DSPIC33FJ16GS402-I/SO - 16-bit DSC, 40 MIPS, 16KB Flash SMPS MCU | Microchip
MPN: DSPIC33FJ16GS402-I/SO ✓ فعالDSPIC33FJ16GS402-I/SO جائزہ
A Digital Signal Controller is a hybrid device that combines a microcontroller's deterministic control peripherals with a digital signal processor's mathematical throughput. The dsPIC33F family sits at the hierarchy: DSC -> DSP-enhanced MCU -> microcontroller -> embedded processor. By merging both roles into a single core, designers can sample high-frequency signals, run control loops, and drive power-stage MOSFETs from a single chip, reducing BOM cost and PCB area.
Key features include dedicated high-speed PWM modules with duty-cycle resolution suitable for digital power topologies, on-chip high-speed 10-bit ADCs, dual analog comparators with PWM-level outputs for cycle-by-cycle current limiting, and a 4-channel DMA engine that offloads data movement from the CPU. The device also provides a configurable 8 MHz internal oscillator, JTAG/ICD debugging, and multiple communication peripherals (UART, SPI, I2C) for housekeeping and telemetry.
The 16-bit modified Harvard architecture separates program and data buses and supports single-cycle MAC operations, enabling tightly tuned digital compensator loops. Combined with 16 KB of self-programmable flash and 2 KB of RAM, the controller can host state machines, look-up tables for soft-start and protection curves, and run real-time PID or average-current-mode control without external logic.
Typical applications include AC-to-DC converters, isolated and non-isolated DC-to-DC converters, power factor correction (PFC) stages, uninterruptible power supplies (UPS), photovoltaic micro-inverters, and digital lighting ballasts. On-board peripherals such as the high-speed PWM and comparator make it drop-in suitable for multi-loop peak-current-mode control.
Designers should evaluate the 28-pin SOIC variant versus the 28-pin QFN (MM) and 28-pin SPDIP (SP) options based on thermal dissipation and assembly process. For designs requiring more PWM channels or additional ADC channels, the larger-pin-count siblings (dsPIC33FJ16GS404, GS502, GS504) maintain software compatibility while offering expanded peripherals.
This page synthesizes distributor stock, drop-in package equivalents, and practical SMPS design notes that are not consolidated in the manufacturer datasheet, giving engineers a faster path to part selection and PCB layout decisions.
کے لیے ڈراپ اِن متبادل DSPIC33FJ16GS402-I/SO — یکساں پیکیج، پن سے پن مطابقت پذیر۔ مختلف پیکیج والے پرزے جن کے لیے PCB دوبارہ کام درکار ہو، شامل نہیں ہیں۔
اس سیریز میں مختلف ورژن
اسی سیریز کے ماڈلز جو ڈراپ اِن مطابقت رکھتے ہیں DSPIC33FJ16GS402-I/SO (یکساں فارم فیکٹر اور فٹ پرنٹ) — میں مختلف Analog Comparators, Operating Temperature, Package, ADC, Core Architecture.
