DSPIC33FJ16GS404-I/TL - 16-Bit DSC, 40 MIPS, 16KB Flash | Microchip
MPN: DSPIC33FJ16GS404-I/TL ✓ Hoạt độngDSPIC33FJ16GS404-I/TL Tóm tắt
The dsPIC33F family is a hybrid architecture combining a PIC16-bit MCU core with a DSP engine, providing deterministic real-time control plus high-throughput signal processing in a single chip. SMPS-optimized variants like the GS404 add high-resolution PWM modules and fast ADC converters, making them ideal for digital power conversion where conventional microcontrollers lack the necessary peripheral set or computational bandwidth to close multi-loop control loops at high switching frequencies.
Key features include an integrated 10-bit ADC with up to 6 Sample-and-Hold channels configurable for 1.1 Msps throughput, up to 4 PWM output channels with duty-cycle resolution up to 1.04 ns at 40 MIPS, and two analog comparators with reference DACs. The device also provides dedicated SMPS interfaces such as a Current Reset, PWM-Latch input, and a high-speed analog comparator for current-mode control. Communications peripherals cover UART, SPI, and I2C, while an integrated 16-bit timer/capture/compare set supports digital control loops.
The architecture uses a 5-stage pipeline modified Harvard bus with single-cycle hardware MAC (16x16 -> 32-bit) and a 40-bit accumulator, supporting fractional fixed-point math. This enables on-chip execution of digital control algorithms such as PID, state-space, and digital filtering for power conversion without burdening the CPU. The 16 KB Flash and 2 KB SRAM provide sufficient headroom for typical 2-3 loop SMPS firmware with logging and supervisory functions.
Typical applications include digitally controlled switch-mode power supplies (D-SMPS), uninterruptible power systems (UPS), telecom rectifiers, server PSUs, photovoltaic micro-inverters, and digital lighting ballasts. The wide operating temperature range of -40C to +85C (Industrial grade) supports industrial, telecom, and embedded computing environments.
When designing with this part, place the exposed thermal pad (EP) on a top-layer copper pour of at least 1 square inch to keep theta_JA within spec. Decouple VDD/VSS pairs with 100 nF X7R ceramic capacitors placed within 3 mm of each pin pair, and route analog AVSS/AVDD traces separately from noisy switching return paths to preserve ADC accuracy.
This page synthesizes verified distributor pricing, drop-in alternative candidates in the same VTLA-44 footprint, and practical design notes compiled from the manufacturer datasheet and SMPS application notes not consolidated on a single product page.
Bộ thay thế dễ dàng lắp đặt cho DSPIC33FJ16GS404-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 DSPIC33FJ16GS404-I/TL (cùng hình factor và footprint) — khác nhau ở PWM Channels, ADC, Maximum CPU Speed, Analog Comparators, Core Architecture.
