DSPIC33EP16GS505T-E/PT - 16-bit DSC, 70 MIPS Digital Power | Microchip
MPN: DSPIC33EP16GS505T-E/PT ✓ نشطDSPIC33EP16GS505T-E/PT نظرة عامة
A Digital Signal Controller combines the computational throughput of a DSP core with the peripheral set and deterministic behavior of a microcontroller. In the power-management hierarchy, a DSC sits above general-purpose MCUs for closed-loop conversion tasks, replacing analog control loops with firmware-executed compensation in switch-mode power supplies (SMPS), power factor correction (PFC) stages, and digital lighting or battery chargers.
Key features include an interconnected high-speed PWM module purpose-built for digital power topologies, a high-speed 10/12-bit ADC with an embedded PGA that removes external signal-conditioning circuitry, and on-chip comparators that enable cycle-by-cycle current limiting. The dsPIC33EP core executes one instruction per cycle at up to 70 MIPS, providing the loop bandwidth needed for interleaved and multiphase converters.
Technically, the device belongs to the dsPIC33EP16GS50x family - 16-bit Digital Signal Controllers for digital power applications with interconnected high-speed PWM, ADC, PGA and comparators, per the Microchip family datasheet. Peripherals are internally interconnected, allowing fault and trigger signals to propagate without CPU intervention, which shortens protection latency and reduces interrupt load. The -E extended temperature grade (up to +125C ambient) and AEC-Q100 qualification reported by distributors make it suitable for automotive power modules.
Typical applications include interleaved power factor correction (Microchip publishes a 350 W universal-input interleaved PFC reference design for this family), digitally controlled AC-DC and DC-DC SMPS, and LED drivers or battery chargers requiring fast, deterministic control loops.
Design consideration: budget the 16 KB Flash carefully - digital power compensation routines, state machines, and communication stacks share a small program space; use compiler optimization and fixed-point libraries sized for the GS505 memory class.
This page synthesizes distributor inventory data, family-level design guidance, and drop-in substitution analysis not consolidated in the manufacturer datasheet.
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الطرازات في هذه السلسلة
طرازات من نفس السلسلة متوافقة تمامًا مع DSPIC33EP16GS505T-E/PT (نفس عامل الشكل والبصمة) — يختلف في Operating Temperature, Package, RoHS Status.
DSPIC33EP16GS505-I/PT
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عرض ورقة البيانات ←DSPIC33EP16GS505T-E/PT الحدود القصوى والخصائص الكهربائية
| Core Architecture | 16-bit dsPIC33EP DSC |
| Max CPU Speed | 70 MIPS (Mouser listing); 60 MIPS (DigiKey listing) |
| Program Memory (Flash) | 16 KB (16K x 8) |
| جهد التغذية | 3.3 V |
| العلبة | 48-TQFP-EP (7x7 mm), exposed pad |
| نوع التركيب | Surface Mount |
| درجة حرارة التشغيل | -40C to +125C (E extended grade) |
| Qualification | Automotive, AEC-Q100 (per distributor listing) |
| Family | dsPIC33EP16GS50x (Digital Power SMPS) |
| Specialized Peripherals | High-speed interconnected PWM, high-speed ADC, PGA, comparators, DAC |
| Packaging | Tape & Reel (T suffix) |
| Programming / Debug | ICSP via PGEC/PGED, MPLAB SNAP / ICD / PICkit |
| حالة RoHS | ROHS3 Compliant |
| Typical Application Domain | Digital Switch-Mode Power Supplies, PFC, LED drivers, battery chargers |
