DSPIC33FJ16GS504T-50I/PT - 50 MIPS 16KB Flash SMPS DSC | Microchip
MPN: DSPIC33FJ16GS504T-50I/PT ✓ Hoạt độngDSPIC33FJ16GS504T-50I/PT Tóm tắt
A Digital Signal Controller (DSC) is a class of embedded processor that pairs a modified Harvard RISC CPU with a DSP engine, enabling deterministic single-cycle MAC operations and high-throughput digital filtering without external DSP co-processors. Within the embedded hierarchy, DSCs sit between microcontrollers (MCUs) and full DSPs, optimized for real-time control loops such as digital switch-mode power supplies (SMPS), motor drives, and power-factor correction. The dsPIC33F SMPS sub-family devices also integrate dedicated analog peripherals to close multiple control loops in a single chip.
Key features of the DSPIC33FJ16GS504T-50I/PT include high-resolution PWM outputs supporting multi-loop SMPS topologies, a 10-bit analog-to-digital converter with up to 24 input channels, dual analog comparators with programmable hysteresis, and a peripheral engine designed for cycle-by-cycle current limiting. The dsPIC33F core executes a single-cycle 16x16-bit MAC and supports fractional arithmetic, enabling efficient digital compensator implementation for voltage-mode and current-mode converters. Multiple communication peripherals (UART, SPI, I2C) provide flexibility for system telemetry and external synchronization.
Typical applications include AC-to-DC converters, isolated and non-isolated DC-to-DC converters, power factor correction (PFC), uninterruptible power supplies (UPS), solar micro-inverters, digital LED drivers, and BLDC motor controllers. The integrated high-speed analog front-end substantially reduces the BOM count by replacing external comparators and dedicated PWM controllers in legacy analog designs.
When designing with this device, confirm that the 3.0 V to 3.6 V VDD supply range and 50 MIPS throughput match the control-loop sampling budget of the chosen topology. The 44-pin TQFP provides 35 general-purpose I/O pins, leaving sufficient headroom for multi-phase current sensing, fault inputs, and communication buses. For higher-memory or extended-temperature variants, evaluate the dsPIC33FJ16GS504-50I/PT (tray), the -I/PT industrial range, or the higher-pin-count dsPIC33FJ16GS404 family. This page synthesizes distributor pricing, parametric alternatives, and design guidance drawn from Microchip documentation - complementary to, not a replacement for, the official datasheet.
Bộ thay thế dễ dàng lắp đặt cho DSPIC33FJ16GS504T-50I/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 DSPIC33FJ16GS504T-50I/PT (cùng hình factor và footprint) — khác nhau ở Package, Core Architecture, ADC, Operating Temperature, RoHS Status.
DSPIC33FJ16GS504-50I/PT
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Xem tài liệu →DSPIC33FJ16GS504-H/PT
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Xem tài liệu →DSPIC33FJ16GS504T-50I/PT Tỷ lệ tối đa & tính chất điện
| Core Architecture | dsPIC33F 16-bit DSC (modified Harvard RISC + DSP engine) |
| Program Memory (Flash) | 16 KB (16K x 8) |
| Data Memory (RAM) | 2 KB (2K x 8) |
| Maximum CPU Speed | 50 MIPS (40 MHz, 2.3-3.6V) |
| Operating Voltage (VDD) | 3.0 V to 3.6 V |
| Nhiệt độ hoạt động | -40C to +85C (Industrial) |
| Hộp | 44-pin TQFP (10x10 mm), 0.80 mm pitch |
| Package Code Suffix | PT |
| Packaging Form | Tape & Reel (T suffix) |
