DSPIC33FJ64GS610T-I/PT - 40MIPS 16-bit DSC for Digital Power | Microchip
MPN: DSPIC33FJ64GS610T-I/PT ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $8.43 | $8.43 |
| 10 | $7.59 | $75.90 |
| 100 | $6.8 | $680.00 |
| 500 | $6.12 | $3,060.00 |
| 1,000 | $5.5 | $5,500.00 |
DSPIC33FJ64GS610T-I/PT Overview
A digital signal controller combines the computational throughput of a 16-bit microcontroller with DSP-grade math acceleration, making the dsPIC33F family a staple of digital switch-mode power supply (SMPS) design, where a single chip closes current and voltage control loops in firmware while driving PWM stages directly. Within the power-management semiconductor hierarchy, the DSPIC33FJ64GS610 sits in the digital power conversion segment between general-purpose MCUs and dedicated DSPs.
Key features include a high-speed PWM module purpose-built for power conversion, a high-speed 10-bit and 12-bit ADC with simultaneous multi-channel sampling for multi-loop control, and integrated analog comparators for cycle-by-cycle current limiting. The device supports 40 MHz input clocking (40 MIPS operation per Microchip USA product data), and the tape-and-reel (/T) suffix supports automated SMT assembly lines.
The architecture pairs the dsPIC33F 16-bit RISC core with DSP multiply-accumulate instructions and hardware loop support, enabling deterministic single-cycle MAC execution that keeps PFC and phase-shifted control loops stable at high switching frequencies. An In-Circuit Serial Programming (ICSP) interface via PGECx/PGEDx pins allows field firmware updates with only two dedicated pins, which Microchip recommends keeping as short traces to the programming connector.
Typical applications include AC-to-DC converters, DC-to-DC converters, Power Factor Correction (PFC) stages, uninterruptible power supplies (UPS), solar inverters, and battery chargers. The Interleaved PFC reference design from Microchip demonstrates 350 W output from a universal AC input using this controller family.
Design consideration: budget the PCB footprint carefully - the 100-pin TQFP (12x12 mm, 0.5 mm pitch) requires controlled-impedance-aware layout for the PWM outputs, and the extended-temperature -E/PT variant is required instead if -40C to +125C ambient is needed.
This page synthesizes distributor pricing, drop-in same-family alternatives, applications, and design guidance not found in a single manufacturer source.
Drop-in alternatives for DSPIC33FJ64GS610T-I/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 DSPIC33FJ64GS610T-I/PT (same form factor and footprint) — differing in Packaging, Package, RoHS Status, Supply Voltage, Operating Temperature.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
DSPIC33FJ64GS610T-50I/PT
✅ Drop-In✓ In Stock
$6.65 / Unit
View Datasheet →DSPIC33FJ64GS610-50I/PT
✅ Drop-In✓ In Stock
$6.9 / Unit
View Datasheet →DSPIC33FJ64GS610T-E/PT
✅ Drop-In📋 Reference alternative (not in catalog)
DSPIC33FJ64GS610-I/PT
✅ Drop-In📋 Reference alternative (not in catalog)
DSPIC33FJ64GS610T-I/PF
✅ Drop-In📋 Reference alternative (not in catalog)
DSPIC33FJ64GS610T-I/PT Maximum Ratings & Electrical Characteristics
| Core Processor | dsPIC33F 16-bit |
| Core Size | 16-bit |
| Speed | 40 MIPS (40 MHz) |
| Program Memory Size | 64KB (64K x 8) FLASH |
| RAM Size | 9KB |
| Supply Voltage | 3.3 V |
| Package | 100-TQFP (12x12 mm), 0.5 mm pitch |
| Mounting Type | Surface Mount |
| Operating Temperature | -40C to +85C (I grade) |
| Product Series | dsPIC33F 33F (SMPS/digital power family) |
| Peripherals | High-Speed PWM, ADC, Comparators |
| Special Features | Designed for digital switch-mode power supplies |
| Programming Interface | ICSP via PGECx/PGEDx |
| Packaging | Tape & Reel (T suffix), factory pack 40 |
| RoHS Status | RoHS compliant per supplier listing |
| Typical Applications | AC/DC, DC/DC converters, PFC, UPS |
DSPIC33FJ64GS610T-I/PT 100-tqfp (12x12 mm), 0.5 mm pitch Pin Configuration Guide
Pin configuration for DSPIC33FJ64GS610T-I/PT (100-tqfp (12x12 mm), 0.5 mm pitch 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 DSPIC33FJ64GS610T-I/PT.
