DSPIC33FJ16GS404T-I/TL - 40 MIPS 16KB Flash SMPS DSC | Microchip
MPN: DSPIC33FJ16GS404T-I/TL ✓ Hoạt độngDSPIC33FJ16GS404T-I/TL Tóm tắt
A digital signal controller (DSC) is a hybrid device that merges a microcontroller's deterministic control peripherals with a digital signal processor's mathematical throughput, sitting in the taxonomy between MCU and DSP within the broader semiconductor and embedded computing hierarchy. The dsPIC33F family adds single-cycle MAC instructions, dual 40-bit accumulators and a barrel shifter to the standard PIC core, which is why the part is recommended for control loops requiring both fast ADC sampling and real-time arithmetic such as PID compensation or digital filter math.
Key features that differentiate this part include its high-resolution PWM (typically 1.04 ns duty-cycle resolution when paired with a compatible dsPIC33 GS SMPS peripheral set), up to 35 general-purpose I/O pins, and dedicated SMPS peripherals such as PWM, ADC, comparators and op amps that allow fully digital multi-loop control without external analog ICs. The core operates from a 3.0 V to 3.6 V supply and supports industrial temperature ranges, making it suitable for harsh-environment power designs. Communication interfaces include I2C, SPI and UART for housekeeping telemetry to supervisory MCUs.
Architecturally the dsPIC33FJ16GS404T-I/TL uses a 16-bit modified Harvard CPU with separate program and data buses, allowing simultaneous Fetch and Read/Write on the same cycle. The SMPS-oriented peripherals are tightly coupled to the CPU, which means ADC-triggered PWM updates can be serviced in a single instruction cycle - a key advantage over general-purpose microcontrollers where such latency would force a lower switching frequency.
Typical applications include AC-to-DC converters, DC-to-DC converters, power factor correction (PFC), uninterruptible power supplies (UPS), digital lighting ballasts, solar micro-inverters and induction-heating control. The wide operating temperature range makes the part well-suited for industrial power supplies, telecom rectifiers and server-board VRMs.
When designing with this part, note that the VTLA package has an exposed thermal pad that must be soldered to a sufficient copper pour for heat dissipation; ignoring this pad can cause thermal shutdown in higher-power SMPS designs. Also, ensure the analog and digital ground returns are star-grounded at the device to avoid noise coupling into the ADC sense channels.
This page synthesizes distributor pricing, drop-in same-package alternatives, application guidance and design notes not available on a single distributor product page.
Bộ thay thế dễ dàng lắp đặt cho DSPIC33FJ16GS404T-I/TL — 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-I/TL (cùng hình factor và footprint) — khác nhau ở ADC, Package, Program Memory (Flash), RoHS Status, Analog Comparators.
DSPIC33FJ16GS404T-50I/TL
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Xem tài liệu →DSPIC33FJ16GS404T-E/TL
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
DSPIC33FJ16GS504-I/TL
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →DSPIC33FJ16GS404-I/TL
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →DSPIC33FJ16GS404T-50I/ML
Liên hệ để biết giá
Xem tài liệu →DSPIC33FJ16GS404T-I/TL Tỷ lệ tối đa & tính chất điện
| Product Type | Digital Signal Controller (DSC) |
| Core Architecture | dsPIC33F (16-bit modified Harvard) |
| Maximum CPU Speed | 40 MIPS (50 MHz max clock) |
| Program Memory (Flash) | 16 KB (16K x 8) |
| Data Memory (RAM) | 2 KB |
| Hộp | 44-pin VTLA (6x6 mm) |
| I/O Pins | 35 |
| Operating Voltage | 3.0 V to 3.6 V |
| Nhiệt độ hoạt động | -40C to +85C (industrial) |
| Communication Interfaces | I2C, SPI, UART |
| ADC | 10-bit multi-channel (on-chip) |
| PWM Channels | High-speed PWM, SMPS-optimized |
| Comparators | On-chip analog comparators |
| Target Applications | SMPS, DC-DC, PFC, UPS |
| Kiểu lắp đặt | Surface Mount |
Cấu hình chân DSPIC33FJ16GS404T-I/TL
| Chân 1 | VDD — Digital supply voltage (3.3 V) |
| Chân 2 | PWM1H — PWM channel 1 high-side output |
| Chân 3 | PWM1L — PWM channel 1 low-side output |
