DSPIC33FJ64GS406-I/MR - 16-bit DSC, 64KB Flash, 50MIPS | Microchip
料号： DSPIC33FJ64GS406-I/MR ✓ 量产中| 数量 | 单价 | 小计 |
|---|---|---|
| 1 | $6.42 | $6.42 |
| 10 | $5.78 | $57.80 |
| 100 | $5.15 | $515.00 |
| 500 | $4.62 | $2,310.00 |
| 1,000 | $4.15 | $4,150.00 |
DSPIC33FJ64GS406-I/MR 概述
A digital signal controller is a hybrid device that merges the control-flow convenience of a microcontroller (MCU) with the multiply-accumulate (MAC) throughput of a digital signal processor (DSP). Within the power-management semiconductor hierarchy, a DSC sits between a general-purpose MCU and a dedicated power-management IC, executing closed-loop control algorithms for switch-mode power supplies in real time.
Key features include the high-speed PWM peripheral engineered for SMPS topologies, a high-speed analog-to-digital converter that can synchronize conversions to the PWM cycle, and multiple analog comparators for cycle-by-cycle current limiting. The device is currently listed by Microchip as In Production, and the industrial temperature suffix (-I) covers -40C to +85C operation.
Architecturally, the dsPIC33FJ64GS406 pairs a modified Harvard 16-bit CPU with DSP instructions (MAC, DSP multiply) so that proportional-integral compensators and current-mode control loops execute with deterministic timing. The flash program memory is 64KB, sufficient for complex multi-loop control firmware including PFC stages, resonant converters, and digital ballast algorithms. According to the Microchip family data sheet (document 70000591f), the GS family devices specifically target common multi-loop digital switch-mode power supplies and digital power-conversion applications such as AC-to-DC converters, DC-to-DC converters, power factor correction, and uninterruptible power supplies.
Typical applications include interleaved power factor correction (PFC) front ends - Microchip ships a reference design using this controller that accepts universal AC input and produces a single high-voltage DC output up to 350W - plus LLC and full-bridge DC-DC converters, solar micro-inverters, and server power supplies.
A key design consideration: keep ICSP (PGECx/PGEDx) programming trace lengths short, and always use a matched PGECx/PGEDx pair - if PGEC2 carries ICSPCLK, ICSPDAT must connect to PGED2. All VDD/VSS pins must be connected and decoupled.
This page synthesizes distributor pricing tiers, drop-in family alternatives, and practical digital-power design notes not found in the manufacturer data sheet.
直接替换替代料： DSPIC33FJ64GS406-I/MR ——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： DSPIC33FJ64GS406-I/MR （相同外形与封装尺寸） ——差异在于 Package, Timers, Operating Temperature, Core Architecture, Maximum Performance.
快速对比工具——选择替代料号进行并排对比：
DSPIC33FJ64GS406-E/MR
✅ 直接替换✓ 有现货
$4.02 / 个
查看数据手册 →DSPIC33FJ32GS406-I/MR
✅ 直接替换 ⚠️ 规格未核验📋 参考替代料（不在目录中）
DSPIC33FJ64GS606-I/MR
✅ 直接替换 ⚠️ 规格未核验✓ 有现货
联系询价
查看数据手册 →DSPIC33FJ64GS406-50I/MR
✅ 直接替换✓ 有现货
$4.45 / 个
查看数据手册 →DSPIC33FJ64GS406-I/MR 最大额定值与电气特性
| Core Architecture | 16-bit dsPIC DSC (MCU/DSP) |
| Program Memory (Flash) | 64 KB |
| Maximum Performance | 50 MIPS |
| 封装 | 64-VQFN (9x9 mm), surface mount |
| 工作温度范围 | -40C to +85C (industrial, -I suffix) |
| Peripherals | High-Speed PWM, High-Speed ADC, Comparators |
| Production Status | In Production |
| Target Application Family | Digital SMPS / power conversion (GS series) |
| Debug/Programming | ICSP via PGECx/PGEDx pairs |
| 安装类型 | Surface Mount |
DSPIC33FJ64GS406-I/MR 64-vqfn (9x9 mm), surface mount 引脚配置指南
DSPIC33FJ64GS406-I/MR（64-vqfn (9x9 mm), surface mount 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： DSPIC33FJ64GS406-I/MR.
