BTM7755G Infineon Technologies, BTM7755G Datasheet - Page 21

• Manufacturer Part Number: BTM7755G
• Description: Motor / Motion / Ignition Controllers & Drivers Hi Current H-Bridge Trilith IC 3G
• Manufacturer: Infineon Technologies
• Type: H-Bridge Motor Driverr

Specifications of BTM7755G

• Product: Electronic Ignition Drivers
• Operating Supply Voltage: 45 V
• Supply Current: 5 mA
• Mounting Style: SMD/SMT
• Package / Case: PG-DSO-36
• Supply Voltage (min): - 0.3 V
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant
• Other names: BTM7755GXT

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
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
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 LS1 HS2 LS2 ST
OFF OFF ON
ON
ON
OFF OFF OFF 1
OFF ON
21
OFF 1
OFF
1
Mode
HS2 active
HS1 active
both HSx are active
High Current H-Bridge
Application Information
Rev. 2.0, 2010-05-28
BTM7755G