DSPIC33FJ16GS404-50I/TL
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →DSPIC33FJ16GS404-E/TL
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →DSPIC33FJ16GS404-H/TL
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →DSPIC33FJ16GS404-I/TL Tỷ lệ tối đa & tính chất điện
| Architecture | dsPIC33F (16-bit DSC, 5-stage pipeline modified Harvard) |
| CPU Performance | 40 MIPS @ 3.3V |
| Program Memory (Flash) | 16 KB (16K x 8) |
| Data Memory (SRAM) | 2 KB (2K x 8) |
| Operating Voltage (VDD) | 3.0 V to 3.6 V |
| Nhiệt độ hoạt động | -40 C to +85 C (Industrial) |
| ADC | 10-bit, up to 6 S&H, ~1.1 Msps (configurable) |
| PWM Channels | Up to 4 SMPS-optimized PWM channels |
| Analog Comparators | 2 with reference DACs |
| UART Modules | 1 x UART (with IrDA support) |
| SPI Modules | 1 x SPI |
| I2C Modules | 1 x I2C (10-bit addressing supported) |
| Timers | 16-bit timer/capture/compare modules |
| Hộp | 44-pin VTLA (6x6 mm) with exposed pad |
| Kiểu lắp đặt | Surface Mount |
| Cấp MSL | 3 (per JEDEC J-STD-020) |
| Trạng thái RoHS | Compliant |
| Lead-Free | Yes |
Cấu hình chân DSPIC33FJ16GS404-I/TL
| Chân 1 | RP15/RX/DT/CN12/PMCS1/RB15 — Remappable I/O, UART RX, I2C data, address bit, PMP chip select, RB15 |
| Chân 2 | RP14/TX/CK/CN11/RB14 — Remappable I/O, UART TX, I2C clock, RB14 |
| Chân 3 | RP13/CN8/RB13 — Remappable I/O, RB13 |
| Chân 4 | RP12/CN9/RB12 — Remappable I/O, RB12 |
| Chân 5 | RP11/CN10/RB11 — Remappable I/O, RB11 |
| Chân 6 | RP10/CN11/RB10 — Remappable I/O, RB10 |
| Chân 7 | RP9/CN12/RB9 — Remappable I/O, RB9 |
| Chân 8 | RP8/CN13/RB8 — Remappable I/O, RB8 |
| Chân 9 | RP7/INT0/CN14/RB7 — Remappable I/O, external interrupt, RB7 |
| Chân 10 | RP6/RB6 — Remappable I/O, RB6 |
| Chân 11 | RP5/RB5 — Remappable I/O, RB5 |
| Chân 12 | RP4/RB4 — Remappable I/O, RB4 |
| Chân 13 | RP3/RA9 — Remappable I/O, RA9 |
| Chân 14 | RP2/RA8 — Remappable I/O, RA8 |
| Chân 15 | RP1/RA7 — Remappable I/O, RA7 |
| Chân 16 | RP0/RA6 — Remappable I/O, RA6 |
| Chân 17 | AVDD — Analog supply voltage |
| Chân 18 | AVSS — Analog ground |
| Chân 19 | MCLR — Master clear (reset) input |
| Chân 20 | VDD — Positive supply voltage |
| Chân 21 | VSS — Ground |
| Chân 22 | OSC1/CLKI/RA4 — Crystal oscillator input, RA4 |
| Chân 23 | OSC2/CLKO/RA5 — Crystal oscillator output, RA5 |
| Chân 24 | RC15 — Port C bit 15 |
| Chân 25 | RC14 — Port C bit 14 |
| Chân 26 | RC13 — Port C bit 13 |
| Chân 27 | RC12 — Port C bit 12 |
| Chân 28 | RC11 — Port C bit 11 |
| Chân 29 | RC10 — Port C bit 10 |
| Chân 30 | RC9 — Port C bit 9 |
| Chân 31 | RC8 — Port C bit 8 |
| Chân 32 | RC7/RX2 — Port C bit 7, UART2 RX |
| Chân 33 | RC6/TX2 — Port C bit 6, UART2 TX |
| Chân 34 | PWM1H/RC5 — PWM1 high output, RC5 |
| Chân 35 | PWM1L/RC4 — PWM1 low output, RC4 |
| Chân 36 | PWM2H/RC3 — PWM2 high output, RC3 |
| Chân 37 | PWM2L/RC2 — PWM2 low output, RC2 |
| Chân 38 | PWM3H/RC1 — PWM3 high output, RC1 |
| Chân 39 | PWM3L/RC0 — PWM3 low output, RC0 |
| Chân 40 | FLTA3/RA14 — PWM fault input 3, RA14 |
| Chân 41 | FLTA2/RA15 — PWM fault input 2, RA15 |
| Chân 42 | FLTA1/RA0 — PWM fault input 1, RA0 |
| Chân 43 | VDD — Positive supply voltage (2nd pin) |
| Chân 44 | VSS — Ground (2nd pin) |
Ứng dụng tiêu biểu
DSPIC33FJ16GS404-I/TL phù hợp cho 6 Áp dụngs: Digitally Controlled SMPS (D-SMPS), Uninterruptible Power Supplies (UPS), Telecom Rectifiers and Server PSUs, Photovoltaic Micro-Inverters, Digital Lighting Ballasts, Industrial Motor Control (Low-Voltage BLDC).
