DSPIC33EP128GS805-I/PT - 16-bit 70MIPS DSC, CAN | Microchip
部品番号: DSPIC33EP128GS805-I/PT ✓ 生産中| 数量 | 単価 | 小計 |
|---|---|---|
| 1 | $7.04 | $7.04 |
| 10 | $6.55 | $65.50 |
| 100 | $5.98 | $598.00 |
| 500 | $5.42 | $2,710.00 |
| 1,000 | $4.95 | $4,950.00 |
DSPIC33EP128GS805-I/PT 概要
A digital signal controller combines the computational throughput of a DSP core with the peripheral integration and deterministic behavior of a microcontroller. Within the power-management hierarchy, the dsPIC33EP GS family sits in the broader class of digital signal processors and 16-bit MCUs, purpose-built for closed-loop control of switch-mode power supplies and motor drives where PWM precision and fast ADC feedback loops are critical.
Key features include high-speed interconnected PWM modules with individual PWM timing and dedicated time bases, high-speed 10-bit and 12-bit ADC options with dual Sample-and-Hold circuits, integrated analog comparators and programmable gain amplifiers (PGA), and a CAN 2.0B controller for industrial networking. The 128 KB dual-partition Flash supports live update capability, allowing firmware upgrades while the application continues running.
The device executes a modified Harvard architecture instruction set at up to 70 MIPS from a 3.3V supply, with DSP multiply-accumulate instructions enabling fast control-loop mathematics. The interconnected peripheral fabric routes PWM, ADC and comparator signals internally, reducing latency for cycle-by-cycle current limiting in SMPS applications.
Typical applications include AC-to-DC converters, digital power supplies, multi-loop SMPS, battery chargers, power factor correction stages, and digital lighting ballasts. The CAN interface also suits automotive and industrial control nodes requiring robust communication.
Designers should note the -40C to +85C industrial operating range and program in-circuit via ICSP using tools such as MPLAB SNAP or ICD. The dual-partition Flash simplifies field firmware updates but requires careful linker configuration.
This page synthesizes distributor pricing, same-family drop-in alternatives, and practical design notes not consolidated in the manufacturer datasheet.
ドロップイン代替品: DSPIC33EP128GS805-I/PT — 同一パッケージでピン互換。PCBの作り直しが必要な異なるパッケージの部品は除外されています。
このシリーズのバリエーション
同一シリーズでドロップイン互換のモデル: DSPIC33EP128GS805-I/PT （同一形状・フットプリント） — 相違点: Operating Temperature, Package, ADC, Program Memory (Flash), Comparators.
クイック比較ツール — 並列比較する代替部品を選択:
DSPIC33EP128GS805-E/PT
✅ ドロップイン ⚠️ 仕様未検証📋 参考代替品（カタログ未掲載）
DSPIC33EP64GS505-I/PT
✅ ドロップイン ⚠️ 仕様未検証📋 参考代替品（カタログ未掲載）
DSPIC33EP32GS505-I/PT
✅ ドロップイン ⚠️ 仕様未検証✓ 在庫あり
$3.55 / 個
データシートを見る →DSPIC33EP64GS505-E/PT
✅ ドロップイン ⚠️ 仕様未検証✓ 在庫あり
$3.45 / 個
データシートを見る →DSPIC33EP128GS805-I/PT 最大定格＆電気的特性
| Core | 16-bit dsPIC DSC |
| Performance | 70 MIPS |
| Program Memory (Flash) | 128 KB |
| RAM | 8 KB |
| 電源電圧 | 3.3 V |
| 動作温度 | -40C to +85C |
| パッケージ | 48-TQFP (7x7 mm) |
| 実装タイプ | Surface Mount |
| Communication Interfaces | CAN, I2C, SPI, UART |
| I/O Count | 33 |
| PWM | High-speed interconnected PWM for digital power |
| ADC | High-speed ADC with PGA and comparators |
| Flash Partitioning | Dual-partition with live update |
| Packaging | Tray |
| Programming | ICSP (In-Circuit Serial Programming) |
| Target Applications | SMPS and digital power conversion |
DSPIC33EP128GS805-I/PT 48-tqfp (7x7 mm) ピン配置ガイド
DSPIC33EP128GS805-I/PT (48-tqfp (7x7 mm) パッケージ) のピン配置。 このデジタルICには、GPIO、通信インターフェース (UART、SPI、I2C)、および電源ピンが含まれています。代替ピン機能と設定オプションについては、メーカーのデータシートを参照してください。組み込みシステム設計とPCBレイアウトに不可欠です。
詳細なピン配置データはありません: DSPIC33EP128GS805-I/PT.
