DSPIC33EP32GS505T-E/PT - 16-bit DSC 70MIPS Digital Power | Microchip
料号： DSPIC33EP32GS505T-E/PT ✓ 量产中| 数量 | 单价 | 小计 |
|---|---|---|
| 1 | $4.75 | $4.75 |
| 10 | $4.4 | $44.00 |
| 100 | $4.1 | $410.00 |
| 500 | $3.85 | $1,925.00 |
| 1,000 | $3.6 | $3,600.00 |
DSPIC33EP32GS505T-E/PT 概述
A Digital Signal Controller merges the computational throughput of a DSP with the peripheral integration and control-oriented architecture of a microcontroller, sitting in the product hierarchy between a general-purpose MCU and a dedicated DSP. The dsPIC33EP family executes an enhanced 16-bit core with DSP multiply-accumulate instructions, making it a power-management IC controller rather than a power device itself: it generates the control loops that drive converters, PFC stages and inverters.
Key differentiating features include an interconnected high-speed PWM module purpose-built for switching power supplies, on-chip high-speed analog comprising ADC inputs with an integrated Programmable Gain Amplifier (PGA) and analog comparators, and a 3.0 V to 3.6 V supply range. The extended -40C to +125C rating of the /E temperature suffix supports industrial and automotive-adjacent environments.
Architecturally, the interconnected PWM, ADC/PGA and comparator blocks are designed to operate together with minimal CPU intervention, enabling fast inner current loops in peak-current-mode or average-current-mode topologies. This interconnect offloads the 70 MIPS core, allowing a single controller to manage multiple power stages with deterministic latency.
Typical applications include interleaved power factor correction, as demonstrated in Microchip's 350 W universal-input Interleaved PFC reference design built on the dsPIC33EP32GS505, plus LLC and phase-shifted full-bridge DC-DC converters, solar micro-inverters, and digital lighting ballasts.
When designing, reserve the dedicated PWM and analog-capable pins early in layout, since the interconnected PWM routing is pin-position dependent; decouple the 3.3 V rail locally at each supply pin pair.
This page synthesizes distributor pricing, same-family drop-in options, and practical digital-power design notes not consolidated in the manufacturer datasheet.
直接替换替代料： DSPIC33EP32GS505T-E/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： DSPIC33EP32GS505T-E/PT （相同外形与封装尺寸） ——差异在于 Package, Product Family, Core, Functional Safety Support, Operating Temperature Range.
快速对比工具——选择替代料号进行并排对比：
DSPIC33EP32GS505T-I/PT
✅ 直接替换 ⚠️ 规格未核验✓ 有现货
$3.3 / 个
查看数据手册 →DSPIC33EP64GS505T-I/PT
✅ 直接替换 ⚠️ 规格未核验✓ 有现货
$4.85 / 个
查看数据手册 →DSPIC33EP16GS505T-I/PT
✅ 直接替换 ⚠️ 规格未核验📋 参考替代料（不在目录中）
DSPIC33EP32GS504T-I/PT
✅ 直接替换 ⚠️ 规格未核验✓ 有现货
$3.26 / 个
查看数据手册 →DSPIC33EP32GS505-E/PT
✅ 直接替换 ⚠️ 规格未核验📋 参考替代料（不在目录中）
DSPIC33EP32GS505T-E/PT 最大额定值与电气特性
| Core | dsPIC33EP 16-bit DSC core |
| Core Processing Performance | 70 MIPS |
| Flash Memory | 32 KB |
| Supply Voltage Range | 3 V to 3.6 V |
| 工作温度范围 | -40C to +125C (extended, /E suffix) |
| 封装 | 48-TQFP-EP (7x7 mm) with exposed pad |
| 安装类型 | Surface Mount |
| High-Speed PWM | Interconnected high-speed PWM for digital power |
| Analog Subsystem | High-speed ADC with Programmable Gain Amplifier (PGA) |
| Comparators | Analog comparators, interconnected with PWM |
| Product Family | dsPIC33EP32GS505 (Digital Power / SMPS DSC) |
| Programming Interface | ICSP (In-Circuit Serial Programming), MPLAB SNAP compatible |
| Debug Support | In-circuit debugging via MPLAB SNAP (2 I/O pins + reset) |
| Functional Safety Support | Listed as Functional Safety (FuSa) capable by Microchip/DigiKey |
DSPIC33EP32GS505T-E/PT 48-tqfp-ep (7x7 mm) with exposed pad 引脚配置指南
DSPIC33EP32GS505T-E/PT（48-tqfp-ep (7x7 mm) with exposed pad 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： DSPIC33EP32GS505T-E/PT.
