TLE6244XXT Infineon Technologies, TLE6244XXT Datasheet - Page 32

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TLE6244XXT

Manufacturer Part Number
TLE6244XXT
Description
Manufacturer
Infineon Technologies
Datasheet

Specifications of TLE6244XXT

Switch Type
Low Side
Power Switch Family
TLE 6244X
Input Voltage
-0.3 to 36V
Power Switch On Resistance
620mOhm
Output Current
1.1A
Number Of Outputs
18
Mounting
Surface Mount
Package Type
MQFP
Operating Temperature (min)
-40C
Operating Temperature (max)
150C
Operating Temperature Classification
Automotive
Pin Count
64
Lead Free Status / RoHS Status
Compliant
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

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