詳細は データシート をご参照ください。
主な用途
DSPIC33EP128GS805-I/PT の用途: 6 件s: AC-to-DC Converters, Multi-Loop SMPS and Digital Power Supplies, Power Factor Correction (PFC) Stages, Battery Chargers, Industrial Control Nodes with CAN, Digital Lighting and LED Driver Ballasts.
AC-to-DC Converters
The DSPIC33EP128GS805-I/PT is purpose-built for digitally controlled AC-to-DC conversion. Its interconnected high-speed PWM modules provide phase-shifted and complementary outputs with sub-nanosecond-level resolution control, while the dual Sample-and-Hold high-speed ADC simultaneously samples input line voltage and output current feedback. The integrated comparators enable cycle-by-cycle cycle current limiting directly in hardware without CPU intervention, protecting the power stage during transients. At 70 MIPS, the DSP core executes PI and predictive control loops for power factor correction and output regulation with margin to spare. The 3.3V, -40C to +85C industrial rating and CAN interface further suit telecom rectifier and industrial power supply platforms.
おすすめ
Multi-Loop SMPS and Digital Power Supplies
For multi-loop switch-mode power supplies, the GS805's peripheral interconnect routes ADC results and comparator outputs directly to PWM modules, achieving deterministic latency critical for voltage-mode and current-mode loops running at hundreds of kHz. The 128 KB dual-partition Flash supports live firmware update in fielded supplies that cannot tolerate downtime, and the 8 KB RAM buffers logging and telemetry data. Multiple PWM generators with individual time bases drive interleaved or multi-output topologies from one controller. Engineers typically use 10-12 bit ADC modes at high sample rates for loop feedback, reserving the PGA for shunt-based current sensing with small signals.
おすすめ
Power Factor Correction (PFC) Stages
In boost-type power factor correction front ends, the GS805 samples line current and bus voltage through its fast ADC and computes duty commands in DSP-accelerated control loops at 70 MIPS. The interconnected comparators implement fast overcurrent trip that blanks PWM outputs within the same switching cycle, protecting the MOSFET during line transients. The 33 available I/O support auxiliary functions such as relay control, inrush management and status signaling. The industrial -40C to +85C operating range suits continuous-duty commercial power hardware, and the CAN bus integrates the PFC stage into system-level power management and telemetry networks.
おすすめ
Battery Chargers
Battery charger designs benefit from the GS805's combination of precision analog and control peripherals. The ADC with programmable gain amplifier reads shunt current and pack voltage with sufficient resolution for CC/CV charge profiling, while the high-speed PWM drives buck or flyback charge stages with programmable dead time. Firmware-controlled charge algorithms, temperature foldback via NTC inputs, and fault logging in the 8 KB RAM are all implementable without external analog control ICs. The dual-partition Flash allows charge-profile firmware updates in the field for changing battery chemistries. Industrial temperature rating and CAN interface suit EVSE-adjacent and industrial charging equipment.
