LM5060Q1 National Semiconductor Corporation, LM5060Q1 Datasheet - Page 21

• Manufacturer Part Number: LM5060Q1
• Description: High-side Protection Controller With Low Quiescent Current
• Manufacturer: National Semiconductor Corporation

Case B for situations where V
polarity situation present. See
V
In this case the voltage on the SENSE pin should not exceed
65V.
Case D for situations where V
and V
to protect the OUT pin from currents exceeding 25 mA.
FAULT DETECTION WITH R
Figure 18
protected against a reverse battery situation with a current
limiting resistor R
path, the resistor R
OUT
is also positive, but V
IN
is positive. See
shows an example circuit where the OUT pin is
O
S
. When using resistor R
FIGURE 16. Current Limiting Resistor in the OUT Path for OUT > SENSE Condition
has to be selected taking the R
Figure
OUT
FIGURE 17. Current Limiting Resistor for Negative OUT Conditions
OUT
OUT
S
Figure
is higher than V
17. R
AND R
> V
< V
IN
IN
O
, while V
and there is no reverse
16. V
O
needs to be selected
O
IN
in the OUT pin
is positive and
OUT
IN
:
is negative
O
resistor
21
Case C for situations where V
V
excessive OUT pin current. No current limiting resistors are
necessary. Both the SENSE and OUT voltages should be
limited to less than 65V.
into account. The LM5060 monitors the V
ternal N-Channel MOSFET. The V
is the drain to source voltage threshold (V
below calculates a proper R
V
sistor.
V
OUT pin, I
OUT
DSTH
OFFSET
are positive as well. In such cases there is no risk of
taking into account the voltage drop across the R
is the offset voltage between the SENSE pin and the
SENSE
is the threshold programming current, and
S
OUT
resistor value for a desired
30104257
30104258
DS
< V
fault detection voltage
IN
DS
DSTH
and both V
voltage of an ex-
). The formula
www.national.com
IN
O
and
re-