DSPIC33FJ16GS404T-50I/PT - 50 MIPS 16KB Flash dsPIC DSC | TQFP-44
N.º da peça: DSPIC33FJ16GS404T-50I/PT ✓ Ativo| Qtd. | Preço unitário | Total |
|---|---|---|
| 1 | $4.2 | $4,20 |
| 10 | $3.78 | $37,80 |
| 100 | $3.36 | $336,00 |
| 500 | $2.95 | $1.475,00 |
| 1.000 | $2.55 | $2.550,00 |
DSPIC33FJ16GS404T-50I/PT Visão geral
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.
Alternativas drop-in para DSPIC33FJ16GS404T-50I/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 DSPIC33FJ16GS404T-50I/PT (mesmo formato e footprint) — diferindo em Package, ADC, Communication Interfaces, Core Architecture, Data Bus Width.
Ferramenta de comparação rápida — selecione peças alternativas para comparação lado a lado:
DSPIC33FJ16GS404-50I/PT
✅ Drop-In✓ Em estoque
$4.18 / unidade
Ver ficha técnica →DSPIC33FJ16GS404-50E/PT
✅ Drop-In📋 Alternativa de referência (fora do catálogo)
DSPIC33FJ16GS404T-I/PT
✅ Drop-In ⚠️ Especificações não verificadas✓ Em estoque
$3.34 / unidade
Ver ficha técnica →DSPIC33FJ16GS404T-50E/PT
✅ Drop-In ⚠️ Especificações não verificadas📋 Alternativa de referência (fora do catálogo)
DSPIC33FJ16GS404T-50I/PT Classificações máximas e características elétricas
| 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 |
| Encapsulamento | 44-pin TQFP (10x10 mm) |
| Tipo de montagem | Surface Mount |
| Faixa de temperatura de operação | -40C to +85C (Industrial) |
| Communication Interfaces | UART, SPI, I2C |
| Largura do barramento de dados | 16-bit |
| Process Technology | CMOS |
| Boundary Scan | Yes (JTAG) |
| Status RoHS | Compliant |
| Lead-Free | Yes |
Configuração de pinos do DSPIC33FJ16GS404T-50I/PT
| Pino 1 | AN0/RB0 — Analog input 0 / I/O port RB0 |
| Pino 2 | AN1/RB1 — Analog input 1 / I/O port RB1 |
| Pino 3 | AN2/RB2 — Analog input 2 / I/O port RB2 |
| Pino 4 | AN3/RB3 — Analog input 3 / I/O port RB3 |
| Pino 5 | VDD — Positive supply for digital I/O |
| Pino 6 | VSS — Digital ground reference |
| Pino 7 | OSC1/RA0 — Crystal oscillator input / I/O port RA0 |
| Pino 8 | OSC2/RA1 — Crystal oscillator output / I/O port RA1 |
| Pino 9 | RC13 — I/O port RC13 |
| Pino 10 | RC14 — I/O port RC14 |
| Pino 11 | SDA1/RG3 — I2C data / I/O port RG3 |
| Pino 12 | SCL1/RG2 — I2C clock / I/O port RG2 |
| Pino 13 | PWM1H/RD8 — PWM output 1 high / I/O port RD8 |
| Pino 14 | PWM1L/RD9 — PWM output 1 low / I/O port RD9 |
| Pino 15 | PWM2H/RD10 — PWM output 2 high / I/O port RD10 |
| Pino 16 | PWM2L/RD11 — PWM output 2 low / I/O port RD11 |
| Pino 17 | PWM3H/RD4 — PWM output 3 high / I/O port RD4 |
| Pino 18 | PWM3L/RD5 — PWM output 3 low / I/O port RD5 |
| Pino 19 | PWM4H/RD6 — PWM output 4 high / I/O port RD6 |
| Pino 20 | PWM4L/RD7 — PWM output 4 low / I/O port RD7 |
| Pino 21 | FLTA/RC10 — PWM fault input A / I/O port RC10 |
| Pino 22 | RC9 — I/O port RC9 |
| Pino 23 | RC8 — I/O port RC8 |
| Pino 24 | RC7 — I/O port RC7 |
| Pino 25 | RC6 — I/O port RC6 |
| Pino 26 | RC5 — I/O port RC5 |
| Pino 27 | RC4 — I/O port RC4 |
| Pino 28 | RC3 — I/O port RC3 |
| Pino 29 | RC2 — I/O port RC2 |
| Pino 30 | AVDD — Positive supply for analog peripherals |
| Pino 31 | AVSS — Analog ground reference |
| Pino 32 | AN4/RC1 — Analog input 4 / I/O port RC1 |
| Pino 33 | AN5/RC0 — Analog input 5 / I/O port RC0 |
| Pino 34 | AN6/RB4 — Analog input 6 / I/O port RB4 |
| Pino 35 | AN7/RB5 — Analog input 7 / I/O port RB5 |
| Pino 36 | AN8/RB6 — Analog input 8 / I/O port RB6 |
| Pino 37 | AN9/RB7 — Analog input 9 / I/O port RB7 |
| Pino 38 | AN10/RB8 — Analog input 10 / I/O port RB8 |
| Pino 39 | AN11/RB9 — Analog input 11 / I/O port RB9 |
| Pino 40 | TDO/RA10 — JTAG test data out / I/O port RA10 |
| Pino 41 | TCK/RA7 — JTAG test clock / I/O port RA7 |
| Pino 42 | TMS/RA8 — JTAG test mode select / I/O port RA8 |
| Pino 43 | TDI/RA9 — JTAG test data in / I/O port RA9 |
| Pino 44 | MCLR — Master clear reset (active-low) |
Aplicações típicas
DSPIC33FJ16GS404T-50I/PT é adequado para 8 aplicaçãos: 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.
Recomendado
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.
Recomendado
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.
Recomendado
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.
Recomendado
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.
Recomendado
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.
Recomendado
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.
Recomendado
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.
Recomendado
Resumo dos produtos recomendados
Dados de referência de engenharia para DSPIC33FJ16GS404T-50I/PT — comparação, orientação de projeto e informações de conformidade.
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Comparação com alternativas
| Parâmetro | Este produto | 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 |
Principais diferenciais
- Purpose-optimized SMPS peripheral mix (vs DSPIC33FJ16GS402-I/MM)
- Tape & Reel packaging for high-volume production (vs DSPIC33FJ16GS404-50I/PT)
- Industrial temperature grade for harsh environments (vs DSPIC33FJ16GS404T-50E/PT)
- Integrated boundary scan for board-level test (vs DSPIC33FJ128GP804-I/PT)
Notas de projeto
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.
Informações de conformidade
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.