DSPIC33FJ16GS404T-50I/PT - 50 MIPS 16KB Flash dsPIC DSC | TQFP-44
MPN: DSPIC33FJ16GS404T-50I/PT ✓ Hoạt độngDSPIC33FJ16GS404T-50I/PT Tóm tắt
What is a digital signal controller? A DSC is a hybrid device that merges a microcontroller's deterministic peripheral and interrupt architecture with a DSP's high-throughput computational engine. In the dsPIC33F family specifically, the controller targets power conversion and motor-control loops where a single chip must sample an analog signal, execute a control-law, and update a high-resolution PWM within sub-microsecond deadlines. The hierarchy is: DSC -> microcontroller + DSP -> embedded processor -> semiconductor. This dual-domain capability is what makes the DSPIC33FJ16GS404 ideal for digital SMPS controllers.
Key feature highlights include 4 high-speed PWM channels with 1.04 ns resolution, four on-chip op amps/comparators for current sensing, four 10-bit ADC sample-and-hold channels capable of 1.1 Msps conversion, and a 16-bit timer for power-loop scheduling. The device also exposes UART, SPI, and I2C interfaces for telemetry and housekeeping, plus a 3-wire programming/debug interface compatible with MPLAB ICD and the Explorer 16/32 development board. The industrial temperature grade (-40C to +85C) and built-in JTAG boundary scan simplify board-level test and qualification.
Architecturally, the dsPIC33F core uses a 5-stage pipeline and a separate X/Y data-space bus that lets a single instruction issue two operand fetches and a MAC in parallel. The result is deterministic DSP throughput without the instruction-fetch bottlenecks typical of pure microcontrollers. Combined with zero-overhead hardware looping and zero-overhead bit manipulation, the DSPIC33FJ16GS404 supports deterministic control loops for LLC, PFC, and Phase-Shifted Full-Bridge topologies.
Typical applications include digital SMPS power converters, UPS and telecom rectifiers, server and industrial AC/DC front ends, solar micro-inverters, LED lighting drivers, and BLDC/PMSM motor control. The TQFP-44 footprint and T/R packaging simplify high-volume factory assembly.
Design consideration: reserve pins AVSS/AGND with separate analog and digital ground pours joined at a single point near the MCU; the on-chip ADC's 1.1 Msps rate is sensitive to digital switching noise injected through shared ground returns.
This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet.
Bộ thay thế dễ dàng lắp đặt cho DSPIC33FJ16GS404T-50I/PT — cùng gói, chân-to-chân tương thích. Các bộ phận yêu cầu hàn PCB bị loại trừ.
Các biến thể trong loạt này
Các mẫu cùng loạt có thể lắp đặt dễ dàng tương thích với DSPIC33FJ16GS404T-50I/PT (cùng hình factor và footprint) — khác nhau ở Package, ADC, Communication Interfaces, Core Architecture, Data Bus Width.
DSPIC33FJ16GS404-50I/PT
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →DSPIC33FJ16GS404-50E/PT
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
DSPIC33FJ16GS404T-I/PT
✅ Drop-In ⚠️ Thông số chưa được xác minhLiên hệ để biết giá
Xem tài liệu →DSPIC33FJ16GS404T-50E/PT
✅ Drop-In ⚠️ Thông số chưa được xác minh📋 Tham chiếu thay thế (không có trong danh mục)
DSPIC33FJ16GS404T-50I/PT Tỷ lệ tối đa & tính chất điện
| Core Architecture | dsPIC33F (16-bit DSC) |
| CPU Clock Frequency | 50 MHz |
| Instruction Throughput | 50 MIPS |
| Program Memory | 16 KB Flash (16K x 8) |
| RAM | 2,048 words |
| Instruction Width | 24-bit |
| Hộp | 44-pin TQFP (10x10 mm) |
| Kiểu lắp đặt | Surface Mount |
| Khoảng nhiệt độ hoạt động | -40C to +85C (Industrial) |
