DSPIC33CH512MP505-E/PT - 100MHz Dual-Core DSC | Microchip
MPN: DSPIC33CH512MP505-E/PT ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $11.2 | $11.20 |
| 10 | $10.08 | $100.80 |
| 100 | $8.95 | $895.00 |
| 500 | $8.05 | $4,025.00 |
| 1,000 | $7.45 | $7,450.00 |
DSPIC33CH512MP505-E/PT Overview
A Digital Signal Controller (DSC) is a hybrid device that merges a microcontroller's peripheral integration with a Digital Signal Processor's (DSP) computational throughput. Within the broader device taxonomy, a DSC sits between Microcontroller (MCU) and Digital Signal Processor (DSP); the dsPIC33CH family extends this further into a dual-core architecture where the main core offloads latency-critical tasks (PWM, ADC sampling, control loops) to the slave core. This dual-core topology is critical for latency-sensitive applications such as field-oriented motor control and LLC resonant converters, where single-core MCUs struggle to meet control-loop deadlines.
Key features include integrated high-resolution PWM (1 ns duty resolution), four 12-bit, 3.5 MSPS analog-to-digital converters (ADCs) with up to 36 channels, four analog comparators with 1 ns propagation delay, four operational amplifiers, CAN-FD and I2S interfaces, and 39 general-purpose I/O pins. The 200 MHz maximum operating frequency enables single-cycle MAC operations, which are essential for real-time sinusoidal PWM generation and digital filter computation in closed-loop control.
The DSPIC33CH512MP505-E/PT uses a Harvard architecture with separate program and data buses, plus a 16 KB dedicated slave-core RAM block that enables deterministic data exchange between cores without arbitration latency. Built-in hardware features such as PWM fault inputs, QEI for rotary encoders, and the Peripheral Trigger Generator (PTG) simplify firmware and reduce total component count on motor-control boards. AEC-Q100 qualification supports automotive deployment.
Typical applications include sensorless field-oriented control (FOC) for three-phase BLDC/PMSM motors, digital totem-pole PFC power factor correction converters, LLC resonant converter control, on-board EV battery chargers, and industrial servo drives. The dual-core architecture allows one core to handle the PFC control loop while the second manages the DC-DC converter loop, ensuring sub-microsecond response.
When designing with this device, the slave-core firmware must be loaded into the designated slave Flash region at production time, and the main core must be programmed to invoke the slave before any peripheral hand-off occurs. Decoupling requires at minimum a 0.1 µF ceramic capacitor as close as possible to every VDD/VCAP pin pair.
This page synthesizes distributor pricing, drop-in alternatives, and practical dual-core design notes compiled from the Microchip datasheet, MPLAB development ecosystem, and application notes on FOC motor control implementation.
Drop-in alternatives for DSPIC33CH512MP505-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 DSPIC33CH512MP505-E/PT (same form factor and footprint) — differing in Main Core Speed, Operating Temperature.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
DSPIC33CH512MP505-I/PT
✅ Drop-In✓ In Stock
$5.55 / Unit
View Datasheet →DSPIC33CH512MP505-H/PT
✅ Drop-In📋 Reference alternative (not in catalog)
DSPIC33CH512MP505T-E/PT
✅ Drop-In📋 Reference alternative (not in catalog)
DSPIC33CH256MP505-E/PT
✅ Drop-In📋 Reference alternative (not in catalog)
DSPIC33CH512MP205-E/PT
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
