DSPIC33FJ16GS504T-50I/ML - 50 MIPS 16KB Flash SMPS DSC | Microchip
MPN: DSPIC33FJ16GS504T-50I/ML ✓ Hoạt độngDSPIC33FJ16GS504T-50I/ML Tóm tắt
A Digital Signal Controller (DSC) is a hybrid device that combines a microcontroller's interrupt-driven control capability with a DSP's mathematical throughput, enabling single-chip implementation of closed-loop digital control laws. Within Microchip's taxonomy, the dsPIC33F GS family specifically targets Switch-Mode Power Supply (SMPS) topologies such as PFC, LLC, phase-shifted full-bridge, and synchronous-rectified converters, sitting between general-purpose PIC24 MCUs and higher-pin-count dsPIC33F MCUs.
Key features include dedicated PWM modules with up to 1.04 ns PWM resolution for high-frequency digital power loops, 4 analog comparators with programmable reference ladders, a 10-bit ADC with up to 4 MSPS sampling, and dual watch-dog timers for Class B safety compliance. The 50 MIPS core, combined with single-cycle MAC and barrel-shifter instructions, sustains multi-loop SMPS control cycles without offloading to external DSPs.
Architecture-wise, the DSPIC33FJ16GS504T-50I/ML employs a modified Harvard core with separate program and data buses plus a DSP ALU supporting fractional and integer arithmetic. The SMPS peripherals are tightly coupled to the CPU through dual-edge trigger routing, allowing comparator faults to trigger PWM shutdown within one instruction cycle—critical for current-mode control and short-circuit protection.
Typical applications include AC-DC converters with Power Factor Correction, isolated DC-DC converters (LLC, phase-shifted full-bridge), uninterruptible power supplies, digital LED drivers, and solar micro-inverters. The wide operating temperature range of -40C to +85C supports industrial-grade deployment.
When designing with this DSC, allocate PCB copper area beneath the exposed pad to keep junction temperature within the SMPS derating curve. The analog and digital sections should be routed on separate ground islands joined at a single point to prevent PWM switching noise from corrupting ADC readings.
This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet. Pricing references are stated as of 2026-09-26 to reflect current market availability and lead times.
Bộ thay thế dễ dàng lắp đặt cho DSPIC33FJ16GS504T-50I/ML — 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 DSPIC33FJ16GS504T-50I/ML (cùng hình factor và footprint) — khác nhau ở Package, Core Architecture, Operating Temperature, RoHS Status, ADC.
DSPIC33FJ16GS504-50I/ML
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →DSPIC33FJ16GS504-E/ML
✅ Drop-In ⚠️ Thông số chưa được xác minhLiên hệ để biết giá
Xem tài liệu →DSPIC33FJ16GS504T-I/ML
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
DSPIC33FJ16GS504-50I/PT
✅ Drop-In ⚠️ Thông số chưa được xác minhLiên hệ để biết giá
Xem tài liệu →DSPIC33FJ16GS504-H/PT
✅ Drop-In ⚠️ Thông số chưa được xác minhLiên hệ để biết giá
Xem tài liệu →DSPIC33FJ16GS504T-50I/TL
✅ Drop-In ⚠️ Thông số chưa được xác minhLiên hệ để biết giá
Xem tài liệu →DSPIC33FJ16GS504T-50I/ML Tỷ lệ tối đa & tính chất điện
| Product Type | Digital Signal Controller (DSC) |
| Core | dsPIC33F (16-bit DSC with DSP engine) |
| CPU Speed | 50 MIPS |
