RC0 — Remappable I/O, PWM1H alt output |
| פין 23 | RP33/PWM1L/RC1 — Remappable I/O, PWM1L alt output |
| פין 24 | RP40/UART1TX/RC2 — UART1 transmit, remappable I/O |
| פין 25 | RP41/UART1RX/RC3 — UART1 receive, remappable I/O |
| פין 26 | RP42/SPI1SCK/RC4 — SPI1 clock, remappable I/O |
| פין 27 | RP43/SPI1SDI/RC5 — SPI1 data in, remappable I/O |
| פין 28 | RP44/SPI1SDO/RC6 — SPI1 data out, remappable I/O |
| פין 29 | RP45/CAN1TX/RC7 — CAN FD transmit, remappable I/O |
| פין 30 | RP46/CAN1RX/RD8 — CAN FD receive, remappable I/O |
| פין 31 | VDD — Digital supply voltage (3.0 V to 3.6 V) |
| פין 32 | VSS — Digital ground reference |
| פין 33 | MCLR — Master clear reset (active low) |
| פין 34 | OSCI/RC12 — Crystal oscillator input or remappable I/O |
| פין 35 | OSCO/RC13 — Crystal oscillator output or remappable I/O |
| פין 36 | SOSCI/RP50/RC14 — Secondary oscillator in |
| פין 37 | SOSCO/RP51/RC15 — Secondary oscillator out |
| פין 38 | TDO/RP48/RD3 — JTAG test data out |
| פין 39 | TDI/RP49/RD4 — JTAG test data in |
| פין 40 | TMS/RP55/RD5 — JTAG test mode select |
| פין 41 | TCK/RP56/RD6 — JTAG test clock |
| פין 42 | AVSS — Analog ground reference |
| פין 43 | AVDD — Analog supply voltage (3.0 V to 3.6 V) |
| פין 44 | RP46/AN1/CMP3C/RA0 — Remappable I/O, ADC analog, comparator input |
| פין 45 | RP47/AN0/CMP3D/RA1 — Remappable I/O, ADC analog, comparator input |
| פין 46 | RP48/AN2/CMP2C/RA2 — Remappable I/O, comparator input |
| פין 47 | RP49/AN3/CMP2D/RA3 — Remappable I/O, comparator input |
| פין 48 | RP50/PGC1/AN4/RA4 — PGC1 ICD clock, debug port, ADC input |
יישומים טיפוסיים
DSPIC33CH128MP205-I/PT מתאים עבור 6 יישוםs: Wireless Charging Transmitter Control, Server / Telecom SMPS Digital Loop, BLDC / PMSM Motor Drives (Drones, e-Bikes, Robotics), Automotive Safety Sensors (ASIL-B), Digital LED Lighting Drivers, Industrial AC-DC Front-End PFC.
Wireless Charging Transmitter Control
The DSPIC33CH128MP205-I/PT's dual-core architecture suits Qi and AirFuel wireless charging transmitters where the slave core services the resonant inverter inner control loop (100 kHz to 6.78 MHz) while the master handles Qi protocol state machine, Foreign Object Detection (FOD), and PMBus telemetry. The 250 ps PWM resolution is critical for ZVS/soft-switching timing, and the 3.5 Msps ADC samples tank current synchronously with the PWM cycle for cycle-by-cycle current mode control. Compared to a single-core MCU, the slave core's deterministic response removes the 1-3 microsecond jitter introduced by wireless stack interrupt latencies, increasing coil-to-coil efficiency by 2-4 percentage points in production hardware.
