DSPIC33EP128GS808-E/PT - 16-bit DSC 70MIPS CAN TQFP-80 | Microchip
MPN: DSPIC33EP128GS808-E/PT ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $7.2 | $7.20 |
| 10 | $6.55 | $65.50 |
| 100 | $5.8 | $580.00 |
| 500 | $5.3 | $2,650.00 |
| 1,000 | $4.9 | $4,900.00 |
DSPIC33EP128GS808-E/PT Overview
A digital signal controller combines the computational architecture of a digital signal processor with the peripheral integration and ease of use of a microcontroller. Within the power-management hierarchy, the DSC sits above general-purpose MCUs and is purpose-built for closed-loop control of switch-mode power supplies, where deterministic multiply-accumulate operations and fast analog-to-digital feedback loops are essential. The dsPIC33EP GS family is Microchip's dedicated digital-power conversion subfamily.
Key features of the DSPIC33EP128GS808-E/PT include the 70 MIPS dsPIC DSC core with DSP engine and barrel shifter, high-speed PWM peripherals targeted at SMPS topologies, a 5-channel 12-bit ADC with sample-and-hold capability for simultaneous multi-rail sensing, an integrated 12-bit DAC, and a CAN 2.0B module for automotive and industrial networking. The /PT suffix denotes the 80-lead TQFP tray packaging, while the E suffix specifies the extended operating temperature range of -40C to +125C for demanding environments.
Architecturally, the device is based on the proven-on-silicon automotive-grade dsPIC33EP128GS808 core running at 60 MHz CMOS, supporting modified Harvard bus execution with DSP instructions, enhanced flash ECC, boundary-scan (JTAG) support, and on-chip peripherals optimized for 2-pole/2-zero (2P2Z) digital compensator implementations used in digital power loops.
Typical applications include AC-DC converters and interleaved power factor correction (PFC) stages up to 350 W, DC-DC converters and point-of-load supplies, digital UPS and solar inverter control, battery chargers, and automotive/industrial CAN-networked control nodes.
Design consideration: at 70 MIPS the core draws peak supply current, so a robust 3.3V rail with local decoupling on every VDD/VSS pair and a low-impedance analog ground for the ADC is essential; also confirm Flash erase/write endurance limits if storing calibration data in self-programmed Flash.
This page synthesizes distributor availability data, drop-in family alternatives, pricing tiers, and practical design notes not consolidated in the manufacturer datasheet.
Drop-in alternatives for DSPIC33EP128GS808-E/PT — 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 DSPIC33EP128GS808-E/PT (same form factor and footprint) — differing in Operating Temperature, Package.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
DSPIC33EP64GS808-E/PT
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
$5.85 / Unit
View Datasheet →DSPIC33EP128GS808-I/PT
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
$7.55 / Unit
View Datasheet →DSPIC33EP128GS806-E/PT
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
DSPIC33EP64GS806-E/PT
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
$4.8 / Unit
View Datasheet →DSPIC33EP128GS808-E/PTVAO
✅ Drop-In📋 Reference alternative (not in catalog)
DSPIC33EP128GS808-E/PT Maximum Ratings & Electrical Characteristics
| Core | 16-bit dsPIC DSC |
| Max CPU Speed | 70 MIPS (60 MHz CMOS core) |
| Program Memory (Flash) | 128 KB |
| RAM | 8 KB |
| Supply Voltage | 3.3 V |
| CAN Interface | CAN 2.0B |
| ADC Resolution | 12-bit, 5-channel with sample-and-hold |
| DAC | 12-bit integrated |
| DSP Features | DSP engine, barrel shifter |
| Operating Temperature | -40C to +125C (E, extended) |
| Package | 80-pin TQFP (12x12 mm), tray |
| Mounting Type | Surface Mount |
| Boundary Scan | JTAG / boundary scan support |
| Grade | Automotive-grade core (proven-on-silicon) |
| Target Applications | Digital power (SMPS), PFC, AC-DC, DC-DC |
| RoHS Status | Compliant |
DSPIC33EP128GS808-E/PT 80-pin tqfp (12x12 mm), tray Pin Configuration Guide
Pin configuration for DSPIC33EP128GS808-E/PT (80-pin tqfp (12x12 mm), tray 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 DSPIC33EP128GS808-E/PT.