| Functional Safety Support | FuSa class part (per DigiKey listing) |
تكوين أطراف DSPIC33EP16GS505T-E/PT
| دبوس 1 | MCLR — Master clear reset / programming voltage input |
| دبوس 2 | AN0/VREF+/CN2/RB0 — Analog input 0 / positive ADC reference / CN2 / port RB0 |
| دبوس 3 | AN1/VREF-/CN3/RB1 — Analog input 1 / negative ADC reference / CN3 / port RB1 |
| دبوس 4 | AN2/SS1/CN4/RB2 — Analog input 2 / SPI slave select 1 / CN4 / port RB2 |
| دبوس 5 | AN3/INDX/CN5/RB3 — Analog input 3 / encoder index / CN5 / port RB3 |
| دبوس 6 | AN4/QEA/CN6/RB4 — Analog input 4 / encoder phase A / CN6 / port RB4 |
| دبوس 7 | VDD — Positive supply (3.3 V) |
| دبوس 8 | VSS — Ground reference |
| دبوس 9 | OSC1/CLKI/CN7/RA2 — Oscillator crystal input / external clock input |
| دبوس 10 | OSC2/CLKO/RC15 — Oscillator crystal output / clock output |
| دبوس 11 | VDD — Positive supply (3.3 V) |
| دبوس 12 | VSS — Ground reference |
| دبوس 13 | AN5/QEB/CN7/RB5 — Analog input 5 / encoder phase B / port RB5 |
| دبوس 14 | PGEC1/AN6/OCM1A/RB6 — Programming clock 1 / analog input 6 / PWM output / port RB6 |
| دبوس 15 | PGED1/AN7/OCM1B/RB7 — Programming data 1 / analog input 7 / PWM output / port RB7 |
| دبوس 16 | AN8/OCM2A/RB8 — Analog input 8 / PWM output / port RB8 |
| دبوس 17 | AN9/OCM2B/RB9 — Analog input 9 / PWM output / port RB9 |
| دبوس 18 | TCK/RP20/RC0 — JTAG test clock / remappable pin RP20 / port RC0 |
| دبوس 19 | TDI/RP21/RC1 — JTAG test data in / remappable pin RP21 / port RC1 |
| دبوس 20 | TDO/RP22/RC2 — JTAG test data out / remappable pin RP22 / port RC2 |
| دبوس 21 | RP23/RC3 — Remappable peripheral pin RP23 / port RC3 |
| دبوس 22 | RP24/RC4 — Remappable peripheral pin RP24 / port RC4 |
| دبوس 23 | AVDD — Analog supply (3.3 V) |
| دبوس 24 | AVSS — Analog ground |
| دبوس 25 | AN10/RP25/RC5 — Analog input 10 / remappable pin RP25 / port RC5 |
| دبوس 26 | AN11/RP26/RC6 — Analog input 11 / remappable pin RP26 / port RC6 |
| دبوس 27 | AN12/RP27/RC7 — Analog input 12 / remappable pin RP27 / port RC7 |
| دبوس 28 | AN13/RP28/RC8 — Analog input 13 / remappable pin RP28 / port RC8 |
| دبوس 29 | AN14/RP29/RC9 — Analog input 14 / remappable pin RP29 / port RC9 |
| دبوس 30 | AN15/RTCC/RB10 — Analog input 15 / RTCC auxiliary / port RB10 |
| دبوس 31 | CVREF/AN16/RB11 — Comparator voltage reference output / analog input 16 / port RB11 |
| دبوس 32 | PGEC2/RP32/RB12 — Programming clock 2 / remappable pin RP32 / port RB12 |
| دبوس 33 | PGED2/RP33/RB13 — Programming data 2 / remappable pin RP33 / port RB13 |
| دبوس 34 | RP34/RB14 — Remappable peripheral pin RP34 / port RB14 |
| دبوس 35 | RP35/RB15 — Remappable peripheral pin RP35 / port RB15 |
| دبوس 36 | VSS — Ground reference |
| دبوس 37 | VDD — Positive supply (3.3 V) |
| دبوس 38 | RP38/RF4 — Remappable peripheral pin RP38 / port RF4 |
| دبوس 39 | RP39/RF5 — Remappable peripheral pin RP39 / port RF5 |
| دبوس 40 | DA1/RP40/RF6 — DAC output 1 / remappable pin RP40 / port RF6 |
| دبوس 41 | RP41/RF7 — Remappable peripheral pin RP41 / port RF7 |
| دبوس 42 | PWM1H/RP42/RF8 — High-speed PWM1 high output / remappable pin RP42 / port RF8 |
| دبوس 43 | PWM1L/RP43/RF9 — High-speed PWM1 low output / remappable pin RP43 / port RF9 |
| دبوس 44 | FLTA/RP44/RF10 — PWM fault input A / remappable pin RP44 / port RF10 |
| دبوس 45 | PWM2H/RP45/RF11 — High-speed PWM2 high output / remappable pin RP45 / port RF11 |
| دبوس 46 | PWM2L/RP46/RF12 — High-speed PWM2 low output / remappable pin RP46 / port RF12 |