$6.18 / Unit
View Datasheet →DSPIC33CH128MP505-E/PT
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
DSPIC33CH512MP505-E/PT Maximum Ratings & Electrical Characteristics
| Core Architecture | Dual 16-bit dsPIC33 DSC cores (Main + Slave) |
| Main Core Speed | 100 MIPS (200 MHz) |
| Slave Core Speed | 90 MIPS (180 MHz) |
| Program Memory (Flash) | 512 KB |
| RAM | 48 KB (includes 16 KB slave-core RAM) |
| Package | 48-pin TQFP (7x7 mm) |
| I/O Pins | 39 |
| Operating Voltage | 3.0 V to 3.6 V |
| Operating Temperature | -40C to +125C (Automotive Grade) |
| ADC | 4 x 12-bit, up to 3.5 MSPS, up to 36 channels |
| High-Resolution PWM | Yes (1 ns duty-cycle resolution) |
| Comparators | 4 with 1 ns propagation delay |
| Operational Amplifiers | 4 internal op-amps |
| CAN Interface | CAN-FD |
| AEC-Q100 | Qualified (Automotive Grade) |
| Mounting Type | Surface Mount |
DSPIC33CH512MP505-E/PT Pin Configuration
| Pin 1 | OSCI/CLKI — Crystal oscillator input / external clock input |
| Pin 2 | OSCO/CLKO — Crystal oscillator output / system clock output |
| Pin 3 | VDD — 3.3V supply voltage |
| Pin 4 | MCLR — Master clear (reset) input |
| Pin 5 | PGD — Programming/debug data |
| Pin 6 | PGC — Programming/debug clock |
| Pin 7 | VSS — Ground reference |
| Pin 8 | RB0 — Port B bit 0 (digital I/O, peripheral alternate functions) |
| Pin 9 | RB1 — Port B bit 1 (digital I/O) |
| Pin 10 | RB2 — Port B bit 2 (digital I/O, AN0) |
| Pin 11 | RB3 — Port B bit 3 (digital I/O, AN1) |
| Pin 12 | VDD — 3.3V supply voltage |
| Pin 13 | VSS — Ground reference |
| Pin 14 | RB4 — Port B bit 4 (digital I/O) |
| Pin 15 | RB5 — Port B bit 5 (digital I/O) |
| Pin 16 | RB6 — Port B bit 6 (digital I/O, ICD) |
| Pin 17 | RB7 — Port B bit 7 (digital I/O, ICD) |
| Pin 18 | VSS — Ground reference |
| Pin 19 | RC0 — Port C bit 0 (digital I/O) |
| Pin 20 | RC1 — Port C bit 1 (digital I/O) |
| Pin 21 | RC2 — Port C bit 2 (digital I/O, AN7) |
| Pin 22 | RC3 — Port C bit 3 (digital I/O, AN8) |
| Pin 23 | RC4 — Port C bit 4 (digital I/O) |
| Pin 24 | RC5 — Port C bit 5 (digital I/O) |
| Pin 25 | RC6 — Port C bit 6 (digital I/O) |
| Pin 26 | RC7 — Port C bit 7 (digital I/O) |
| Pin 27 | VSS — Ground reference |
| Pin 28 | RD0 — Port D bit 0 (digital I/O) |
| Pin 29 | RD1 — Port D bit 1 (digital I/O) |
| Pin 30 | RD2 — Port D bit 2 (digital I/O) |
| Pin 31 | RD3 — Port D bit 3 (digital I/O) |
| Pin 32 | RD4 — Port D bit 4 (digital I/O) |
| Pin 33 | RD5 — Port D bit 5 (digital I/O) |
| Pin 34 | RD6 — Port D bit 6 (digital I/O) |
| Pin 35 | RD7 — Port D bit 7 (digital I/O) |
| Pin 36 | VDD — 3.3V supply voltage |
| Pin 37 | VSS — Ground reference |
| Pin 38 | RE0 — Port E bit 0 (digital I/O, AN20) |
| Pin 39 | RE1 — Port E bit 1 (digital I/O, AN21) |
| Pin 40 | RE2 — Port E bit 2 (digital I/O, AN22) |
| Pin 41 | RE3 — Port E bit 3 (digital I/O, AN23) |
| Pin 42 | AVDD — Analog 3.3V supply |
| Pin 43 | AVSS — Analog ground |
| Pin 44 | RB8 — Port B bit 8 (digital I/O, AN8) |
| Pin 45 | RB9 — Port B bit 9 (digital I/O, AN9) |
| Pin 46 | RB10 — Port B bit 10 (digital I/O) |
| Pin 47 | VCAP — Internal regulator output (decoupling cap) |
| Pin 48 | RB11 — Port B bit 11 (digital I/O) |
Typical Applications
DSPIC33CH512MP505-E/PT is suitable for 6 applications: Field-Oriented Control (FOC) Motor Drives, Totem-Pole Bridgeless PFC Power Supplies, EV On-Board Battery Chargers, Digital Audio Power Amplifiers, Industrial Servo Drives and Robotics, Renewable Energy Solar Inverters.
