DSPIC33EP32GS202-I/MM - 16-bit DSC, 32KB Flash, 70 MIPS | Microchip
料号： DSPIC33EP32GS202-I/MM ✓ 量产中| 数量 | 单价 | 小计 |
|---|---|---|
| 1 | $4.62 | $4.62 |
| 10 | $4.16 | $41.60 |
| 100 | $3.7 | $370.00 |
| 500 | $3.33 | $1,665.00 |
| 1,000 | $2.98 | $2,980.00 |
DSPIC33EP32GS202-I/MM 概述
A digital signal controller combines the computational capability of a digital signal processor with the peripheral set and ease of use of a microcontroller. Within the power-management hierarchy of an embedded system, the DSC sits above a plain MCU: it executes control-loop algorithms such as proportional-integral (PI) compensation, phase management, and fault handling in real time, which is essential in digital power conversion where loop bandwidths reach tens of kilohertz.
Key features include the 70 MIPS 16-bit dsPIC33E core executing DSP instructions (MAC, multiply-divide), 32KB self-programmable flash, a high-speed PWM module for power-converter topologies, and analog integration targeted at digital power. The -I suffix indicates the industrial temperature grade of -40C to +85C, and the 3.3V operating supply matches modern digital and mixed-signal rails.
Architecturally, the dsPIC33EP32GS202 belongs to the GS series optimized for digital power: Microchip states the family provides 16-bit microcontrollers and digital signal controllers with high-speed PWM and advanced analog for SMPS. The DSP engine and flexible clocking allow deterministic interrupt latency, which matters for time-critical current-mode control loops.
Typical applications include AC-DC and DC-DC converter control, power factor correction (PFC), and embedded power supplies. Microchip's 750W AC-DC reference design demonstrates a semi-bridgeless PFC topology followed by a peak-current-controlled zero-voltage-switching full-bridge converter using this family.
When designing, budget the 32KB flash carefully: digital power firmware with compensation tables and state machines can grow quickly, so verify code size before finalizing the BOM.
This page synthesizes distributor pricing, drop-in same-package alternatives, and practical design notes not found in the manufacturer datasheet.
直接替换替代料： DSPIC33EP32GS202-I/MM ——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： DSPIC33EP32GS202-I/MM （相同外形与封装尺寸） ——差异在于 Package, Operating Temperature, Operating Voltage, RoHS Status, Core.
快速对比工具——选择替代料号进行并排对比：
DSPIC33EP16GS202-I/M6
✅ 直接替换✓ 有现货
$2.1 / 个
查看数据手册 →DSPIC33EP16GS202-I/MM
✅ 直接替换 ⚠️ 规格未核验📋 参考替代料（不在目录中）
DSPIC33EP32GS202-I/M6
✅ 直接替换 ⚠️ 规格未核验✓ 有现货
$2.18 / 个
查看数据手册 →DSPIC33EP32GS202-I/MM 最大额定值与电气特性
| Core Architecture | 16-bit dsPIC33EP DSC |
| Maximum CPU Speed | 70 MIPS |
| Program Memory (Flash) | 32 KB |
| Operating Voltage | 3.3 V (VDD) |
| 封装 | 28-QFN-S (6x6 mm), exposed pad |
| 安装类型 | Surface Mount |
| 工作温度 | -40C to +85C (industrial, -I grade) |
| Product Family | dsPIC33EP32GS202 (digital power / SMPS) |
| Supply Voltage Range | 3.0 V to 3.6 V |
| RoHS 状态 | Compliant (ROHS, per JLCPCB listing) |
| Typical Application | Digital power, SMPS, PFC |
| 生命周期状态 | In Production (per Microchip product page) |
DSPIC33EP32GS202-I/MM 28-qfn-s (6x6 mm), exposed pad 引脚配置指南
DSPIC33EP32GS202-I/MM（28-qfn-s (6x6 mm), 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： DSPIC33EP32GS202-I/MM.
