You are here

User Module Datasheet: Enhanced 8-Bit PWM Dead Band Datasheet PWMDB8L V 1.10 (CY8C21x45, CY8C22x45, CY8C28xxx, CY8CTMA140, CY8CTMA30xx) | Cypress Semiconductor

User Module Datasheet: Enhanced 8-Bit PWM Dead Band Datasheet PWMDB8L V 1.10 (CY8C21x45, CY8C22x45, CY8C28xxx, CY8CTMA140, CY8CTMA30xx)

Last Updated: 
Jun 02, 2014
Version: 
1.10
Features and Overview
  • 8-bit general purpose pulse width modulator (PWM) with 8-bit dead band generator, occupies one PSoC block
  • Combines the counter and deadband functions in one digital block with limited deadband width selection
  • Phase1 (PH1) and Phase2 (PH2) under-lapped outputs track the frequency of the generated PWM signal
  • Programmable duty cycle
  • Programmable dead time
  • Dead Band Kill input drives Phase1 (PH1) and Phase2 (PH2) outputs low
  • Has one-shot/multi-shot feature
  • Counter clocking up to 48 MHz
  • Interrupt option triggered on rising edge of the PWM Phase1 signal or Kill input
     

The Enhanced 8-Bit PWM Dead Band User Module (PWMDB8L) is an enhanced version of the PWM8 User Module that supports the deadband in one digital block. It has improved features like one-shot or multi-shot. The pulse width modulator gives a programmable period and pulse width input signal to the dead band generator. The dead band generator outputs two underlapped signals, with programmable dead time at the same frequency as the input signal. When asserted, the Dead Band Kill input will drive the Phase1 and Phase2 output signals low. The clock and enable signals can be selected from several sources. The Phase1 and Phase2 output signals can be routed to the external pin ports or to the global output buses for internal use by other user modules. An interrupt can be programmed to effectively trigger on the rising edge of the PWM Phase1 signal or Kill input of the PWM module.

Translated documents are for reference only. We recommend that you refer to the English-language version of a document if you are engaged in development of a design.