| Communication Interfaces | UART, SPI, I2C |
| Bề rộng đường dữ liệu | 16-bit |
| Process Technology | CMOS |
| Boundary Scan | Yes (JTAG) |
| Trạng thái RoHS | Compliant |
| Lead-Free | Yes |
Cấu hình chân DSPIC33FJ16GS404T-50I/PT
| Chân 1 | AN0/RB0 — Analog input 0 / I/O port RB0 |
| Chân 2 | AN1/RB1 — Analog input 1 / I/O port RB1 |
| Chân 3 | AN2/RB2 — Analog input 2 / I/O port RB2 |
| Chân 4 | AN3/RB3 — Analog input 3 / I/O port RB3 |
| Chân 5 | VDD — Positive supply for digital I/O |
| Chân 6 | VSS — Digital ground reference |
| Chân 7 | OSC1/RA0 — Crystal oscillator input / I/O port RA0 |
| Chân 8 | OSC2/RA1 — Crystal oscillator output / I/O port RA1 |
| Chân 9 | RC13 — I/O port RC13 |
| Chân 10 | RC14 — I/O port RC14 |
| Chân 11 | SDA1/RG3 — I2C data / I/O port RG3 |
| Chân 12 | SCL1/RG2 — I2C clock / I/O port RG2 |
| Chân 13 | PWM1H/RD8 — PWM output 1 high / I/O port RD8 |
| Chân 14 | PWM1L/RD9 — PWM output 1 low / I/O port RD9 |
| Chân 15 | PWM2H/RD10 — PWM output 2 high / I/O port RD10 |
| Chân 16 | PWM2L/RD11 — PWM output 2 low / I/O port RD11 |
| Chân 17 | PWM3H/RD4 — PWM output 3 high / I/O port RD4 |
| Chân 18 | PWM3L/RD5 — PWM output 3 low / I/O port RD5 |
| Chân 19 | PWM4H/RD6 — PWM output 4 high / I/O port RD6 |
| Chân 20 | PWM4L/RD7 — PWM output 4 low / I/O port RD7 |
| Chân 21 | FLTA/RC10 — PWM fault input A / I/O port RC10 |
| Chân 22 | RC9 — I/O port RC9 |
| Chân 23 | RC8 — I/O port RC8 |
| Chân 24 | RC7 — I/O port RC7 |
| Chân 25 | RC6 — I/O port RC6 |
| Chân 26 | RC5 — I/O port RC5 |
| Chân 27 | RC4 — I/O port RC4 |
| Chân 28 | RC3 — I/O port RC3 |
| Chân 29 | RC2 — I/O port RC2 |
| Chân 30 | AVDD — Positive supply for analog peripherals |
| Chân 31 | AVSS — Analog ground reference |
| Chân 32 | AN4/RC1 — Analog input 4 / I/O port RC1 |
| Chân 33 | AN5/RC0 — Analog input 5 / I/O port RC0 |
| Chân 34 | AN6/RB4 — Analog input 6 / I/O port RB4 |
| Chân 35 | AN7/RB5 — Analog input 7 / I/O port RB5 |
| Chân 36 | AN8/RB6 — Analog input 8 / I/O port RB6 |
| Chân 37 | AN9/RB7 — Analog input 9 / I/O port RB7 |
| Chân 38 | AN10/RB8 — Analog input 10 / I/O port RB8 |
| Chân 39 | AN11/RB9 — Analog input 11 / I/O port RB9 |
| Chân 40 | TDO/RA10 — JTAG test data out / I/O port RA10 |
| Chân 41 | TCK/RA7 — JTAG test clock / I/O port RA7 |
| Chân 42 | TMS/RA8 — JTAG test mode select / I/O port RA8 |
| Chân 43 | TDI/RA9 — JTAG test data in / I/O port RA9 |
| Chân 44 | MCLR — Master clear reset (active-low) |
Ứng dụng tiêu biểu
DSPIC33FJ16GS404T-50I/PT phù hợp cho 8 Áp dụngs: Digital SMPS Power Converter, Telecom Rectifier and Server PSU, Solar Micro-Inverter and String Inverter, Industrial AC/DC and DC/DC Brick Converter, LED Lighting Driver, BLDC and PMSM Motor Control, Uninterruptible Power Supply (UPS), Wireless Power and Battery Charger.
Digital SMPS Power Converter
The DSPIC33FJ16GS404T-50I/PT is purpose-built for digital switch-mode power supply control, including isolated and non-isolated DC/DC topologies. The 50 MIPS core combined with on-chip high-resolution PWM (1 ns edge placement) and hardware MAC delivers the deterministic throughput required for voltage-mode and peak-current-mode control loops. The 16 KB Flash accommodates state-machine plus soft-start, fault handling, and PMBus telemetry firmware without external memory. The on-chip analog comparators enable cycle-by-cycle current limiting, a core safety function in PFC and LLC stages. The TQFP-44 footprint with exposed thermal pad keeps the BOM compact for high-volume production power supplies.
