TLE6282G_08 Datasheet, PDF (8/16 Pages) Infineon Technologies AG – Dual Half Bridge Driver IC Compatible to very low ohmic normal

Remarks:
Data Sheet TLE6282G
Default status of input pins:
To assure a defined status of all input pins in case of disconnection, these pins are internally
secured by pull up / pull down current sources with approx. 20µA.
The following table shows the default status of each input pin.
Input pin
ILx (active high)
IHx (active low)
DT/DIS (active high)
Default status
Low
High
High
Definition:
In this datasheet a duty cycle of 98% means that the GLx pin is 2% of the PWM period in
high condition.
Functional description
Description of Dead Time Pin / Disable Pin / Reset
In the range between 1.5 and 3.5 V the dead time is varied from 100ns to 3.1µs typ. In the
range below 1.0V the dead time is disabled / shoot through is allowed. Both external Mosfets
of the same half bridge can be switched on simultaneously. This function allows the use of a
half bridge for valves and injectors. In the range above 4.0V the device is disabled.
If DIS is pulled up to 5V for 3.1 to 3.4µs only the ERR register is cleared (reset), no output
stage is shut down. A shut down of all external Mosfets occurs if DIS is pulled up for longer
than 7µs.
Condition of DT/DIS pin
0 - 1V
1.5 - 3.5V
> 4V
Function
Disable of dead time; Shoot through is allowed
Adjust dead time between 100ns and 3.1µs typ.
a) Reset of diagnosis register if DT/DIS voltage is higher than
4V for a time between 3.1µs and 3.4µs
b) Shut down of output stages if DT/DIS voltage is higher
than 4V for a time above 7µs (Active pull down of gate volt-
age)
Description of Diagnosis
The ERR pin is an open collector output and has to be pulled up with external pull up resis-
tors to 5V. In normal conditions the ERR signal is high. In case of shutdown of any output
stage the ERR is pulled down. This shut down can be caused by undervoltage or short cir-
cuit.
Data Sheet
8
Rev 2.4 2008-03-18