DSPIC33FJ64GS608T-50I/PT - 16-bit DSC 50MIPS 64KB | Microchip
料号： DSPIC33FJ64GS608T-50I/PT ✓ 量产中| 数量 | 单价 | 小计 |
|---|---|---|
| 1 | $8.97 | $8.97 |
| 10 | $8.27 | $82.70 |
| 100 | $7.75 | $775.00 |
| 500 | $7.45 | $3,725.00 |
| 1,000 | $7.17 | $7,170.00 |
DSPIC33FJ64GS608T-50I/PT 概述
A digital signal controller combines the compute throughput of a DSP with the peripheral integration and control-friendly architecture of a microcontroller. Within the power-management hierarchy, the dsPIC33FJ GS family sits above generic MCUs for digital power tasks: its instruction set supports fast PID and compensator loops, while dedicated high-speed PWM hardware closes control loops without CPU intervention. This makes DSCs the de-facto standard for digitally controlled switch-mode power supplies and power factor correction stages.
Key features include dedicated high-speed PWM peripherals with complementary outputs, dead-time control and fault protection tailored for SMPS topologies; on-chip high-speed ADC modules synchronized to the PWM for cycle-by-cycle sampling; multiple analog comparators for overcurrent and overvoltage protection; CAN for industrial communication; DAC channels and QEI inputs for motion-oriented power conversion. The 50 MIPS core executes one instruction per cycle, allowing multi-loop control schemes in a single device.
Architecturally, the device uses a modified Harvard 16-bit core with DSP multiply-accumulate instructions, separate program and data buses, and hardware looping. The Flash-based program memory supports in-circuit self-programming, and the supply range of 3.0V to 3.6V matches standard 3.3V rails. According to Microchip product documentation, the family explicitly targets AC to DC converters, DC to DC converters, power factor correction, and uninterruptible power supplies.
Typical applications include digitally controlled AC-DC power supplies, interleaved PFC front ends, DC-DC converters, UPS systems, solar inverters, battery chargers, and LED drivers, where the PWM-ADC-comparator pipeline handles fast current-mode control while the CPU executes slower voltage and system loops.
Design consideration: keep the 3.3V supply within the 3.0V to 3.6V window, decouple all VDD/VDDCORE pins with low-ESR ceramics close to the TQFP, and route PWM outputs away from analog ADC inputs to preserve conversion accuracy.
This page synthesizes distributor pricing, drop-in alternatives, design notes, and comparison data not found on the manufacturer product page alone.
直接替换替代料： DSPIC33FJ64GS608T-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： DSPIC33FJ64GS608T-50I/PT （相同外形与封装尺寸） ——差异在于 Package, Operating Temperature, ADC, Program Memory (Flash), CAN.
快速对比工具——选择替代料号进行并排对比：
DSPIC33FJ64GS608-50I/PT
✅ 直接替换✓ 有现货
$5.38 / 个
查看数据手册 →DSPIC33FJ128GS608-50I/PT
✅ 直接替换 ⚠️ 规格未核验📋 参考替代料（不在目录中）
DSPIC33FJ32GS608-50I/PT
✅ 直接替换✓ 有现货
$5.35 / 个
查看数据手册 →DSPIC33FJ64GS608T-E/PT
✅ 直接替换 ⚠️ 规格未核验📋 参考替代料（不在目录中）
DSPIC33FJ64GP708A-I/PT
✅ 直接替换✓ 有现货
$4.18 / 个
查看数据手册 →DSPIC33FJ64GS608T-50I/PT 最大额定值与电气特性
| Core | dsPIC33F 16-bit DSC core |
| Max CPU Speed | 50 MIPS |
| Program Memory (Flash) | 64 KB |
| RAM | 9 KB |
| 电源电压 | 3 V to 3.6 V |
| 工作温度 | -40C to +85C (I grade) |
| 封装 | 80-pin TQFP (PT) |
| 安装类型 | Surface Mount |
| High-Speed PWM | Yes (SMPS-dedicated, complementary outputs, dead-time control) |
| Analog Comparators | 4 |
| DAC Channels | Yes |
| CAN | Yes |
| QEI | Yes (2) |
| Packaging | Tape and Reel (T suffix) |
| RoHS 状态 | Compliant (RoHS3) |
| Typical Applications | AC-DC, DC-DC, PFC, UPS (digital SMPS) |
DSPIC33FJ64GS608T-50I/PT 80-pin tqfp (pt) 引脚配置指南
DSPIC33FJ64GS608T-50I/PT（80-pin tqfp (pt) 封装）的引脚配置。 该数字 IC 包含 GPIO、通信接口（UART、SPI、I2C）和电源引脚。请参阅制造商数据手册以了解复用引脚功能和配置选项。对嵌入式系统设计和 PCB 布局至关重要。
暂无详细引脚数据： DSPIC33FJ64GS608T-50I/PT.