Refer to the datasheet for full pin configuration.
Typical Applications
DSPIC33EP128GS808-E/PT is suitable for 6 applications: Interleaved Power Factor Correction (PFC), AC-DC and DC-DC Switch-Mode Power Supplies, Automotive Power Conversion and CAN-Networked Nodes, Solar Inverters and Digital UPS, Battery Chargers and Battery Management, Industrial Motor Control and Automation Nodes.
Interleaved Power Factor Correction (PFC)
The DSPIC33EP128GS808-E/PT is a natural fit for interleaved PFC because its 70 MIPS core executes the 2P2Z compensator and phase-current balancing loops with deterministic latency, while the 5-channel 12-bit ADC with sample-and-hold captures input voltage, inductor currents, and bus voltage simultaneously. Microchip's Interleaved PFC reference design, built on this DSC family, converts universal AC input to a single high-voltage DC output up to 350 W. The high-resolution PWM peripherals drive interleaved switching phases with phase-shift control; a key performance benefit is stable power factor above 0.99 with reduced input current ripple compared to single-phase designs.
Recommended
AC-DC and DC-DC Switch-Mode Power Supplies
For digital SMPS control, the DSPIC33EP128GS808-E/PT combines the high-speed PWM modules needed for peak-current-mode or voltage-mode control with the 12-bit ADC and integrated 12-bit DAC for fast feedback and reference generation. The 70 MIPS DSP core closes current loops with sample rates in the tens of kHz to hundreds of kHz range, implementing nonlinear or multi-loop compensation in firmware. The 128 KB Flash accommodates full firmware plus soft-start, protection, and communication state machines. Placed as the sole supervisory controller between the power stage and the housekeeping supply, it eliminates analog compensation components and enables firmware-tunable transient response.
Recommended
Automotive Power Conversion and CAN-Networked Nodes
The DSPIC33EP128GS808-E/PT derives from the proven-on-silicon automotive-grade dsPIC33EP128GS808 and operates from -40C to +125C, matching under-hood and onboard-charger thermal environments. The integrated CAN 2.0B module connects the controller directly to vehicle networks for telemetry, diagnostics, and coordinated charging control, while the high-speed PWM and 12-bit ADC with sample-and-hold regulate 12 V-to-48 V DC-DC conversion stages and LED headlight drivers with tight current accuracy. In a typical onboard converter, the DSC samples input/output current and temperature each switching cycle, executes current-mode compensation, and reports status over CAN at 500 kbps without additional networking components.
Recommended
Solar Inverters and Digital UPS
Grid-tied solar microinverters and digital UPS systems require simultaneous control of an MPPT DC-DC stage, a DC-AC inverter stage, and grid-synchronization software - exactly the multi-loop workload the DSPIC33EP128GS808-E/PT was designed for. The 70 MIPS core runs MPPT algorithms and sinusoidal PWM generation concurrently, the 5-channel 12-bit ADC samples panel voltage/current and grid voltage with sample-and-hold phase alignment, and 128 KB Flash stores anti-islanding protection logic and communication stacks. Firmware-defined compensation lets one PCB serve multiple power ratings, shortening product variants; the E temperature grade suits outdoor enclosures reaching +125C junction environments with derating.
Recommended
Battery Chargers and Battery Management
Smart battery chargers benefit from the DSPIC33EP128GS808-E/PT's combination of precise analog sensing and networked control. The 12-bit ADC with sample-and-hold monitors charge current, pack voltage, and temperature with enough resolution for CC/CV taper control to under 1% setpoint accuracy, while the high-speed PWM regulates the buck or flyback power stage across the full charge profile. The CAN 2.0B interface links the charger to vehicle or fleet management systems, and the 128 KB Flash stores charge algorithms, fault logs, and safety state machines. Operation to +125C permits mounting the controller inside sealed charger enclosures without forced-air cooling in most designs.
