DSPIC33EP16GS506T-I/PT - 16-Bit 70MIPS DSC 16KB Flash | Microchip
MPN: DSPIC33EP16GS506T-I/PT ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $4.62 | $4.62 |
| 10 | $4.18 | $41.80 |
| 100 | $3.74 | $374.00 |
| 500 | $3.38 | $1,690.00 |
| 1,000 | $3.05 | $3,050.00 |
DSPIC33EP16GS506T-I/PT Overview
A digital signal controller combines the computational throughput of a DSP core with the peripheral integration and ease of use of a microcontroller. Within the power-management hierarchy, the DSC sits above a basic MCU and is purpose-built for closed-loop control: it executes the control law of a switch-mode power supply while dedicated hardware peripherals handle pulse-width modulation, analog sampling, and protection functions without CPU intervention.
The GS506 family is differentiated for digital power conversion. Its interconnected high-speed PWM module supports advanced topologies such as phase-shifted full bridge, LLC, and power-factor-correction stages. The on-chip analog front end integrates an ADC, programmable gain amplifiers (PGA), and comparators that can be cross-connected to the PWM outputs in hardware, enabling sub-microsecond fault response.
Beyond the power-conversion peripherals, the device provides 7 timers, 4 external interrupt sources, and 2 serial I/O ports, all managed through a multiple internal bus architecture in CMOS technology. Flash-based program memory allows field reprogramming and supports in-circuit serial programming (ICSP) via any PGECx/PGEDx pin pair used as a matched pair.
Typical applications include AC-DC and DC-DC switch-mode power supplies, solar inverters, battery chargers, digital lighting ballasts, and uninterruptible power supplies.
When designing with this device, verify all VDD and VSS pins are connected and decoupled, and pair ICSP clock and data pins correctly during programming.
This page synthesizes distributor pricing, drop-in alternatives, pinout guidance, and practical design notes not found in the manufacturer datasheet alone.
Drop-in alternatives for DSPIC33EP16GS506T-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 DSPIC33EP16GS506T-I/PT (same form factor and footprint) — differing in Operating Temperature, Package, Core Architecture, PWM, Analog Peripherals.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
No drop-in alternatives available for this product.
Request AlternativesDSPIC33EP16GS506T-I/PT Maximum Ratings & Electrical Characteristics
| Core Processor | dsPIC33EP (16-bit) |
| Core Size | 16-Bit |
| Maximum Performance | 70 MIPS |
| Program Memory Size | 16KB (16K x 8) Flash |
| RAM Size | 2 KB |
| Supply Voltage | 3.0 V to 3.6 V (3.3 V nominal) |
| Package | 64-TQFP (10x10 mm) |
| Operating Temperature | -40C to +85C |
| Mounting Type | Surface Mount |
| Timers | 7 |
| External Interrupts | 4 |
| Serial I/O Ports | 2 |
| Peripherals | Interconnected High-Speed PWM, ADC, PGA, Comparators |
| Application Focus | Digital Power / SMPS |
| Functional Safety | FuSa supported (dsPIC33EP GS family) |
| Packaging | Tape & Reel (T suffix) |
| Program Memory Type | FLASH (ICSP programmable) |
DSPIC33EP16GS506T-I/PT 64-tqfp (10x10 mm) Pin Configuration Guide
Pin configuration for DSPIC33EP16GS506T-I/PT (64-tqfp (10x10 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 DSPIC33EP16GS506T-I/PT.
Refer to the datasheet for full pin configuration.
Typical Applications
DSPIC33EP16GS506T-I/PT is suitable for 6 applications: AC-DC Switch-Mode Power Supplies, Power Factor Correction (PFC) Stages, Solar Inverters and Micro-Inverters, Battery Chargers and Battery Management, Digital Lighting and Electronic Ballasts, Uninterruptible Power Supplies (UPS).
