参数资料
型号: TLE7209R
厂商: INFINEON TECHNOLOGIES AG
元件分类: 运动控制电子
英文描述: STEPPER MOTOR CONTROLLER, PDSO20
封装: PLASTIC, SOP-20
文件页数: 9/31页
文件大小: 484K
代理商: TLE7209R
TLE 7209R
Circuit Description
Final Datasheet
17
V2.5, 2004-may-25
2.4.2.8
Open-Load Diagnosis
Open-load diagnostic in OFF-state is only possible in the SPI-mode (DMS = 5 V) if the
device is Disabled (EN = L or DIS = H). The detection mechanism is explained in
Figure 9. The according diagnostic information can be read out via the SPI diagnostic
register. The resulting overall diagnostic truth-table is shown as Table 15
Figure 9
Functional block diagram of open-load detection
Table 15
Diagnosis Truth Table for open load detection
Output stage inactive, EN = low or DIS = high, DMS > 4.5 V
OUT1 OUT2
Load available
H
Open Load
H
L
OL detected
SC -> GND on OUT1 and Open Load
L
OL not detected – double Fault
SC -> GND on OUT2 and Open Load
H
L
OL detected
SC ->
VS on OUT1 and Open Load
H
L
OL detected
SC ->
VS on OUT2 and Open Load
H
OL not detected – double Fault
1.5mA
OUT1
OR
EN
DIS
DMS
AND
-
+
1V
1mA
OUT2
-
+
1V
AND
1
to diagnostic
register
V
S
V
S
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