请参阅 数据手册 以查看完整引脚配置。
典型应用
DSPIC33FJ64GS608T-50I/PT 适用于 6 应用s: AC-DC Digital Power Supplies, Power Factor Correction (PFC), DC-DC Converters, Uninterruptible Power Supplies (UPS), Solar Inverters and Battery Chargers, Industrial Motor Drive Front Ends.
AC-DC Digital Power Supplies
The DSPIC33FJ64GS608T-50I/PT is purpose-built for digitally controlled AC-DC converters: according to Microchip, the GS family directly targets AC to DC converter applications with its SMPS-dedicated high-speed PWM, synchronized high-speed ADC and analog comparators. The DSC closes the fast inner current loop in PWM/ADC hardware timing while the 50 MIPS CPU runs the outer voltage loop, startup sequencing and housekeeping. Typical designs use the complementary PWM outputs with dead-time control to drive half-bridge or flywheel stages, and the comparators provide cycle-by-cycle overcurrent trip without CPU latency. Digital control replaces analog compensation networks, allowing firmware-adjustable loop tuning and adaptive features such as burst mode or light-load efficiency optimization.
推荐
Power Factor Correction (PFC)
For PFC stages, Microchip ships an interleaved PFC reference design based on the dsPIC33FJ GS family that takes a universal AC input and produces a high-voltage DC output up to 350W. The DSPIC33FJ64GS608T-50I/PT executes average-current-mode PFC control at switching frequency using the high-speed PWM for boost-switch drive and the high-speed ADC triggered by the PWM for inductor-current sampling each cycle. The 9KB RAM holds control state, line-frequency feedforward and soft-start tables, while 64KB Flash accommodates the PFC engine plus communication and supervisory code. Firmware-implemented THD optimization and phase management give digital PFC designs flexibility that analog controllers cannot match.
推荐
DC-DC Converters
In DC-DC conversion - synchronous buck, boost, half-bridge, full-bridge and LLC topologies - the DSPIC33FJ64GS608T-50I/PT provides the digital control core. Its high-speed PWM peripheral generates complementary outputs with programmable dead time and adaptive phase shift, while the ADC, synchronized to the PWM period, samples output voltage and inductor current once or multiple times per switching cycle. The 4 on-chip comparators implement hardware overcurrent and overvoltage protection with nanosecond-class response, independent of software. The 50 MIPS DSP core with multiply-accumulate instructions executes 3P3Z or PID compensators efficiently, and the 64KB Flash leaves room for multiple topology configurations, telemetry via CAN, and field firmware updates through self-programming.
推荐
Uninterruptible Power Supplies (UPS)
UPS systems require simultaneous control of an AC-DC charger, a DC-AC inverter and static/bypass transfer logic - exactly the multi-loop scenario the GS family datasheet cites as a target application. The DSPIC33FJ64GS608T-50I/PT generates multiple independent PWM phases for the inverter bridge and the PFC/charger stage, samples AC output waveform and battery current through the synchronized ADC, and enforces hardware fault protection via its comparators. The 64KB Flash holds the inverter waveform tables, battery-charge algorithms and CAN or serial communication to a host, while QEI inputs support generator or engine-interface functions in engine-driven variants. Digital implementation enables adaptive waveform correction under nonlinear loads.
推荐
Solar Inverters and Battery Chargers
Grid-tie micro-inverters, solar charge controllers and high-current battery chargers combine an MPPT DC-DC stage with inverter or charging control - tasks matched to the DSPIC33FJ64GS608T-50I/PT. The high-speed ADC tracks PV panel voltage and current for the MPPT perturb-and-observe algorithm running on the 50 MIPS core, the SMPS PWM drives the boost or LLC converter, and comparators protect against panel overvoltage or charger overcurrent in hardware. The 64KB Flash accommodates MPPT, charging state machines (CC/CV, trickle, temperature-compensated), and CAN communication to a battery-management system or inverter host, with in-circuit self-programming enabling field firmware updates after installation.
