BTS7741G View Datasheet(PDF) - Infineon Technologies
Part Name
Description
Manufacturer
BTS7741G Datasheet PDF : 16 Pages
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BTS 7741 G
Open Load Detection
Open load is detected by voltage measurement in Off state. If the output voltage exceeds
a specified level the error flag is set with a delay.
Status Flag
The status flag output is an open drain output with Zener-diode which requires a pull-up
resistor, c.f. the application circuit on page 14. Various errors as listed in the table
“Diagnosis” are detected by switching the open drain output ST to low. An open load
detection is available when there is an external resistor < R0 from SH1 and SH2 pin to
DHVS or Vs. In order to reach low quiescent current, we recommend to disconnect this
resistor when not used.
2
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
H
X
1
X
0
X
Z
0 detected
X
1
X
H
1
Overtemperature high-side switch1
0
X
L
X
1
1
X
L
X
0 detected
Overtemperature high-side switch2
X
0
X
L
1
X
1
X
L
0 detected
Overtemperature both high-side switches 0
0
L
L
1
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
Data Sheet
Outputs:
Z = Output in tristate condition
L = Output in sink condition
H = Output in source condition
X = Voltage level undefined
6
Status:
1 = No error
0 = Error
2003-03-06
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