DSPIC33EP32GS504T-I/ML - 16-bit 70 MIPS DSC 32KB | Microchip
MPN: DSPIC33EP32GS504T-I/ML ✓ Hoạt độngDSPIC33EP32GS504T-I/ML Tóm tắt
A digital signal controller combines the compute throughput of a DSP with the peripheral integration and control-oriented architecture of a microcontroller. Within the power-management hierarchy, the dsPIC33EPXXGS50X family sits at the intersection of digital signal processors and SMPS control ICs, replacing analog control loops with high-resolution digital feedback for switch-mode power supplies.
Key features include the interconnected high-speed PWM module designed for multi-loop digital power conversion, a high-speed 12-bit ADC with multiple sample-and-hold circuits, on-chip comparators and a programmable gain amplifier (PGA), plus I2C, SPI, IrDA, UART and USART serial interfaces. The device provides 35 I/O pins, brown-out detect/reset, power-on reset and a watchdog timer for robust standalone operation.
Technically, the dsPIC33EP core executes an enhanced instruction set with DSP multiply-accumulate instructions, enabling tight control-loop execution at fixed intervals. According to the dsPIC33EPXXGS50X family datasheet (70005127d), the interconnected PWM, ADC and comparator blocks can trigger each other without CPU intervention, minimizing loop latency in peak-current-mode converters.
Typical applications include interleaved power factor correction (PFC) up to 350W, 750W semi-bridgeless PFC plus ZVS full-bridge AC-DC converters, LLC resonant supplies, solar micro-inverters, and battery chargers, where deterministic digital control at high PWM resolution is required.
Design consideration: the 3V-3.6V supply range requires a clean 3.3V rail; decouple VDD/VDDCORE per the datasheet and verify the 44-QFN exposed pad is well soldered to a ground plane for thermal and EMI performance.
This page synthesizes verified distributor data, drop-in alternatives, pricing tiers, and digital-power design notes not found on the manufacturer product page alone.
Bộ thay thế dễ dàng lắp đặt cho DSPIC33EP32GS504T-I/ML — cùng gói, chân-to-chân tương thích. Các bộ phận yêu cầu hàn PCB bị loại trừ.
Các biến thể trong loạt này
Các mẫu cùng loạt có thể lắp đặt dễ dàng tương thích với DSPIC33EP32GS504T-I/ML (cùng hình factor và footprint) — khác nhau ở Operating Temperature, Package, Maximum CPU Speed, Application Focus, Core Architecture.
DSPIC33EP32GS504-I/ML
✅ Drop-In ⚠️ Thông số chưa được xác minhLiên hệ để biết giá
Xem tài liệu →DSPIC33EP32GS504T-E/ML
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →DSPIC33EP16GS504-I/ML
✅ Drop-In ⚠️ Thông số chưa được xác minh📋 Tham chiếu thay thế (không có trong danh mục)
DSPIC33EP64GS504-I/ML
✅ Drop-In ⚠️ Thông số chưa được xác minhLiên hệ để biết giá
Xem tài liệu →DSPIC33EP32GS504T-I/ML Tỷ lệ tối đa & tính chất điện
| Core Architecture | 16-bit dsPIC DSC |
| Maximum CPU Speed | 70 MIPS |
| Program Memory (FLASH) | 32KB (32K x 8) |
| Supply Voltage Range | 3 V to 3.6 V |
| Hộp | 44-QFN (8x8 mm), exposed pad |
| Number of I/Os | 35 |
| Nhiệt độ hoạt động | -40C to +85C |
| Communication Interfaces | I2C, SPI, IrDA, UART, USART |
| Peripherals | Brown-out Detect/Reset, POR, PWM, WDT |
| PWM Module | Interconnected high-speed PWM for digital power |
| ADC | High-speed on-chip ADC |
| Analog Features | Comparators, PGA |
| Kiểu lắp đặt | Surface Mount |
| Family | dsPIC33EP 33EP (Functional Safety FuSa capable) |
| Application Focus | Digital Power / SMPS |
| Trạng thái RoHS | Compliant |
| Packaging | Tape and Reel (T suffix) |
Hướng dẫn cấu hình chân DSPIC33EP32GS504T-I/ML 44-qfn (8x8 mm), exposed pad
Cấu hình chân cho DSPIC33EP32GS504T-I/ML (44-qfn (8x8 mm), exposed pad gói). IC số này bao gồm chân GPIO, giao diện truyền thông (UART, SPI, I2C) và chân nguồn. Tham khảo tài liệu thông số kỹ thuật của nhà sản xuất để biết các chức năng chân thay thế và tùy chọn cấu hình. Cực kỳ quan trọng cho thiết kế hệ thống tích hợp và lập trình PCB.