מומלץ
Server / Telecom SMPS Digital Loop
In 48V-input intermediate bus converters and LLC resonant converters for data-centre PSU applications, the DSPIC33CH128MP205-I/PT drives four high-resolution PWM channels that deliver the dead-band accuracy required for primary-side synchronous rectification. The slave core executes the voltage-mode control loop at full 200 MHz clock, achieving loop bandwidths above 50 kHz that are unreachable on STM32 or LPC-class Cortex-M alternatives. The master core manages PMBus telemetry, fault logging, and the redundant housekeeping tasks. Functional Safety features (lockstep core monitor, ECC on SRAM/Flash, dual-window watchdog) support N+1 redundant PSU designs where IEC 62368-1 compliance is mandatory.
מומלץ
BLDC / PMSM Motor Drives (Drones, e-Bikes, Robotics)
Sensorless Field-Oriented Control (FOC) of brushless DC and permanent-magnet synchronous motors benefits from the DSPIC33CH128MP205-I/PT's dual-core partitioning: the slave core runs the 20 kHz current control loop using the 250 ps PWM and the 3.5 Msps ADC's simultaneous sampling of phase currents, while the master executes the slower position/speed estimator and UART/CAN telemetry stack. The hardware Peripheral Trigger Generator (PTG) synchronises ADC samples to PWM edges, eliminating software timing jitter that limits the achievable torque bandwidth. Drone ESC and e-bike controller reference designs from Microchip use this exact partitioning with closed-loop current bandwidths exceeding 5 kHz at 48 V bus.
מומלץ
Automotive Safety Sensors (ASIL-B)
Automotive sensors requiring ASIL-B functional safety under ISO 26262 (steering angle sensors, throttle position, brake-by-wire sensors) deploy the DSPIC33CH128MP205-I/PT's FuSa features: lockstep master-slave cores, ECC-protected SRAM/Flash, dual window watchdogs, and hardware BIST. The CAN FD interface supports Automotive Bus architectures where bandwidths above 2 Mbps are needed (CAN FD frames over classical CAN). AEC-Q100 qualified die revisions are marketed as -E/PT or with explicit automotive suffixes; designers must verify the exact ordering code with Microchip for ASIL-B target approval.
מומלץ
Digital LED Lighting Drivers
High-density horticultural and architectural LED drivers use the DSPIC33CH128MP205-I/PT's four high-resolution PWM channels to drive multiple parallel boost/flyback stages with 0.01% dimming accuracy at PWM frequencies above 1 MHz, eliminating audible flicker and visible strobing. The slave core services up to four independent LED strings with per-string constant-current regulation while the master core communicates via DALI-2 or DMX512 and runs the colour-mixing algorithm. Compared to simple GPIO-PWM approaches, this architecture achieves ENERGY STAR and DLC Premium dimming compliance without external dimming controllers.
מומלץ
Industrial AC-DC Front-End PFC
Power Factor Correction (PFC) stages in industrial AC-DC converters (3 kW to 22 kW) operate the slave core in average-current-mode control loops that require cycle-by-cycle ADC sampling and PWM updates at the 100 kHz switching frequency. The DSPIC33CH128MP205-I/PT's Peripheral Trigger Generator synchronises ADC samples to the PWM zero-cross event, eliminating PWM-edge jitter. The master core handles I2C/PMBus communications, AC mains zero-cross detection, and soft-start sequencing. Convection-cooled industrial designs benefit from the 200 MHz clock headroom that lets the slave core close the loop in well under 1 microsecond on every switching cycle.
מומלץ
סיכום מוצרים מומלצים
נתוני עזר הנדסיים עבור DSPIC33CH128MP205-I/PT — השוואה, הנחיות תכנון ומידע על תאימות.
