TLE9871QXA20_15 Datasheet, PDF (67/122 Pages) Infineon Technologies AG – Microcontroller with PWM Interface and BLDC MOSFET Driver for Automotive Applications

TLE9871QXA20
Measurement Unit
Table 14 Measurement Functions and Associated Modules
Module
Name
Modules
Functions
BEMF -
Comparators
Back Electromotive Force
Comparators
Comparators are used to detect the Back Electromotive
Force (Zero Crossing Event), which can be used as a
commutation trigger for BLDC applications.
Measurement
Core Module
Digital signal processing and ADC2
control unit
1. Generates the control signal for the 8-bit ADC2 and
the synchronous clock for the switched capacitor
circuits,
2. Performs digital signal processing functions and
provides status outputs for interrupt generation.
22.2.1 Block Diagram
VS
VAREF
VAGND
P2.0
OP1
OP2
P2.2
P2.3
P2.4
P2.5
VDH
OP
G = 10/20/40/60
x 0.226
x 0.166
rfu
CH0
CH1
CH2
CH3
MUX
CH4
CH5
CH6
CH7
Programmable
range setting
5V
GND_SENSE
VREF
10
A
D / Channel sequencer
ADC 1
10 Bit ADC + DPP1
SFR
VSD
VCP
MON
VDDP
VAREF
VDDC
PMU-VBG
Temperature
Sensor
rfu
x 0.055
x 0.039
x 0.039
x 0.023
x 0.039
x 0.164
x 0.219
x 0.75
CH0
CH1
CH2
CH3
CH4
MUX
CH5
CH6
CH7
CH8
CH9
1.23
V
calibration & filter unit
8
with
A
D/
upper / lower
threshold
detection / interrupt
ADC 2
8 Bit ADC + DPP2
SFR
Measurement -Unit
Figure 25 Measurement Unit-Overview (with opamp)
Data Sheet
67
Rev. 1.0, 2015-04-30