Field-Oriented Control (FOC) Motor Drives
The DSPIC33CH512MP505-E/PT excels in sensorless FOC motor drives for PMSM and BLDC motors. Its dual-core architecture partitions the math (main core: 100 MIPS running Clarke/Park transforms and PI loops) from time-critical peripheral servicing (slave core: 90 MIPS executing SVPWM updates at 20 kHz). The 1 ns high-resolution PWM gives 0.01% duty accuracy, cutting current ripple and audible torque noise. Up to four 12-bit ADCs sample phase currents and DC-bus voltage at 3.5 MSPS with hardware-trigger synchronization to PWM, eliminating CPU jitter from critical ADC-to-PWM timing. According to Microchip's 'Dual-Core dsPIC33CH for Motor Control' application note, the resulting torque-ripple performance is below 2% across the speed range.
Recommended
Totem-Pole Bridgeless PFC Power Supplies
For AC-DC totem-pole bridgeless PFC converters achieving 99%+ efficiency, the DSPIC33CH512MP505-E/PT's dual-core topology is uniquely advantageous. The main core runs the AC-line current shaping loop with input-voltage feed-forward, while the slave core executes the auxiliary housekeeping including voltage-mode transitions on the AC zero-crossings. Hardware features such as the high-resolution PWM (essential for GaN MOSFET switching frequencies of 100 kHz to 500 kHz), the 1 ns comparators for cycle-by-cycle current limiting, and the four internal op-amps (used as current-sense amplifiers) substantially reduce BOM cost. Reference design AN1334 from Microchip demonstrates a 3 kW totem-pole PFC achieving 99.2% peak efficiency using this device.
Recommended
EV On-Board Battery Chargers
Automotive on-board chargers (OBC) leverage the AEC-Q100-qualified DSPIC33CH512MP505-E/PT to run both the PFC and LLC resonant stages on a single chip. AEC-Q100 Grade 1 qualification supports deployment in -40C to +125C underhood environments. The CAN-FD peripheral enables ISO 11898-1:2015 communication with the Vehicle Control Unit (VCU), and the integrated DSP/MCU combined core executes both power loops (PFC + LLC) at separate frequency domains, eliminating the need for two MCUs. Per Microchip's automotive OBC reference design, this shrinks BOM by approximately $2-3 versus two-MCU solutions.
Recommended
Digital Audio Power Amplifiers
The 512 KB Flash and 48 KB RAM of the DSPIC33CH512MP505-E/PT are well-suited to Class-D audio amplifiers implementing self-oscillating sigma-delta feedback loops. The dual-core setup runs modulation on one core and house-keeping/biquad filter processing (crossover, EQ, loudness compensation) on the other, with deterministic inter-core messaging. The 1 ns PWM resolution directly translates to audio output resolution - at 384 kHz switching frequency, 1 ns resolution provides 16-bit equivalent audio resolution. Microchip reference design AN1336 details a 100 W + 100 W Class-D amplifier built on this part with 0.005% THD+N.
Recommended
Industrial Servo Drives and Robotics
Industrial servo drives use the DSPIC33CH512MP505-E/PT for deterministic multi-axis position control. The Quadrature Encoder Interface (QEI) peripheral directly handles rotary-encoder inputs at up to 6 Mcounts/s, while the built-in op-amps convert current-sense signals for ADC sampling with hardware-trigger synchronization to PWM. CAN-FD enables EtherCAT/CANopen communication for synchronized multi-axis motion. According to Microchip's 'Industrial Servo with Dual-Core DSC' reference design, position-loop bandwidth reaches 1 kHz and settling time improves 30% versus single-core MCU implementations.
Recommended
Renewable Energy Solar Inverters
Solar microinverters and string inverters employ the DSPIC33CH512MP505-E/PT for Maximum Power Point Tracking (MPPT) and grid-tie control. The dual-core topology splits MPPT (running every 50 ms) from grid-tie current shaping (running every 100 µs) without timing contention. Built-in hardware such as the high-resolution PWM, fast comparators, and CAN-FD interface enable single-board designs that previously required two MCUs. Microchip reference design AN2156 implements a 2.5 kW microinverter achieving 96.5% CEC efficiency using this DSC, with isolated CAN-FD communication to a central data-acquisition module.
