PIC18F4431-E/ML Microchip Technology, PIC18F4431-E/ML Datasheet - Page 173

• Manufacturer Part Number: PIC18F4431-E/ML
• Description: IC MCU FLASH 8KX16 44QFN
• Manufacturer: Microchip Technology
• Series: PIC® 18Fr

Specifications of PIC18F4431-E/ML

• Core Processor: PIC
• Core Size: 8-Bit
• Speed: 40MHz
• Connectivity: I²C, SPI, UART/USART
• Peripherals: Brown-out Detect/Reset, LVD, Power Control PWM, QEI, POR, PWM, WDT
• Number Of I /o: 36
• Program Memory Size: 16KB (8K x 16)
• Program Memory Type: FLASH
• Eeprom Size: 256 x 8
• Ram Size: 768 x 8
• Voltage - Supply (vcc/vdd): 4.2 V ~ 5.5 V
• Data Converters: A/D 9x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 125°C
• Package / Case: 44-QFN
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

18.0
The Power Control PWM module simplifies the task of
generating
Modulated (PWM) outputs for use in the control of
motor controllers and power conversion applications.
In particular, the following power and motion control
applications are supported by the PWM module:
• Three-Phase and Single-Phase AC Induction
• Switched Reluctance Motors
• Brushless DC (BLDC) Motors
• Uninterruptible Power Supplies (UPS)
• Multiple DC Brush Motors
 2010 Microchip Technology Inc.
Motors
POWER CONTROL PWM
MODULE
multiple,
synchronized
Pulse-Width
PIC18F2331/2431/4331/4431
The PWM module has the following features:
• Up to eight PWM I/O pins with four duty cycle
• Up to 14-bit resolution, depending upon the PWM
• “On-the-fly” PWM frequency changes.
• Edge and Center-Aligned Output modes.
• Single-Pulse Generation mode.
• Programmable dead-time control between paired
• Interrupt support for asymmetrical updates in
• Output override for Electrically Commutated
• Special Event Trigger comparator for scheduling
• PWM outputs disable feature sets PWM outputs
The Power Control PWM module supports three PWM
generators
PIC18F2331/2431 devices, and four generators and
eight channels on PIC18F4331/4431 devices. A simpli-
fied block diagram of the module is shown in
Figure
the module hardware is configured for each PWM
output pair for the Complementary and Independent
Output modes.
Each functional unit of the PWM module will be
discussed in subsequent sections.
generators. Pins can be paired to get a complete
half-bridge control.
period.
PWMs.
Center-Aligned mode.
Motor (ECM) operation; for example, BLDC.
other peripheral events.
to their inactive state when in Debug mode.
18-1.
Figure 18-2
and
six
and
output
Figure 18-3
DS39616D-page 173
channels
show how
on