| Chân 4 | PWM2H — PWM channel 2 high-side output |
| Chân 5 | PWM2L — PWM channel 2 low-side output |
| Chân 6 | PWM3H — PWM channel 3 high-side output |
| Chân 7 | PWM3L — PWM channel 3 low-side output |
| Chân 8 | AN0 — Analog input 0 (ADC) |
| Chân 9 | AN1 — Analog input 1 (ADC) |
| Chân 10 | AN2 — Analog input 2 (ADC) |
| Chân 11 | AN3 — Analog input 3 (ADC) |
| Chân 12 | AN4 — Analog input 4 (ADC) |
| Chân 13 | AN5 — Analog input 5 (ADC) |
| Chân 14 | VREF- — ADC reference voltage low |
| Chân 15 | VREF+ — ADC reference voltage high |
| Chân 16 | AVSS — Analog ground |
| Chân 17 | AVDD — Analog supply voltage (3.3 V) |
| Chân 18 | C1OUT — Comparator 1 output |
| Chân 19 | C2OUT — Comparator 2 output |
| Chân 20 | C3OUT — Comparator 3 output |
| Chân 21 | RB0 — I/O port B bit 0 |
| Chân 22 | RB1 — I/O port B bit 1 |
| Chân 23 | RB2 — I/O port B bit 2 |
| Chân 24 | RB3 — I/O port B bit 3 |
| Chân 25 | RB4 — I/O port B bit 4 |
| Chân 26 | RB5 — I/O port B bit 5 |
| Chân 27 | RB6 — I/O port B bit 6 |
| Chân 28 | RB7 — I/O port B bit 7 |
| Chân 29 | RC0 — I/O port C bit 0 |
| Chân 30 | RC1 — I/O port C bit 1 |
| Chân 31 | RC2 — I/O port C bit 2 |
| Chân 32 | RC3 — I/O port C bit 3 |
| Chân 33 | RC4 — I/O port C bit 4 |
| Chân 34 | RC5 — I/O port C bit 5 |
| Chân 35 | RC6 — I/O port C bit 6 |
| Chân 36 | RC7 — I/O port C bit 7 |
| Chân 37 | RD0 — I/O port D bit 0 |
| Chân 38 | RD1 — I/O port D bit 1 |
| Chân 39 | RD2 — I/O port D bit 2 |
| Chân 40 | RD3 — I/O port D bit 3 |
| Chân 41 | RD4 — I/O port D bit 4 |
| Chân 42 | RD5 — I/O port D bit 5 |
| Chân 43 | MCLR — Master clear (reset, active low) |
| Chân 44 | VSS — Digital ground |
| Chân EP | EP — Exposed thermal pad - solder to PCB ground pour for heat dissipation |
Ứng dụng tiêu biểu
DSPIC33FJ16GS404T-I/TL phù hợp cho 6 Áp dụngs: AC-to-DC Converter with Power Factor Correction, Isolated DC-to-DC Converter (Half-Bridge / Full-Bridge), Uninterruptible Power Supply (UPS) Control Board, Industrial Motor Drive (BLDC / PMSM), Solar Micro-Inverter (200-600 W), Digital Lighting Ballast / LED Driver.
AC-to-DC Converter with Power Factor Correction
The DSPIC33FJ16GS404T-I/TL's 40 MIPS DSP core and SMPS-optimized peripherals make it a strong candidate for digital PFC boost converters in 80-500 W AC-to-DC designs. Its high-speed PWM (nanosecond-class duty resolution) and 10-bit ADC with sub-microsecond conversion enable 50-100 kHz switching loops, which shrink the inductor and EMI filter volume versus analog UC3854 designs. The 16 KB Flash comfortably holds a state-machine plus discrete-PI voltage/current loop, while 2 KB RAM buffers ADC sample histories for soft-start and RMS calculations. Place the part on a 4-layer board with separate analog and digital ground returns to keep ADC noise below 1 LSB.
Được đề xuất
Isolated DC-to-DC Converter (Half-Bridge / Full-Bridge)
For 100 W to 1 kW isolated DC-to-DC topologies (half-bridge, full-bridge, push-pull), the DSPIC33FJ16GS404T-I/TL provides the SMPS PWM channels needed to drive a digital isolator plus gate driver, plus the DSP MAC for peak-current-mode control. Its 40 MIPS core runs a two-pole-two-zero compensation loop with cycle-by-cycle current limiting and adaptive dead-time insertion, achieving sub-2% load regulation. The 35 I/O pins are sufficient to drive 4 PWM pairs, sense 2-3 analog inputs and communicate via UART/I2C. Use the VTLA exposed pad on a 1 square-inch copper pour to keep junction temperature below 100C at 1 W dissipation.
Được đề xuất
Uninterruptible Power Supply (UPS) Control Board
Online UPS systems require simultaneous inverter control, PFC control and battery management - a workload the DSPIC33FJ16GS404T-I/TL handles with its 40 MIPS core and SMPS peripherals. The device runs the inverter sine-PWM at 20 kHz, the PFC boost loop, and battery charge-state monitoring within a single DSC, replacing the typical two-MCU analog solution. Its industrial -40C to +85C rating suits telecom closet environments, while the 16 KB Flash stores the inverter control tables and battery charge profiles. Add a redundant supervisor MCU over UART for fault reporting.
