DSPIC33EP128GS806T-I/PT - 16-bit 70MIPS DSC 128KB CAN | Microchip
MPN： DSPIC33EP128GS806T-I/PT ✓ 啟用中DSPIC33EP128GS806T-I/PT 概覽
A digital signal controller combines the computational throughput of a DSP with the peripheral set and ease of use of a microcontroller. Within the power-management hierarchy, the DSC sits at the top of the embedded control chain: it executes control-loop firmware (voltage-mode, current-mode, multi-loop), drives power stages through dedicated PWM peripherals, and closes feedback loops through on-chip ADC, PGA and analog comparators, replacing discrete analog control circuitry in switch-mode power supplies.
Key features include a 16-bit modified Harvard DSP engine with single-cycle MAC and 40-bit accumulators, interconnected high-speed PWM modules purpose-built for SMPS topologies, a 12-bit ADC with PGA front-end for direct small-signal current sensing, and a CAN module for industrial networking. Operation spans 3.0V to 3.6V over the industrial -40C to +85C temperature range.
Architecturally, the GS-series is Microchip's SMPS and digital power conversion family: the PWM, ADC and comparator blocks are interconnected so that fault responses and cycle-by-cycle current limiting occur in hardware with sub-microsecond latency, offloading deterministic protection from software.
Typical applications include AC-DC and DC-DC switch-mode power supplies, interleaved power factor correction (Microchip's 350 W interleaved PFC reference design uses this device), digital lighting ballasts, battery chargers, and solar micro-inverters.
Design consideration: the core requires a 3.0V to 3.6V supply, so provide a clean 3.3V LDO rail and follow the datasheet decoupling and VDD/VSS pairing guidance to keep ADC noise low.
This page synthesizes distributor pricing, drop-in alternatives, application guidance, and FAQ content not found in a single manufacturer datasheet.
直接替換替代品，適用於 DSPIC33EP128GS806T-I/PT — 相同封裝，腳位對腳位相容。需重新設計 PCB 的不同封裝零件不列入。
此系列的變體
與下列產品可直接替換的同系列型號： DSPIC33EP128GS806T-I/PT （相同外形與佔位） — 差異在於 Core Architecture, Operating Temperature, PWM.
DSPIC33EP128GS806-I/PT
✅ 直接替換聯絡詢價
查看資料表 →DSPIC33EP128GS806T-E/PT
✅ 直接替換📋 參考替代品（不在目錄中）
DSPIC33EP128GS806T-E/PTVAO
✅ 直接替換📋 參考替代品（不在目錄中）
DSPIC33EP64GS806T-I/PT
✅ 直接替換 ⚠️ 規格未經驗證📋 參考替代品（不在目錄中）
DSPIC33EP256GS806T-I/PT
✅ 直接替換 ⚠️ 規格未經驗證📋 參考替代品（不在目錄中）
DSPIC33EP128GS806T-I/PT 最大額定值與電氣特性
| Core Architecture | 16-bit dsPIC33EP DSC with DSP engine |
| Maximum CPU Speed | 70 MIPS |
| Program Memory (Flash) | 128 KB (43K x 24) |
| Data RAM | 8 KB |
| Operating Voltage | 3.0 V to 3.6 V |
| 工作溫度 | -40C to +85C (I grade) |
| 封裝 | 64-TQFP (10x10 mm) |
| Timers | 7 timers |
| DMA Channels | 4 |
| Serial Interfaces | 4 serial I/O ports (UART/SPI/I2C) |
| CAN | CAN 2.0B controller |
| ADC | 12-bit ADC with PGA and sample-and-hold |
| PWM | Interconnected high-speed PWM for SMPS/digital power |
| Comparators | On-chip analog comparators |
| Analog Outputs | DAC outputs |
| 安裝類型 | Surface Mount |
| RoHS 狀態 | Compliant (RoHS) |
DSPIC33EP128GS806T-I/PT 64-tqfp (10x10 mm) 腳位配置指南
DSPIC33EP128GS806T-I/PT（64-tqfp (10x10 mm) 封裝）的腳位配置。 此數位 IC 包含 GPIO、通訊介面（UART、SPI、I2C）與電源腳位。替代腳位功能與配置選項請參閱製造商資料表。對嵌入式系統設計與 PCB 佈局至關重要。
無詳細腳位定義資料： DSPIC33EP128GS806T-I/PT.
