DSPIC33FJ16GS504T-50I/PT - 50 MIPS 16KB Flash SMPS DSC | Microchip
料号： DSPIC33FJ16GS504T-50I/PT ✓ 量产中| 数量 | 单价 | 小计 |
|---|---|---|
| 1 | $6.01 | $6.01 |
| 10 | $5.41 | $54.10 |
| 100 | $4.81 | $481.00 |
| 500 | $4.21 | $2,105.00 |
| 1,000 | $3.61 | $3,610.00 |
| 3,000 | $3.15 | $9,450.00 |
DSPIC33FJ16GS504T-50I/PT 概述
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.
直接替换替代料： DSPIC33FJ16GS504T-50I/PT ——相同封装，引脚兼容。需要 PCB 改动的不同封装料号已排除。
本系列中的变体
可与以下型号直接替换的同系列型号： DSPIC33FJ16GS504T-50I/PT （相同外形与封装尺寸） ——差异在于 Package, Core Architecture, ADC, Operating Temperature, RoHS Status.
快速对比工具——选择替代料号进行并排对比：
DSPIC33FJ16GS504-50I/PT
✅ 直接替换✓ 有现货
$3.18 / 个
查看数据手册 →DSPIC33FJ16GS504-I/PT
✅ 直接替换✓ 有现货
$2.35 / 个
查看数据手册 →DSPIC33FJ16GS502T-I/SO
✅ 直接替换 ⚠️ 规格未核验✓ 有现货
$2.95 / 个
查看数据手册 →DSPIC33FJ16GS404T-50I/TL
✅ 直接替换✓ 有现货
$5.05 / 个
查看数据手册 →DSPIC33FJ16GS504-H/PT
✅ 直接替换✓ 有现货
$4.1 / 个
查看数据手册 →DSPIC33FJ16GS504-E/ML
✅ 直接替换✓ 有现货
$6.21 / 个
查看数据手册 →DSPIC33FJ16GS504T-50I/PT 最大额定值与电气特性
| 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 |
| 工作温度 | -40C to +85C (Industrial) |
| 封装 | 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 |
| 安装类型 | Surface Mount |
| Process Technology | CMOS |
| RoHS 状态 | Compliant |
DSPIC33FJ16GS504T-50I/PT 引脚配置
| 引脚 1 | RP5/PMD5/AN5 — Remappable I/O / PWM output / ADC input |
| 引脚 2 | RP6/PMD6/AN6 — Remappable I/O / PWM output / ADC input |
| 引脚 3 | RP7/PMD7/AN8 — Remappable I/O / PWM output / ADC input |
| 引脚 4 | VSS — Ground |
| 引脚 5 | VCAP — Internal 2.5 V regulator output; 10 uF decoupling required |
| 引脚 6 | PGED1/AN7 — Programming data / ADC input |
| 引脚 7 | PGEC1/AN9 — Programming clock / ADC input |
| 引脚 8 | AN10/CVREF — ADC input / comparator voltage reference output |
| 引脚 9 | AN11 — ADC input |
| 引脚 10 | AN12 — ADC input |
| 引脚 11 | AN13 — ADC input |
| 引脚 12 | AN14 — ADC input |
| 引脚 13 | AN15 — ADC input |
| 引脚 14 | VSS — Ground |
| 引脚 15 | OSCI/CLKI/RC12 — Crystal oscillator input / external clock |
| 引脚 16 | OSCO/CLKO/RC15 — Crystal oscillator output |
| 引脚 17 | PWM1L/RE0 — PWM1 low-side output |
| 引脚 18 | PWM1H/RE1 — PWM1 high-side output |
| 引脚 19 | PWM2L/RE2 — PWM2 low-side output |
| 引脚 20 | PWM2H/RE3 — PWM2 high-side output |
| 引脚 21 | PWM3L/RE4 — PWM3 low-side output |
| 引脚 22 | PWM3H/RE5 — PWM3 high-side output |
| 引脚 23 | FLT32/RF0 — PWM fault input |
| 引脚 24 | FLT33/RF1 — PWM fault input |
| 引脚 25 | CMP1/AN16 — Comparator 1 output / ADC input |
| 引脚 26 | CMP2/AN17 — Comparator 2 output / ADC input |
| 引脚 27 | CMP3/AN18 — Comparator 3 output / ADC input |
| 引脚 28 | CMP4/AN19 — Comparator 4 output / ADC input |
| 引脚 29 | VDD — Digital supply (3.0-3.6 V) |
| 引脚 30 | MCLR — Master Clear (active-low reset) |
| 引脚 31 | RB5/AN20 — GPIO / ADC input |
| 引脚 32 | RB6/AN21 — GPIO / ADC input |
| 引脚 33 | RB7/AN22 — GPIO / ADC input |
| 引脚 34 | RB8/AN23 — GPIO / ADC input |
| 引脚 35 | RB9 — GPIO |
| 引脚 36 | RA0 — GPIO |
| 引脚 37 | RA1 — GPIO |
| 引脚 38 | RA2 — GPIO |
| 引脚 39 | RA3 — GPIO |
| 引脚 40 | RA4 — GPIO |
| 引脚 41 | AVDD — Analog supply (3.0-3.6 V) |
| 引脚 42 | AVSS — Analog ground |
| 引脚 43 | TMS — JTAG test mode select |
| 引脚 44 | TCK — JTAG test clock |
典型应用
DSPIC33FJ16GS504T-50I/PT 适用于 6 应用s: 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.
推荐
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.
推荐
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.
推荐
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.
推荐
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.
推荐
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.
推荐
推荐产品汇总
工程参考数据： DSPIC33FJ16GS504T-50I/PT ——对比、设计指导和合规信息。
选型指南
与替代料对比
| 参数 | 本产品 | 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 |
关键差异点
- Integrated SMPS-optimized analog front-end (PWM + ADC + 4 comparators) （对比 DSPIC33FJ12MC202T-I/SO)
- 44-pin TQFP package provides 35 GPIO for multi-phase SMPS （对比 DSPIC33FJ16GS502T-I/SO)
- 50 MIPS throughput exceeds older dsPIC30F SMPS parts （对比 dsPIC30F2010)
设计说明
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.
合规信息
RoHS compliant per Microchip product page and Newark listing. AEC-Q100 not qualified - choose dsPIC33FJ16GS504 automotive-grade variant for automotive SMPS applications.