DEMOBOARD TLE 6244X Infineon Technologies, DEMOBOARD TLE 6244X Datasheet - Page 32

• Manufacturer Part Number: DEMOBOARD TLE 6244X
• Description: BOARD DEMO FOR TLE 6244X
• Manufacturer: Infineon Technologies

Specifications of DEMOBOARD TLE 6244X

• Main Purpose: Power Management, Low Side Driver (Internal FET)
• Embedded: No
• Utilized Ic / Part: TLE6244
• Primary Attributes: 18 Channel Internal Switch
• Secondary Attributes: Overvoltage, Short-Circuit & Thermal Protection
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: DEMOBOARDTLE6244XIN

Final Data Sheet
1.8 Unused Power Stages
To avoid an „open load“ fault indication an unused power switch has to be connected to an exter-
nal pull up resistor connected to U
µsec-bus-interface.
UBR
age is composed of the drop voltage of the regulator and the drop voltage of the reverse protec-
tion circuit of the regulator resp. the forward voltage of a reverse protection diode.
Attention:
This equation also applies to power switches that are used as signal drivers (pull up resistor
inside ECU or outside ECU): the permissible pull up resistance without a wrong diagnostic infor-
mation is calculated by the same equation. On dimensioning the pull up resistance in combination
with the diagnostic current, in applications as signal drivers attention must be paid especially to
the required high level (also for low battery voltage).
U
min
UBatt
is the required minimum battery voltage for diagnostic function of the ECU. The drop volt-
UBR
R
Pull-up,max
U
drop
= (UBR
UB
Voltage
regulator
TLE6244X
min
or has to be switched on by the input pin or via SPI or the
- U
drop,max
32
OUTi
U Batt
- U
thresOL,max
U
thresOL
) / I
diag,max
R
Pull-up
I
diag
U
TLE 6244X
V4.2, 2003-08-29
UB