DSPIC33FJ16MC304-I/PT - 16-bit Motor Control DSC | Microchip
料号： DSPIC33FJ16MC304-I/PT ✓ 量产中| 数量 | 单价 | 小计 |
|---|---|---|
| 1 | $7.02 | $7.02 |
| 10 | $6.55 | $65.50 |
| 100 | $5.95 | $595.00 |
| 500 | $5.45 | $2,725.00 |
| 1,000 | $4.98 | $4,980.00 |
DSPIC33FJ16MC304-I/PT 概述
A Digital Signal Controller blends a microcontroller (MCU) with Digital Signal Processor (DSP) functionality in a single chip. In the power-management hierarchy, the dsPIC33F family sits above general-purpose 8-bit MCUs and beside the dsPIC30F (5 V) family, offering 3.3 V operation and more on-chip memory for embedded control applications that need both real-time control loops and DSP math.
Key features include two high-speed PWM generators with independent timebases for motor drive topologies, up to four high-speed analog comparators with direct connection to the PWM for fast overcurrent shutdown, Peripheral Pin Select (PPS) for flexible pin mapping, and an on-chip ADC. The 40 MIPS core executes DSP instructions such as MAC and multiply operations with 24-bit program memory width.
Architecturally, the device pairs a 16-bit MCU core with DSP engine enhancements: dual 40-bit accumulators, hardware division support, and deterministic interrupt latency that suits closed-loop current control at PWM frequencies of tens of kilohertz. Flash-based program memory enables field firmware updates, and the 2 KB SRAM supports control-state data and communication buffers.
Typical applications include Brushless DC (BLDC) and Permanent Magnet Synchronous Motor (PMSM) drives, power-factor-correction converters, digital power supplies, and embedded industrial automation nodes where motor control and DSP filtering coexist.
Design consideration: operate from a 3.0 V to 3.6 V supply and budget the 44-pin TQFP (10 x 10 mm) land pattern with exposed thermal relief via solid ground planes; the MCLR pin requires the recommended pull-up and capacitor network per the family reference design.
This page synthesizes verified distributor data, drop-in family alternatives, application guidance, and long-tail selection information not consolidated in the manufacturer datasheet.
直接替换替代料： DSPIC33FJ16MC304-I/PT ——相同封装，引脚兼容。需要 PCB 改动的不同封装料号已排除。
本系列中的变体
可与以下型号直接替换的同系列型号： DSPIC33FJ16MC304-I/PT （相同外形与封装尺寸） ——差异在于 Core Architecture, PWM Generators, Package, Supply Voltage Range, Mounting Type.
快速对比工具——选择替代料号进行并排对比：
DSPIC33FJ16MC304-H/PT
✅ 直接替换✓ 有现货
$3.72 / 个
查看数据手册 →DSPIC33FJ16MC304-E/PT
✅ 直接替换✓ 有现货
$3.45 / 个
查看数据手册 →DSPIC33FJ32MC204-I/PT
✅ 直接替换 ⚠️ 规格未核验📋 参考替代料（不在目录中）
DSPIC33FJ16MC304T-I/PT
✅ 直接替换📋 参考替代料（不在目录中）
DSPIC33FJ16MC304-I/ML
✅ 直接替换📋 参考替代料（不在目录中）
DSPIC33FJ16MC304-I/PT 最大额定值与电气特性
| Core Architecture | 16-bit DSC (MCU + DSP) |
| Maximum Clock Speed | 40 MHz (40 MIPS) |
| Program Memory (Flash) | 16 KB |
| Program Memory Width | 24-bit |
| SRAM | 2 KB |
| Supply Voltage Range | 3 V to 3.6 V |
| Number of I/O | 35 |
| PWM Generators | 2 high-speed with independent timebases |
| Analog Comparators | Up to 4 high-speed |
| 工作温度 | -40C to +85C (Industrial) |
| 封装 | 44-pin TQFP (PT), 10 x 10 mm, 1 mm height |
| 安装类型 | Surface Mount (gull-wing) |
| Special Peripherals | Peripheral Pin Select (PPS) |
| RoHS 状态 | Compliant |
| Lead Free | Yes |
| Lifecycle Stage | Active |
DSPIC33FJ16MC304-I/PT 44-pin tqfp (pt), 10 x 10 mm, 1 mm height 引脚配置指南
DSPIC33FJ16MC304-I/PT（44-pin tqfp (pt), 10 x 10 mm, 1 mm height 封装）的引脚配置。 该数字 IC 包含 GPIO、通信接口（UART、SPI、I2C）和电源引脚。请参阅制造商数据手册以了解复用引脚功能和配置选项。对嵌入式系统设计和 PCB 布局至关重要。
暂无详细引脚数据： DSPIC33FJ16MC304-I/PT.
