TLE82453-3SA_15 Datasheet, PDF (48/71 Pages) Infineon Technologies AG – 3 Channel High-Side and Low-Side Linear Solenoid Driver IC

TLE82453-3SA
Diagnosis Functions
VBAT < OVSD THRESHOLD
AND
CPOUT – VBAT > UV THRESHOLD
AND
LSUPx > UV THRESHOLD
VBAT > OVSD THRESHOLD
OR
CPOUT – VBAT < UV THRESHOLD
OR
LSUPx < UV THRESHOLD
VBAT < OVSD THRESHOLD
AND
CPOUT – VBAT > UV THRESHOLD
AND
LSUPx > UV THRESHOLD
ILOADx
VLOADx
OVB,
CPUV,
LSUPUVx
CSN
Figure 33
SI
SO
FAULT
(FMx=1
LSUPUVx)
DIAG-
NOSIS
DIAG-
NOSIS
OVB = 0
CPUV = 0
LSUPUVx=0
DIAG-
NOSIS
DIAG-
NOSIS
OVB = 1
CPUV = 1
LSUPUVx=1
Set-point DIAG- DIAG-
> 0 NOSIS NOSIS
DIAG- DIAG-
NOSIS NOSIS
OVB = 1 OVB = 0
CPUV = 1 CPUV = 0
LSUPUVx=1 LSUPUVx=0
Supply Out of Range Fault in Low-Side Configuration
10.7
CRC Fault
The device contains EEPROM cells for storing calibration data. These cells are accessed during start up and
periodically during operation of the device. A Cyclical Redundancy Checking (CRC) feature is included to detect
errors in the reading of the EEPROM. If an error is detected, the CRC error bit will be set in the DIAGNOSIS
register. All channels will remain operational, but the accuracy of the current control may be degraded. The CRC
fault bit is cleared upon reading the Diagnosis Register.
10.8
Regulator Error Fault (REx)
The DIAGNOSIS register includes a regulator error bit for each channel. This bit is set when the controller is not
able to regulate the load current to the setpoint value for more than 8 consecutive PWM cycles. The RE bit is set
if the integrator output exceeds the upper or lower limit for more than 8 PWM cycles. The REx fault bits are cleared
upon reading the Diagnosis Register.
Data Sheet
-
48
Rev 1.0, 2015-03-27