Digitally Controlled SMPS (D-SMPS)
The DSPIC33FJ16GS404-I/TL is purpose-built for digitally controlled switch-mode power supplies, where its integrated 10-bit multi-channel ADC, up to 4 SMPS-optimized PWM channels, and two analog comparators with reference DACs allow it to close multi-loop digital control in real time. The 40 MIPS DSP engine executes single-cycle 16x16 MAC instructions, enabling PID and state-space compensator algorithms at switching frequencies up to several hundred kHz while leaving headroom for telemetry and supervisory logic. This makes the device ideal for digital PFC, full-bridge, half-bridge, and LLC primary-side controllers where analog parts cannot flexibly adapt to changing load profiles.
Được đề xuất
Uninterruptible Power Supplies (UPS)
In UPS systems the DSPIC33FJ16GS404-I/TL manages inverter control, battery charging profiles, and grid synchronization. The 40 MIPS throughput handles the inverter's digital PWM generation with sub-microsecond jitter while the analog comparators with reference DACs close the current-mode loop in real time, ensuring low-distortion sine output. The 16 KB Flash comfortably fits inverter commutation, MPPT (when paired with solar), and battery management firmware, while the 2 KB SRAM supports runtime metering and waveform lookup tables common in modern double-conversion UPS topologies.
Được đề xuất
Telecom Rectifiers and Server PSUs
The DSPIC33FJ16GS404-I/TL is well suited to telecom rectifier and server PSU applications where digital control improves efficiency over analog implementations. Its SMPS-optimized PWM and dedicated current-reset/PWM-latch inputs support peak-current-mode control in AC-DC and isolated DC-DC stages. The DSC's deterministic interrupt latency ensures consistent power-conversion timing under variable processing loads, which is critical for meeting EN/IEC 62386 telemetry requirements and for inter-module current sharing in high-availability server power shelves.
Được đề xuất
Photovoltaic Micro-Inverters
The DSPIC33FJ16GS404-I/TL performs well in photovoltaic micro-inverters and string inverters where grid synchronization, MPPT control, and anti-islanding protection all run concurrently. The device's PWM with duty-cycle resolution at the nanosecond range supports 100 kHz+ switching while the 10-bit ADC continuously samples PV panel voltage and current for MPPT algorithms. The 16-bit DSP MAC operations execute incremental conductance or perturb-and-observe MPPT in tens of microseconds, maximizing energy harvest throughout the day even under partial-shade conditions.
Được đề xuất
Digital Lighting Ballasts
For digital fluorescent and LED ballasts, the DSPIC33FJ16GS404-I/TL offers sub-microsecond PWM resolution for dimming control and PF correction. The two analog comparators with reference DACs enable a one-chip implementation of PFC plus resonant-ballast half-bridge control. This reduces BOM count versus traditional analog ballasts, while the dsPIC's C-friendly toolchain shortens development time for new lamp models. The Industrial operating temperature of -40C to +85C covers indoor and outdoor luminaire enclosures.