| Program Memory (Flash) | 16 KB (16K x 8) |
| RAM | 2 KB |
| Hộp | 44-pin QFN (8x8 mm) with Exposed Pad |
| Operating Voltage (VDD) | 3.0 V to 3.6 V |
| Nhiệt độ hoạt động | -40C to +85C (Industrial) |
| PWM Resolution | Up to 1.04 ns duty-cycle resolution |
| ADC Resolution | 10-bit |
| ADC Sampling Rate | Up to 4 MSPS (aggregate, depending on channel config) |
| Analog Comparators | 4 |
| Kiểu lắp đặt | Surface Mount |
| Cấp MSL | 3 (168 hours) |
| Trạng thái RoHS | Compliant |
| Lead-Free | Yes |
| AEC-Q100 Qualified | Not Qualified (Industrial grade only) |
Cấu hình chân DSPIC33FJ16GS504T-50I/ML
| Chân 1 | RP5/RESET — Remappable I/O / device reset input (active-low) |
| Chân 2 | VSS — Digital ground reference |
| Chân 3 | OSC1/CLKI — Crystal oscillator input or external clock |
| Chân 4 | OSC2/CLKO — Crystal oscillator output |
| Chân 5 | VDD — Core logic supply (3.0V to 3.6V) |
| Chân 6 | PWM1H — PWM channel 1 high-side output |
| Chân 7 | PWM1L — PWM channel 1 low-side output |
| Chân 8 | PWM2H — PWM channel 2 high-side output |
| Chân 9 | PWM2L — PWM channel 2 low-side output |
| Chân 10 | PWM3H — PWM channel 3 high-side output |
| Chân 11 | PWM3L — PWM channel 3 low-side output |
| Chân 12 | VSS — Digital ground reference |
| Chân 13 | VDD — Core logic supply (3.0V to 3.6V) |
| Chân 14 | AN0/CMP1A — Analog input 0 / Comparator 1 input A |
| Chân 15 | AN1/CMP1B — Analog input 1 / Comparator 1 input B |
| Chân 16 | AN2/CMP2A — Analog input 2 / Comparator 2 input A |
| Chân 17 | AN3/CMP2B — Analog input 3 / Comparator 2 input B |
| Chân 18 | AVDD — Analog supply voltage (3.0V to 3.6V) |
| Chân 19 | AVSS — Analog ground reference |
| Chân 20 | AN4/CMP3A — Analog input 4 / Comparator 3 input A |
| Chân 21 | AN5/CMP3B — Analog input 5 / Comparator 3 input B |
| Chân 22 | AN6/CMP4A — Analog input 6 / Comparator 4 input A |
| Chân 23 | AN7/CMP4B — Analog input 7 / Comparator 4 input B |
| Chân 24 | VDD — Core logic supply (3.0V to 3.6V) |
| Chân 25 | VSS — Digital ground reference |
| Chân 26 | PGED1/AN8 — ICSP programming data / Analog input 8 |
| Chân 27 | PGEC1/AN9 — ICSP programming clock / Analog input 9 |
| Chân 28 | FLTA1/RP6 — PWM fault input A / Remappable I/O |
| Chân 29 | FLTA2/RP7 — PWM fault input B / Remappable I/O |
| Chân 30 | RP8 — Remappable I/O |
| Chân 31 | RP9 — Remappable I/O |
| Chân 32 | RP10 — Remappable I/O |
| Chân 33 | RP11 — Remappable I/O |
| Chân 34 | RP12 — Remappable I/O |
| Chân 35 | VSS — Digital ground reference |
| Chân 36 | VDD — Core logic supply (3.0V to 3.6V) |
| Chân 37 | RP13 — Remappable I/O |
| Chân 38 | RP14 — Remappable I/O |
| Chân 39 | RP15 — Remappable I/O |
| Chân 40 | RP0 — Remappable I/O |
| Chân 41 | RP1 — Remappable I/O |
| Chân 42 | RP2 — Remappable I/O |
| Chân 43 | RP3 — Remappable I/O |
| Chân 44 | RP4 — Remappable I/O |
| Chân 45 | EP — Exposed thermal pad (must be soldered to PCB ground) |
Ứng dụng tiêu biểu
DSPIC33FJ16GS504T-50I/ML phù hợp cho 6 Áp dụngs: AC-DC Power Factor Correction (PFC) Converters, Isolated DC-DC Converters (LLC, Phase-Shifted Full-Bridge), Uninterruptible Power Supplies (UPS) and Inverters, Digital LED Drivers and Architectural Lighting, Solar Micro-Inverters and MPPT Controllers, Industrial Motor Control and BLDC Drivers.