請參閱 資料表 以查看完整腳位配置。
典型應用
DSPIC33EP128GS806T-I/PT 適用於 6 應用s: AC-DC Switch-Mode Power Supplies, Interleaved Power Factor Correction, Digital Lighting Ballasts and LED Drivers, Battery Chargers and BMS Control, Industrial Motor Control and Automation, Solar Micro-Inverters and DC-DC Converters.
AC-DC Switch-Mode Power Supplies
The DSPIC33EP128GS806T-I/PT is purpose-built for digitally controlled AC-DC converters: its interconnected high-speed PWM generates complementary outputs with dead-time insertion for half-bridge and LLC topologies, while the 12-bit ADC with PGA reads shunt or transformer current signals directly without external gain stages. Control loops (voltage-mode or average current-mode) execute in firmware at tens of kHz update rates given the 70 MIPS core, and on-chip comparators provide cycle-by-cycle overcurrent protection faster than any software loop. Place the controller between the feedback divider and the power-stage gate drivers; the trade-off versus analog control is added firmware complexity in exchange for programmable sequencing, telemetry and adaptive compensation.
推薦
Interleaved Power Factor Correction
Microchip's interleaved PFC reference design uses the dsPIC33EP128GS806 to convert universal AC input to a single high-voltage DC output of up to 350 W. The device's multiple high-speed PWM channels drive two interleaved boost phases 180 degrees out of phase, reducing input ripple current, while the PGA-equipped ADC samples inductor currents and the bus voltage each switching cycle for average-current-mode PFC control. Firmware implements soft-start, brownout handling and output overvoltage protection with hardware comparator backup. The benefit of interleaving is lower input EMI filter size; the design consideration is careful current-sharing between phases, which the GS806's cycle-by-cycle per-phase current sensing addresses directly.
推薦
Digital Lighting Ballasts and LED Drivers
High-intensity discharge lamp ballasts and high-power LED drivers require precise current regulation with dimming control - a natural fit for the DSPIC33EP128GS806T-I/PT. Its high-speed PWM resolution maintains constant-current loops at high switching frequencies, the 12-bit ADC/PGA front-end senses LED string current with millivolt-level accuracy, and the on-chip DAC can generate dimming reference ramps in hardware. The CAN interface allows networked lighting control in industrial and architectural installations. Compared with fixed-function analog LED driver ICs, this DSC adds adaptive thermal derating, programmable fault behavior and DALI-over-CAN bridging at the cost of firmware development effort.
推薦
Battery Chargers and BMS Control
Multi-chemistry battery chargers need configurable charge profiles (CC/CV, temperature-qualified, terminated by current or time) - exactly the flexibility a firmware-based controller provides. The DSPIC33EP128GS806T-I/PT closes the charging loop with its ADC/PGA current sensing, drives the buck or flyback power stage through high-speed PWM with hardware dead-time, and protects the pack with comparator-based fast overcurrent and overvoltage trips. The CAN 2.0B controller reports state-of-charge and health data in vehicle and industrial packs. A practical design note: use the on-chip DAC for precise CV setpoints rather than PWM-DAC filtering, improving constant-voltage regulation accuracy.
推薦
Industrial Motor Control and Automation
With 70 MIPS of DSP throughput (single-cycle MAC, 40-bit accumulators), the DSPIC33EP128GS806T-I/PT executes field-oriented control or sensorless back-EMF observers for BLDC/PMSM drives, while its high-speed PWM with complementary outputs and hardware fault inputs safely drives three-phase inverters. Four DMA channels stream ADC results to RAM without CPU intervention, sustaining deterministic loop timing under CAN communication loads. Seven timers handle encoder counting and task scheduling. In factory automation nodes it consolidates motor drive, CAN networking and housekeeping I/O in one 64-TQFP chip, reducing BOM count versus a discrete MCU plus gate-driver-controller split.
