DSPIC33FJ06GS202-E/MM - 16-bit DSC 6KB Flash 28-QFN | Microchip
MPN: DSPIC33FJ06GS202-E/MM ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $4.27 | $4.27 |
| 10 | $3.94 | $39.40 |
| 100 | $3.42 | $342.00 |
| 500 | $2.95 | $1,475.00 |
| 1,000 | $2.58 | $2,580.00 |
DSPIC33FJ06GS202-E/MM Overview
A digital signal controller is a hybrid device that merges the deterministic control structure of a microcontroller with the mathematical throughput of a DSP. Within the power-management hierarchy, the dsPIC33F 'GS' family sits between general-purpose MCUs and dedicated digital-power ASICs: it is a 16-bit MCU/DSP that closes control loops in switch-mode power supplies, lighting ballasts, and battery chargers entirely in firmware.
Key features of this part include the high-speed PWM peripheral purpose-built for power conversion, on-chip analog comparators for cycle-by-cycle current limiting, and an ADC that samples the power stage directly. The '-E' temperature grade (up to +125C ambient) supports mounted environments near hot power stages, and the 28-QFN footprint minimizes loop inductance for switching converters.
Architecturally, the dsPIC33F core provides multiple internal buses, a barrel shifter, DSP multiply-accumulate instructions, and IEEE 1149.2-compatible JTAG boundary scan, with In-Circuit and In-Application programming supported through Flash self-write. Peripheral Pin Select (PPS) allows remapping of PWM and communication functions to available pins, easing PCB layout in dense power designs.
Typical applications include AC-DC and DC-DC digital power supplies, LED drivers, battery chargers, power factor correction stages, and uninterruptible power supplies, where the GS DSC executes voltage, current, and PFC control loops in firmware.
When designing with this device, budget the 6 KB Flash carefully: the digital control loop, compensation, and state machine typically fit, but complex communication stacks may not, so verify code size early in the project.
This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet.
Drop-in alternatives for DSPIC33FJ06GS202-E/MM — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Variants in this series
Same-series models that are drop-in compatible with DSPIC33FJ06GS202-E/MM (same form factor and footprint) — differing in Core Architecture, Operating Temperature, Package, Supply Voltage, Timers.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
DSPIC33FJ06GS202A-E/MM
✅ Drop-In📋 Reference alternative (not in catalog)
DSPIC33FJ06GS202-50E/MM
✅ Drop-In📋 Reference alternative (not in catalog)
DSPIC33FJ06GS102A-E/TL
✅ Drop-In📋 Reference alternative (not in catalog)
DSPIC33EP64MC502-E/MM
✅ Drop-In✓ In Stock
$3.05 / Unit
View Datasheet →DSPIC33EV128GM102T-I/MM
✅ Drop-In✓ In Stock
$2.98 / Unit
View Datasheet →DSPIC33FJ06GS202-E/MM Maximum Ratings & Electrical Characteristics
| Core Architecture | 16-bit dsPIC33F MCU/DSP |
| Program Memory Size | 6 KB Flash |
| SRAM Size | 1 KB |
| Maximum Clock Frequency | 40 MHz |
| Supply Voltage Range | 3 V to 3.6 V |
| Operating Temperature Range | -40C to +125C (E grade) |
| Package Type | 28-QFN-S (MM), 6x6 mm |
| Mounting Type | Surface Mount |
| Peripherals | High-Speed PWM, ADC, Comparators |
| Programming | In-Circuit and In-Application Programming (self-programming Flash) |
| Debug/Scan | JTAG boundary scan (IEEE 1149.2-compatible) |
| Pin Remapping | Peripheral Pin Select (PPS), PWM4H/PWM4L remappable |
| Lifecycle Status | Active (In Production) |
DSPIC33FJ06GS202-E/MM 28-qfn-s (mm), 6x6 mm Pin Configuration Guide
Pin configuration for DSPIC33FJ06GS202-E/MM (28-qfn-s (mm), 6x6 mm package). This digital IC includes GPIO, communication interfaces (UART, SPI, I2C), and power pins. Refer to the manufacturer datasheet for alternate pin functions and configuration options. Essential for embedded system design and PCB layout.