おすすめ
Industrial Control Nodes with CAN
Beyond power conversion, the GS805 serves as an industrial control node: its integrated CAN 2.0B controller, UART, SPI and I2C ports connect sensors, drives and supervisory PLCs, while the 70 MIPS DSP core runs local filtering and control algorithms. The 33 I/O lines drive actuators, relays and status LEDs directly. The -40C to +85C rating covers unconditioned factory environments, and ICSP programming via MPLAB SNAP supports in-field servicing. Dual-partition live update permits firmware rollout across a fleet of nodes without production downtime, a meaningful advantage over single-partition MCUs in installed industrial equipment.
おすすめ
Digital Lighting and LED Driver Ballasts
Digital lighting ballasts and high-power LED drivers use the GS805's complementary PWM outputs with programmable dead time to drive half-bridge and LLC stages efficiently. The fast ADC samples LED string current for closed-loop brightness regulation with low ripple, and comparators provide hardware short-circuit protection. Dimming protocols such as DALI run over UART, and DMX or PWM dimming interfaces use the abundant I/O. The 3.3V controller operates reliably in enclosed luminaires within the -40C to +85C range. Firmware-based control enables adaptive dimming curves and thermal derating without changing hardware, reducing bill-of-material complexity for lighting OEMs.
おすすめ
おすすめ製品の概要
エンジニアリング参考データ: DSPIC33EP128GS805-I/PT — 比較、設計ガイダンス、コンプライアンス情報。
選定ガイド
代替品との比較
| パラメータ | この製品 | DSPIC33EP128GS805-E/PT | DSPIC33EP64GS505-I/PT | DSPIC33EP32GS505-I/PT |
|---|---|---|---|---|
| Package | 48-TQFP (7x7 mm) | 48-TQFP (7x7 mm) - same | 48-TQFP (7x7 mm) - same | 48-TQFP (7x7 mm) - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Core Performance | 70 MIPS | 70 MIPS | 70 MIPS | 70 MIPS |
| Flash Memory | 128 KB | 128 KB | 64 KB | 32 KB |
| RAM | 8 KB | 8 KB | 8 KB | 8 KB |
| Supply Voltage | 3.3 V | 3.3 V | 3.3 V | 3.3 V |
| Operating Temperature | -40C to +85C | -40C to +125C | -40C to +85C | -40C to +85C |
| CAN Interface | Yes (CAN 2.0B) | Yes | Yes | Yes |
主な差別化要因
- Maximum Flash in the 48-pin GS family footprint （vs DSPIC33EP64GS505-I/PT)
- Industrial temperature grade standard （vs DSPIC33EP128GS805-E/PT)
- Largest program space for feature-rich digital power firmware （vs DSPIC33EP32GS505-I/PT)
設計ノート
The DSPIC33EP128GS805-I/PT runs from a 3.3V supply. In digital power supplies, provide a clean, well-decoupled VDD (0.1 uF ceramic at each VDD/VSS pin pair plus 4.7-10 uF bulk) and consider a ferrite bead separating VDD from noisy converter rails. Keep AVDD on its own filtered supply, since the high-speed ADC and PGA accuracy depend on low analog supply noise. Verify the exact VDD/AVDD pin assignments in the datasheet pin diagrams before layout.
Place the ICSP programming connector (MCLR, PGD, PGC, VDD, VSS) on every production board even if programming is done at final test; the MPLAB SNAP uses two device I/O pins plus reset through an 8-pin SIL interface per Microchip documentation. Route PWM outputs to gate drivers as short, matched traces and keep the fast ADC sense traces away from PWM switching nodes and gate-drive loops to preserve analog accuracy.
Dual-partition live update requires correct linker script and boot partition configuration; an incorrectly configured linker can brick the device or silently reduce usable Flash. If migrating from DSPIC33EP64GS505 or 32GS505, confirm code size fits the smaller Flash before drop-in substitution. Also confirm the -I grade (-40C to +85C) versus -E grade (-40C to +125C) against your thermal environment - the standard part is not rated for 125C ambient applications.
コンプライアンス情報
Compliance data was not present in the provided web data; verify RoHS/REACH status on the Microchip product page. Microchip standard products are typically lead-free/RoHS but this must be confirmed from manufacturer data.