DSPIC33FJ16GS402-I/MM
✅ ڈراپ-اِنقیمت کے لیے رابطہ کریں
ڈیٹا شیٹ دیکھیں →DSPIC33FJ16GS402-E/SO
✅ ڈراپ-اِنقیمت کے لیے رابطہ کریں
ڈیٹا شیٹ دیکھیں →DSPIC33FJ16GS402-H/SP
✅ ڈراپ-اِنقیمت کے لیے رابطہ کریں
ڈیٹا شیٹ دیکھیں →DSPIC33FJ16GS402-50I/SP
✅ ڈراپ-اِنقیمت کے لیے رابطہ کریں
ڈیٹا شیٹ دیکھیں →DSPIC33FJ16GS404-I/SO
✅ ڈراپ-اِن📋 حوالہ جاتی متبادل (کیٹلاگ میں نہیں)
DSPIC33FJ16GS402-I/SO زیادہ سے زیادہ ریٹنگز اور برقی خصوصیات
| Core Architecture | 16-bit dsPIC33F DSC (modified Harvard) |
| CPU Speed | 40 MIPS (up to 50 MHz device clock) |
| Program Memory | 16 KB flash |
| Data Memory (RAM) | 2 KB |
| سپلائی وولٹیج | 3.0 V to 3.6 V |
| آپریٹنگ درجہ حرارت | -40C to +85C (Industrial, "I") |
| پیکیج | 28-pin SOIC (SO), 1.27 mm pitch |
| ADC | 10-bit, multi-channel high-speed ADC |
| Analog Comparators | Dual comparators with PWM output reference |
| DMA Channels | 4-channel DMA |
| Internal Oscillator | 8 MHz internal RC (with PLL) |
| Communication Peripherals | UART, SPI, I2C |
| Debug Interface | JTAG / ICD |
| ماؤنٹنگ ٹائپ | Surface Mount |
| RoHS اسٹیٹس | Compliant |
DSPIC33FJ16GS402-I/SO پن کنفیگریشن
| پن 1 | SDA/RP9/CN21 — I2C data / remappable peripheral / change notification |
| پن 2 | RP8/CN20/RB8 — Remappable peripheral / CN / Port B |
| پن 3 | RP7/CN19/RB7 — Remappable peripheral / CN / Port B |
| پن 4 | RP6/CN18/RB6 — Remappable peripheral / CN / Port B |
| پن 5 | AN0/RP0/CN4/RB0 — Analog input / remappable / CN / Port B |
| پن 6 | AN1/RP1/CN5/RB1 — Analog input / remappable / CN / Port B |
| پن 7 | AN2/RP2/CN6/RB2 — Analog input / remappable / CN / Port B |
| پن 8 | AN3/RP3/CN7/RB3 — Analog input / remappable / CN / Port B |
| پن 9 | VSS — Ground reference |
| پن 10 | PWM1H/RP10/CN22/RB10 — PWM1 high output / remappable / CN / Port B |
| پن 11 | PWM1L/RP11/CN23/RB11 — PWM1 low output / remappable / CN / Port B |
| پن 12 | PWM2H/RP12/CN24/RB12 — PWM2 high output / remappable / CN / Port B |
| پن 13 | PWM2L/RP13/CN25/RB13 — PWM2 low output / remappable / CN / Port B |
| پن 14 | VCAP — Internal voltage regulator output, decoupling cap |
| پن 15 | PWM3H/RP14/CN26/RB14 — PWM3 high output / remappable / CN / Port B |
| پن 16 | PWM3L/RP15/CN27/RB15 — PWM3 low output / remappable / CN / Port B |
| پن 17 | PWM4H/RP16/CN28/RC0 — PWM4 high output / remappable / CN / Port C |
| پن 18 | PWM4L/RP17/CN29/RC1 — PWM4 low output / remappable / CN / Port C |
| پن 19 | MCLR — Master clear reset (active low) |
| پن 20 | OSC1/RC12 — Crystal oscillator input / Port C |
| پن 21 | OSC2/RC13 — Crystal oscillator output / Port C |
| پن 22 | FLTA/RP20/CN52/RC8 — PWM fault input / remappable / CN / Port C |
| پن 23 | RP21/CN53/RC9 — Remappable peripheral / CN / Port C |
| پن 24 | RP22/CN54/RC10 — Remappable peripheral / CN / Port C |
| پن 25 | TDO/RP24/CN55/RC2 — JTAG test data out / remappable / CN / Port C |
| پن 26 | TCK/RP25/CN56/RC3 — JTAG test clock / remappable / CN / Port C |
| پن 27 | TMS/RP26/CN57/RC4 — JTAG test mode select / remappable / CN / Port C |
| پن 28 | VDD — Positive supply (3.0 V to 3.6 V) |
عام استعمالات
DSPIC33FJ16GS402-I/SO کے لیے موزوں ہے 6 ایپلیکیشنs: AC-to-DC Power Converter Control, Isolated DC-to-DC Converter (Quarter-Brick), Power Factor Correction (PFC) Stage, Uninterruptible Power Supply (UPS) Control, Photovoltaic Micro-Inverter, Digital Lighting Ballast.