请参阅 数据手册 以查看完整引脚配置。
典型应用
DSPIC33EP32GS505T-E/PT 适用于 6 应用s: Interleaved Power Factor Correction, LLC and Phase-Shifted Full-Bridge DC-DC Converters, Solar Micro-Inverters and String Optimizers, Digital Lighting Ballasts and LED Drivers, Industrial Motor Drives and Servo Power Stages, Embedded Digital Power Development and Prototyping.
Interleaved Power Factor Correction
The DSPIC33EP32GS505T-E/PT is the controller in Microchip's own Interleaved PFC reference design, which accepts universal AC input and produces a single high-voltage DC output up to 350 W. The interconnected high-speed PWM drives two interleaved boost phases with phase-shifted switching to cancel input ripple current, while the high-speed ADC with PGA samples inductor current at loop rates far above a general-purpose MCU's capability. On-chip comparators provide cycle-by-cycle overcurrent protection without core latency, keeping the 70 MIPS core free for the outer voltage loop, power-factor and RMS calculations, and system housekeeping.
推荐
LLC and Phase-Shifted Full-Bridge DC-DC Converters
For resonant LLC and phase-shifted full-bridge converters, the DSPIC33EP32GS505T-E/PT provides the frequency-modulation and phase-shift PWM resolution needed for soft-switching control. The dedicated high-speed PWM module generates complementary outputs with programmable dead time at nanosecond granularity, essential for preventing shoot-through in half-bridge legs. The ADC/PGA path samples output voltage and primary-side current for burst-mode and current-limit operation, and the extended -40C to +125C rating suits sealed telecom and server power supplies where ambient temperatures near the heatsink approach +85C, leaving the /E-grade headroom the /I-grade part lacks.
推荐
Solar Micro-Inverters and String Optimizers
Grid-tied solar micro-inverters require simultaneous MPPT computation, DC-AC modulation and grid synchronization - a workload matched to the DSPIC33EP32GS505T-E/PT architecture. The 70 MIPS 16-bit DSP core executes proportional-resonant or repetitive-control modulation algorithms with multiply-accumulate support, while interconnected PWM channels produce the multi-level switching patterns. High-speed ADC channels with PGA scale and sense grid current and panel voltage with minimal external signal conditioning. The 3 V to 3.6 V supply integrates cleanly with isolated bias rails, and 32 KB Flash accommodates MPPT, anti-islanding and grid-code firmware in one die.
推荐
Digital Lighting Ballasts and LED Drivers
High-intensity discharge ballasts and high-power LED drivers benefit from the DSPIC33EP32GS505T-E/PT's ability to run constant-current loops with fast PWM dimming. The interconnected comparator subsystem implements instantaneous overcurrent trip on LED string shorts, while the high-speed PWM supports both switching regulation and independent low-frequency dimming modulators from one controller. The extended temperature rating tolerates luminaire driver cavities that routinely exceed +85C, and the exposed-pad 48-TQFP dissipates controller heat into the driver PCB. 32 KB Flash holds dimming curves, DALI/0-10V interface code and protection state machines concurrently.
推荐
Industrial Motor Drives and Servo Power Stages
Small motor drives and servo power stages use the DSPIC33EP32GS505T-E/PT to close torque and speed loops around a three-phase inverter. The interconnected PWM generates center-aligned, dead-time-compensated six-step or SVPWM patterns, while the PGA-ADC path samples phase currents with programmable gain matched to shunt or current-transformer signal levels. DSP multiply-accumulate instructions accelerate field-oriented control transforms within the 70 MIPS budget. The -40C to +125C rating covers unventilated industrial cabinets, and ICSP programming via MPLAB SNAP enables in-system firmware updates on installed drives without removing the controller from the board.