Được đề xuất
Telecom Rectifier and Server PSU
Front-end AC/DC rectifiers for telecom and server PSUs benefit from the DSPIC33FJ16GS404T-50I/PT's integrated PFC plus DC/DC control capability. The 50 MIPS throughput supports interleaved PFC with average-current-mode control plus a downstream LLC or phase-shifted full-bridge stage from a single controller. Hardware MAC instructions accelerate RMS and power-factor calculations at 50 kHz switching. The industrial temperature grade (-40C to +85C) matches NEBS-compliant telecom environments. On-chip UART enables PMBus/I2C telemetry to the system supervisor, reducing external component count.
Được đề xuất
Solar Micro-Inverter and String Inverter
Solar micro-inverters and string inverters require MPPT control plus grid-synchronization loops that fit naturally on the DSPIC33FJ16GS404T-50I/PT. The 50 MIPS DSP engine handles perturb-and-observe or incremental-conductance MPPT at sub-millisecond intervals while the on-chip ADC samples panel current and voltage at 1 Msps. Hardware PWM drives the H-bridge or push-pull stage with sub-microsecond dead-time control. The 16 KB Flash supports anti-islanding algorithms and grid-code firmware variants without external memory. Industrial temperature grade handles outdoor inverter cabinet conditions.
Được đề xuất
Industrial AC/DC and DC/DC Brick Converter
The DSPIC33FJ16GS404T-50I/PT is widely used in DOSA-standard brick converters for industrial 24V and 48V bus architectures. Its 50 MIPS throughput supports peak-current-mode control with adaptive slope compensation, while the on-chip op amps condition current-sense signals without external analog ICs. JTAG boundary scan accelerates board-level test on high-volume production lines. The TQFP-44 footprint is friendly to multi-layer PCB layouts with dedicated analog and digital ground planes. The -40C to +85C industrial temperature grade covers most factory-floor and outdoor enclosures.
Được đề xuất
LED Lighting Driver
Programmable LED drivers for commercial and architectural lighting use the DSPIC33FJ16GS404T-50I/PT for both PFC and constant-current control. The on-chip high-resolution PWM produces flicker-free dimming below 5% duty cycle, important for cinema and hospitality installations. The DSP engine runs color-mixing algorithms for tunable-white and RGB fixtures while the hardware MAC handles RMS current calculation for energy reporting. The 16 KB Flash accommodates DALI-2 or DMX512 protocol stacks alongside power-control firmware. Industrial temperature grade supports outdoor and high-bay fixtures.
Được đề xuất
BLDC and PMSM Motor Control
Although the DSPIC33FJ16GS404T-50I/PT is primarily a power-conversion controller, it also drives BLDC and PMSM motors in pumps, fans, and small appliances. The 50 MIPS core and hardware MAC implement field-oriented control (FOC) with sin/cos generation in a few hundred nanoseconds per loop iteration. Six PWM outputs drive a three-phase inverter with programmable dead time, while on-chip ADC samples phase currents for sensorless back-EMF observers. The 16 KB Flash accommodates speed PI loops plus fault handling without external memory. The TQFP-44 footprint is compatible with most small-motor inverter boards.
Được đề xuất
Uninterruptible Power Supply (UPS)
Online and line-interactive UPS systems use the DSPIC33FJ16GS404T-50I/PT to coordinate battery inverter, charger, and bypass switching. The 50 MIPS core executes RMS voltage regulation plus battery-current control loops simultaneously, while on-chip PWM drives the inverter H-bridge with sub-microsecond dead time. The 16 KB Flash stores inverter firmware, charger state machine, and front-panel communication protocols. The on-chip ADC samples battery voltage and current for state-of-charge estimation at high update rates. Industrial temperature grade ensures reliable operation in server-room and industrial UPS installations.
Được đề xuất
Wireless Power and Battery Charger
Wireless charging transmitters and high-power battery chargers benefit from the DSPIC33FJ16GS404T-50I/PT's 50 MIPS throughput for foreign-object detection, coil-tuning algorithms, and CC/CV charging profiles. The hardware MAC accelerates resonant-tank calculations, while the on-chip ADC samples coil current and voltage at high update rates. The 16 KB Flash stores Qi or proprietary protocol stacks plus safety firmware. JTAG boundary scan accelerates factory calibration and test. The TQFP-44 footprint is compact enough for under-desk wireless chargers and EV charging-station power modules.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho DSPIC33FJ16GS404T-50I/PT — so sánh, hướng dẫn thiết kế và thông tin tuân thủ.
