NCP370 ON Semiconductor, NCP370 Datasheet - Page 6

• Manufacturer Part Number: NCP370
• Description: Positive and Negative Overvoltage Protection
• Manufacturer: ON Semiconductor

the OVLO threshold or falls below the UVLO threshold.
When the V
high after a time delay, t
response. The FLAG pin is an open drain output and
disconnected from input, and FLAG pin goes low.
the micro−controller to appropriately process the
The FLAG pin goes low as soon the input voltage exceeds
During over thermal condition (T°
In Reverse Mode, FLAG pin remains available, allowing
FLAG
REV
V
DIR
in
V
out
in
level recovers normal condition, FLAG goes
start
t
on
(see Figure 3), following the V
t
start
Figure 3. FLAG Pin in AC/DC Charging Mode
J
>T°
t
t
stop
off
SD
), output is
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out
t
on
6
therefore a pull up resistor (typically 1 MW, minimum
10 kW) must be connected to Battery. The FLAG level will
always reflect V
= 0).
overvoltage condition, overcurrent condition or thermal
shutdown condition.
t
start
t
dis
in
status, even if the device is turned off (DIR
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> 1.2 V
OVLO
UVLO