BTM 7742G Infineon Technologies, BTM 7742G Datasheet - Page 22

• Manufacturer Part Number: BTM 7742G
• Manufacturer: Infineon Technologies

Specifications of BTM 7742G

• Packages: PG-DSO-36
• Operating Range: 5.5 - 28.0 V
• Rds (on) (typ): 250.0 mOhm
• Id(lim): 12.0 A
• Iq (typ): 5.0 µA
• Diagnosis: OV, OT, OC-failure flag, current sense

It is recommended to do the freewheeling in the low side path to ensure a proper function and avoid unintended
overtemperature detection and shutdown. For proper operation it is also recommended to put a pull-down resistor
R
open load detection.
Considerations for Open Load Detection Mode
As mentioned in
are off. This will be realized by setting the corresponding IN signal to high while INH and the other IN are low.
Device State
1) Previous current sense assignment to be reset by IN1=IN2=low and both high side switches off (see
2) When both high side switches are in on state, the CS provides the sense signal for the high side switch, which has been
Together with the recommended pull-down resistors on the outputs OUTx to GND this provides the possibility to
do an open load detection in H-bridge configuration.
In case of one high side is active while the other half bridge is off (HS off and LS off) a current of up to 2mA will
be sourced out of the OUT of the high ohmic half bridge. This has to be considered while choosing the right value
of the pull-down resistor.
Data Sheet
Open-Load detection
mode
Dx
turned on at first.
on each output OUTx to GND with a value in the range of e.g. 1...10 kΩ. These resistors can also be used for
Chapter 6.4.1
Inputs
INH
0
0
0
IN1
0
1
1
both high side switches can be switched on independently while all other switches
IN2
1
0
1
Outputs
HS1
OFF
ON
ON
LS1
OFF
OFF
OFF
22
HS2
ON
OFF
ON
LS2
OFF
OFF
OFF
IS
CS HS2
CS HS1
CS
2)
1)
1)
High Current H-Bridge
Mode
HS2 active
HS1 active
both HSx are active
Application Information
Rev. 1.0, 2010-05-28
Chapter
BTM7742G
6.4.3)