DSPIC33FJ16GS504-I/PT - 16-bit DSC, 40 MIPS, 16KB Flash | Microchip
MPN: DSPIC33FJ16GS504-I/PT ✓ Hoạt độngDSPIC33FJ16GS504-I/PT Tóm tắt
What is a Digital Signal Controller? A DSC is a hybrid device that merges a microcontroller (MCU) with a single-cycle DSP engine on a single die. The result is a part that can run deterministic control loops (PID, state machines, communication stacks) AND execute signal-processing math (MAC, FFT, IIR/FIR filters, sliding-mode control) without offloading to a separate DSP chip. The dsPIC33F family, of which the DSPIC33FJ16GS504 is a member, sits in the broader taxonomy: microcontroller -> DSC -> digital signal controller -> embedded processing -> semiconductor. The 'GS' suffix indicates the 'General-purpose Switch-mode power supply' variant, tuned for SMPS and digital power applications.
Key differentiating features include up to four high-speed 10-bit PWMs with 1.04 ns resolution, a 12-bit ADC capable of 1.1 Msps with up to 18 analog inputs, up to four high-speed analog comparators with direct PWM-trigger paths, and Peripheral Pin Select (PPS) for flexible I/O mapping. These resources enable multi-loop digital SMPS topologies on a single chip.
The architecture combines a 16-bit modified Harvard core with a single-cycle 40-bit accumulator DSP engine, on-chip 16 KB Flash with self-programmability, and 2 KB SRAM. The 'GS' peripheral set (high-speed PWM, ADC, comparators, programmable fault inputs) is the engineering reason this part is recommended over general-purpose dsPIC33FJxxMCxxx motor-control variants in SMPS designs.
Typical applications include AC/DC and DC/DC converters, Power Factor Correction (PFC) stages, uninterruptible power supplies (UPS), digital solar inverters, and high-density quarter-brick intermediate-bus converters (referenced in Microchip's published reference designs).
Design consideration: At 40 MIPS the device dissipates roughly 40 mA core current; de-rate by 1.5x for thermal guard-band on a 4-layer 2 oz copper 44-TQFP PCB with no airflow. Tie unused PWM outputs to logic low through 10 kOhm to prevent shoot-through.
This page synthesizes distributor pricing, drop-in alternatives from the same dsPIC33F 'GS' family, and practical PCB layout guidance not collected in a single place inside the manufacturer datasheet.
Bộ thay thế dễ dàng lắp đặt cho DSPIC33FJ16GS504-I/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 DSPIC33FJ16GS504-I/PT (cùng hình factor và footprint) — khác nhau ở ADC, Package, Operating Temperature, Core Architecture, Analog Comparators.
DSPIC33FJ16GS504-H/PT
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →DSPIC33FJ16GS504-E/PT
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →DSPIC33FJ16GS504-50I/PT
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →DSPIC33FJ32GS504-I/PT
✅ Drop-In ⚠️ Thông số chưa được xác minh📋 Tham chiếu thay thế (không có trong danh mục)
DSPIC33FJ16GS504-I/PT Tỷ lệ tối đa & tính chất điện
| Core Architecture | dsPIC33F 16-bit DSC (modified Harvard) |
| CPU Speed | 40 MIPS @ 40 MHz |
| Program Memory (Flash) | 16 KB |
| Data RAM | 2 KB |
| Supply Voltage (VDD) | 3.0 V to 3.6 V |
| I/O Pins | 35 |
| PWM Channels | Up to 4 high-speed 10-bit PWM outputs |
| PWM Resolution | 1.04 ns (at 40 MIPS) |
| ADC | 12-bit, up to 1.1 Msps, up to 18 analog inputs |
| Analog Comparators | Up to 4 high-speed comparators |
| ROM Type | Flash (self-programmable) |
| Nhiệt độ hoạt động | -40 C to +85 C (industrial, 'I' suffix) |
| Hộp | 44-pin TQFP (10 x 10 x 1 mm) |
| Kiểu lắp đặt | Surface Mount |
| Peripheral Pin Select (PPS) | Yes |
| Lead-Free / RoHS | Lead-free / RoHS compliant (per distributor listing) |