推薦
Solar Micro-Inverters and DC-DC Converters
Panel-level power electronics demand MPPT algorithms, grid-synchronized current shaping and robust protection - all firmware tasks well matched to this DSC's DSP engine and interconnected PWM/ADC hardware. The 12-bit ADC samples panel voltage/current and grid waveforms each cycle; 70 MIPS leaves headroom for MPPT perturb-and-observe plus control-loop mathematics; comparators provide hardware overcurrent shutdown. For isolated DC-DC stages (boost, LLC), the PWM module's phase-shift and complementary modes with dead-time control fit resonant topologies directly. Flash-based firmware enables field updates of grid-code compliance tables, an advantage over fixed-function controller ASICs.
推薦
推薦產品摘要
工程參考資料，適用於 DSPIC33EP128GS806T-I/PT — 比較、設計指引及合規資訊。
選型指南
與替代品比較
| 參數 | 本產品 | DSPIC33EP128GS806-I/PT | DSPIC33EP128GS806T-E/PT | DSPIC33EP64GS806T-I/PT | DSPIC33EP256GS806T-I/PT |
|---|---|---|---|---|---|
| Package | 64-TQFP (10x10 mm) | 64-TQFP (10x10 mm) - same | 64-TQFP (10x10 mm) - same | 64-TQFP (10x10 mm) - same | 64-TQFP (10x10 mm) - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| CPU Speed | 70 MIPS | 70 MIPS | 70 MIPS | 70 MIPS | 70 MIPS |
| Flash Memory | 128 KB (43K x 24) | 128 KB | 128 KB | 64 KB | 256 KB |
| Operating Temperature | -40C to +85C (I grade) | -40C to +85C | -40C to +125C (E grade) | -40C to +85C | -40C to +85C |
| CAN | Yes (CAN 2.0B) | Yes | Yes | Yes | Yes |
| Packaging Format | Tape & Reel | Tray | Tape & Reel | Tape & Reel | Tape & Reel |
主要差異化特點
- Full 128 KB flash at GS80X price point (對比DSPIC33EP64GS806T-I/PT)
- Headroom for growth without redesign (對比DSPIC33EP256GS806T-I/PT)
- Extended-temperature option for harsh environments (對比DSPIC33EP128GS806T-E/PT)
- Interconnected PWM/ADC/PGA analog front-end (對比Generic PIC16 MCU alternatives (e.g., PIC16LF15376))
設計說明
Power the DSC from a clean 3.0V to 3.6V rail - nominally 3.3V from a low-noise LDO rather than a switching converter, since the 12-bit ADC and PGA front-end used for current-sense feedback are sensitive to supply ripple. Decouple every VDD/VSS pair with 0.1 uF ceramics placed within 2 mm of the pins, plus bulk 10 uF per the family datasheet. Estimated: at 70 MIPS the core draws tens of mA; budget regulator headroom accordingly and confirm exact IDD from the datasheet electrical characteristics table.
In digital power layouts, keep the PWM outputs' gate-drive loops short and route the current-sense (shunt) inputs differentially with a Kelvin connection to the shunt resistor. Isolate the analog ground island feeding VREF+/AVSS from the power-stage ground return, joining them at a single point near the bulk capacitor. The interconnected PWM/comparator fault path is only as fast as your layout - keep the fault-input traces away from switch-node dv/dt aggressors to avoid spurious trips.
Do not substitute the -I (industrial, +85C) part into designs with ambient temperatures above 85C; use the -E grade (+125C) variant instead - both are pin-compatible in the 64-TQFP. Also note the T suffix is packaging (tape-and-reel), not a performance grade. Configure configuration fuses (oscillator, watchdog, PWM pins) carefully at first flash: an incorrect oscillator setting can brick access on an assembled board, so enable clock-switching/fail-safe clock in early prototypes.
The high-speed PWM edges couple strongly into neighboring traces; keep ADC sense lines on an inner layer with ground shielding and add RC anti-alias filters (e.g., 1 kohm / 1 nF as a starting point) sized per your switching frequency before the ADC pins. Verify with the Microchip digital power reference designs (MA330043 PIM, interleaved PFC), which demonstrate proven ADC/PWM timing and filtering practices for this exact device family.
合規資訊
RoHS-compliant, lead-free per Microchip standard commercial portfolio and distributor listings. Obtain REACH/halogen-free/conflict-minerals declarations from Microchip compliance documentation.