Refer to the datasheet for full pin configuration.
Typical Applications
DSPIC33FJ64GS610T-I/PT is suitable for 6 applications: Power Factor Correction (PFC), DC-DC Converters, Uninterruptible Power Supplies (UPS), Solar Inverters, Battery Chargers, AC-DC Power Supplies.
Power Factor Correction (PFC)
The DSPIC33FJ64GS610T-I/PT is purpose-built for boost-PFC control in AC/DC front ends. Its high-speed PWM module generates the switch drive with programmable dead time, while the high-speed ADC samples inductor current and bulk-bus voltage every switching cycle, letting firmware close the inner current loop and outer voltage loop deterministically at 40 MIPS. Microchip's Interleaved PFC reference design based on this family produces up to 350 W from a universal AC input, proving the architecture in production-class power stages. Integrated comparators provide hardware cycle-by-cycle overcurrent protection that does not depend on software latency, a key safety benefit. Placed on the same PCB as the boost stage with short ADC traces, the DSC replaces multiple analog control chips while remaining field-updatable via ICSP firmware updates.
Recommended
DC-DC Converters
In isolated and non-isolated DC-DC converters - half-bridge, full-bridge, LLC, and buck topologies - the DSPIC33FJ64GS610T-I/PT combines phase-shifted PWM generation with fast analog feedback in one 3.3 V controller. The high-speed ADC's simultaneous multi-channel sampling captures output voltage, primary current, and temperature in the same instant, which is essential for stable multi-loop compensation. The 40 MIPS DSP core executes control-loop math with single-cycle MAC instructions, allowing loop update rates in the tens of kilohertz even at demanding switching frequencies. Hardware comparators trip the PWM outputs within nanoseconds on overcurrent events, independent of CPU load. Using the /PT tape-and-reel format, high-volume converter manufacturers can automate placement of the 100-TQFP directly onto power boards with standard SMT lines.
Recommended
Uninterruptible Power Supplies (UPS)
UPS systems require simultaneous inverter control, battery-charger management, and AC-line synchronization - exactly the multi-loop workload the DSPIC33FJ64GS610T-I/PT was designed for, as listed on Microchip's product page. The DSC's high-speed PWM drives the inverter bridge while the ADC samples battery voltage, output voltage, and line waveform concurrently for seamless transfer between mains and battery modes. Its 9KB RAM and 64KB FLASH accommodate control firmware plus housekeeping logic such as fault logging and communications. The comparators implement fast hardware protection for inverter overcurrent, and the industrial -40C to +85C rating suits equipment installed in telecom cabinets. Because control behavior is firmware-defined, UPS vendors can tune transfer timing and protection thresholds across products without changing hardware.
Recommended
Solar Inverters
Grid-tied solar micro-inverters and string-inverter DC/DC stages use the DSPIC33FJ64GS610T-I/PT to run maximum-power-point-tracking (MPPT) algorithms alongside the power-conversion control loops on one chip. The 40 MIPS core with DSP MAC support executes MPPT perturb-and-observe iterations while the PWM module maintains phase-shifted or interleaved switching, and the high-speed ADC's multiple simultaneous sample-and-hold channels measure PV-panel voltage/current and grid-side quantities at once. The integrated comparators back up software protection with hardware overcurrent trips, important for panel-level safety. Microchip's SMPS software libraries and the Interleaved PFC reference design shorten development time. Industrial temperature rating and RoHS compliance align with typical photovoltaic certification requirements for installed electronics.
Recommended
Battery Chargers
Smart multi-chemistry battery chargers benefit from the DSPIC33FJ64GS610T-I/PT's blend of precision analog sensing and power PWM control. The ADC monitors pack voltage, charge current, and cell temperature through multiple input channels, while firmware implements CC/CV profiles, trickle-charge phases, and termination criteria such as -dV/dt for NiMH or current taper for lithium chemistries. The high-speed PWM modulates the buck or flyback power stage, and comparators enforce hardware current limits between software supervision windows. Because the whole control chain is firmware-based, a single PCB supports multiple battery chemistries by reflashing firmware over ICSP - a significant BOM-consolidation advantage for charger product families. The 3.3 V, 100-pin TQFP interfaces cleanly to front-panel displays and communication peripherals.