מדריך בחירה
השוואה עם חלופות
| פרמטר | מוצר זה | DSPIC33CH128MP205-I/M4 | DSPIC33CH128MP205-E/PT | DSPIC33CK128MP205-I/PT |
|---|---|---|---|---|
| Package | TQFP-48 (7x7) | TQFP-48 (7x7) - same | TQFP-48 (7x7) - same | TQFP-48 (7x7) - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Core Architecture | Dual-core 16-bit DSC | Dual-core 16-bit DSC | Dual-core 16-bit DSC | Single-core 16-bit DSC |
| Max Clock Frequency | 200 MHz per core | 200 MHz per core | 200 MHz per core | 100 MHz single core |
| Flash Memory | 152 KB total (128 KB + 24 KB shared) | 152 KB total | 152 KB total | 128 KB |
| SRAM | 16 KB | 16 KB | 16 KB | 16 KB |
| Temperature Grade | -40 C to +85 C (industrial) | -40 C to +85 C | -40 C to +125 C (extended) | -40 C to +85 C |
| Functional Safety (FuSa) | Yes (lockstep, ECC, BIST) | Yes | Yes | No (lockstep not present) |
מבדילים עיקריים
- Dual-core 16-bit DSC - first of its kind in the dsPIC33 family (לעומתDSPIC33CK128MP205-I/PT)
- Functional Safety (FuSa) features: lockstep, ECC, hardware BIST (לעומתDSPIC33EP128GS705-I/PT)
- Higher dual-core clock (180 MHz per core in dual-mode) (לעומתDSPIC33CK128MP205-I/PT)
- Same TQFP-48 package across CH and CK families (לעומתDSPIC33CH128MP205-E/PT)
הערות תכנון
Estimated: at 200 MHz dual-core operation, the DSPIC33CH128MP205-I/PT core logic power consumption is approximately 220 mW at 3.3 V (PWM, ADC, CAN FD active, both cores running). Decouple each VDD/VSS pair with 100 nF X7R ceramic placed within 5 mm of the pin. Add a bulk 10 uF tantalum near the AVDD/AVSS pair and route AVSS directly to the ground plane via a single via. Failing to decouple the AVDD line separately from VDD adds ADC reference noise that couples to current-sense sampling. AVDD must never be supplied from a switching regulator output without LC filtering; use a separate LDO or filter ferrite to achieve <1 mV ripple on AVDD.
Estimated: simultaneous dual-core 200 MHz operation with all peripherals active (PWM, ADC, CAN FD, DMA) dissipates approximately 400 mW. The TQFP-48 (7x7 mm) with exposed thermal pad has theta_JA of approximately 50 C/W on a 2-layer 1 oz PCB, so dual-core operation above 85 C ambient requires a 4-layer PCB with dedicated ground plane and copper pouring over the thermal pad. Place thermal vias in a 4x4 array under the exposed pad; failure to stitch the pad to internal ground layers can raise junction temperature 15-25 C above design target at full dual-core load.
A common pitfall is leaving the slave core uninitialised while configuring shared RAM regions, which causes inter-core variable corruption. Always initialise the slave core's stack pointer and PRAM region from the master during boot via the slave's debug entry point. Second common pitfall: sharing a single DMA channel between cores without explicit ownership tracking causes priority inversion. Assign DMA channels statically (master owns channels 0-3, slave owns 4-7) and document ownership in firmware headers. Third common pitfall: configuring the ADC's Peripheral Trigger Generator (PTG) without aligning the trigger source to the high-resolution PWM reload event, which adds sample-to-PWM jitter that limits control loop bandwidth.
Use a 4-layer PCB stack-up with the second layer as a continuous ground plane routed under the TQFP-48 package. Keep switching PWM output traces (PWMxH/L) routed as short, impedance-controlled microstrip on the top layer. Place the crystal load capacitors within 5 mm of OSCI/OSCO pins and guard the trace with a ground ring to suppress EMI. The CAN FD bus requires a 120 ohm termination at each end of the bus; placing termination inside the DSPIC's package is impossible, so design the PCB with provision for split or single 120 ohm termination.
מידע על תאימות
Industrial grade (-I/PT) is not AEC-Q100 qualified; Microchip offers AEC-Q100 qualified variants in the -E/PT (extended) and automotive-specific ordering codes. RoHS and lead-free compliance per Microchip product page; halogen-free per industry-standard marking.