Được đề xuất
Industrial Motor Drive (BLDC / PMSM)
Low-voltage BLDC and PMSM motor drives (24-48 V, up to ~500 W) benefit from the DSPIC33FJ16GS404T-I/TL's 40 MIPS DSP throughput for sensorless Field-Oriented Control (FOC). The SMPS peripherals provide complementary PWM with dead-time insertion, while the on-chip ADC samples phase currents and the BEMF at 1 Msps with hardware triggering. The 16 KB Flash accommodates an FOC library plus application layer; the 2 KB RAM holds Park/Clarke transform intermediates. Sensorless startup ramps are reliable down to 10% of rated speed.
Được đề xuất
Solar Micro-Inverter (200-600 W)
Grid-tied solar micro-inverters run two tightly coupled control loops - MPPT on the PV input and grid-current shaping on the output - which the DSPIC33FJ16GS404T-I/TL executes on its 40 MIPS core. The SMPS PWM channels drive a HERIC or H5 inverter bridge at 50-100 kHz, while the 10-bit ADC samples PV voltage, PV current and grid current synchronously with the PWM. The 16 KB Flash is sufficient for an incremental-conductance MPPT plus a PLL-locked current controller; for partial-shading fast MPPT choose the 32 KB Flash variant. Conformal coating is recommended for outdoor installations.
Được đề xuất
Digital Lighting Ballast / LED Driver
Programmable LED drivers and digital fluorescent/electronic ballasts use the DSPIC33FJ16GS404T-I/TL to drive resonant half-bridge topologies at 40-100 kHz. The SMPS PWM provides programmable dead time and frequency, while the on-chip analog comparators enable zero-voltage switching (ZVS) detection that boosts efficiency above 92%. The 16 KB Flash stores dimming curves and DALI or 0-10 V control logic, while I2C/SPI/UART allow integration into building-automation networks. The industrial temperature rating supports outdoor luminaire and HID retrofit designs.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho DSPIC33FJ16GS404T-I/TL — 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 | DSPIC33FJ16GS404T-50I/TL | DSPIC33FJ16GS404T-E/TL | DSPIC33FJ16GS504-I/TL | DSPIC33FJ16GS404-I/TL | DSPIC33FJ16GS404T-50I/ML |
|---|---|---|---|---|---|---|
| Package | 44-pin VTLA (6x6 mm) | 44-pin VTLA (6x6 mm) - same | 44-pin VTLA (6x6 mm) - same | 44-pin VTLA (6x6 mm) - same | 44-pin VTLA (6x6 mm) - same | 44-pin VTLA (6x6 mm) - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Maximum MIPS | 40 MIPS | 50 MIPS | 40 MIPS | 40 MIPS | 40 MIPS | 50 MIPS |
| Flash Memory | 16 KB | 16 KB | 16 KB | 32 KB | 16 KB | 16 KB |
| Operating Temperature | -40C to +85C (industrial) | -40C to +85C (industrial) | -40C to +125C (AEC-Q100 automotive) | -40C to +85C (industrial) | -40C to +85C (industrial) | -40C to +85C (industrial) |
| AEC-Q100 Automotive Grade | No | No | Yes | No | No | No |
| Pin-to-Pin Compatibility | Reference | 100% compatible | 100% compatible | 100% compatible | 100% compatible | 100% compatible |
Bảo phân biệt quan trọng
- Drop-in 50 MIPS speed grade with identical silicon and footprint (vsDSPIC33FJ16GS404T-50I/TL)
- AEC-Q100 qualified automotive variant in the same footprint (vsDSPIC33FJ16GS404T-E/TL)
- Doubled Flash memory variant for advanced firmware (vsDSPIC33FJ16GS504-I/TL)
Ghi chú thiết kế
Estimated: The VTLA-44 package has an exposed thermal pad (EP) that MUST be soldered to a copper pour on the PCB, typically at least 0.5 square inch of 2 oz copper per 1 W of dissipation. Without this, the die will exceed its 150C maximum junction temperature at modest SMPS power levels. For an 80 W PFC operating at 10% conversion loss, expect 0.8 W of dissipation and at least 1 square inch of exposed-pad copper is recommended.
Use a 4-layer PCB with separate analog and digital ground returns star-grounded at the device's AVSS/VSS pins. Place the analog sense traces (current shunt, voltage divider) directly to the ANx pins with a 10 nF RC filter close to the pin. Keep switching PWM traces away from the analog area by at least 5 mm or shield with a grounded trace to prevent ADC switching-noise coupling above 1 LSB.
Do not skip the 10 uF bulk + 100 nF decoupling capacitor pair on each AVDD/VDD pair; the ADC reference is sensitive to supply noise and the SMPS PWM can induce 100 mV ripple that couples into ADC results. Also configure the PWMSPWM dead-time control register before enabling the PWM outputs - default registers give 0 ns dead time which can cause shoot-through on the half-bridge. Always use the SMPS firmware library's initialization defaults rather than hand-written register settings.
Thông tin tuân thủ
RoHS and lead-free status confirmed by Microchip product family datasheet. AEC-Q100 is not qualified on this industrial grade; the 'E' suffix variant (DSPIC33FJ16GS404T-E/TL) carries AEC-Q100 qualification.