NCV8460 ON Semiconductor, NCV8460 Datasheet - Page 14

• Manufacturer Part Number: NCV8460
• Description: Self Protected High Side Driver
• Manufacturer: ON Semiconductor

OFF State Open Load Detection
pull-up resistor (R
a positive supply voltage (V
ensure that a false OFF State OL condition is not detected
when the load (R
V
minimum value with the load (R
avoided. The following formula shows this relationship:
does not cause a false OFF State OL detection condition
OL_min
Off State Open Load Detection requires an external
The external R
In addition to ensuring the selected R
V
OUT
+ V
(Openload Off State Detection Threshold)
pull*up
L
pull-up
5 V
) is connected. A V
pull-up
resistor value should be selected to
R
) connected between V
L
) R
pull-up
pull*up
L
Input
STAT
).
) connected needs to be
OUT
Figure 32. Open Load Detection In Off State
pull-up
R
voltage above the
L
t V
resistor value
OUT
OL_min
pin and
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GND
14
when the load is connected, the R
the OFF State OL to miss detecting an OL condition when
the load is disconnected. A V
V
maximum value with the load (R
avoided. The following formula shows this relationship:
pulled high (up to several mA), R
connected to a supply that is switched OFF when the module
is in standby.
OL_max
Because I
Vbat
V
V
OL
D
OUT
1
R
(Openload Off State Detection Threshold)
+ I
pull*up
d
(OFF) may significantly increase if V
L
Output Leakage with V
t V
OL
I
pull*up
V
pull −up
* V
L
) disconnected needs to be
pull-up
OUT
pull-up
OL_max
R
R
pull −up
L
OUT
voltage below the
must also not cause
resistor should be
+ 3.5 V
OL
1
OUT
is