AC-to-DC Power Converter Control
The DSPIC33FJ16GS402-I/SO fits AC-to-DC converter control because its 40 MIPS dsPIC33F core executes single-cycle MAC operations needed for average-current-mode control loops above 100 kHz. With its 3.0 V to 3.6 V supply and on-chip 10-bit high-speed ADC, the device samples rectified mains voltage and inductor current while generating phase-controlled PWM for the boost PFC stage. The 16 KB flash hosts state machines for soft-start, brown-out, and valley skipping to optimize light-load efficiency.
تجویز کردہ
Isolated DC-to-DC Converter (Quarter-Brick)
For isolated DC-DC converters in intermediate bus architectures, the DSPIC33FJ16GS402-I/SO provides the high-speed PWM resolution required for primary-side peak-current-mode control and secondary-side synchronous rectifier timing. Its dual analog comparators deliver cycle-by-cycle current limiting at switching frequencies up to 1 MHz, while the 4-channel DMA offloads housekeeping telemetry from the CPU. This allows the controller to maintain tight output regulation across the quarter-brick's wide load range.
تجویز کردہ
Power Factor Correction (PFC) Stage
The DSPIC33FJ16GS402-I/SO suits PFC stages thanks to its dedicated high-speed PWM and fast analog comparators capable of cycle-by-cycle current shaping. The 16-bit modified Harvard architecture runs the boost PFC control loop in well under 1 us, allowing switching frequencies above 100 kHz for reduced magnetics. With 16 KB of flash and 2 KB of RAM, the controller stores the PI compensator coefficients, soft-start ramp, and THD optimization look-up tables needed for >0.99 power factor.
تجویز کردہ
Uninterruptible Power Supply (UPS) Control
For line-interactive and double-conversion UPS topologies, the DSPIC33FJ16GS402-I/SO coordinates battery charging, AC-mains synchronization, and inverter PWM generation from a 3.3 V rail. Its DSP engine executes RMS voltage calculations and zero-crossing detection while the high-speed PWM drives the inverter at low-distortion sine output. The 16 KB flash accommodates state-machine firmware for grid-tie/battery mode transitions and fault diagnostics required for offline UPS safety standards.
تجویز کردہ
Photovoltaic Micro-Inverter
The DSPIC33FJ16GS402-I/SO is a strong fit for photovoltaic micro-inverters because its high-speed PWM channels and analog comparators implement Maximum Power Point Tracking (MPPT) at panel-level switching rates. The device's 10-bit ADC continuously samples PV voltage and current while the DSP engine computes incremental-conductance MPPT in real time. Operating from 3.0 V to 3.6 V, the controller integrates easily with gate drivers in compact micro-inverter designs.
تجویز کردہ
Digital Lighting Ballast
For digital fluorescent and LED ballasts, the DSPIC33FJ16GS402-I/SO generates high-frequency PWM that drives resonant LC tanks for HID or LED current regulation. The 16-bit DSP engine computes RMS lamp current and runs warm-up curves to extend lamp life, while the on-chip analog comparators detect lamp-strike and end-of-life faults. With 2 KB of RAM it stores dimming schedules and supports DALI or 0-10 V analog dimming interfaces for commercial lighting control.