请参阅 数据手册 以查看完整引脚配置。
典型应用
DSPIC33FJ16MC304-I/PT 适用于 6 应用s: BLDC Motor Drives, PMSM Field-Oriented Control, Digital Power Supplies, Power Factor Correction, Industrial Automation and Sensing Nodes, Embedded Motor-Control Development and Education.
BLDC Motor Drives
The DSPIC33FJ16MC304-I/PT is purpose-built for Brushless DC motor control. Its two high-speed PWM generators with independent timebases drive three-phase inverter bridges with complementary or independent PWM pairs, while up to four high-speed comparators wired directly to the PWM module provide cycle-by-cycle overcurrent shutdown without CPU intervention. The 40 MIPS core with DSP MAC instructions executes Clarke/Park transforms and PI current loops well within PWM periods of 20 kHz or higher. With 16 KB Flash, complete sensored or sensorless trapezoidal and FOC firmware fits on-chip. Place the controller between gate drivers and feedback dividers with short PWM traces to limit ringing; Peripheral Pin Select lets you route PWM outputs to the cleanest board locations. This yields deterministic current-loop control with hardware-level fault protection.
推荐
PMSM Field-Oriented Control
For Permanent Magnet Synchronous Motor drives, the DSPIC33FJ16MC304-I/PT provides the deterministic 40 MIPS execution needed for FOC: single-cycle 16x16 MAC operations, dual 40-bit accumulators for the PI current controllers, and fast interrupt response for PWM-update-synchronized sampling. The two independent PWM timebases support space-vector modulation with adjustable dead time, and the on-chip ADC captures phase currents synchronized to the PWM center. With 16 KB Flash and 2 KB SRAM, a full sensorless FOC stack with observer-based position estimation fits in the device for low-to-medium complexity drives. Hardware comparators back up software current limits, which is essential during high-torque transients. Designers should budget SRAM carefully, as 2 KB requires efficient fixed-point data structures rather than floating-point tables.
推荐
Digital Power Supplies
The DSPIC33FJ16MC304-I/PT suits digitally controlled AC-DC and DC-DC converters: its high-speed PWM with independent timebases implements voltage-mode or current-mode control at switching frequencies in the hundreds of kilohertz, and the fast analog comparators provide hardware overcurrent/overvoltage protection with microsecond response that software alone cannot match. The 40 MIPS DSP core runs compensator math (3p3z, PI) deterministically each switching cycle, while 16 KB Flash holds control firmware, soft-start sequencing, and fault logging. Peripheral Pin Select simplifies routing of PWM, feedback, and telemetry signals on dense power boards. Operate from a clean 3.3 V rail derived from an auxiliary supply, and keep the analog feedback traces away from gate-drive loops to preserve ADC accuracy and comparator thresholds.
推荐
Power Factor Correction
Continuous-mode Power Factor Correction converters benefit directly from the DSPIC33FJ16MC304-I/PT architecture. The controller samples input voltage and inductor current each switching cycle through the ADC, computes the current reference as a rectified-sine envelope scaled by the voltage-loop output, and updates the high-speed PWM duty in a deterministic interrupt at the switching frequency - a workload the 40 MIPS DSP core with single-cycle MAC handles comfortably. Fast comparators implement cycle-by-cycle current limiting that protects the MOSFET during line transients or startup, independent of firmware latency. With 16 KB Flash, PCC and average-current-mode PCC firmware plus communication diagnostics fit on-chip. Peripheral Pin Select allows PWM outputs and feedback inputs to be mapped to optimal PCB locations, minimizing loop area on the control side of the board.
推荐
Industrial Automation and Sensing Nodes
Beyond motor drives, the DSPIC33FJ16MC304-I/PT serves as a compact industrial control and sensing node. The 40 MIPS core executes DSP filtering (IIR/FIR) on sensor streams - vibration, current, or pressure - while the MCU peripherals handle communication, sequencing, and digital I/O across 35 available pins. Peripheral Pin Select maps UART, SPI, and I2C functions flexibly, easing board-level routing in retrofit or mixed-signal designs. The industrial -40C to +85C rating matches factory-floor ambient requirements, and the 44-pin TQFP's 10 x 10 mm body fits dense control cards. With 16 KB Flash, protocol handling plus local signal-processing routines fit comfortably; use the hardware comparators as zero-crossing detectors for AC line monitoring. Design decoupling with 0.1 uF ceramics at each VDD pin and a solid ground plane to protect ADC readings from switching noise.