AC-DC Power Factor Correction (PFC) Converters
The DSPIC33FJ16GS504T-50I/ML is purpose-built for CCM/DCM Power Factor Correction in AC-DC converters. Its 50 MIPS DSP engine executes sinusoidal reference multiplication and average-current-mode compensation within sub-100 microsecond control periods, while the 4 MSPS 10-bit ADC captures instantaneous inductor current and rectified line voltage with minimal phase delay. The dedicated high-resolution PWM (1.04 ns duty cycle) drives the boost switch at 100 kHz to 300 kHz with negligible quantisation noise, and the four on-chip analog comparators handle cycle-by-cycle peak current limiting without ADC latency. Designers place the IC between the rectifier bridge and bulk capacitor, with the analog and digital ground planes split and joined at the exposed pad to keep switching noise out of the current-sense path.
Được đề xuất
Isolated DC-DC Converters (LLC, Phase-Shifted Full-Bridge)
The DSPIC33FJ16GS504T-50I/ML controls isolated DC-DC topologies such as LLC resonant converters and phase-shifted full-bridge converters used in telecom and server power supplies. The 50 MIPS throughput supports primary-side digital current-mode control plus secondary-side synchronous rectification timing within a single IC, replacing analog UCC25640-style controllers with adaptive burst-mode and adaptive dead-time. Its dual-edge PWM trigger routing allows the four analog comparators to force PWM shutdown in a single cycle during over-current events, satisfying the fast-fault response that LLC tank networks demand. The 44-QFN 8x8 footprint occupies less than 9 mm of board edge, ideal for 1U server PSU daughter cards where the controller must fit beside the magnetics.
Được đề xuất
Uninterruptible Power Supplies (UPS) and Inverters
For line-interactive and online UPS systems, the DSPIC33FJ16GS504T-50I/ML performs inverter sine-wave synthesis, battery management, and grid-synchronisation in a single device. Its 16 KB Flash accommodates full-state sine-PWM lookup tables and RMS-calculation libraries, while the 50 MIPS core sustains 16 kHz PWM updates for 50/60 Hz line frequency without audible artefacts. The 10-bit ADC samples the battery voltage, output voltage, and grid voltage through dedicated channels, and the four analog comparators execute fast transfer-switch control between grid and inverter within one switching cycle. Designers leverage the dsPIC DSP library for sine-PWM, RMS, and PLL blocks to ship production-ready UPS firmware in 4-6 weeks.
Được đề xuất
Digital LED Drivers and Architectural Lighting
In high-brightness LED drivers and architectural lighting controllers, the DSPIC33FJ16GS504T-50I/ML implements constant-current regulation, dimming, and color-mixing algorithms. The high-resolution PWM outputs drive multi-channel LED strings with 16-bit dimming depth at 1 kHz refresh rates, while the 10-bit ADC monitors each string current and temperature. The 50 MIPS DSP core executes CIE 1931 colour-mixing math and thermal-foldback compensation in real time. Designers route the analog ground island separately from the high-current LED return path, joined at the QFN exposed pad, to keep ADC current sensing immune to switching transients.
Được đề xuất
Solar Micro-Inverters and MPPT Controllers
The DSPIC33FJ16GS504T-50I/ML implements Maximum Power Point Tracking (MPPT) and grid-tie inverter control for sub-500 W solar micro-inverters. Its 50 MIPS core runs perturb-and-observe or incremental-conductance MPPT algorithms at 10-100 Hz, while the dedicated PWM drives the high-frequency primary switch of a flyback or LLC stage. The 10-bit ADC samples PV panel voltage and current simultaneously for instantaneous power calculation, and the analog comparators enforce anti-islanding protection by detecting grid voltage loss within one line cycle. With 16 KB Flash, designers implement both MPPT and grid-synchronisation in firmware without external logic.