Hướng dẫn chọn lựa
So sánh với các sản phẩm thay thế
| Tham số | Sản phẩm này | DSPIC33FJ16GS404-50I/PT | DSPIC33FJ16GS404-50E/PT | DSPIC33FJ16GS404T-I/PT |
|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | TQFP-44 (10x10 mm) T/R | TQFP-44 (10x10 mm) - same | TQFP-44 (10x10 mm) - same | TQFP-44 (10x10 mm) - same |
| Core Clock | 50 MHz | 50 MHz | 50 MHz | 50 MHz |
| Program Memory | 16 KB Flash | 16 KB Flash | 16 KB Flash | 16 KB Flash |
| RAM | 2,048 words | 2,048 words | 2,048 words | 2,048 words |
| Instruction Width | 24-bit | 24-bit | 24-bit | 24-bit |
| Operating Temperature | -40C to +85C | -40C to +85C | -40C to +125C | -40C to +85C |
| Packaging Format | Tape & Reel | Tray | Tray | Tape & Reel |
| Boundary Scan | Yes (JTAG) | Yes (JTAG) | Yes (JTAG) | Yes (JTAG) |
| Target Application | Digital SMPS | Digital SMPS - same | Digital SMPS - same | Digital SMPS - same |
Bảo phân biệt quan trọng
- Purpose-optimized SMPS peripheral mix (vsDSPIC33FJ16GS402-I/MM)
- Tape & Reel packaging for high-volume production (vsDSPIC33FJ16GS404-50I/PT)
- Industrial temperature grade for harsh environments (vsDSPIC33FJ16GS404T-50E/PT)
- Integrated boundary scan for board-level test (vsDSPIC33FJ128GP804-I/PT)
Ghi chú thiết kế
The TQFP-44 package has a typical theta_JA of approximately 50 C/W on a standard 4-layer JEDEC test board. At 50 MIPS with all peripherals active, typical core power dissipation is around 60-80 mW at 3.3V, which translates to a junction temperature rise of only 4-5C above ambient - well within the -40C to +85C industrial grade. However, when driving high-current PWM outputs at high switching frequency, total package dissipation can reach 200-300 mW. For applications near the upper temperature limit, use a copper pour directly under the exposed die pad and thermal vias to the inner ground plane to keep junction temperature within spec.
Separate analog and digital ground planes are mandatory for the DSPIC33FJ16GS404T-50I/PT to achieve rated ADC performance. Route the AVSS pin to a dedicated analog ground island that joins the digital ground at a single point - typically near the MCU's AVSS pin. The AVDD pin should be decoupled with a 100 nF ceramic plus 10 uF bulk capacitor placed within 5 mm of the pin. Place all analog signal traces (current-sense, voltage-sense) over the analog ground island only. PWM traces and digital signals should not cross analog signal traces to avoid capacitive coupling of switching noise into the ADC inputs.
A common pitfall when designing with the DSPIC33FJ16GS404T-50I/PT is failing to configure the JTAG/debug pins correctly in production firmware. By default, TMS, TCK, TDI, and TDO are enabled; for final production code, disable JTAG to free RA7-RA10 as general-purpose I/O and prevent firmware extraction via debug. Another pitfall is bypassing the MCLR pull-up - if MCLR floats, the device may reset intermittently under EMI. Always use a 10 kohm pull-up on MCLR plus a 100 nF cap to ground for noise immunity. Finally, when using the internal FRC oscillator, calibrate the frequency tuning register at production to avoid baud-rate errors in UART communication.
PWM traces on the DSPIC33FJ16GS404T-50I/PT carry high dV/dt signals (several volts per nanosecond) that can inject noise into adjacent analog traces through capacitive coupling. Keep PWM traces short and direct, and route them on an inner signal layer if possible, with continuous ground plane on the adjacent layer. If PWM traces must run on the outer layer next to analog traces, maintain at least 3x trace-width separation and place a ground trace between them. For high-current gate-drive outputs, use 50 ohm controlled impedance traces to avoid ringing at the MOSFET gate.
Thông tin tuân thủ
RoHS compliant and lead-free per Microchip product page. AEC-Q100 qualification status is not_applicable for this industrial-grade part - automotive designs should select an AEC-Q100 qualified dsPIC33F variant. Conflict-minerals declaration available from Microchip.