TLE5012-E0742 INFINEON [Infineon Technologies AG], TLE5012-E0742 Datasheet - Page 51

• Manufacturer Part Number: TLE5012-E0742
• Description: GMR-Based Angular Sensor for Rotor-Position Sensing
• Manufacturer: INFINEON [Infineon Technologies AG]

3.5.2
The Pulse-Width Modulation (PWM) Interface can be selected via SPI.
The PWM update rate can be changed within the register 0E
•
•
•
•
PWM uses a square wave with constant frequency whose duty cycle is modulated, resulting in an average value
of the waveform.
Figure 22
duty cycle of a PWM is defined by following general formulas:
The range between 0 - 6.25% and 93.75 - 100% is used only for diagnostic purposes. More details are given in
Table
Figure 22
Table 22
Parameter
PWM output frequency
Final Data Sheet
t
Duty
f
PWM
PWM
U
U
U
0.25 kHz with 12-bit resolution
0.5 kHz with 12-bit resolution
1.0 kHz with 12-bit resolution
2.0 kHz with 12-bit resolution
IFA
IFA
IFA
Vdd
Vdd
Vdd
22.
‚0'
Cycle
=
‚0'
=
‚0'
t
t
shows the principal behavior of a PWM with various duty cycles and the definition of timing values. The
on
PWM
1
Pulse-Width Modulation Interface
PWM Interface
Typical Example for a PWM Signal
ON = High level
+
=
t
off
t
PWM
t
on
Symbol
f
PWM
OFF = Low level
t
PWM
Min.
244
51
Typ.
-
Values
H
(IFAB_RES) in following steps:
Max.
1953
t
OFF
Hz
Unit
t
ON
Duty cycle = 95%
Duty cycle = 50%
Duty cycle = 5%
Note / Test Condition
selectable by IFAB_RES
Specifications
V 1.0, 2010-11
TLE5012
t
t
t
1)2)
(6)