User Manual
37
Rev. 1.1
2019-03-18
TLE984xQX
Microcontroller with LIN and Power Switches for Automotive Applications
Power Management Unit (PMU)
6.3
Power Supply Generation (PGU)
As shown in the diagram below the Power Supply Generation consists of the following modules:
Submodules of PSG are:
•
Power Down Supply:
independent analog supply voltage generation for Power Control Unit logic, for
VDDP Regulator and for VDDC Regulator.
•
VPRE:
analog supply voltage pre-regulator. Purpose of this regulator is the power dissipation reduction for
the following regulator stages.
•
VDDP:
5V digital voltage regulator used for internal modules and all GPIOs.
•
VDDC:
1.5V digital voltage regulator used for internal microcontroller modules and core logic.
•
PCU:
Power Control Unit responsible for supervising and controlling 5V regulator and 1.5V regulator.
Figure 10 Power Supply Generation Block Diagram
6.3.1
Voltage Regulator 5.0V (VDDP)
This module represents the 5 V voltage regulator, which provides the pad supply for the parallel port pins and
other 5 V analog functions (e.g. LIN Transceiver).
PSG_Block_Customer.vsd
Power Down Supply
PMU-PCU
VDDP
5V
VDDC
1.5V
VPRE
VS
VDDP
GND (Pin 43)
VDDC
C
VDDC
GND (Pin 43)
Power Supply Generation (PSG)
Power Supply Generation
C
VDDP