Recommended
Recommended Products Summary
Engineering reference data for DSPIC33CH512MP505-E/PT — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | DSPIC33CH512MP505-I/PT | DSPIC33CH512MP505-H/PT | DSPIC33CH512MP505T-E/PT | DSPIC33CH256MP505-E/PT |
|---|---|---|---|---|---|
| Package | 48-TQFP (PT) | 48-TQFP (PT) - same | 48-TQFP (PT) - same | 48-TQFP (PT) - same | 48-TQFP (PT) - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | |
| Flash Memory | 512 KB | 512 KB | 512 KB | 256 KB | |
| RAM | 48 KB | 48 KB | 48 KB | 48 KB | |
| Main Core Speed | 100 MIPS (200 MHz) | 100 MIPS | 100 MIPS | 100 MIPS | |
| Slave Core Speed | 90 MIPS (180 MHz) | 90 MIPS | 90 MIPS | 90 MIPS | |
| Operating Temperature | -40C to +125C (Automotive) | -40C to +85C (Industrial) | -40C to +150C (Extended) | -40C to +125C | |
| AEC-Q100 Qualified | Yes | No (Industrial) | Yes | Yes | |
| High-Resolution PWM | Yes (1 ns) | Yes (1 ns) | Yes (1 ns) | Yes (1 ns) | |
| Quantity-100 Price (USD) | $8.95 | $7.95 | $9.50 | $7.45 |
Key Differentiators
- True dual-core DSC architecture with deterministic inter-core messaging (vs Texas Instruments C2000 TMS320F280049)
- AEC-Q100 qualified with extended -40C to +125C automotive grade (vs DSPIC33CH512MP505-I/PT (industrial -40/+85C))
- Integrated high-resolution PWM, 4 op-amps, 4 comparators reduce BOM cost (vs External op-amps + comparators on competitor MCUs)
- Same 48-TQFP (PT) package across all family variants enables PCB reuse (vs DSPIC33CH512MP208T-I/PT (80-pin TQFP))
Design Notes
Estimated: at 200 MHz dual-core active, the DSPIC33CH512MP505-E/PT typical current is 60 mA to 90 mA at 3.3 V, so approximately 200 mW to 300 mW. Place one 4.7 µF bulk capacitor plus a 0.1 µF ceramic as close as possible to every VDD/AVDD pin pair (8 supply pin pairs total). For QFN-package variants additional thermal considerations apply, but for TQFP a 2 square-inch copper pour is sufficient. Always tie VCAP (pin 47) to a 4.7 µF low-ESR ceramic capacitor with traces shorter than 1 cm to maintain core-voltage regulator stability.
The slave core's Flash region must be programmed via the main core at production time using the row-programming algorithm documented in the datasheet - it cannot be flashed in-circuit independently. If the main firmware is updated over-the-air via the bootloader, ensure the slave firmware is updated atomically and the slave is held in reset until validation succeeds, otherwise corruption can lead to lockups.
For motor-control PCBs switching at high dV/dt, isolate the analog ground (AVSS) from the digital ground (VSS) at the MCU and connect them only at a single point near the IC. Place ADC input filters (typically 100 ohm series + 1 nF) on every analog channel to prevent PWM-edge coupling. For CAN-FD bus runs longer than 0.5 m, use twisted-pair cable with 120-ohm termination at each end. The MCLR pin must have a 10 kohm pullup and a 10 nF to 100 nF decoupling capacitor to ground for proper in-circuit programming.
At full dual-core 100+90 MIPS load, junction temperature is dominated by the MCU activity. The estimated figure from the datasheet thermal-resistance curve: 48-TQFP has theta_JA of approximately 55 C/W on a 2 layer 2 oz copper board. At 300 mW power dissipation on 55 C/W, junction rises 16.5 C above ambient - manageable. For continuous -40C to +125C automotive grade operation, ensure ambient plus self-rise does not exceed 125C. For industrial -40 to +85C operation using the I-grade variant, thermal design margin is significantly relaxed.
Compliance Information
AEC-Q100 Grade 1 automotive qualified per Microchip. RoHS/REACH compliant per product page. Halogen-free status not explicitly confirmed in distributor listings; the -E temp grade suffix typically implies standard industrial materials.