AC-DC Switch-Mode Power Supplies
The DSPIC33EP16GS506T-I/PT is architected for AC-DC SMPS control: its interconnected high-speed PWM supports phase-shifted full-bridge, LLC, and flyback topologies, while the integrated comparators provide cycle-by-cycle overcurrent protection in hardware with sub-microsecond response - faster than any software interrupt path. The on-chip ADC with programmable gain amplifiers samples output voltage and current feedback without external signal-conditioning ICs. In a typical offline flyback or LLC power supply, the DSC executes voltage-mode or current-mode control loops at switching frequencies in the hundreds of kHz range while simultaneously managing soft-start, burst mode, and fault logging. Because 16KB of Flash is sufficient for single-loop control firmware, the part delivers digital-power flexibility (programmable regulation, adaptive dead-time, communication-based telemetry) at a cost point close to analog controllers.
Recommended
Power Factor Correction (PFC) Stages
For boost-type PFC front ends, the DSPIC33EP16GS506T-I/PT provides the deterministic sampling and fast PWM update rates required to track the rectified line waveform. The ADC can be triggered synchronously with the PWM period by hardware, eliminating software jitter that degrades THD, and the PGA boosts small shunt-current signals to match the ADC input range. The 70 MIPS core executes average-current-mode control including input-voltage feedforward within each switching cycle. Hardware comparators handle inrush and overcurrent faults independently of the CPU, meeting safety expectations for offline conversion. The 3.0V to 3.6V supply and -40C to +85C industrial range suit sealed power-supply enclosures. 16KB Flash accommodates PFC plus housekeeping tasks such as brown-out detection and startup sequencing.
Recommended
Solar Inverters and Micro-Inverters
Grid-tied solar conversion requires coordinated DC-DC maximum-power-point tracking and DC-AC inversion with grid synchronization - a workload the DSPIC33EP16GS506T-I/PT handles with its interconnected PWM modules generating complementary outputs with programmable dead-time for the H-bridge, while the ADC samples grid voltage and current for PLL synchronization. The multiple internal bus architecture keeps control-loop execution deterministic at 70 MIPS. Hardware comparator inputs enable rapid anti-islanding and overcurrent shutdown required by grid codes. The 64-pin TQFP provides enough I/O for gate-drive signals, relay control, and auxiliary sensing without external port expanders. For firmware growth beyond 16KB, the pin-compatible DSPIC33EP64GS506 family allows the same PCB to be populated with a larger-Flash variant.
Recommended
Battery Chargers and Battery Management
Multi-chemistry battery chargers benefit from the DSPIC33EP16GS506T-I/PT combination of precise analog acquisition and programmable charging profiles. The ADC with PGA reads battery current through low-value shunts, and the high-resolution interconnected PWM implements constant-current/constant-voltage phases with smooth transitions managed in firmware. Hardware comparators provide independent short-circuit and overtemperature protection thresholds. Because charging algorithms are pure software, the same 16KB-flash hardware supports Li-ion, lead-acid, and NiMH profiles, and field updates are possible through ICSP or self-programming. The 2KB RAM holds state machines and logging buffers for charge-history telemetry over the serial I/O ports. Industrial temperature rating of -40C to +85C covers outdoor charging infrastructure.
Recommended
Digital Lighting and Electronic Ballasts
Resonant lamp ballasts and high-current LED drivers use the DSPIC33EP16GS506T-I/PT to generate phase-shifted or frequency-modulated resonant half-bridge waveforms with hardware dead-time control, minimizing switching losses. The interconnected PWM-to-comparator links enable fast arc/lamp fault protection without CPU latency, and the ADC monitors lamp current and bus voltage every cycle for closed-loop brightness regulation. The 3.3V controller consumes modest quiescent power, easing standby-power compliance targets in always-connected luminaires. The 64-TQFP footprint supports DALI or serial interfaces on the two serial I/O ports for dimming communication. Flash program memory allows one hardware platform to serve multiple lamp wattages through firmware variants, simplifying manufacturing.