Không có dữ liệu chân cụ thể sẵn có cho DSPIC33EP32GS504T-I/ML.
Tham khảo: tài liệu kỹ thuật cho cấu hình chân đầy đủ.
Ứng dụng tiêu biểu
DSPIC33EP32GS504T-I/ML phù hợp cho 6 Áp dụngs: Interleaved Power Factor Correction, ZVS Full-Bridge AC-DC Converters, LLC Resonant Power Supplies, Digital LED Drivers, Solar Micro-Inverters and Chargers, Battery Charging Systems.
Interleaved Power Factor Correction
The DSPIC33EP32GS504T-I/ML fits interleaved PFC because its interconnected high-speed PWM can phase-shift multiple PWM legs and its high-speed ADC samples inductor currents at precise instants synchronized to the PWM, which is exactly what two-phase current sharing requires. Microchip's official Interleaved PFC reference design, built on this SMPS dsPIC family, operates from universal AC input and delivers up to 350W of regulated high-voltage DC. The 70 MIPS DSP core executes the average-current-mode compensator and input feedforward within tight loop deadlines, while on-chip comparators provide cycle-by-cycle overcurrent protection without CPU intervention. Placed as the sole controller on the PFC board, the DSC replaces analog control ICs and adds programmable protection, inrush management and digital telemetry. The trade-off versus a fixed-function PFC controller is firmware development effort, repaid by flexibility across power levels and topologies.
Được đề xuất
ZVS Full-Bridge AC-DC Converters
Microchip's 750W AC-DC reference design demonstrates a semi-bridgeless PFC stage followed by a peak-current-controlled zero-voltage-switching full-bridge converter, with digital slope compensation implemented on this dsPIC SMPS digital signal controller family. The DSPIC33EP32GS504T-I/ML suits this role because its interconnected high-speed PWM generates complementary outputs with programmable dead time for the full-bridge legs, while the fast ADC captures the current-transformer peak signal each switching cycle for the inner current loop. Digital slope compensation is a simple firmware modification, impossible with most analog controllers. The 44-QFN exposed-pad package provides low-inductance grounding for gate-drive signals, important at the switching frequencies used in server and telecom front ends. Compared with a DSP-plus-FPGA solution, this single-chip approach reduces BOM cost and board area while retaining full digital control of efficiency-critical ZVS timing.
Được đề xuất
LLC Resonant Power Supplies
LLC resonant converters demand precise, low-jitter frequency control of two complementary gate signals plus burst mode and capacitive-protection logic - requirements met directly by the DSPIC33EP32GS504T-I/ML's interconnected high-speed PWM module, which was designed for common multi-loop digital switch-mode power supplies. The controller's ADC samples the resonant tank current and output voltage asynchronously, and firmware adjusts the switching frequency at 70 MIPS, giving sub-cycle response for burst-mode entry and light-load efficiency management. On-chip comparators implement capacitive-mode protection thresholds in hardware, an important safety feature when the resonant capacitor charges under fault conditions. Using a digital controller here allows adaptive dead-time optimization across line and load, typically improving efficiency by 1-2 percentage points versus fixed dead-time analog control, at the cost of requiring resonant-tank characterization during firmware development.
Được đề xuất
Digital LED Drivers
High-power LED drivers for stage lighting, street lighting and horticulture benefit from the DSPIC33EP32GS504T-I/ML's combination of high-resolution dimming PWM, fast current-loop ADC sampling and serial interfaces (I2C, UART) for DALI-style communication and addressing. The 35 I/O pins accommodate multiple LED strings, thermal-sensor inputs and user interfaces on a single controller. The 70 MIPS core can run switching regulation and communication protocols concurrently without timing conflicts, and the on-chip watchdog plus brown-out reset ensure the driver fails safely into a defined dimming state. Digital control enables accurate current matching between strings (better than 1% with calibrated firmware) and smooth high-ratio dimming without the flicker artifacts common in analog dimming. Designers should budget program memory carefully, as combined regulation, communication and color-mixing firmware approaches the 32KB limit of this GS504 variant.
Được đề xuất
Solar Micro-Inverters and Chargers
In solar micro-inverters and MPPT battery chargers, the DSPIC33EP32GS504T-I/ML performs maximum-power-point tracking, grid-current shaping and safety monitoring in one device. Its high-speed ADC digitizes panel voltage/current and grid waveforms, while the interconnected high-speed PWM drives the power stage with grid-synchronized phase references generated in firmware at 70 MIPS. The DSP multiply-accumulate instructions accelerate MPPT algorithms such as incremental conductance, and the on-chip comparators and brown-out detection provide hardware-level protection for grid faults and panel anomalies. The industrial -40C to +85C rating matches outdoor enclosure environments. Microchip's GS50X family positioning for digital power conversion means reference code exists for grid-tie topologies, reducing certification risk. The main design consideration is firmware complexity: MPPT, anti-islanding and communication together may push toward the 64KB family variant.
