TLE6216G Datasheet, PDF (9/17 Pages) Infineon Technologies AG – Smart Quad Channel Low-Side Switch

Datasheet TLE 6216
In the off mode, the output voltage is monitored.
An open load condition is detected when the output voltage of a given channel is below 55 % of the
supply voltage VS. Also the output voltages of two outputs are compared against each other in off con-
dition with a fixed offset of typ. 1.25 V to recognize GND bypasses. To suppress fault diagnosis during
the flyback phase of the compared output, the diagnostic circuit includes a latch function.
Reset of this latch is done at end of the flyback phase, additionally it can be reset by a low signal on
the enable input or a high signal of the input line.
See block diagram of open load detection on page 4.
Diagnostic Table
In general the status follows the input signal in normal operating conditions.
If any error is detected the status is inverted.
Operating Condition
Standby
Normal function
Open load or short to ground
Overload or short to supply
latched overload
reset latch
Overtemperature
latched overtemperature
reset latch
Standby
Input
STBY
L
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
Enable
Input
ENA
X
L
L
H
H
L
L
H
H
H
H
L
X
H
H
L
X
Control
Input
IN
X
L
H
L
H
L
H
L
H
H
H
H
H®L
H
H
H
H®L
Power
Output
OUT
OFF
OFF
OFF
OFF
ON
OFF
OFF
OFF
ON
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
Status
Output
ST
H
L
L
L
H
H
H
H
L
L
L
H
L
L
L
H
L
V7.1
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18.10.02