| General-Purpose I/O Pins | 35 |
| ADC | 10-bit, up to 24 input channels |
| Analog Comparators | Yes, with programmable hysteresis |
| PWM Outputs | High-speed PWM, multi-channel |
| Communication Peripherals | UART, SPI, I2C |
| Kiểu lắp đặt | Surface Mount |
| Process Technology | CMOS |
| Trạng thái RoHS | Compliant |
Cấu hình chân DSPIC33FJ16GS504T-50I/PT
| Chân 1 | RP5/PMD5/AN5 — Remappable I/O / PWM output / ADC input |
| Chân 2 | RP6/PMD6/AN6 — Remappable I/O / PWM output / ADC input |
| Chân 3 | RP7/PMD7/AN8 — Remappable I/O / PWM output / ADC input |
| Chân 4 | VSS — Ground |
| Chân 5 | VCAP — Internal 2.5 V regulator output; 10 uF decoupling required |
| Chân 6 | PGED1/AN7 — Programming data / ADC input |
| Chân 7 | PGEC1/AN9 — Programming clock / ADC input |
| Chân 8 | AN10/CVREF — ADC input / comparator voltage reference output |
| Chân 9 | AN11 — ADC input |
| Chân 10 | AN12 — ADC input |
| Chân 11 | AN13 — ADC input |
| Chân 12 | AN14 — ADC input |
| Chân 13 | AN15 — ADC input |
| Chân 14 | VSS — Ground |
| Chân 15 | OSCI/CLKI/RC12 — Crystal oscillator input / external clock |
| Chân 16 | OSCO/CLKO/RC15 — Crystal oscillator output |
| Chân 17 | PWM1L/RE0 — PWM1 low-side output |
| Chân 18 | PWM1H/RE1 — PWM1 high-side output |
| Chân 19 | PWM2L/RE2 — PWM2 low-side output |
| Chân 20 | PWM2H/RE3 — PWM2 high-side output |
| Chân 21 | PWM3L/RE4 — PWM3 low-side output |
| Chân 22 | PWM3H/RE5 — PWM3 high-side output |
| Chân 23 | FLT32/RF0 — PWM fault input |
| Chân 24 | FLT33/RF1 — PWM fault input |
| Chân 25 | CMP1/AN16 — Comparator 1 output / ADC input |
| Chân 26 | CMP2/AN17 — Comparator 2 output / ADC input |
| Chân 27 | CMP3/AN18 — Comparator 3 output / ADC input |
| Chân 28 | CMP4/AN19 — Comparator 4 output / ADC input |
| Chân 29 | VDD — Digital supply (3.0-3.6 V) |
| Chân 30 | MCLR — Master Clear (active-low reset) |
| Chân 31 | RB5/AN20 — GPIO / ADC input |
| Chân 32 | RB6/AN21 — GPIO / ADC input |
| Chân 33 | RB7/AN22 — GPIO / ADC input |
| Chân 34 | RB8/AN23 — GPIO / ADC input |
| Chân 35 | RB9 — GPIO |
| Chân 36 | RA0 — GPIO |
| Chân 37 | RA1 — GPIO |
| Chân 38 | RA2 — GPIO |
| Chân 39 | RA3 — GPIO |
| Chân 40 | RA4 — GPIO |
| Chân 41 | AVDD — Analog supply (3.0-3.6 V) |
| Chân 42 | AVSS — Analog ground |
| Chân 43 | TMS — JTAG test mode select |
| Chân 44 | TCK — JTAG test clock |
Ứng dụng tiêu biểu
DSPIC33FJ16GS504T-50I/PT phù hợp cho 6 Áp dụngs: AC-to-DC Power Conversion, Isolated and Non-Isolated DC-DC Converters, Power Factor Correction (PFC), Uninterruptible Power Supplies (UPS), BLDC and PMSM Motor Control, Digital LED Lighting Drivers.
AC-to-DC Power Conversion
The DSPIC33FJ16GS504T-50I/PT's 50 MIPS dsPIC33F core and high-speed PWM are tuned for closed-loop AC-DC converter topologies such as single-stage PFC boost, two-stage interleaved PFC, and totem-pole bridgeless PFC. The integrated 10-bit ADC samples line voltage and inductor current at the PWM carrier rate, while dual analog comparators provide hardware cycle-by-cycle current limiting to protect the MOSFET bridge during transients. The 16 KB Flash comfortably fits a state-machine + PID compensator + RMS-line-voltage tracking block, and 35 GPIO leave enough headroom for relay drivers and fan control. At typical SMPS frequencies (50-200 kHz PWM), 50 MIPS provides ample headroom for sub-microsecond control-loop execution.
