參數(shù)資料
型號(hào)： NCP345SNT1
廠商： ON SEMICONDUCTOR
元件分類： 電源管理
英文描述： Overvoltage Protection IC
中文描述： 1-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO5
封裝： TSOT-23, 5 PIN
文件頁數(shù)： 3/8頁
文件大?。?/td> 57K
代理商： NCP345SNT1
NCP345
http://onsemi.com
3
ABSOLUTE MAXIMUM RATINGS
(T
A
= 25
°
C unless otherwise noted.)
Rating
Pin
Symbol
Min
Max
Unit
OUT voltage to GND
1
V
O
V
input
V
CNTRL
0.3
30
V
Input and CNTRL pin voltage to GND
4
3
0.3
0.3
30
13
V
V
CC
Maximum Range
Maximum Power Dissipation at T
A
= 85
°
C
Thermal Resistance Junction to Air
5
V
CC(max)
P
D
R
JA
T
J
T
A
0.3
30
V
0.216
W
300
°
C/W
°
C
°
C
Junction Temperature
150
Operating Ambient Temperature
40
85
V
CNTRL
Operating Voltage
Storage Temperature Range
3
0
5.0
V
T
stg
65
150
°
C
ESD performance (HBM)
all
2.5
kV
Maximum ratings are those values beyond which device damage can occur. Maximum ratings applied to the device are individual stress limit
values (not normal operating conditions) and are not valid simultaneously. If these limits are exceeded, device functional operation is not implied,
damage may occur and reliability may be affected.
Human body model (HBM): MIL STD 883C Method 30157, (R = 1500 ohms, C = 100 pf, F = 3 pulses delay 1 s).
ELECTRICAL CHARACTERISTICS
(For typical values T
A
= 25
°
C, for min/max values T
A
= 40
°
C to +85
°
C, V
CC
= 6.0 V, unless otherwise noted.)
Characteristic
Symbol
Pin
Min
Typ
Max
Unit
V
CC
Operating Voltage Range
Supply Current (I
CC
+ I
Input
; V
CC
= 6.0 V Steady State)
Input Threshold
(V
Input
connected to V
CC
; V
Input
increasing)
V
CC(opt)
5
3.0
4.8
25
V
4,5
0.75
1.0
mA
V
Th
4
6.65
6.85
7.08
V
Input Hysteresis (V
Input
connected to V
CC
; V
Input
decreasing)
Input Impedance (Input = V
Th
)
CNTRL Voltage High
V
Hyst
R
in
V
ih
V
il
I
ih
I
il
V
Lock
I
Sink
V
oh
4
50
100
200
mV
4
70
150
k
3
1.5
V
CNTRL Voltage Low
3
0.5
V
CNTRL Current High (V
ih
= 5.0 V)
CNTRL Current Low (V
il
= 0.5 V)
Undervoltage Lockout (V
CC
decreasing)
Output Sink Current (V
CC
< V
Th
, V
OUT
= 1.0 V)
Output Voltage High (V
CC
= V
in
= 8.0 V; I
Source
= 10 mA)
Output Voltage High (V
CC
= V
in
= 8.0 V; I
Source
= 0.25 mA)
Output Voltage High (V
CC
= V
in
= 8.0 V; I
Source
= 0 mA)
Output Voltage Low
(Input < 6.5 V; I
Sink
= 0 mA; V
CC
= 6.0 V, CNTRL = 0 V)
3
95
200
A
3
10
20
A
3
2.5
2.8
3.0
V
1
10
33
50
A
1
V
CC
1.0
V
CC
0.25
V
CC
0.1
V
V
ol
1
0.1
V
Turn ON Delay Input (V
Input
connected to V
CC
; V
Input
step down
signal from 8.0 to 6.0 V; measured to 50% point of OUT)*
T
ON IN
1
10
sec
Turn OFF Delay Input (V
Input
connected to V
CC
; V
Input
step up signal
from 6.0 to 8.0 V; C
L
= 12 nF Output > V
CC
1.0 V)
T
OFF IN
1
0.5
1.0
sec
Turn ON Delay CNTRL (CNTRL step down signal from 2.0 to 0.5 V;
measured to 50% point of OUT)*
T
ON CT
1
10
sec
Turn OFF Delay CNTRL (CNTRL step up signal from 0.5 to 2.0 V;
C
L
= 12 nF Output > V
CC
1.0 V)
*Turn ON Delay is guaranteed by design.
T
OFF CT
1
1.0
2.0
sec
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