TLE7241E Datasheet, PDF (27/71 Pages) Infineon Technologies AG – Dual Channel Constant Current Control Solenoid Driver

TLE 7241E
Functional Description and Electrical Characteristics
OPEN CIRCUIT FAULT - OCCURS WHILE OFF THEN OPEN LOAD / SHORT TO GROUND
TEST IS PERFORMED
14V
VPOSx
2.5V
dVPOS/dt
Load State
open
ok
OL/SGx
fault state
OL/SGx latched
fault state
tos(off)
tos(off) tos(off)
CSB
MOSI
MISO
G.C.
cmd
G.C.
cmd
G.C.
cmd
FT=1
G.C.
response
G.C.
response
OLS G=0
OLS G=1
The Latched Fault State is sampled and stored in the SPI transmit register at the points marked with “ “ .
G.C.
cmd
FT=1
G.C.
cmd
FT=1
G.C.
G.C.
G.C.
response response response
OLSG=1 OLSG=1 OLSG=0
Figure 12 Open Load - Fault Type Bit = 1 Test
d----V_{----P---O----S- = -----------}–_---(_--i_--S---G-----–_-----i_{--R---r-e---c--i-r--c---})_----------
(2)
dt
(C_POS + C_NEG + C_OUT)
i_SG = short to ground detection pull up current (5.4.3.2)
i_Rrecirc = reverse leakage current of recirculation diode
C_POS = external capacitance on the POS pin
C_NEG = external capacitance of the NEG pin
C_OUT = external capacitance on the OUT pin
Data Sheet
27
Rev. 1.1, 2009-01-19