BTM7741G Datasheet, PDF (9/18 Pages) Infineon Technologies AG – TrilithIC

BTM7741G
4.7
Status Flag
The status flag output is an open drain output with zener-diode which requires a pull-up resistor, as shown in the
application circuit in Figure 4 “Application Example BTM7741G” on Page 15. Various errors as listed in the
table “Diagnosis” are reported by switching the open drain output ST to low.
Table 3 Truth table and Diagnosis (valid only for the High-Side-Switches)
Flag
IH1 IH2 SH1 SH2 ST Remarks
Inputs
Outputs
Normal operation;
identical with functional truth table
0 0 L L 1 stand-by mode
0 1 L H 1 switch2 active
1 0 H L 1 switch1 active
1 1 H H 1 both switches
active
Open load at high-side switch 1
Open load at high-side switch 2
0 X Z X 0 detected
1 X HX1
X 0 X Z 0 detected
X1 XH1
Overtemperature high-side switch1
0 XL X1
1 X L X 0 detected
Overtemperature high-side switch2
X0 XL 1
X 1 X L 0 detected
Overtemperature both high-side switches
00LL1
X 1 L L 0 detected
1 X L L 0 detected
Under voltage
X X L L 1 not detected
Inputs:
0 = Logic LOW
1 = Logic HIGH
X = don’t care
Outputs:
Z = Output in tristate condition
L = Output in sink condition
H = Output in source condition
X = Voltage level undefined
Status:
1 = No error
0 = Error
Data Sheet
9
Rev. 1.0, 2007-05-21