Recommended
AC-DC Power Supplies
General-purpose AC-DC power supplies above roughly 75 W combine a PFC front end with an isolated DC/DC stage, and the DSPIC33FJ64GS610T-I/PT can govern both from its 100-pin TQFP: the high-speed PWM module provides multiple complementary output pairs with programmable dead time for the two stages, and the ADC samples all feedback channels synchronously. Microchip explicitly lists AC-to-DC converters among this family's target applications. Digital control enables adaptive features analog controllers cannot offer, such as burst mode for light-load efficiency compliance and firmware-configurable protection thresholds. The ICSP interface allows production-line firmware programming after board assembly, and the tape-and-reel packaging supports high-volume automated assembly. Development starts on the Explorer 16 board with the MA330024 PIM before committing to custom PCBs.
Recommended
Recommended Products Summary
Engineering reference data for DSPIC33FJ64GS610T-I/PT — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | DSPIC33FJ64GS610T-50I/PT | DSPIC33FJ64GS610-I/PT | DSPIC33FJ64GS610T-E/PT | DSPIC33FJ64GS610T-I/PF |
|---|---|---|---|---|---|
| Package | 100-TQFP (12x12 mm) | 100-TQFP (12x12 mm) - same | 100-TQFP (12x12 mm) - same | 100-PQFP (0.4 mm pitch) - same terminal count | 100-TQFP (14x14 mm) - larger body |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Core Speed | 40 MIPS (40 MHz) | 50 MIPS | 40 MIPS | 40 MIPS | 40 MIPS |
| Program Memory | 64KB FLASH | 64KB FLASH | 64KB FLASH | 64KB FLASH | 64KB FLASH |
| RAM | 9KB | 9KB | 9KB | 9KB (9.216KB) | 9KB |
| Operating Temperature | -40C to +85C (I grade) | -40C to +85C | -40C to +85C | -40C to +125C (E grade) | -40C to +85C |
| Supply Voltage | 3.3 V | 3.3 V | 3.3 V | 3.3 V | 3.3 V |
| Packaging Format | Tape & Reel (factory pack 40) | Tape & Reel | Tray | Tape & Reel | Tape & Reel |
Key Differentiators
- SMPS-optimized peripheral set (vs DSPIC33FJ64GS610T-50I/PT)
- Extended-temperature option on the same die (vs DSPIC33FJ64GS610T-E/PT)
- Tape-and-reel volume assembly (vs DSPIC33FJ64GS610-I/PT)
Design Notes
Route the PGECx/PGEDx ICSP programming pins to a 5-pin or 6-pin header kept as short as possible from the DSPIC33FJ64GS610T-I/PT, per the family datasheet recommendation - long ICSP traces degrade debug reliability and can pick up PWM switching noise. Keep the analog ADC input traces away from PWM output traces and return them over a clean analog ground island. The 100-TQFP 0.5 mm pitch requires solder-mask-defined pads per the Microchip landing pattern; verify your fabricator's tolerance before panelizing.
Do not substitute the /PT (12x12 mm) footprint with the /PF (14x14 mm) land pattern - they are different packages of the same die, as shown by DigiKey's separate listings. Also confirm temperature grade: the -I suffix is rated -40C to +85C only; for +125C environments order the -E grade. When migrating from DSPIC33FJ64GS610T-I/PT to the 50 MIPS variant, remember to update the clock configuration in firmware - the silicon is pin-identical but maximum OSCTUNE/Fcy settings differ.
Supply the controller from a clean 3.3 V rail with 0.1 uF ceramic decoupling at each VDD/VSS pair plus bulk capacitance near the TQFP; SMPS boards with high dv/dt switching nodes benefit from a dedicated low-noise LDO for the DSC's analog supply so ADC readings are not corrupted by PWM ripple. Sequence the power stage so the DSC is fully out of reset (and comparators armed) before PWM outputs are enabled, using the enable gating in firmware to prevent uncontrolled switch states at power-up.
Compliance Information
RoHS compliance per DigChip/distributor listings. REACH, halogen-free, and conflict-minerals declarations should be confirmed via Microchip's official product page for the specific date code.
