TLE7241E Datasheet, PDF (28/71 Pages) Infineon Technologies AG – Dual Channel Constant Current Control Solenoid Driver

TLE 7241E
Functional Description and Electrical Characteristics
SHORT TO GROUND FAULT - OCCURS & CLEARS WHILE OFF
14V
VPOSx
2.5V
Short to
GND
Load
State
ok
OL/SGx
fault state
OL/SGx
latched
fault state
t < tos(off)
tos(off)
tos(off)
CSB
MOSI
MISO
G.C.
cmd
G.C.
cmd
G.C.
cmd
FT=1
G.C.
cmd
FT=1
G.C.
cmd
FT=1
G.C.
response
G.C.
response
G.C.
G.C.
G.C.
response response response
OLS G=0
OLS G=1
OLSG=1 OLSG=1 OLS G=1
The Latched Fault State is sampled and stored in the SPI transmit register at the points marked with “ “ .
G.C.
cmd
G.C.
cmd
G.C.
G.C.
response response
OLSG=1 OLSG=0
Figure 13 Short to Ground Fault Type Bit = 1 Test
5.4.4 Thermal Shutdown
Each output transistor includes an independent thermal shutdown circuit. When the
temperature of the output transistor exceeds a threshold value (see table below,
Item 5.4.4.1), the output transistor will be turned off and a fault bit will be set for the failed
channel. The transistor will remain off until the local transistor temperature has
decreased by the thermal hysteresis value (see table below, Item 5.4.4.2), the output
transistor will then turn on again.
Thermal shutdown faults are channel specific.
Note: A thermal fault is latched until read via the MISO return word.
Data Sheet
28
Rev. 1.1, 2009-01-19