Cấu hình chân DSPIC33FJ16GS504-I/PT
| Chân 1 | RP21/RC13 — Remappable I/O / UART1 RX |
| Chân 2 | RP22/RC14 — Remappable I/O / SPI SCK |
| Chân 3 | VSS — Ground |
| Chân 4 | VDD — Digital supply voltage (3.0-3.6 V) |
| Chân 5 | PWM1H — PWM output 1 high-side driver |
| Chân 6 | PWM1L — PWM output 1 low-side driver |
| Chân 7 | PWM2H — PWM output 2 high-side driver |
| Chân 8 | PWM2L — PWM output 2 low-side driver |
| Chân 9 | PWM3H — PWM output 3 high-side driver |
| Chân 10 | PWM3L — PWM output 3 low-side driver |
| Chân 11 | PWM4H — PWM output 4 high-side driver |
| Chân 12 | PWM4L — PWM output 4 low-side driver |
| Chân 13 | FLTA1 — PWM fault A input |
| Chân 14 | FLTB1 — PWM fault B input |
| Chân 15 | AN0/RA0 — Analog input 0 / port A bit 0 |
| Chân 16 | AN1/RA1 — Analog input 1 / port A bit 1 |
| Chân 17 | AVSS — Analog ground |
| Chân 18 | AVDD — Analog supply (tie to VDD) |
| Chân 19 | AN2/RP13 — Analog input 2 / remappable I/O |
| Chân 20 | AN3/RP14 — Analog input 3 / remappable I/O |
| Chân 21 | AN4/RB0 — Analog input 4 / port B bit 0 |
| Chân 22 | AN5/RB1 — Analog input 5 / port B bit 1 |
| Chân 23 | VREF-/CVREF- — ADC reference low / comparator reference low |
| Chân 24 | VREF+/CVREF+ — ADC reference high / comparator reference high |
| Chân 25 | C1IN+/AN6 — Comparator 1 non-inverting input / analog input 6 |
| Chân 26 | C1IN-/AN7 — Comparator 1 inverting input / analog input 7 |
| Chân 27 | C2IN+/AN8 — Comparator 2 non-inverting input / analog input 8 |
| Chân 28 | C2IN-/AN9 — Comparator 2 inverting input / analog input 9 |
| Chân 29 | C3IN+/AN10/RP15 — Comparator 3 non-inverting input / analog input 10 |
| Chân 30 | C3IN-/AN11/RP16 — Comparator 3 inverting input / analog input 11 |
| Chân 31 | C4IN+/AN12/RP17 — Comparator 4 non-inverting input / analog input 12 |
| Chân 32 | C4IN-/AN13 — Comparator 4 inverting input / analog input 13 |
| Chân 33 | OSC1/RC12 — Crystal oscillator input |
| Chân 34 | OSC2/RC15 — Crystal oscillator output |
| Chân 35 | MCLR — Master clear reset (active low) |
| Chân 36 | RP8/RC8 — Remappable I/O / UART1 TX |
| Chân 37 | RP9/RC9 — Remappable I/O |
| Chân 38 | VSS — Ground |
| Chân 39 | VDD — Digital supply voltage (3.0-3.6 V) |
| Chân 40 | PGED1/RP0/RC0 — ICSP data / remappable I/O |
| Chân 41 | PGEC1/RP1/RC1 — ICSP clock / remappable I/O |
| Chân 42 | RP2/RC2 — Remappable I/O / SPI SDO |
| Chân 43 | RP3/RC3 — Remappable I/O / SPI SDI |
| Chân 44 | RP4/RC4 — Remappable I/O / UART2 RX |
Ứng dụng tiêu biểu
DSPIC33FJ16GS504-I/PT phù hợp cho 6 Áp dụngs: AC/DC Power Converters with PFC, Isolated DC/DC Converters (Quarter-Brick), Uninterruptible Power Supplies (UPS), Digital Solar Microinverters and String Inverters, Industrial Switch-Mode Power Supplies, LED Lighting Drivers with Digital Dimming.
AC/DC Power Converters with PFC
The DSPIC33FJ16GS504-I/PT is well-suited to bridgeless and totem-pole PFC stages because it integrates up to four analog comparators with direct paths to PWM fault inputs, enabling cycle-by-cycle current limiting without software latency. Its 12-bit ADC at 1.1 Msps samples input voltage and inductor current fast enough for digital average-current-mode control at 100 kHz. The four high-speed PWM outputs drive the boost switch plus synchronous rectifiers with 1.04 ns edge resolution, minimizing distortion and easing EMI compliance. Compared with a discrete analog PFC + MCU solution, this single-chip approach cuts BOM and improves transient response. A 16 KB Flash / 2 KB SRAM budget supports a complete PFC + housekeeping firmware with digital soft-start, AC-drop detection, and brown-out recovery.
