DSPIC33EP128GS806T-I/PT - 16-bit 70MIPS DSC 128KB CAN | Microchip
料号： DSPIC33EP128GS806T-I/PT ✓ 量产中| 数量 | 单价 | 小计 |
|---|---|---|
| 1 | $6.18 | $6.18 |
| 10 | $5.62 | $56.20 |
| 100 | $5.05 | $505.00 |
| 500 | $4.6 | $2,300.00 |
| 1,000 | $4.25 | $4,250.00 |
DSPIC33EP128GS806T-I/PT 概述
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.
直接替换替代料： DSPIC33EP128GS806T-I/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： DSPIC33EP128GS806T-I/PT （相同外形与封装尺寸） ——差异在于 Core Architecture, Operating Temperature, PWM.
快速对比工具——选择替代料号进行并排对比：
DSPIC33EP128GS806-I/PT
✅ 直接替换✓ 有现货
$8.1 / 个
查看数据手册 →DSPIC33EP128GS806T-E/PT
✅ 直接替换📋 参考替代料（不在目录中）
DSPIC33EP128GS806T-E/PTVAO
✅ 直接替换📋 参考替代料（不在目录中）
DSPIC33EP64GS806T-I/PT
✅ 直接替换 ⚠️ 规格未核验📋 参考替代料（不在目录中）
DSPIC33EP256GS806T-I/PT
✅ 直接替换 ⚠️ 规格未核验📋 参考替代料（不在目录中）
DSPIC33EP128GS806T-I/PT 最大额定值与电气特性
| 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 |
| 工作温度 | -40C to +85C (I grade) |
| 封装 | 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 |
| 安装类型 | Surface Mount |
| RoHS 状态 | Compliant (RoHS) |
DSPIC33EP128GS806T-I/PT 64-tqfp (10x10 mm) 引脚配置指南
DSPIC33EP128GS806T-I/PT（64-tqfp (10x10 mm) 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： DSPIC33EP128GS806T-I/PT.
请参阅 数据手册 以查看完整引脚配置。
典型应用
DSPIC33EP128GS806T-I/PT 适用于 6 应用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.
推荐
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.
推荐
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.
推荐
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.
推荐
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.
推荐
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.
推荐
推荐产品汇总
工程参考数据： DSPIC33EP128GS806T-I/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 | 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 |
关键差异点
- Full 128 KB flash at GS80X price point （对比 DSPIC33EP64GS806T-I/PT)
- Headroom for growth without redesign （对比 DSPIC33EP256GS806T-I/PT)
- Extended-temperature option for harsh environments （对比 DSPIC33EP128GS806T-E/PT)
- Interconnected PWM/ADC/PGA analog front-end （对比 Generic PIC16 MCU alternatives (e.g., PIC16LF15376))
设计说明
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.
合规信息
RoHS-compliant, lead-free per Microchip standard commercial portfolio and distributor listings. Obtain REACH/halogen-free/conflict-minerals declarations from Microchip compliance documentation.