请参阅 数据手册 以查看完整引脚配置。
典型应用
DSPIC33EP32GS202-I/MM 适用于 6 应用s: Digital SMPS Control, Power Factor Correction (PFC), Embedded AC-DC Power Supplies, DC-DC Converters and Point-of-Load Regulation, Industrial Automation Power Stages, Digital Lighting and LED Driver Control.
Digital SMPS Control
The DSPIC33EP32GS202-I/MM is purpose-built for switched-mode power supply control: its 70 MIPS 16-bit core closes voltage- and current-mode loops with deterministic latency, while the high-speed PWM module generates gate drive timing for buck, boost, flyback, and full-bridge topologies. The fast ADC samples inductor current and output voltage within each switching cycle, enabling peak or average current-mode control implemented in firmware. Compared with an analog controller, the DSC offers programmable compensation, adaptive dead-time, soft-start profiling, and digital fault logging without hardware changes. Designers should reserve flash headroom in the 32KB memory for protection state machines and communication, and place PWM/ADC routing away from gate-drive noise on the 3.3V rail.
推荐
Power Factor Correction (PFC)
In active PFC stages the DSPIC33EP32GS202-I/MM executes the average-current control loop and input-voltage feedforward needed to keep power factor high across line conditions. Microchip's 750W AC-DC reference design demonstrates exactly this usage: a semi-bridgeless PFC topology controlled by the GS-series family, followed by a ZVS full-bridge main converter. The 70 MIPS DSP engine with single-cycle MAC instructions computes the sinusoidal current reference each switching cycle, while the high-speed ADC captures instantaneous line current for harmonic shaping. Firmware-based control also allows inrush management, brownout handling, and burst-mode operation at light load to meet efficiency regulations - all in software on the same silicon, reducing BOM changes between 115V and 230V product variants.
推荐
Embedded AC-DC Power Supplies
Server, telecom, and industrial embedded power supplies benefit from the DSPIC33EP32GS202-I/MM because digital control replaces multiple analog ICs with one programmable device. The controller sequences multiple rails, adjusts switching frequency, implements zero-voltage-switching timing for the full-bridge stage, and reports telemetry over a serial link to a host BMC or PLC. The -I industrial temperature rating of -40C to +85C covers fanless and high-ambient environments, and the exposed-pad QFN-28 6x6 mm package provides low thermal resistance and short analog traces on dense power boards. With 70 MIPS available, housekeeping tasks such as PMBus-style communication and protection supervision run alongside the real-time control loop on a single 3.3V-supplied DSC.
推荐
DC-DC Converters and Point-of-Load Regulation
For intermediate-bus and point-of-load converters, the DSPIC33EP32GS202-I/MM provides the fast control bandwidth that polyphase and multiphase designs require. Its high-speed PWM supports phase shifting and complementary outputs with programmable dead time, enabling synchronous buck and boost stages at hundreds of kilohertz. The on-chip ADC plus comparators implement cycle-by-cycle overcurrent limiting in hardware-assisted fashion, protecting power stages within a switching period rather than waiting for a software flag. Designers appreciate that firmware-based compensators can be retuned at runtime for different output voltages, letting one hardware platform serve 12V, 5V, and 3.3V product variants. The QFN-28 6x6 mm footprint keeps the controller physically adjacent to the power stage for short sensing loops.
推荐
Industrial Automation Power Stages
Industrial equipment that switches solenoids, heaters, LED drivers, or small motors uses the DSPIC33EP32GS202-I/MM to combine power conversion with control logic on one chip. The 70 MIPS core handles state machines and fieldbus communication while the digital-power PWM drives the power stage with precise timing; the -40C to +85C industrial grade suits factory floors and outdoor cabinets. Because control parameters live in flash, the same PCB can be re-characterized in firmware for different loads, cutting SKU proliferation. Diagnostic features - ADC monitoring of voltages, currents, and temperature - support predictive maintenance reporting to a PLC. The exposed-pad QFN-28 package also withstands the vibration and thermal cycling typical of industrial environments better than fine-pitch plastic packages of comparable pin count.