No detailed pinout data available for DSPIC33FJ06GS202-E/MM.
Refer to the datasheet for full pin configuration.
Typical Applications
DSPIC33FJ06GS202-E/MM is suitable for 6 applications: Digital AC-DC Power Supplies, DC-DC Converters (Buck/Boost/LLC), LED Lighting Drivers and Ballasts, Battery Chargers, Power Factor Correction (PFC) Stages, Uninterruptible Power Supplies (UPS).
Digital AC-DC Power Supplies
The GS202 is purpose-built for digitally controlled AC-DC converters: its high-speed PWM peripheral generates phase-shifted or complementary drive, while the on-chip ADC and comparators sample the output voltage and switch current every cycle. The 16-bit DSP core executes the compensation loop in firmware, eliminating tolerance-drift issues of analog compensators and enabling adaptive control across line and load. Place the DSC between the rectified bulk rail sensing network and the MOSFET gate drivers; with a 3.3 V supply and 28-QFN 6x6 mm footprint, it sits close to the control circuitry. The -40C to +125C E-grade tolerates elevated temperatures near the power stage without forced-air cooling.
Recommended
DC-DC Converters (Buck/Boost/LLC)
In point-of-load and isolated DC-DC designs, the GS202's PWM module supports the complementary and push-pull modes needed by synchronous buck, boost, and LLC topologies. The comparator block can implement cycle-by-cycle current limiting in hardware, protecting the MOSFETs faster than any firmware interrupt response. Firmware compensation lets one PCB serve multiple output voltages - a strong advantage for platform designs - since the control law is code, not capacitors and resistors. With 6 KB Flash, a single-loop converter with soft-start, fault handling, and PMBus-lite telemetry fits comfortably; verify code size before adding communication stacks.
Recommended
LED Lighting Drivers and Ballasts
Digitally controlled LED drivers benefit from the GS202's combination of PWM resolution, on-chip ADC, and comparators: the PWM adjusts LED current for dimming, the ADC reads current sense resistors for closed-loop regulation, and comparators provide fast over-current protection. Firmware-based control also enables temperature derating by sampling an external NTC through the ADC. The 28-QFN package keeps the controller compact on driver boards integrated into luminaires, and the -E grade (-40C to +125C) covers driver enclosures that run hot. The 3.0-3.6 V supply is easily derived from an auxiliary buck winding on the main converter transformer.
Recommended
Battery Chargers
Multi-chemistry battery charging requires precisely sequenced current (CC) and voltage (CV) phases with termination detection - a natural fit for firmware-based control on the GS202. The ADC monitors pack voltage, charge current, and cell temperature, while the PWM stage drives the buck charging converter; the comparators guard against fault currents in hardware. Charge algorithms such as Li-ion CC-CV or lead-acid staged charging are implemented in the 6 KB Flash, and termination criteria are computed in the DSP core. The wide -40C to +125C operating range suits automotive-adjacent and outdoor chargers, where the QFN package also resists vibration better than larger leaded packages.
Recommended
Power Factor Correction (PFC) Stages
Active PFC demands a fast inner current loop synchronized to the rectified line and a slower outer voltage loop - both executed digitally on the GS202. The ADC samples input current and bus voltage each PWM cycle, and the DSP core computes the duty update, achieving sinusoidal current shaping with distortion figures that analog average-current-mode control struggles to match across universal line inputs. Firmware also implements brown-out handling, inrush management, and bus overvoltage protection. The GS202's high-speed PWM dead-time control protects the boost MOSFET and diode, and the compact 28-QFN layout minimizes the length of the sensitive current-sense traces to the ADC input.
