BTM7745G Datasheet, PDF (18/24 Pages) Infineon Technologies AG – High Current H-Bridge Trilith IC 3G

6.4.4 Truth Table
High Current H-Bridge
BTM7745G
Block Description and Characteristics
Device State
Inputs
Outputs
Mode
INH IN1 IN2 HS1 LS1 HS2 LS2 ST
Normal operation
0 0 0 OFF OFF OFF OFF 1
Stand-by mode, reset
1 0 0 OFF ON OFF ON 1
–
1 0 1 OFF ON ON OFF 1
–
1 1 0 ON OFF OFF ON 1
–
1 1 1 ON OFF ON OFF 1
–
Open-Load detection 0 0 1 OFF OFF ON OFF 1
mode
0 1 0 ON OFF OFF OFF 1
Enable Open-load detection
Enable Open-load detection
0 1 1 ON OFF ON OFF 1
Over-voltage (OV) X X X ON OFF ON OFF 0
Shut-down of LSS,
HSS activated, error detected
Under-voltage (UV) X X X OFF OFF OFF OFF 1
UV lockout, reset
Overtemperature or 0 0 0 OFF OFF OFF OFF 1
short circuit of HSS or _{1 X X OFF OFF OFF OFF 0}
LSS ¹⁾
X1 X
Stand-by mode, reset of latch
Shut-down with latch, error
detected
XX 1
Current limitation
1 0 X ON OFF X X 0
mode half bridge 1
Short Circuit in LS1 detected,
half bridge 2 operates in normal
mode
1 1 X OFF ON X X 0
Short Circuit in HS1 detected,
half bridge 2 operates in normal
mode
0 1 X OFF OFF X X 0
Short Circuit in HS1 detected
Current limitation
1 X 0 X X ON OFF 0
mode half bridge 2
Short Circuit in LS2 detected,
half bridge 1 operates in normal
mode
1 X 1 X X OFF ON 0
Short Circuit in HS2 detected,
half bridge 1 operates in normal
mode
0 X 1 X X OFF OFF 0
Short Circuit in HS2 detected
1) In short circuit of HSS or LSS, the junction temperature will arise and as soon as the over temperature shut down threshold
is reached the device will shut down and latch the status. Short circuit of HSS and LSS itself won’t be detected as failure.
Inputs:
0 = Logic LOW
1 = Logic HIGH
X = 0 or 1
Data Sheet
Switches
OFF = switched off
ON = switched on
X = switched on or off
Status Flag ST:
0 = Logic LOW (error)
1 = Logic HIGH (normal operation)
18
Rev. 1.0, 2010-05-28