推荐
Digital Lighting and LED Driver Control
High-power LED drivers use the DSPIC33EP32GS202-I/MM to regulate LED current with dimming resolution and flicker-free behavior that analog controllers struggle to match. The high-speed PWM produces precise constant-current pulses and PWM dimming waveforms, while the ADC tracks output current and heatsink temperature for closed-loop thermal derating. Running at 70 MIPS, the controller can implement adaptive strategies - such as load-step handling in automotive or stage-lighting applications - and report diagnostics digitally. The 3.0-3.6V supply integrates cleanly with auxiliary bias rails derived from the converter itself, and the 28-pin QFN-S 6x6 mm exposed-pad package minimizes board area in compact driver modules. Firmware updates in the 32KB flash allow field retuning of color-mixing and dimming curves.
推荐
推荐产品汇总
工程参考数据： DSPIC33EP32GS202-I/MM ——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 | DSPIC33EP16GS202-I/M6 | DSPIC33EP16GS202-I/MM | DSPIC33EP32GS202-I/M6 |
|---|---|---|---|---|
| Package | 28-QFN-S (6x6 mm), exposed pad | 28-QFN-S (6x6 mm) - same | 28-QFN-S (6x6 mm) - same | 28-QFN-S (6x6 mm) - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Core / Max Speed | 16-bit dsPIC33EP, 70 MIPS | 16-bit dsPIC33EP, 70 MIPS | 16-bit dsPIC33EP, 70 MIPS | 16-bit dsPIC33EP, 70 MIPS |
| Flash Memory | 32 KB | 16 KB | 16 KB | 32 KB |
| Digital Power Peripherals | High-speed PWM, high-speed ADC, DAC | Same GS-series digital power set | Same GS-series digital power set | Identical |
| Operating Temperature | -40C to +85C (industrial) | -40C to +85C (industrial) | -40C to +85C (industrial) | -40C to +85C (industrial) |
| Pin-to-Pin Compatibility | Reference (28-QFN-S 6x6 mm) | Pin-to-pin compatible | Pin-to-pin compatible | Pin-to-pin compatible |
| RoHS | Compliant | Compliant | Compliant | Compliant |
| Lifecycle Status | In Production | In Production | In Production | In Production |
关键差异点
- Double the program memory within the same footprint （对比 DSPIC33EP16GS202-I/M6)
- Digital-power-optimized analog integration （对比 DSPIC33EP32GP502T-E/SO)
- Industrial temperature grade in a thermally efficient package （对比 DSPIC33EP16GS202-I/MM)
设计说明
Budget flash carefully: the DSPIC33EP32GS202-I/MM provides 32KB, which is generous for a single control loop but tight when adding communication stacks, bootloader, and compensation tables. Compile early with the free XC16 compiler and confirm code size before locking the BOM; if the project grows past roughly 24KB, migrate up the dsPIC33EP family rather than stripping protection firmware.
Place the exposed pad connection as a solid ground pour with multiple vias to the ground plane - this is both the thermal path and the primary return for the ADC and PWM. Keep analog sensing traces (current shunt, output voltage divider) short, guarded by ground, and route them away from gate-drive nodes. Decouple VDD with 0.1uF ceramic directly at the pin plus 4.7-10uF bulk per standard Microchip layout guidance.
Estimated: the 3.3V supply to this DSC draws on the order of tens of milliamps at 70 MIPS (core current scales with MIPs). Size the auxiliary bias regulator with margin and filter it separately from gate-driver supplies, because PWM switching transients coupling into VDD show up as jitter in the high-speed PWM timing - which directly degrades converter regulation and efficiency.
Use cycle-by-cycle current-limit comparators in hardware for overcurrent protection instead of relying on software-only ADC checks; the analog comparators react within one switching period while software response depends on interrupt latency. Configure ADC sampling to align with PWM trigger outputs so measurements are taken at consistent points in the switching cycle, minimizing ripple-induced measurement noise in the control loop.
合规信息
RoHS compliance stated by JLCPCB part listing. REACH, halogen-free, and conflict-minerals declarations not present in verified data - request from Microchip.