Recommended
Uninterruptible Power Supplies (UPS)
In UPS systems, the GS202 can control the inverter bridge, the AC-DC charging converter, and the transfer logic on one controller: its PWM channels drive the inverter switches, the ADC samples output voltage and battery state, and firmware orchestrates seamless line-to-battery transfer. Digital control enables output waveform shaping (pure sine synthesis) and fast fault interruption via the comparator inputs. While 6 KB Flash constrains communication features, a basic offline UPS control function set fits within the memory budget. The -E temperature grade and JTAG boundary scan (IEEE 1149.2-compatible) support manufacturing test in industrial UPS production lines.
Recommended
Recommended Products Summary
Engineering reference data for DSPIC33FJ06GS202-E/MM — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | DSPIC33FJ06GS202A-E/MM | DSPIC33FJ06GS202-50E/MM | DSPIC33FJ06GS102A-E/TL | DSPIC33EP64MC502-E/MM | DSPIC33EV128GM102T-I/MM |
|---|---|---|---|---|---|---|
| Package | 28-QFN-S (MM) 6x6 mm | 28-QFN (MM) 6x6 mm - same | 28-QFN (MM) PQCC28 - same | 28-QFN (TL) | 28-QFN (MM) | 28-QFN (MM) |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Program Memory (Flash) | 6 KB | 6 KB | 6 KB | 6 KB | 64 KB | 128 KB |
| Core Family | dsPIC33F GS (digital power) | dsPIC33F GS | dsPIC33F GS | dsPIC33F GS | dsPIC33EP MC (motor control) | dsPIC33EV |
| Key Peripherals | High-speed PWM, ADC, comparators | High-speed PWM, ADC, comparators | High-speed PWM, ADC, comparators | Reduced GS peripheral set | Motor-control PWM, ADC | EV peripheral set incl. CAN |
Key Differentiators
- Lowest-memory footprint for cost-optimized digital power (vs DSPIC33EP64MC502-E/MM)
- Purpose-built digital-power peripherals (vs DSPIC33EV128GM102T-I/MM)
- Extended temperature grade (vs DSPIC33FJ06GS102A-E/TL)
Design Notes
The GS202 requires a clean 3.0-3.6 V rail. In digital power designs the controller usually shares a board with switching converters, so generate VDD from a small LDO or filtered auxiliary winding rather than tapping a noisy bulk rail directly. Place a 0.1 uF ceramic capacitor within 2 mm of each VDD pin plus a 4.7-10 uF bulk capacitor nearby. Verify brown-out behavior at 3.0 V minimum - the switching converter's own transients can dip the rail and reset the DSC mid-PWM-cycle, which is dangerous in a half-bridge topology.
Keep ADC sense traces (current shunt, output voltage divider) as short as possible and route them away from PWM gate-drive lines. The Peripheral Pin Select (PPS) feature is a layout ally: remap PWM outputs to pins that minimize crossing of the gate-drive loops. Use the QFN exposed ground structure for a low-inductance ground return, and connect the analog ground reference for the ADC to a quiet star point. The 28-QFN 6x6 mm footprint makes 4-layer boards affordable at this controller count.
Two frequent mistakes with this part: (1) underestimating 6 KB Flash - a control loop plus an unplanned communication protocol (I2C host interface, logging) can overflow the memory late in the project; prototype code size before committing, or use a footprint-compatible migration plan such as DSPIC33EP64MC502-E/MM. (2) Ignoring silicon revision errata - if switching to the A-revision (DSPIC33FJ06GS202A-E/MM) mid-production, review the Microchip errata document for fixed bugs that may have been worked around in your firmware.
Estimated: with VDD = 3.3 V and a typical 40 MHz control-loop load current on the order of tens of milliamps, internal dissipation is well under 0.2 W, so the QFN package does not require heatsinking for the controller itself. The -E grade rating of +125C ambient provides margin for placement near hot power stages. Ensure the PCB copper under the QFN keeps the actual junction temperature below the absolute maximum rating; verify with a thermal camera during full-load converter testing.
Compliance Information
Compliance status must be confirmed on the Microchip product page compliance tab or distributor CoC for the -E/MM ordering code; not stated in the retrieved web data.