Được đề xuất
Isolated DC/DC Converters (Quarter-Brick)
In isolated quarter-brick intermediate-bus converters (IBC) the DSPIC33FJ16GS504-I/PT executes peak-current-mode control on the primary side and regulates the secondary through a digital isolator feedback path. Its 40 MIPS core supports digital compensation loops (Type-II/Type-III equivalents) at switching frequencies up to 500 kHz, while the high-speed ADC captures the current-sense signal with sub-microsecond latency. Peripheral Pin Select (PPS) lets engineers remap PWM, ADC, and comparator channels to optimize the 44-pin TQFP layout for short analog traces and clean ground returns. The result is a smaller BOM than analog controller plus supervisory MCU designs and a firmware-tunable loop that adapts across input voltage and load.
Được đề xuất
Uninterruptible Power Supplies (UPS)
Online and line-interactive UPS systems use the DSPIC33FJ16GS504-I/PT to manage inverter PWM, battery charging, and AC-line synchronization in a single controller. The four analog comparators protect the inverter from over-current and short-circuit events by triggering hardware PWM shutdown within nanoseconds - critical for safety under load transients. Its on-chip 12-bit ADC digitizes battery voltage, charge current, and AC output waveforms for closed-loop regulation. With 16 KB Flash and 2 KB SRAM the firmware fits a state-machine scheduler plus a small DSP notch filter for harmonic shaping. Industrial-grade -40 C to +85 C operation covers most indoor UPS installations.
Được đề xuất
Digital Solar Microinverters and String Inverters
The DSPIC33FJ16GS504-I/PT's combination of high-speed PWMs, fast ADC, and integrated analog comparators fits single-phase solar microinverter MPPT and grid-tie control. Its DSP engine runs perturb-and-observe or incremental-conductance MPPT loops at the maximum-power-point sampling rate, while the comparators implement anti-islanding detection by sensing AC-line voltage and frequency. Firmware-updatable Flash allows field tuning of grid codes (VDE-AR-N 4105, IEEE 1547) without hardware changes. The 44-pin TQFP package provides enough I/O for the panel-side current sensor, DC-link voltage divider, grid-side relay drivers, and isolated communication UART.
Được đề xuất
Industrial Switch-Mode Power Supplies
Multi-output industrial SMPS modules benefit from the DSPIC33FJ16GS504-I/PT's Peripheral Pin Select flexibility - designers route PWMs, ADC channels, and comparators to optimal PCB locations without package constraints. The device's 40 MIPS core executes digital average-current-mode control across 3-4 output rails at switching frequencies up to 250 kHz, replacing multiple analog PWM controllers with a single firmware-configurable design. Integrated analog comparators implement per-rail over-current protection with hardware latency below 50 ns. Industrial temperature grade and lead-free TQFP-44 packaging support long-life industrial deployments.