Được đề xuất
Industrial Motor Control (Low-Voltage BLDC)
Although optimized for SMPS, the DSPIC33FJ16GS404-I/TL can drive low-voltage brushless DC motor commutation, where its high-resolution PWM and fast ADC deliver smooth torque output at low speeds. The DSP MAC operations enable field-oriented control (FOC) algorithms within a small firmware footprint. The on-chip 16-bit timers generate complementary PWM with dead-time insertion suitable for three-phase inverter legs, making the DSC a single-chip solution for small pumps, fans, and pump controllers in appliance and industrial automation applications.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho DSPIC33FJ16GS404-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 | DSPIC33FJ16GS404-50I/TL | DSPIC33FJ16GS404-E/TL | DSPIC33FJ16GS404-H/TL | DSPIC33FJ16GS404-I/ML |
|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 44-VTLA (6x6) | 44-VTLA (6x6) - same | 44-VTLA (6x6) - same | 44-VTLA (6x6) - same | 44-QFN (8x8) - different |
| CPU Speed | 40 MIPS | 50 MIPS | 40 MIPS | 40 MIPS | 40 MIPS |
| Flash Memory | 16 KB | 16 KB | 16 KB | 16 KB | 16 KB |
| SRAM Memory | 2 KB | 2 KB | 2 KB | 2 KB | 2 KB |
| Operating Voltage | 3.0 V to 3.6 V | 3.0 V to 3.6 V | 3.0 V to 3.6 V | 3.0 V to 3.6 V | 3.0 V to 3.6 V |
| Temperature Range | -40 C to +85 C (Industrial) | -40 C to +85 C (Industrial) | -40 C to +125 C (Extended) | -40 C to +85 C (Industrial) | -40 C to +85 C (Industrial) |
| PWM Channels | Up to 4 SMPS-optimized | Up to 4 SMPS-optimized | Up to 4 SMPS-optimized | Up to 4 SMPS-optimized | Up to 4 SMPS-optimized |
| ADC | 10-bit | 10-bit | 10-bit | 10-bit | 10-bit |
Bảo phân biệt quan trọng
- Purpose-built SMPS peripheral set (vsGeneric PIC24F/PIC32MX MCUs)
- 40 MIPS DSP engine with on-chip MAC (vsPIC24F (16 MIPS without MAC))
- Wide operating voltage (3.0V to 3.6V) with industrial temperature grade (vsDSPIC33FJ16GS402-I/MM (28-QFN smaller Flash variant))
Ghi chú thiết kế
The 44-pin VTLA package has an exposed thermal pad that MUST be soldered to a top-layer copper pour. Allocate at least 1 square inch of contiguous copper to the EP to keep theta_JA at the typical ~30 C/W level. Without EP soldering, theta_JA can jump above 100 C/W and cause thermal-induced fault-trip events under sustained 40 MIPS operation. (Estimated: based on generic VTLA-44 JEDEC EIA/JESD51-7 four-layer test board assumptions; see Microchip 70284 family datasheet for measured values.)
Place AVDD/AVSS analog supply decoupling 100 nF X7R ceramic capacitors within 3 mm of the analog pins (AVDD, AVSS). Add a bulk 10 uF X5R capacitor at the analog supply rail to filter ADC reference noise. Use a star-ground topology where the analog AVSS pin ties directly to the linear regulator's ground reference, separate from the digital ground pour serving noisy PWM return currents; this preserves ADC accuracy under high di/dt events.
When using the device's high-speed analog comparators for current-mode control, keep the comparator inputs (RC2/RC3, etc.) traces short and away from switching node routes. Add 4.7 nF ceramic RC snubbers at the current-sense input pads if the layout requires long runs. The Current Reset input has Schmitt-trigger hysteresis but still benefits from a 100 ns deglitch filter tuned to the application's switching frequency.
Do not bypass the MCLR pin circuit: add a 10 kohm pull-up to VDD plus a 100 nF to VSS for noise immunity - missing this decoupling frequently results in erroneous resets in noisy SMPS environments. Also, ensure all VDD/VSS pin pairs are connected, even on pins that appear unused; the on-chip ADC and regulator need all pairs to handle inrush transients during startup. Last: confirm the firmware does not disable unused analog comparators while leaving their inputs floating, which can cause phantom interrupts.
Thông tin tuân thủ
Per Microchip product page: full RoHS compliance, lead-free terminal finish. Not AEC-Q100 qualified; the extended-temperature E-grade is not the same as AEC-Q100 automotive qualification.
