TLE6228 INFINEON [Infineon Technologies AG], TLE6228 Datasheet - Page 8

• Manufacturer Part Number: TLE6228
• Description: Smart Quad Channel Low-Side Switch?
• Manufacturer: INFINEON [Infineon Technologies AG]

If current overload or overtemperature occurs for a longer time than t
into an internal register and the output is shutdown. The reset is done by switching off the correspond-
ing control input for a time longer than t
Open load is detected for all four channels in on and off mode.
In the on mode the load current is monitored. If it drops below the specified threshold value IQU then
an open load condition is detected.
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 the threshold V
To prevent an open load diagnosis in case of transient Voltages on the outputs the open load detection
in off mode uses a filter of typ. 50µs.
Status output at pulse width operation
If the input is operated with a pulsed signal, the status does not follow each single pulse of the input
signal. An internal delay t
the timing diagrams on the following pages for further information.
This internal status delay simplifies diagnostic software for pwm applications.
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
Overtemperature
Note 1) : overload/short-to-supply/overtemperature - events shorter than min. time t
2.10 will not be latched and not reported at the status pin.
V3.1
reset latch
reset latch
2)
2)
1)
D
of typ. 1.2ms ( min 500 µs) enables a continuous status output signal. See
1)
Standby
STBY
Input
H
H
H
H
H
H
H
H
H
H
H
H
H
L
D-IN
.
Page
Enable
Input
ENA
X
H
H
H
H
H
H
H
H
L
L
L
L
L
DS(OL)
8
, which is typ. 33 % of the supply voltage VS.
D a t a s h e e t T L E 6 2 2 8 G P
Control
H → L
H → L
Input
IN
H
H
H
H
H
X
X
X
X
L
L
L
DSO
, the fault condition is latched
Output
Power
ON
ON
off
off
off
off
off
off
off
off
off
off
off
off
Q
26. Aug. 2002
DSO
Output
Status
specified in
ST
H
H
H
H
H
L
L
L
L
L
L
L
L
L