| دبوس 47 | FLTB/RP47/RF13 — PWM fault input B / remappable pin RP47 / port RF13 |
| دبوس 48 | EP (exposed pad) — Exposed thermal pad - connect to VSS for thermal and ground integrity |
التطبيقات النموذجية
DSPIC33EP16GS505T-E/PT مناسب لـ 6 التطبيقs: Interleaved Power Factor Correction (PFC), Digitally Controlled Switch-Mode Power Supplies (SMPS), Automotive Power Conversion Modules, Digital LED Drivers and Lighting, Battery Chargers and Battery Management, Industrial Motor-Adjacent Power Stages and Instrumentation.
Interleaved Power Factor Correction (PFC)
The DSPIC33EP16GS505T-E/PT is the control engine for Microchip's interleaved PFC reference design, which accepts universal AC input and delivers up to 350 W of regulated high-voltage DC. Its interconnected high-speed PWM manages multiple interleaved phases with precise dead-time and phase staggering, while the high-speed ADC with programmable gain amplifier samples inductor and bus currents with low latency for tight current-loop control. On-chip comparators enforce cycle-by-cycle overcurrent limits without CPU intervention, shortening fault response to within one switching period. Firmware-based compensation lets designers tune loop dynamics without changing analog components.
موصى به
Digitally Controlled Switch-Mode Power Supplies (SMPS)
For AC-DC and DC-DC converters, the GS505 replaces analog control ICs with a firmware control loop running at up to 70 MIPS. The high-speed PWM module provides complementary outputs, dead-time insertion, and fault trip inputs directly interconnected to comparators, enabling topologies such as buck, boost, half-bridge, and LLC. The 12-bit high-speed ADC with PGA converts current-shunt signals without external op-amps, and the extended -40C to +125C temperature grade suits enclosed power supplies with hot spots. Digital control allows adaptive compensation, soft-start profiling, and telemetry across load and line conditions.
موصى به
Automotive Power Conversion Modules
Distributor listings identify this part as automotive-grade with AEC-Q100 qualification and the extended -E temperature grade (-40C to +125C), making it appropriate for automotive auxiliary power converters: LED headlamp drivers, DC-DC modules for infotainment, and battery subsystem supervision. The 48-TQFP-EP exposed pad aids thermal dissipation on high-copper PCBs, while the hardware comparators provide fast protection paths required by ISO functional-safety-oriented power designs. Firmware-based control also supports fault diagnostics and condition reporting demanded in automotive power architectures, with deterministic PWM/ADC interconnect minimizing software latency in the safety path.
موصى به
Digital LED Drivers and Lighting
High-brightness LED drivers require precise current regulation, dimming resolution, and fast fault shutdown - all native strengths of the GS505. The high-speed PWM generates both the power-conversion switching waveform and high-resolution dimming channels, while the ADC-with-PGA senses LED current accurately across a wide dynamic range. Comparators implement instant overcurrent or open-circuit protection. Digital implementation allows multiple dimming strategies (trailing-edge, CCR, PWM) in one firmware image, and the -E temperature grade tolerates luminaire driver enclosures that regularly exceed 85C ambient near the LEDs and electrolytics.