请参阅 数据手册 以查看完整引脚配置。
典型应用
DSPIC33FJ64GS406-I/MR 适用于 6 应用s: Interleaved Power Factor Correction (PFC), Digital AC-to-DC and DC-to-DC Converter Control, Uninterruptible Power Supplies (UPS), Solar Micro-Inverters and Renewable Energy Conversion, Industrial Power Supplies and Battery Chargers, LED Drivers and Electronic Ballasts.
Interleaved Power Factor Correction (PFC)
The DSPIC33FJ64GS406-I/MR is a proven fit for interleaved PFC front ends: Microchip ships a dedicated Interleaved PFC reference design built on this controller that accepts universal AC input voltage and produces a single high-voltage DC output up to 350W. The high-speed PWM module generates the interleaved phase-shifted switching signals while the high-speed ADC samples inductor current synchronized to each PWM cycle, allowing average-current-mode compensation to execute within one switching period at 50 MIPS. The on-chip comparators provide hardware cycle-by-cycle overcurrent protection without CPU intervention. This architecture eliminates the separate analog control chip used in traditional PFC designs and lets firmware adapt compensation gains across the universal input range of 90-264 VAC, improving both efficiency and hold-up performance in server and telecom power supplies.
推荐
Digital AC-to-DC and DC-to-DC Converter Control
According to Microchip's product page, the GS family explicitly targets AC-to-DC and DC-to-DC converter applications, and the 64GS406 implements multi-loop control (outer voltage loop plus inner current loop) in firmware. With 64KB flash there is room for topology-specific control laws - buck, boost, full-bridge, LLC - plus fault logging and digital communication. The high-speed PWM supports complementary outputs with dead-time insertion and duty-cycle updates per cycle, while the high-speed ADC synchronized to the PWM avoids switching-noise corruption of sampled currents. Running at 50 MIPS, the 16-bit DSP core executes PI compensators with deterministic cycle counts, which is essential for stable loop dynamics. Digital control also enables soft-start shaping, adaptive dead-time efficiency optimization, and telemetry reporting that analog controllers cannot offer.
推荐
Uninterruptible Power Supplies (UPS)
Microchip lists uninterruptible power supplies as a core GS-family application, and the DSPIC33FJ64GS406-I/MR handles the multiple simultaneous control loops a UPS demands: battery charger regulation, inverter sinusoidal output synthesis, and static-transfer switching. The 64KB flash accommodates sine lookup tables, phase-locked loop tracking of grid frequency, and battery-management state-of-charge algorithms alongside the control code. High-speed PWM generates the SPWM inverter waveform while synchronized ADC sampling captures output voltage and battery current for each control cycle at up to 50 MIPS execution throughput. On-chip comparators trip hardware limits for inverter overcurrent in microseconds, faster than any software interrupt path, protecting downstream MOSFETs during transfer events or output shorts.
推荐
Solar Micro-Inverters and Renewable Energy Conversion
The 64GS406 suits panel-level power conversion where a single controller runs maximum-power-point-tracking (MPPT) plus the DC-AC inverter control loop. The high-speed ADC can sample panel voltage/current and grid-side feedback within the same switching period, letting the 50 MIPS DSP core execute the MPPT perturb-and-observe or incremental-conductance algorithm while simultaneously closing the inverter current loop with THD-conscious SPWM generation. The 64KB flash holds grid-compliance firmware, anti-islanding detection, and communication routines. Because all power-conversion peripherals are on-chip, board area is minimized - a critical metric for micro-inverters mounted directly behind photovoltaic modules, and the industrial -40C to +85C rating covers rooftop thermal extremes.
推荐
Industrial Power Supplies and Battery Chargers
Industrial battery chargers and OEM power supplies benefit from the deterministic digital control of the DSPIC33FJ64GS406-I/MR: charging profiles (CC-CV, taper, temperature-derated) are firmware rather than fixed analog behavior, and the 64KB flash leaves room for protocol stacks (CAN/UART-based telemetry) alongside control loops. The high-speed PWM with per-cycle current limiting via on-chip comparators provides the safety envelope required around lithium chemistries, while synchronized ADC sampling supports coulomb-counting accuracy. Operating from -40C to +85C, the industrial -I rating fits factory-floor environments. Digital implementation also allows field firmware updates to adapt chargers to new battery types without hardware changes, a significant lifecycle advantage over hardwired analog charger controllers.