تجویز کردہ
تجویز کردہ پروڈکٹس کا خلاصہ
کے لیے انجینئرنگ ریفرنس ڈیٹا DSPIC33FJ16GS402-I/SO — موازنہ، ڈیزائن رہنمائی، اور تعمیل کی معلومات۔
انتخاب کی گائیڈ
متبادلات کے ساتھ موازنہ
| پیرامیٹر | یہ پروڈکٹ | DSPIC33FJ16GS402-I/MM | DSPIC33FJ16GS402-E/SO | DSPIC33FJ16GS402-H/SP | DSPIC33FJ16GS402-50I/SP | DSPIC33FJ16GS404-I/SO |
|---|---|---|---|---|---|---|
| Package | SOIC-28 (SO) | QFN-28 (MM) | SOIC-28 | SPDIP-28 | SPDIP-28 | SOIC-28 |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| CPU Speed | 40 MIPS (50 MHz max) | 40 MIPS | 40 MIPS | 40 MIPS | 50 MIPS | 40 MIPS |
| Flash Memory | 16 KB | 16 KB | 16 KB | 16 KB | 16 KB | 16 KB |
| RAM | 2 KB | 2 KB | 2 KB | 2 KB | 2 KB | 2 KB |
| Supply Voltage | 3.0 V to 3.6 V | 3.0 V to 3.6 V | 3.0 V to 3.6 V | 3.0 V to 3.6 V | 3.0 V to 3.6 V | 3.0 V to 3.6 V |
| Operating Temperature | -40C to +85C (I) | -40C to +85C | -40C to +125C (E) | -40C to +150C (H) | -40C to +85C | -40C to +85C |
| Pin Count | 28 | 28 | 28 | 28 | 28 | 44 |
اہم امتیازی خصوصیات
- Integrated high-speed PWM and analog comparators purpose-built for SMPS (بمقابلہDSPIC33FJ16GS402-E/SO)
- 40 MIPS DSP engine with single-cycle MAC for tight control loops (بمقابلہDSPIC33FJ16GP304-I/ML)
- On-chip 4-channel DMA for low-overhead data movement (بمقابلہDSPIC33FJ16GS402-50I/SP)
ڈیزائن نوٹس
The DSPIC33FJ16GS402-I/SO operates from 3.0 V to 3.6 V and requires a 10 uF + 0.1 uF decoupling pair on VDD placed within 5 mm of the VDD pin. The VCAP pin (pin 14) must have a low-ESR 4.7 uF to 10 uF ceramic capacitor tied to ground to stabilize the internal 1.8 V core regulator. Estimated: at 40 MIPS and 3.3 V, VDD current draw is around 30 mA - size the upstream 3.3 V LDO accordingly.
The 28-pin SOIC package has a typical theta_JA of approximately 70 C/W. At 30 mA active current and 3.3 V, internal dissipation is only 100 mW - well within thermal limits. For designs pushing higher PWM duty cycles or operating at 50 MHz (GS402-50I variant), keep the SOIC copper pour to at least 100 mm^2 on the VDD/GND plane to limit junction temperature rise. Estimated dissipation assumes typical dsPIC33F activity.
Route the high-speed PWM traces (PWM1H/L through PWM4H/L) with controlled impedance and keep them short - these signals drive power-stage MOSFETs at up to 1 MHz edge rates and are susceptible to ringing. Place the analog ADC traces (AN0-AN3) away from PWM traces by at least 3x trace spacing to minimize coupled noise into current-sense measurements. The MCLR pin needs a 10 kohm pull-up and a 100 nF cap to ground for clean in-circuit debugging.
Do not confuse the DSPIC33FJ16GS402 (28-pin, 16 KB flash) with the smaller-pin DSPIC33FJ06GS101/102 or larger-pin DSPIC33FJ16GS404/502/504 families - register maps and PWM channel counts differ. When migrating firmware from a 44-pin GS404 to the 28-pin GS402, remove or comment out references to PWM5/PWM6 and to ADC channels AN6+ to avoid silent compile-time peripheral conflicts.
تعمیل کی معلومات
RoHS/REACH compliance and lead-free status confirmed via Microchip product page. The -E (extended) and -H (high-temperature) variants are not AEC-Q100 qualified; automotive applications should request AEC-Q100 parts from Microchip directly.