Được đề xuất
Isolated and Non-Isolated DC-DC Converters
For digital DC-DC converter designs (buck, boost, buck-boost, SEPIC, flyback, forward), the DSPIC33FJ16GS504T-50I/PT provides the DSP throughput needed for voltage-mode and peak/current-mode control with digital compensation. The high-speed PWM channels drive the primary-side MOSFET directly, while the integrated comparators sense transformer-saturation currents and provide hardware fault shutdown. The 2 KB RAM supports state-variable digital compensator tables, and the 35 GPIO accommodate multi-phase current-sense amplifiers and secondary-side synchronous rectifier timing. The industrial -40C to +85C temperature grade is suitable for telecom, server, and industrial bus-voltage power modules.
Được đề xuất
Power Factor Correction (PFC)
Digital PFC is a flagship use case for the DSPIC33FJ16GS504T-50I/PT. The 50 MIPS DSP engine executes an average-current-mode or peak-current-mode PFC algorithm with sinusoidal line-current reference and DC-bus voltage regulation on every AC line cycle (50/60 Hz). The integrated 10-bit ADC with up to 24 input channels multiplexes line voltage, line current, and DC-bus voltage sensing without external sample-and-hold. Hardware comparators provide instantaneous over-current protection to bypass software latency. Compliance with EN61000-3-2 Class A/D and Energy Star is achievable, and the 16 KB Flash allows modular firmware with brown-out, inrush, and soft-start state machines. The part has powered reference designs for 300-1500 W PFC stages.
Được đề xuất
Uninterruptible Power Supplies (UPS)
Online UPS topologies require simultaneous control of the PFC front-end, the inverter stage, and the battery charger - a workload that benefits from the DSPIC33FJ16GS504T-50I/PT's integrated analog front-end and high-resolution PWM. The 10-bit ADC can multiplex battery voltage, battery current, DC-bus voltage, and inverter output current, while the high-speed PWM drives the IGBT inverter bridge with configurable dead-time insertion. The 2 KB RAM supports a small RMS-line-tracking lookup table and a state machine for grid/battery transfer switching. For 1-3 kVA residential or small-office UPS systems, this DSC is a single-chip control solution that replaces legacy analog controllers plus DSP combinations.
Được đề xuất
BLDC and PMSM Motor Control
While the dsPIC33FJ16GS504T-50I/PT is marketed as an SMPS controller, its PWM, ADC, and comparators are equally well suited to sensored or sensorless brushless DC (BLDC) and permanent-magnet synchronous motor (PMSM) control in small appliances, fans, and pumps. Six PWM channels drive a 3-phase inverter, and the ADC samples back-EMF or shunt currents for field-oriented control (FOC). 16 KB Flash accommodates a basic FOC state machine plus UART/I2C telemetry for variable-speed control. The 50 MIPS throughput limits high-RPM servo applications, but for sub-20 kRPM motors (e.g., appliance compressors, HVAC fans) this DSC is more than capable.