موصى به
Battery Chargers and Battery Management
Multi-chemistry battery chargers benefit from the GS505's combination of accurate current/voltage sensing and programmable charge profiles stored in firmware. The high-speed ADC with PGA reads charge current through low-value shunts, the PWM drives the buck or flyback charging stage with adaptive duty resolution, and comparators guard against overcurrent conditions within one switching cycle. CC/CV transitions, temperature-qualified charging via NTC inputs, and termination algorithms execute in the 16 KB Flash without external EEPROM in many designs. The extended temperature grade supports chargers operating in hot vehicle cabins or industrial cabinets.
موصى به
Industrial Motor-Adjacent Power Stages and Instrumentation
In industrial equipment, the GS505 controls front-end power stages feeding servo drives, heaters, and process instrumentation. Its 70 MIPS core executes fixed-point filtering and compensation while the interconnected peripherals offload time-critical PWM and protection tasks from software, improving determinism in electrically noisy factory environments. The -40C to +125C rating and AEC-Q100-based qualification provide margin for control cabinets near motors and drives. FPGA-free digital control also simplifies compliance documentation because behavior is fully defined in reviewable firmware rather than discrete analog component tolerances.
موصى به
ملخص المنتجات الموصى بها
بيانات مرجعية هندسية لـ DSPIC33EP16GS505T-E/PT — المقارنة وإرشادات التصميم ومعلومات الامتثال.
دليل الاختيار
المقارنة مع البدائل
| المعامل | هذا المنتج | DSPIC33EP16GS505-I/PT |
|---|---|---|
| Package | 48-TQFP-EP (7x7 mm) | 48-TQFP-EP (7x7 mm) - identical |
| Brand | Microchip Technology | Microchip Technology - same |
| Flash Memory | 16 KB (16K x 8) | 16 KB (16K x 8) |
| Core Performance | Up to 70 MIPS (16-bit DSC) | Up to 70 MIPS (16-bit DSC) |
| Supply Voltage | 3.3 V | 3.3 V |
| Operating Temperature | -40C to +125C (E extended grade) | -40C to +85C (I industrial grade) |
| Packaging | Tape & Reel (T suffix) | Tray / Tape & Reel options |
أبرز الفروقات
- Extended -E temperature grade up to +125C (مقابلDSPIC33EP16GS505-I/PT)
- Purpose-built digital-power peripheral interconnect (مقابلDSPIC33EP16GS505-I/PT (family-identical))
- AEC-Q100-listed automotive qualification with tape-and-reel supply (مقابلDSPIC33EP16GS505-I/PT)
ملاحظات التصميم
Decouple every VDD pin pair with a 0.1 uF ceramic capacitor placed within 2 mm of the pin, plus a single 4.7-10 uF bulk capacitor near the device. AVDD must be filtered separately - a ferrite bead plus 10 uF and 0.1 uF on AVDD materially improves ADC accuracy because the ADC reference noise appears directly in current-sense readings. Estimated: at 70 MIPS the core draws on the order of tens of mA; size the 3.3 V rail for the full peripheral set active, not just idle current.
Solder the exposed pad (pin 48 position) to a grounded copper pour with an array of thermal vias. In digital-power layouts, keep the PWM output traces (PWM1H/L, PWM2H/L) short and away from the ADC sense lines; the analog inputs (AN0-AN15) should be routed as a quiet island referenced to AVSS. Place shunt-sense filters (e.g., 100 ohm + 1 nF) close to the analog pins to protect against switching-node transients before they reach the PGA inputs.
Do not leave MCLR floating - use a 10 kohm pull-up to VDD and include the ICSP header (MCLR, PGEC1, PGED1, VDD, VSS) for in-circuit programming with MPLAB SNAP. Verify PGEC1/PGED1 pin selection in the configuration words matches your header wiring; a mismatch is the most common bring-up failure. Remember the 16 KB Flash budget: enable XC16 compiler optimization early, as digital-power compensation code plus fault handlers can approach the limit before hardware debug begins.
معلومات الامتثال
ROHS3 compliant per full-electronic.com listing. Hotenda listing identifies the part as Automotive, AEC-Q100, dsPIC33EP Series. REACH, halogen-free, and conflict-minerals status not stated in retrieved data.