Được đề xuất
Industrial Motor Control and BLDC Drivers
The DSPIC33FJ16GS504T-50I/ML supports sensorless and sensored BLDC/PMSM motor control in industrial automation equipment. Its 1.04 ns PWM resolution drives the three-phase inverter at 20-50 kHz with minimal torque ripple, while the 4 MSPS ADC samples phase currents via inline shunt resistors for field-oriented control (FOC). The DSP ALU executes Clarke/Park transforms and space-vector PWM within microseconds, sustaining 10 kHz control loops for smooth torque and speed response. The industrial -40C to +85C temperature grade ensures reliable operation in factory-floor enclosures.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho DSPIC33FJ16GS504T-50I/ML — 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 | DSPIC33FJ16GS504-50I/ML | DSPIC33FJ16GS504-E/ML | DSPIC33FJ16GS504T-I/ML | DSPIC33FJ16GS504-50I/PT | DSPIC33FJ16GS504-H/PT | DSPIC33FJ16GS504T-50I/TL |
|---|---|---|---|---|---|---|---|
| Package | 44-QFN (8x8) | 44-QFN (8x8) - same | 44-QFN (8x8) - same | 44-QFN (8x8) - same | 44-TQFP (10x10) | 44-TQFP (10x10) | 44-TQFP (10x10) |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Core Speed (MIPS) | 50 MIPS | 50 MIPS | 50 MIPS | 40 MIPS | 50 MIPS | 50 MIPS | 50 MIPS |
| Flash Memory | 16 KB | 16 KB | 16 KB | 16 KB | 16 KB | 16 KB | 16 KB |
| RAM | 2 KB | 2 KB | 2 KB | 2 KB | 2 KB | 2 KB | 2 KB |
| Operating Temperature | -40C to +85C (Industrial) | -40C to +85C | -40C to +125C (Extended) | -40C to +85C | -40C to +85C | -40C to +150C (High-temp) | -40C to +85C |
| Packaging Format | Tape & Reel | Tray | Tray | Tape & Reel | Tray | Tray | Tape & Reel |
| PWM Resolution | 1.04 ns duty-cycle | 1.04 ns | 1.04 ns | 1.04 ns | 1.04 ns | 1.04 ns | 1.04 ns |
Bảo phân biệt quan trọng
- Highest throughput at 50 MIPS in the GS504 family (vsDSPIC33FJ16GS504T-I/ML)
- Production-ready tape-and-reel format (vsDSPIC33FJ16GS504-50I/ML)
- SMPS-optimized peripherals not found on general-purpose PIC24 MCUs (vsDSPIC33FJ16GS502-I/SP)
Ghi chú thiết kế
The 44-QFN (8x8) package has an exposed thermal pad (pin 45) that MUST be soldered to the PCB ground plane. Provide at least 8 thermal vias in a 3x3 grid under the pad to a second internal ground plane for heat spreading. Without proper pad soldering, junction temperature can rise 20-30C above rated, especially in fan-less enclosed SMPS designs where ambient is already 60-70C.
Separate analog (AVDD/AVSS) and digital (VDD/VSS) ground regions on a 4-layer PCB, joining them only at the QFN exposed pad (single-point star ground). The high-current switching return path (PWM-driven FET bridge) must NOT pass through the analog ground island; route it directly to the bulk capacitor ground. This prevents PWM dV/dt transients from corrupting ADC samples by 5-10 LSB.
Do not omit the decoupling capacitors: place 100 nF X7R ceramic on each VDD pin within 2 mm, plus a bulk 10 uF tantalum or ceramic on AVDD. The dsPIC33F GS family datasheet mandates that VDD rise time be less than 300 ms for proper POR; if your upstream regulator ramps slower, add an RC network on RESET to guarantee monotonic startup. Failing to do so can brick the part into an indeterminate state requiring power-cycle.
The dsPIC33FJ16GS504T-50I/ML core draws approximately 60 mA at 50 MIPS with all peripherals enabled; budget for 100 mA worst-case when sizing the 3.3V LDO upstream. Enable unused PWM channels in software (PTEN bits) rather than leaving them floating to reduce quiescent current by 5-8 mA total, important for battery-backed solar micro-inverter designs.
Thông tin tuân thủ
RoHS compliant per Microchip product page. Industrial temperature grade (-40C to +85C). Not AEC-Q100 qualified; for automotive applications use AEC-Q100-qualified dsPIC33F variants.