Được đề xuất
Battery Charging Systems
Smart multi-chemistry battery chargers use the DSPIC33EP32GS504T-I/ML to run CC/CV charging profiles, temperature-qualified charging via thermistor inputs on the ADC, and termination logic in firmware. The high-speed PWM with cycle-by-cycle current limiting handles the buck or buck-boost power stage, while the 35 I/O pins drive status LEDs, relays and fault indicators. UART/USART connectivity supports communication with a host or the pack management IC over SMBus-style protocols on the I2C port. Digital control allows per-chemistry charge curves, capacity learning and adaptive termination that analog charger ICs cannot match, improving charge speed while protecting cell life. The industrial temperature range and watchdog timer support automotive-adjacent and industrial chargers left unattended. Firmware footprint for a complete charger with communication typically fits within the 32KB FLASH of this part, making it a cost-effective single-chip solution.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho DSPIC33EP32GS504T-I/ML — so sánh, hướng dẫn thiết kế và thông tin tuân thủ.
Hướng dẫn chọn lựa
So sánh với các sản phẩm thay thế
| Tham số | Sản phẩm này | DSPIC33EP32GS504-I/ML | DSPIC33EP32GS504T-E/ML | DSPIC33EP16GS504-I/ML | DSPIC33EP64GS504-I/ML |
|---|---|---|---|---|---|
| Package | 44-QFN (8x8 mm), exposed pad | 44-QFN (8x8 mm) - same | 44-QFN (8x8 mm) - same | 44-QFN (8x8 mm) - same | 44-QFN (8x8 mm) - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Program Memory (FLASH) | 32KB (32K x 8) | 32KB | 32KB | 16KB (-50%) | 64KB (+100%) |
| CPU Performance | 70 MIPS, 16-bit dsPIC | 70 MIPS | 70 MIPS | 70 MIPS | 70 MIPS |
| Operating Temperature | -40C to +85C (industrial) | -40C to +85C | Extended grade (/E/) | -40C to +85C | -40C to +85C |
| Supply Voltage | 3 V to 3.6 V | 3 V to 3.6 V | 3 V to 3.6 V | 3 V to 3.6 V | 3 V to 3.6 V |
| I/O Count | 35 | 35 | 35 | 35 | 35 |
| Interfaces | I2C, SPI, IrDA, UART, USART | I2C, SPI, IrDA, UART, USART | I2C, SPI, IrDA, UART, USART | I2C, SPI, IrDA, UART, USART | I2C, SPI, IrDA, UART, USART |
Bảo phân biệt quan trọng
- Digital-power-optimized interconnected peripherals (vsDSPIC33EP32GP504T-I/PT)
- Balanced 32KB memory at lowest GS504 cost tier (vsDSPIC33EP64GS504-I/ML)
- Industrial temperature coverage (vsDSPIC33EP32GS504T-E/ML)
Ghi chú thiết kế
The DSPIC33EP32GS504T-I/ML requires a 3V to 3.6V supply with nominal 3.3V. In digital-power designs, the controller rail shares a board with a switching power stage; route the 3.3V regulator away from gate-drive loops and provide separate RC filtering to AVDD for the ADC. Decouple VDD and VDDCORE per the family datasheet with local 0.1uF ceramics plus bulk capacitance, and verify the on-chip core regulator sequencing requirements at power-up. Brown-out reset configuration should be enabled in config bits so PWM outputs force to a safe state during supply dips.
The exposed pad on the 44-QFN (8x8 mm) package must be soldered to a solid ground plane with an array of thermal vias. Beyond thermal benefits, the exposed pad is the main low-inductance ground return for the fast PWM gate-drive transitions and ADC reference; a floating or poorly reflowed pad is a common cause of ADC noise and intermittent glitches in dsPIC33EP designs. Use a solder-paste stencil aperture pattern of roughly 50-70% coverage under the pad to avoid voiding and component floating.
Peripheral pin selection (PPS) on dsPIC33EP devices lets UART, SPI and I2C map to many pins, but analog-capable pins default to analog mode at reset, so digital functions silently fail if ANSEL-equivalent configuration is skipped. Configure the ADC sampling triggers from the PWM module (interconnected mode) rather than software timers for deterministic loop timing in SMPS control. Also note the 32KB FLASH includes the config-word and bootloader regions; budget firmware accordingly or move to the 64KB DSPIC33EP64GS504 variant.
Thông tin tuân thủ
RoHS compliance confirmed via verified distributor data (datasheets.com). REACH, halogen-free and conflict-minerals declarations not present in retrieved data - request Microchip compliance certificates.