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參數(shù)資料
| 型號(hào)： | NUS3055MUTAG |
| 廠商： | ON SEMICONDUCTOR |
| 元件分類(lèi)： | 電源管理 |
| 英文描述： | Low Profile Overvoltage Protection IC with Integrated MOSFET |
| 中文描述： | 1-CHANNEL POWER SUPPLY SUPPORT CKT, DSO8 |
| 封裝： | 3 X 2.50 MM, 0.55 MM HEIGHT, 0.65 MM PITCH, TLLGA-8 |
| 文件頁(yè)數(shù)： | 2/10頁(yè) |
| 文件大?。?/td> | 117K |
| 代理商： | NUS3055MUTAG |
NUS3055MUTAG
http://onsemi.com
2
Figure 1. Simplified Schematic
+
IN
V
CC
GND
CNTRL
OUT
GATE
Schottky
Diode
LOAD
Microprocessor Port
NUS3055
C1
Undervoltage
Lock Out
Logic
FET
Driver
PCH
V
ref
AC/DC Adapter of
Accessory Charger
+
SRC
DRAIN
PIN FUNCTION DESCRIPTIONS
Pin #
Symbol
Pin Description
1
IN
This pin senses an external voltage point. If the voltage on this input rises above the overvoltage threshold
(V
TH
), the OUT pin will be driven to within 1.0 V of V
CC
, thus disconnecting the PChannel Power MOSFET. The
nominal threshold level is 6.85 V and this threshold level can be increased with the addition of an external
resistor between IN and V
CC
.
2
GND
Circuit Ground
3
CNTRL
This logic signal is used to control the state of OUT and turnon/off the PChannel Power MOSFET. A logic High
results in the OUT signal being driven to within 1.0 V of V
CC
which disconnects the FET. If this pin is not used,
the input should be connected to ground.
4
DRAIN
Drain pin of the PChannel Power MOSFET
5
SRC
Source pin of the PChannel Power MOSFET
6
GATE
Gate pin of the PChannel Power MOSFET
7
OUT
This signal drives the gate of a PChannel 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
CC
in
less than 1.0 _sec provided that gate and stray capacitance is less than 12 nF.
8
V
CC
Positive Voltage supply. If V
CC
falls below 2.8 V (nom), the OUT pin will be driven to within 1.0 V of V
CC
, thus
disconnecting the Pchannel FET.
OVERVOLTAGE PROTECTION CIRCUIT TRUTH TABLE
IN
CNTRL
OUT
<V
th
L
GND
<V
th
H
V
CC
>V
th
L
V
CC
>V
th
H
V
CC
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| NUS3065MU | 制造商:ONSEMI 制造商全稱(chēng):ON Semiconductor 功能描述:Low Profile Overvoltage Protection IC with Integrated MOSFET |
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