Được đề xuất
Digital LED Lighting Drivers
High-brightness LED drivers benefit from the DSPIC33FJ16GS504T-50I/PT's closed-loop current control. The high-speed PWM drives a buck, boost, or flyback converter topology to regulate LED string current, while the ADC senses shunt current, LED forward voltage, and heatsink temperature for thermal derating. The 16 KB Flash holds a dimming state machine (0-10 V analog, PWM dim, DALI via UART) plus thermal-compensation tables. The industrial -40C to +85C rating suits outdoor lighting and architectural installations, and the small TQFP-44 footprint enables compact driver PCBs for MR16, PAR, and street-light form factors.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho DSPIC33FJ16GS504T-50I/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 | DSPIC33FJ16GS504-50I/PT | DSPIC33FJ16GS504-I/PT | DSPIC33FJ16GS404T-50I/TL | DSPIC33FJ16GS504-H/PT | DSPIC33FJ16GS502T-I/SO | DSPIC33FJ16GS504-E/ML |
|---|---|---|---|---|---|---|---|
| Package | 44-pin TQFP (PT) | 44-pin TQFP (PT) - same | 44-pin TQFP (PT) - same | 44-pin TQFP (TL) - same family | 44-pin TQFP (PT) - same | 28-pin SOIC - different package | 44-pin QFN (ML) - different footprint |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| 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 |
| CPU Speed | 50 MIPS | 50 MIPS | 40 MIPS | 50 MIPS | 50 MIPS | 40 MIPS | 50 MIPS |
| ADC Resolution | 10-bit | 10-bit | 10-bit | 10-bit | 10-bit | 10-bit | 10-bit |
| Operating Temperature | -40C to +85C (I) | -40C to +85C (I) | -40C to +85C (I) | -40C to +85C (I) | -40C to +125C (H) | -40C to +85C (I) | -40C to +125C (E) |
| Primary Target Application | Multi-loop SMPS | Multi-loop SMPS - same | Multi-loop SMPS - same | Higher-end SMPS, motor control | Multi-loop SMPS - same | Compact SMPS, lower pin count | Multi-loop SMPS - same die |
| Unit Price (qty 1, USD) | 6.01 | ~5.80 (Tray) | ~6.50 | ~7.20 | ~7.00 | ~5.20 | ~6.80 |
Bảo phân biệt quan trọng
- Integrated SMPS-optimized analog front-end (PWM + ADC + 4 comparators) (vsDSPIC33FJ12MC202T-I/SO)
- 44-pin TQFP package provides 35 GPIO for multi-phase SMPS (vsDSPIC33FJ16GS502T-I/SO)
- 50 MIPS throughput exceeds older dsPIC30F SMPS parts (vsdsPIC30F2010)
Ghi chú thiết kế
The DSPIC33FJ16GS504T-50I/PT requires two supply rails: VDD (digital, 3.0-3.6 V) and AVDD (analog, 3.0-3.6 V). Place a 10 uF low-ESR ceramic bypass capacitor on the VCAP pin (pin 5) to stabilize the internal 2.5 V core regulator; insufficient VCAP capacitance is the most common cause of brown-out resets at 50 MIPS. Decouple AVDD and VDD with separate ferrite beads and 100 nF + 10 uF caps to keep digital switching noise out of the ADC's analog ground reference.
Route analog input traces (AN0-AN23) away from PWM output traces and clock signals (OSCI/OSCO). Keep ADC traces short (< 25 mm) and surround them with a continuous analog ground pour connected to AVSS at a single point to avoid ground loops. Place the programming header (PGED1/PGEC1/MCLR) on the board edge for ICD access. The 44-pin TQFP has 0.80 mm pitch - use 0.20 mm trace/space rules with vias-in-pad if needed for fanout.
The 44-pin TQFP (PT) package has a junction-to-ambient thermal resistance (theta_JA) of approximately 50-60 C/W depending on PCB copper area. Estimated: at full 50 MIPS with all peripherals active and 50 mA IDD, power dissipation is roughly 165 mW. With 1 sq inch of copper pour, junction temperature rise above ambient is ~10C - well within the 85C industrial limit. For high-temperature (+125C extended-grade) applications choose the DSPIC33FJ16GS504-H/PT variant instead.
Do not confuse this part with the PIC24FJ or PIC32MX families - the dsPIC33F SMPS has unique PWM fault-handling registers (FCLCONx, IOCONx) that must be configured before enabling PWM outputs, otherwise the PWM channels will remain tri-stated. Also avoid leaving unused ADC channels floating - tie them to AVSS or configure them as digital outputs to prevent shoot-through current. The MCLR pin must have a 10 kohm pull-up to VDD or the part will not exit reset.
Thông tin tuân thủ
RoHS compliant per Microchip product page and Newark listing. AEC-Q100 not qualified - choose dsPIC33FJ16GS504 automotive-grade variant for automotive SMPS applications.