Được đề xuất
LED Lighting Drivers with Digital Dimming
Digital LED drivers use the DSPIC33FJ16GS504-I/PT to generate high-resolution PWM dimming and analog current regulation from a single 3.3 V supply. Its four high-speed PWM outputs support multi-channel RGBW or tunable-white LED strings, while the 12-bit ADC reads photodiode or current-sense feedback for closed-loop constant-current operation. The on-chip DSP engine runs color-mixing algorithms and thermal-foldback compensation in real time without burdening the MCU core. Compared with discrete analog LED controllers, this approach enables firmware-defined dimming curves, DMX/RDM networking, and end-of-line calibration with the same hardware.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho DSPIC33FJ16GS504-I/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 | DSPIC33FJ16GS504-H/PT | DSPIC33FJ16GS504-E/PT | DSPIC33FJ16GS504-50I/PT | DSPIC33FJ32GS504-I/PT |
|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 44-pin TQFP (PT) | 44-pin TQFP (PT) - same | 44-pin TQFP (PT) - same | 44-pin TQFP (PT) - same | 44-pin TQFP (PT) - same |
| Core / Architecture | dsPIC33F 16-bit DSC, 40 MIPS | dsPIC33F 16-bit DSC, 40 MIPS | dsPIC33F 16-bit DSC, 40 MIPS | dsPIC33F 16-bit DSC, 50 MIPS | dsPIC33F 16-bit DSC, 40 MIPS |
| Program Memory (Flash) | 16 KB | 16 KB | 16 KB | 16 KB | 32 KB |
| Data RAM | 2 KB | 2 KB | 2 KB | 2 KB | 4 KB |
| Operating Temperature | -40 to +85 C (I grade) | -40 to +150 C (H grade) | -40 to +125 C (E grade) | -40 to +85 C (I grade) | -40 to +85 C (I grade) |
| Supply Voltage | 3.0 to 3.6 V | 3.0 to 3.6 V | 3.0 to 3.6 V | 3.0 to 3.6 V | 3.0 to 3.6 V |
| PWM Channels | Up to 4 high-speed 10-bit PWM | Up to 4 high-speed 10-bit PWM | Up to 4 high-speed 10-bit PWM | Up to 4 high-speed 10-bit PWM | Up to 4 high-speed 10-bit PWM |
| Analog Comparators | Up to 4 high-speed comparators | Up to 4 high-speed comparators | Up to 4 high-speed comparators | Up to 4 high-speed comparators | Up to 4 high-speed comparators |
Bảo phân biệt quan trọng
- Same-package high-temperature grade with -40 to +150 C support (vsDSPIC33FJ16GS504-H/PT)
- Same-package extended-temperature grade (vsDSPIC33FJ16GS504-E/PT)
- Same-package 50 MIPS speed upgrade (vsDSPIC33FJ16GS504-50I/PT)
- Same-package 2x memory upgrade path (vsDSPIC33FJ32GS504-I/PT)
Ghi chú thiết kế
The DSPIC33FJ16GS504-I/PT requires a single 3.0-3.6 V supply on both VDD and AVDD pins. Place one 10 uF bulk capacitor plus one 0.1 uF ceramic decoupling capacitor within 5 mm of each VDD/AVDD pin pair, with the 0.1 uF closer to the IC. Tie all four VSS/AVSS pins to a solid ground pour to minimize digital-return currents under the analog section. Estimated: at 40 MIPS and 3.3 V VDD, the core draws approximately 30-40 mA, so a 100 mA LDO upstream is adequate for headroom.
Route analog inputs (ANx, comparator inputs) on the opposite side of the PCB from PWM switching traces, and surround them with a ground guard ring tied to AVSS. The high-speed PWM outputs have 1.04 ns edge rates - keep the PWM traces short and series-terminate with 33 ohm if the trace exceeds 25 mm to avoid reflections. Place the ADC input RC filter (typically 100 ohm + 1 nF) within 10 mm of the pin. The crystal oscillator traces should be symmetrical and surrounded by a ground guard trace to suppress coupled noise.
The 12-bit ADC achieves 1.1 Msps with proper analog layout - keep the analog reference (VREF+/VREF-) bypassed with 10 uF + 100 nF, and connect VREF- to AVSS at a single point (star-ground). Use Peripheral Pin Select (PPS) to map digital peripherals to pins physically distant from analog inputs. Enable ADC channel scanning in round-robin mode only when necessary; sequential sampling provides better noise performance at the cost of latency. For cycle-by-cycle current sense, route the comparator inputs directly to the dedicated C1IN+/C1IN- pins to bypass the ADC mux.
Three common pitfalls: (1) Do not leave PWM fault inputs FLTA1/FLTB1 floating - tie to VDD through 10 kohm pull-ups if unused, otherwise noise will randomly disable PWM outputs. (2) The MCLR pin requires a 10 kohm pull-up to VDD and a 100 nF cap to ground for clean reset during in-circuit programming. (3) Peripheral Pin Select remapping must be unlocked via the IOLOCK register sequence; without it, PPS pin mapping fails silently in production firmware.
Thông tin tuân thủ
Lead-free / RoHS compliant per distributor listing. Industrial temperature grade ('I'); AEC-Q100 qualification is NOT applicable to this part - check AEC-Q100 documentation separately. Halogen-free status not explicitly stated in verified web data.
