nus3065mu ON Semiconductor, nus3065mu Datasheet - Page 2

• Manufacturer Part Number: nus3065mu
• Description: Low Profile Overvoltage Protection Ic With Integrated Mosfet
• Manufacturer: ON Semiconductor

OVERVOLTAGE PROTECTION CIRCUIT TRUTH TABLE
PIN FUNCTION DESCRIPTIONS
Pin #
1
2
3
4
5
6
7
8
Accessory Charger
AC/DC Adapter of
<V
<V
>V
>V
IN
th
th
th
th
Symbol
CNTRL
DRAIN
GATE
GND
SRC
OUT
V
IN
CC
This pin senses an external voltage point. If the voltage on this input rises above the overvoltage threshold
(V
nominal threshold level is 6.85 V and this threshold level can be increased with the addition of an external resis-
tor between IN and V
Circuit Ground
This logic signal is used to control the state of OUT and turn−on/off the P−Channel Power MOSFET. A logic High
results in the OUT signal being driven to within 1.0 V of V
the input should be connected to ground.
Drain pin of the P−Channel Power MOSFET
Source pin of the P−Channel Power MOSFET
Gate pin of the P−Channel Power MOSFET
This signal drives the gate of a P−Channel Power MOSFET. It is controlled by the voltage level on IN or the logic
state of the CNTRL input. When an overvoltage event is detected, the OUT pin is driven to within 1.0 V of V
less than 1.0 _sec provided that gate and stray capacitance is less than 12 nF.
Positive Voltage supply. If V
disconnecting the P−channel FET.
TH
CNTRL
), the OUT pin will be driven to within 1.0 V of V
IN
H
H
L
L
GND
CC
V
.
+
−
ref
Figure 1. Simplified Schematic
GND
OUT
CC
V
V
V
Undervoltage
CC
CC
CC
Lock Out
falls below 2.8 V (nom), the OUT pin will be driven to within 1.0 V of V
Logic
http://onsemi.com
NUS3065MU
CNTRL
V
Microprocessor Port
CC
Driver
FET
2
Pin Description
CC
SRC
, thus disconnecting the P−Channel Power MOSFET. The
P−CH
CC
which disconnects the FET. If this pin is not used,
NUS3065
DRAIN
GATE
OUT
Schottky
Diode
+
C1
LOAD
CC
, thus
CC
in