推荐
LED Drivers and Electronic Ballasts
High-power LED lighting and legacy electronic ballast designs map naturally onto the GS406 peripheral set: the high-speed PWM drives the switching stage with dimming resolution controlled in firmware, while the high-speed ADC and comparators enforce per-cycle current limits protecting the LED string. Digital dimming curves (0-10V, DALI-style profiles via UART) coexist with the control loop in the 64KB flash. The 50 MIPS DSP throughput supports constant-current loops at switching frequencies into the hundreds of kilohertz where analog controllers degrade. The industrial temperature range suits sealed outdoor luminaires, and digital control enables thermal foldback strategies that extend LED lifetime by trimming current as junction temperature rises rather than hard shutdown.
推荐
推荐产品汇总
工程参考数据： DSPIC33FJ64GS406-I/MR ——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 | DSPIC33FJ64GS406-E/MR | DSPIC33FJ32GS406-I/MR | DSPIC33FJ64GS606-I/MR | DSPIC33FJ64GS406-50I/MR |
|---|---|---|---|---|---|
| Package | 64-VQFN (9x9 mm) | 64-VQFN (9x9 mm) - same | 64-VQFN (9x9 mm) - same | 64-VQFN (9x9 mm) - same | 64-VQFN (9x9 mm) - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Flash Program Memory | 64 KB | 64 KB | 32 KB | 64 KB | 64 KB |
| Core Performance | 16-bit, 50 MIPS | 16-bit, 50 MIPS | 16-bit, 50 MIPS | 16-bit, 50 MIPS | 16-bit, 50 MIPS |
| Operating Temperature | -40C to +85C (industrial) | Extended temperature range (higher ceiling) | -40C to +85C (industrial) | -40C to +85C (industrial) | -40C to +85C (industrial) |
| Digital Power Peripherals | High-speed PWM, high-speed ADC, comparators | Identical (same die) | Identical | GS family set (allocation differs by pin count) | Identical |
关键差异点
- Full 64KB flash headroom for complex multi-loop firmware （对比 DSPIC33FJ32GS406-I/MR)
- Industrial temperature coverage at standard cost （对比 DSPIC33FJ64GS406-E/MR)
- Integrated digital-power peripheral set on one die （对比 Generic MCU solutions (e.g., PIC18 family in Site MPN list))
设计说明
ICSP routing discipline is called out explicitly in the Microchip data sheet: keep the trace length between the ICSP connector and the PGECx/PGEDx device pins as short as possible to preserve programming and debug signal integrity. Also remember that PGECx/PGEDx pairs must be used as matched sets - PGEC2 with PGED2, PGEC1 with PGED1, etc. Mixing pins from different pairs is a common cause of programming failures. Reserve an accessible 5-pin ICSP header (MCLR, VDD, GND, PGD, PGC) in your layout even if production programming is done at the bed-of-nails stage.
The 64-pin VQFN has multiple VDD and VSS pins, and the Microchip documentation notes that all VDD and VSS pins must be connected for proper operation - do not leave any supply pin floating even if the application draws little current. Place a 100 nF ceramic decoupling capacitor at each VDD/VSS pair as close to the pins as possible, plus a bulk capacitor (4.7-10 uF) near the device. In digital-power designs the controller shares ground proximity with high dv/dt switch nodes; use a solid ground plane and keep the ADC input routing away from gate-drive traces to preserve sampling accuracy.
Per the GS family errata-style note in Microchip documentation (80000489p), the alternate SPI1 slave-select function ASS1 on its shared pin does not work - do not rely on it; drive slave select with a standard GPIO instead. Additionally, budget flash carefully if considering the 32KB DSPIC33FJ32GS406 as a cost-down: leave at least 20-25% headroom in the 64KB part for field firmware updates before assuming a 32KB swap is safe. Finally, verify the temperature suffix on incoming reels (-I vs -E) since the packages are otherwise identical and visually indistinguishable.
合规信息
Compliance data for this specific ordering code was not present in the retrieved verified web data. Confirm via Microchip product page and distributor compliance documentation.