Recommended
Uninterruptible Power Supplies (UPS)
In line-interactive and double-conversion UPS designs, the DSPIC33EP16GS506T-I/PT simultaneously controls the AC-DC rectifier, DC-AC inverter, and transfer switch logic. Its four external interrupt lines and fast comparator inputs implement line-failure detection and bypass transfer with hardware-level response. The interconnected high-speed PWM generates the inverter SPWM waveform while the ADC samples output voltage for THD-corrective control, all within the 70 MIPS execution budget. Seven timers coordinate battery-test scheduling, fan control, and watchdog supervision. The industrial -40C to +85C rating and FuSa-supported GS family positioning assist reliability-driven UPS programs. When the control firmware expands with communication protocols, the pin-compatible 64KB Flash GS506 variant drops onto the identical PCB.
Recommended
Recommended Products Summary
Engineering reference data for DSPIC33EP16GS506T-I/PT — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | DSPIC33EP16GS506-I/PT | DSPIC33EP16GS506T-E/PT | DSPIC33EP64GS506-I/PT |
|---|---|---|---|---|
| Package | 64-TQFP (10x10 mm) | 64-TQFP (10x10 mm) - same | 64-TQFP (10x10 mm) - same | 64-TQFP (10x10 mm) - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Program Memory (Flash) | 16 KB | 16 KB | 16 KB | 64 KB |
| Performance | 70 MIPS | 70 MIPS | 70 MIPS | 70 MIPS |
| Operating Temperature | -40C to +85C | -40C to +85C | -40C to +125C | -40C to +85C |
| Packaging Format | Tape & Reel | Tube/Tray | Tape & Reel | Tube/Tray |
| 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 |
Key Differentiators
- Purpose-built digital-power peripheral interconnect (vs DSPIC33EP16GS506-I/PT)
- Extended temperature option on same footprint (vs DSPIC33EP16GS506T-E/PT)
- Cost-optimized 16KB Flash vs 64KB sibling (vs DSPIC33EP64GS506-I/PT)
Design Notes
Connect and decouple every VDD/VSS pair - per the Northern Software ICSP summary, all VSS and VDD pins must be connected for both operation and programming. Place a 0.1uF ceramic capacitor at each VDD pin within 2 mm of the pin, plus one bulk 4.7uF-10uF capacitor near the device. In digital-power layouts, keep the controller ground reference on a quiet analog island connected to the power ground at a single star point to prevent PWM switching currents from corrupting ADC readings.
ICSP pairing errors are the most common bring-up failure: the device has multiple PGECx/PGEDx pairs, and the programming clock and data MUST come from the same numbered pair (e.g., ICSPCLK on PGEC2 with ICSPDAT on PGED2). Mismatched pairs cause silent programming failures. Also note factory lead time is approximately 16 weeks for direct Microchip orders, so qualify a second distributor source or hold buffer stock for production ramps.
Estimated: at 70 MIPS with typical I/O loading, controller power dissipation is on the order of 150-250 mW (VDD 3.3V x tens of mA), which the 64-TQFP 10x10 mm package dissipates with a modest 2-oz copper pour; junction rise stays well below 20C even in +85C ambient. Thermal design effort should instead target the power stage (MOSFETs, magnetics), not the DSC. Verify with actual current measurement on your firmware's clock configuration.
Keep ADC input traces short and route them away from PWM gate-drive traces; the integrated PGA gains small shunt signals, so injected switching noise appears amplified at the converter. Use the hardware comparator interconnect rather than software polling for overcurrent protection - the hardware path reacts in sub-microsecond time and is immune to firmware stalls, which matters for MOSFET safe-operating-area compliance in the power stage.
Compliance Information
Compliance data not explicitly stated in provided web data; Microchip standard commercial parts are typically RoHS-compliant but this must be confirmed on the official product page before relying on it.
