TLE9877QXA20_15 Datasheet, PDF (58/122 Pages) Infineon Technologies AG – Microcontroller with LIN and BLDC MOSFET Driver for Automotive Applications

18
Capture/Compare Unit 6 (CCU6)
TLE9877QXA20
Capture/Compare Unit 6 (CCU6)
18.1
Feature Set Overview
This section gives an overview over the different building blocks and their main features.
Timer 12 Block Features
• Three capture/compare channels, each channel can be used either as capture or as compare channel
• Generation of a three-phase PWM supported (six outputs, individual signals for high-side and low-side
switches)
• 16-bit resolution, maximum count frequency = peripheral clock
• Dead-time control for each channel to avoid short-circuits in the power stage
• Concurrent update of T12 registers
• Center-aligned and edge-aligned PWM can be generated
• Single-shot mode supported
• Start can be controlled by external events
• Capability of counting external events
• Multiple interrupt request sources
• Hysteresis-like control mode
Timer 13 Block Features
• One independent compare channel with one output
• 16-bit resolution, maximum count frequency = peripheral clock
• Concurrent update of T13 registers
• Can be synchronized to T12
• Interrupt generation at period-match and compare-match
• Single-shot mode supported
• Start can be controlled by external events
• Capability of counting external events
Additional Specific Functions
• Block commutation for brushless DC-drives implemented
• Position detection via hall-sensor pattern
• Noise filter supported for position input signals
• Automatic rotational speed measurement and commutation control for block commutation
• Integrated error handling
• Fast emergency stop without CPU load via external signal (CTRAP)
• Control modes for multi-channel AC-drives
• Output levels can be selected and adapted to the power stage
18.2
Introduction
The CCU6 unit is made up of a Timer T12 block with three capture/compare channels and a Timer T13 block with
one compare channel. The T12 channels can independently generate PWM signals or accept capture triggers, or
they can jointly generate control signal patterns to drive DC-motors or inverters.
A rich set of status bits, synchronized updating of parameter values via shadow registers, and flexible generation
of interrupt request signals provide efficient software-control.
Data Sheet
58
Rev. 1.0, 2015-04-30