dsPIC33EPXXGS50X is a?SMPS & Digital Power Conversion Digital Signal Controller. These devices offer features supporting common, multi-loop digital switch-mode power supplies (SMPS) and other digital power-conversion applications such as:

? AC to DC Converters
? DC to DC Converters
? Power Factor Correction (PFC)
? Uninterruptible power supply (UPS)
? Inverters
? Embedded Power-Supply Controllers
? Arc Fault Detection

Operating Conditions ? ? ? ? ?

  3.0V to 3.6V, -40°C to +85°C, DC to 70 MIPS ? ? ??

  3.0V to 3.6V, -40°C to +125°C, DC to 60 MIPS

? ? ? ? ? ? ? ? ? ?Flash Architecture

  64K Flash Program Memory

Core: 16-Bit dsPIC33E CPU ??

  Two 40-Bit Wide Accumulators

  Code-Efficient (C and Assembly) Architecture ? ? ? ? ? ? ? ? ? ? ? ? ?

  Single-Cycle (MAC/MPY) with Dual Data Fetch ? ? ? ? ??

  Single-Cycle Mixed-Sign MUL Plus Hardware Divide ? ? ? ? ?

  32-Bit Multiply Support ? ? ? ? ?

  Two Additional Working Register Sets (reduces context switching)

High-Speed PWM ? ? ? ? ? ? ? ? ?

  Individual Time Base and Duty Cycle for each PWM ? ? ? ? ??

  1.04 ns PWM Resolution (frequency, duty cycle, dead time and phase) ? ? ? ? ??

  Supports Center-Aligned, Redundant, Complementary and True Independent Output modes ? ? ? ??

  Independent Fault and Current-Limit Inputs ? ? ? ??

  Output Override Control ? ? ? ? ??

  PWM Support for AC/DC, DC/DC, Inverters, PFC?and Lighting

? ? ? ? ? ? ? ? ?Advanced Analog Features ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ?

  High-Speed ADC module

  12-bit with 4 dedicated SAR ADC cores and one shared SAR ADC core

  Configurable resolution (up to 12-bit) for each ADC core

  Up to 3.25 Msps conversion rate per channel at 12-bit resolution

  Dedicated result buffer for each analog channel

  Flexible and independent ADC trigger sources

  Two digital comparators

  Two oversampling filters for increased resolution ??

  ADC with Early Interrupt feature. ? ?

? ? ?Four Rail-to-Rail Comparators with Hysteresis:

  Dedicated 12-bit Digital-to-Analog Converter (DAC) for each analog?comparator

  DAC reference outputs

  External reference inputs ? ? ? ? ??

? ? ?Two Programmable Gain Amplifiers:?

  Single-ended or independent ground reference

  Five selectable gains (4x, 8x, 16x, 32x and 64x)

  40 MHz gain bandwidth

Interconnected SMPS Peripherals

  Reduces CPU Interaction to Improve Performance

  Flexible PWM Trigger Options for ADC Conversions

High-Speed Comparator Truncates PWM (15 ns typical):

  ?Supports Cycle-by-Cycle Current mode control

  ?Current Reset mode (variable frequency)

Timers/Output Compare/Input Capture

  16-Bit and up to Two 32-Bit Timers/Counters

  Output Compare (OC) modules, Configurable as Timers/Counters

  Input Capture (IC) modules