Recommended
Industrial Motor Control and Automation Nodes
Although optimized for digital power, the DSPIC33EP128GS808-E/PT's DSP engine, barrel shifter, and 70 MIPS throughput also serve sensorless motor control (BLDC/PMSM) and intelligent automation nodes. The high-speed PWM generates complementary outputs with dead-time control for three-phase bridges, the 12-bit ADC samples phase currents and bus voltage with sample-and-hold synchronization, and the DSP core executes Clarke/Park transforms and field-oriented control in real time. The CAN module integrates the drive into factory networks, and the extended -40C to +125C range suits drives mounted on motors or in hot cabinets. Firmware-based control enables predictive-maintenance analytics in the same 128 KB Flash.
Recommended
Recommended Products Summary
Engineering reference data for DSPIC33EP128GS808-E/PT — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | DSPIC33EP64GS808-E/PT | DSPIC33EP128GS808-I/PT | DSPIC33EP128GS806-E/PT | DSPIC33EP64GS806-E/PT |
|---|---|---|---|---|---|
| Package | 80-TQFP (12x12 mm) | 80-TQFP (12x12 mm) - same | 80-TQFP (12x12 mm) - same | 80-TQFP (12x12 mm) - same | 80-TQFP (12x12 mm) - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Flash Program Memory | 128 KB | 64 KB | 128 KB | 128 KB | 64 KB |
| RAM | 8 KB | 8 KB | 8 KB | 8 KB | 8 KB |
| CPU Performance | 70 MIPS | 70 MIPS | 70 MIPS | 70 MIPS | 70 MIPS |
| Operating Temperature | -40C to +125C (E) | -40C to +125C (E) | -40C to +85C (I) | -40C to +125C (E) | -40C to +125C (E) |
| CAN 2.0B | Yes | Yes | Yes | Yes | Yes |
| Automotive-Grade Core | Yes (proven-on-silicon) | Yes | Yes | Yes | Yes |
Key Differentiators
- Extended temperature range for automotive environments (vs DSPIC33EP128GS808-I/PT)
- Full high-speed ADC complement in the 80-TQFP (vs DSPIC33EP128GS806-E/PT)
- Maximum code headroom in the GS series (vs DSPIC33EP64GS808-E/PT)
- CAN 2.0B integrated for networked power conversion (vs TI C2000 TMS320F2803x (non-drop-in))
Design Notes
Decouple every VDD/VSS pin pair of the 80-TQFP with 0.1 uF ceramic capacitors placed within 2 mm of the pins, plus at least one bulk 10 uF capacitor per supply domain. At 70 MIPS the core current peaks are fast; a poor decoupling network shows up as ADC noise and intermittent Flash write errors. Keep AVDD on its own filtered 3.3 V rail (ferrite bead plus 1 uF) since the 12-bit ADC reference quality directly sets digital-power loop accuracy.
Estimated: at 3.3 V with the DSC core plus PWM and CAN active, typical device dissipation is in the low hundreds of milliwatts - far below the TQFP-80's capability - but verify against the datasheet electrical characteristics for your actual clock configuration. For the -E/PT extended grade, ensure junction temperature stays below 125C at maximum ambient by keeping surrounding power-stage hotspots away from the controller zone of the PCB and using thermal reliefs rather than solid copper pours under the package only if needed.
Two frequent mistakes: (1) designing the PCB footprint from a generic TQFP-80 drawing instead of Microchip's package outline - confirm the 12x12 mm body and 0.5 mm pitch land pattern from the official drawing before release; (2) assuming all GS-family members share the same ADC channel mapping - GS806 variants reduce high-speed ADC channels, so firmware and sensor routing must be re-verified before dropping in a substitute. Also check Flash endurance limits before implementing frequent self-programmed data logging.
Route the high-speed PWM outputs away from the ADC input traces and the CAN bus; on a digital-power PCB, PWM coupling into current-sense inputs appears as loop instability that is hard to diagnose in firmware. Use a solid ground plane, place the RC anti-aliasing filters close to the ADC pins, and use differential or Kelvin sensing at power shunts. Microchip's dsPIC33EP128GS808 Development Board User's Guide (2P2Z compensator example) provides a proven reference layout starting point.
Compliance Information
Part is built on the proven-on-silicon automotive-grade dsPIC33EP128GS808 core per Microchip; specific AEC-Q100 qualification level for this ordering code not stated in provided data. RoHS/lead-free inferred from standard Microchip /PT production parts - confirm on the Microchip product page environmental data sheet.