推荐
Industrial Motor Drive Front Ends
Motor drives need both a fast power-conversion controller and motion-oriented peripherals, and the DSPIC33FJ64GS608T-50I/PT supplies both in one package. Its two QEI (quadrature encoder interface) modules decode encoder feedback from one or two axes, while the SMPS PWM generates the three-phase or DC-bus switching patterns with dead-time control; DAC channels support analog monitoring outputs and comparator inputs accept current-shunt signals for cycle-by-cycle overcurrent protection. The 50 MIPS DSP core executes field-oriented control math, and CAN links the drive to industrial networks. This combination suits servo front ends, DC-bus converters feeding drives, and digitally controlled regenerative braking stages where PWM quality and protection speed dominate.
推荐
推荐产品汇总
工程参考数据： DSPIC33FJ64GS608T-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 | DSPIC33FJ64GS608-50I/PT | DSPIC33FJ128GS608-50I/PT | DSPIC33FJ32GS608-50I/PT | DSPIC33FJ64GP708A-I/PT |
|---|---|---|---|---|---|
| Package | 80-pin TQFP (PT) | 80-pin TQFP - same | 80-pin TQFP - same | 80-pin TQFP - same | 80-pin TQFP - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Core / Performance | dsPIC33F 16-bit, 50 MIPS | dsPIC33F 16-bit, 50 MIPS | dsPIC33F 16-bit, 50 MIPS | dsPIC33F 16-bit, 50 MIPS | dsPIC33F 16-bit, 50 MIPS |
| Program Flash | 64 KB | 64 KB | 128 KB (+100%) | 32 KB (-50%) | 64 KB |
| RAM | 9 KB | 9 KB | 9 KB | 9 KB | 8 KB (approx.) |
| SMPS High-Speed PWM | Yes (dedicated digital-power PWM) | Yes | Yes | Yes | No (standard motor-control PWM) |
| Operating Temperature | -40C to +85C (I) | -40C to +85C (I) | -40C to +85C (I) | -40C to +85C (I) | -40C to +85C (I) |
| Packaging | Tape & Reel (T) | Tube/Tray (non-T) | Tube/Tray (non-T) | Tube/Tray (non-T) | Tray |
关键差异点
- SMPS-dedicated high-speed PWM with ADC synchronization （对比 DSPIC33FJ64GP708A-I/PT)
- Balanced 64KB Flash / 9KB RAM in 80 pins （对比 DSPIC33FJ32GS608-50I/PT)
- Headroom for feature growth without respin （对比 DSPIC33FJ128GS608-50I/PT)
- Trade-off: industrial temperature grade only in this ordering code （对比 DSPIC33FJ64GS608T-E/PT)
设计说明
Supply the DSPIC33FJ64GS608T-50I/PT from a regulated 3.3V rail kept within the 3.0V-3.6V datasheet window. The GS family uses an internal core regulator, so the VDDCORE pin requires the specified external capacitor (per the manufacturer datasheet typical application schematic) - omitting it destabilizes the core supply and can corrupt Flash writes. Decouple every VDD and AVDD pin of the 80-TQFP with 100nF ceramics placed within 2-3 mm of the pin, plus bulk 10uF per supply domain. Keep the analog AVDD domain filtered (ferrite plus 1uF) to protect ADC accuracy.
In digital-power layouts, the DSC shares a board with high dv/dt switching nodes. Route PWM output traces with controlled loops and keep them away from ADC analog inputs, the crystal circuit and comparator input nets. Use a solid ground plane with a quiet analog region under AVDD/AVSS and the ADC reference. Connect the exposed logic ground to the power ground at a single star point near the controller. Bring MCLR (with 10k pull-up) and the PGD/PGC pair to a 5-pin ICSP header for in-circuit programming and debug without removing the TQFP.
Two common mistakes with this family: first, relying on software-only protection - the 4 on-chip comparators exist precisely because firmware loops are too slow for cycle-by-cycle overcurrent; always wire comparator fault outputs to the PWM fault mux. Second, ignoring PLL configuration at startup: the 50 MIPS rating requires the correct oscillator/PLL setup (FRC or crystal with PLL); a misconfigured clock runs the part slower and silently breaks PWM timing and ADC sampling synchronization. Verify clock configuration with the Microchip code examples and reference designs for the GS family before tuning control loops.
合规信息
RoHS3 compliant and lead-free per distributor listings (mcu-supplier.com, components-store). REACH, halogen-free and conflict-minerals status not stated in provided data.