推荐
Embedded Motor-Control Development and Education
The DSPIC33FJ16MC304-I/PT is a strong platform for learning and prototyping motor-control and DSP techniques. The family is supported by Microchip's MPLAB X IDE, the XC16 compiler, and motor-control application libraries covering BLDC, ACIM, and stepper algorithms, so students and engineers can move from datasheet to spinning motor quickly. The 44-pin TQFP is hand-solderable relative to BGA alternatives and breadboard-adaptable via adapter boards, and in-circuit serial programming through MCLR/PGD/PGC means no socket programmer is needed. Because drop-in siblings (16 KB/32 KB Flash, industrial/extended temperature grades) share the footprint, a single prototype PCB scales across variants without redesign. Firmware portability across the dsPIC33FJ16MC family also protects educational investment as project requirements grow in memory or peripheral complexity.
推荐
推荐产品汇总
工程参考数据： DSPIC33FJ16MC304-I/PT ——对比、设计指导和合规信息。
选型指南
与替代料对比
| 参数 | 本产品 | DSPIC33FJ16MC304-H/PT | DSPIC33FJ16MC304-E/PT | DSPIC33FJ32MC204-I/PT | DSPIC33FJ16MC304-I/ML |
|---|---|---|---|---|---|
| Package | 44-pin TQFP (PT), 10 x 10 mm | 44-pin TQFP (PT) - same | 44-pin TQFP (PT) - same | 44-pin TQFP (PT) - same | 44-pin QFN (ML) - different body |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Flash Program Memory | 16 KB | 16 KB | 16 KB | 32 KB | 16 KB |
| SRAM | 2 KB | 2 KB | 2 KB | 2 KB | 2 KB |
| Core Speed | 40 MHz / 40 MIPS | 40 MHz / 40 MIPS | 40 MHz / 40 MIPS | 40 MHz / 40 MIPS | 40 MHz / 40 MIPS |
| Operating Temperature | -40C to +85C (Industrial) | 0C to +70C (Commercial) | -40C to +125C (Extended) | -40C to +85C (Industrial) | -40C to +85C (Industrial) |
| PWM / Comparators | 2 PWM generators, up to 4 comparators | 2 PWM generators, up to 4 comparators | 2 PWM generators, up to 4 comparators | 2 PWM generators, up to 4 comparators | 2 PWM generators, up to 4 comparators |
| Supply Voltage | 3 V to 3.6 V | 3 V to 3.6 V | 3 V to 3.6 V | 3 V to 3.6 V | 3 V to 3.6 V |
关键差异点
- Motor-control-optimized peripheral set （对比 DSPIC33FJ16GP304-I/ML (general-purpose sibling))
- Cost-optimal 16 KB Flash vs 32 KB upgrade （对比 DSPIC33FJ32MC204-I/PT)
- Industrial temperature rating at standard price tier （对比 DSPIC33FJ16MC304-H/PT)
- Trade-off: limited SRAM （对比 DSPIC33FJ128MC804-I/PT)
设计说明
The DSPIC33FJ16MC304-I/PT operates from a 3.0 V to 3.6 V supply per the family datasheet (70283K). Place a 0.1 uF ceramic decoupling capacitor at every VDD pin pair, plus one bulk 4.7 uF to 10 uF capacitor near the device. Do not power the controller from the same rail as motor gate drivers without an LC or LDO filter stage - PWM switching transients couple into the supply and can cause ADC errors or spurious comparator trips. Follow the minimal pin-connection checklist in the 'Getting Started' section of datasheet 70283K before first power-up.
The 44-pin TQFP (PT) has 0.8 mm lead pitch with gull-wing leads; use the IPC-recommended land pattern with a 1:1 pad match and slight toe extension for inspectable solder joints. Keep the high-speed PWM traces short and routed away from ADC/analog feedback lines. Peripheral Pin Select lets you remap functions, so route first and configure PPS second. Provide thermal relief through a solid ground plane - the TQFP has no exposed pad, so heat exits primarily through the leads.
MCLR must be pulled up to VDD (typically 10 kohm) with the datasheet-recommended capacitor network, or in-circuit programming and debug will fail intermittently. Do not leave PGD/PGC unbuffered on long cables. When substituting the -H/PT (0C to +70C) or -E/PT (-40C to +125C) grades, verify the ambient inside the enclosure - a part near a power stage frequently exceeds 85C, which is why the -E grade exists. Also note the 2 KB SRAM limit: fixed-point, statically allocated buffers are mandatory for control loops.
Estimated: at 40 MIPS with moderate I/O loading, the dsPIC33FJ16MC304-I/PT typically dissipates well under 0.5 W, so with a TQFP theta_JA in the 50-70 C/W range (estimate; consult datasheet 70283K for the exact value) the junction rise above ambient is under 35 C - no heatsink is needed. However, in sealed enclosures above 60 C ambient, the -I/PT grade margin shrinks; derate by selecting the -E/PT extended-grade variant rather than adding airflow.
合规信息
RoHS compliant and lead-free per Master Electronics listing (plastic 44-pin TQFP, gull-wing, lead-free). REACH, halogen-free, and conflict-minerals statuses not stated in the reviewed sources; consult Microchip environmental documentation.