推荐
Embedded Digital Power Development and Prototyping
The DSPIC33EP32GS505T-E/PT suits prototype digital-power platforms because Microchip's ecosystem around the dsPIC33EP32GS505 is mature: the MPLAB SNAP programmer connects over High-Speed USB 2.0 and an 8-pin SIL connector, using only two device I/O pins plus reset for in-circuit debugging and ICSP. Engineers can iterate control firmware on the same 48-TQFP footprint intended for production, then order the tape-and-reel part directly. The Functional Safety (FuSa) listing noted by Microchip and DigiKey additionally supports projects destined for safety-assessed industrial equipment, reducing documentation burden later in the development cycle.
推荐
推荐产品汇总
工程参考数据： DSPIC33EP32GS505T-E/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 | DSPIC33EP32GS505T-I/PT | DSPIC33EP64GS505T-I/PT | DSPIC33EP16GS505T-I/PT | DSPIC33EP32GS504T-I/PT |
|---|---|---|---|---|---|
| Package | 48-TQFP-EP (7x7 mm) | 48-TQFP-EP (7x7 mm) - same | 48-TQFP-EP (7x7 mm) - same | 48-TQFP-EP (7x7 mm) - same | 48-TQFP-EP (7x7 mm) - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Flash Memory | 32 KB | 32 KB | 64 KB | 16 KB | 32 KB |
| Core Performance | 70 MIPS (16-bit DSC) | 70 MIPS | 70 MIPS | 70 MIPS | 70 MIPS |
| 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 |
| Operating Temperature | -40C to +125C (/E) | -40C to +85C (/I) | -40C to +85C (/I) | -40C to +85C (/I) | -40C to +85C (/I) |
| Digital Power Peripherals (PWM/ADC-PGA/Comparators) | Full interconnected high-speed set | Full set (identical die) | Full set | Full set | Reduced PWM channel count |
关键差异点
- Extended +125C operation in the same footprint （对比 DSPIC33EP32GS505T-I/PT)
- Doubles program memory without redesign （对比 DSPIC33EP16GS505T-I/PT)
- Full interconnected PWM/PGA/comparator digital-power peripheral set （对比 DSPIC33EP32GS504T-I/PT)
设计说明
On the 48-TQFP-EP package the interconnected high-speed PWM pins, ADC/PGA input pins and comparator inputs occupy fixed pin positions, so assign your converter's gate-driver and current-sense nets to these dedicated pins first before routing general I/O. The exposed pad under the 7x7 mm TQFP should be soldered to a ground array of thermal vias - in digital-power layouts it serves both as the controller's thermal path and as a low-inductance analog ground reference for the ADC/PGA front end.
The DSPIC33EP32GS505T-E/PT requires a 3.0 V to 3.6 V supply. In digital-power converters the controller rail is often derived from a small auxiliary flyback or LDO off the high-voltage bus; ensure this rail stays within range during brownout and startup, since PWM glitches at undervoltage can cause bridge shoot-through. Place 0.1 uF ceramic decoupling at each VDD/VSS pin pair plus one bulk capacitor near the package, and reference AVDD to a quiet supply or ferrite-filtered branch for ADC accuracy.
Reserve the PGD/PGC pins for the MPLAB SNAP ICSP header (8-pin SIL per Microchip's development-tool documentation); routing them to driver circuitry without isolation resistors blocks in-circuit debugging. Also note the MIPS rating discrepancy between retail listings (60 MIPs on one DigiKey description, 70 MIPS on Mouser) - consult the family datasheet VDD-vs-performance table and set your clock configuration conservatively, since exceeding the documented operating envelope at low VDD is a common root cause of marginal-field failures.
合规信息
Compliance data was not explicitly stated in the retrieved web data. Microchip standard production parts are typically RoHS-compliant; verify on the official Microchip product page before procurement.
