TLE9879QXA40
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 1. Generates the control signal for the 8-bit ADC2 and
control unit
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
VAGND
VS
VAREF
P2.0
OP1
CH0
CH1
CH2
CH3
CH4
CH5
CH6
CH7
5 V
GND_SENSE
OP
OP2
P2.2
G = 10/20/40/60
VREF
10
/
MUX
SFR
A
D
Channel sequencer
P2.3
P2.4
P2.5
VDH
ADC 1
x 0.226
x 0.166
rfu
10 Bit ADC + DPP1
Programmable
range setting
CH0
CH1
CH2
CH3
CH4
CH5
rfu
1.23
V
x 0.055
x 0.039
VSD
VCP
x 0.039
x 0.023
x 0.039
x 0.164
x 0.219
calibration& filter unit
with
upper / lower
threshold
MON
VDDP
8
/
SFR
MUX
A
D
detection / interrupt
VAREF
CH6
CH7
ADC 2
PMU-VBG
CH8
CH9
VDDC
x 0.75
Temperature
Sensor
8 Bit ADC + DPP2
Measurement-Unit
Measurement_Unit_Overview_TLE987x_no_SD_B1
5.vsd
Figure 25
Measurement Unit-Overview (with opamp)
Data Sheet
67
Rev. 1.0, 2015-04-30
INFINEON [ Infineon ]
