參數(shù)資料
型號： LTC1985ES5-1.8
廠商： LINEAR TECHNOLOGY CORP
元件分類： 電源管理
英文描述： Micropower Precision Triple Supply Monitor with Push-Pull Reset Output in a 5-Lead SOT-23 Package
中文描述： 3-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO5
封裝： PLASTIC, SOT-23, 5 PIN
文件頁數(shù)： 2/8頁
文件大?。?/td> 135K
代理商： LTC1985ES5-1.8
2
LTC1985-1.8
(Notes 1, 2)
V
CC3
, V
CC18
, V
CCA
...................................... –0.3V to 7V
RST .......................................... –0.3V to (V
CC3
+ 0.3V)
Operating Temperature Range
(Note 3)............................................. –40
°
C to 85
°
C
Storage Temperature Range................ –65
°
C to 150
°
C
Lead Temperature (Soldering, 10 sec)................ 300
°
C
Consult factory for Industrial and Military grade parts.
T
JMAX
= 125
°
C,
θ
JA
= 250
°
C/W
RST 1
GND 2
TOP VIEW
S5 PACKAGE
5-LEAD PLASTIC SOT-23
V
CCA
3
5 V
CC3
4 V
CC18
SYMBOL
V
RT3
V
RT18
V
RTA
V
CCOP
I
VCC3
PARAMETER
Reset Threshold V
CC3
Reset Threshold V
CC18
Reset Threshold V
CCA
V
CC3
, V
CC18
Operating Voltage
V
CC3
Supply Current
CONDITIONS
V
CC3
Input Threshold
V
CC18
Input Threshold
V
CCA
Input Threshold
RST in Correct Logic State
V
CC18
> V
CC3
V
CC18
< V
CC3
, V
CC3
= 3V (Note 4)
V
CC18
< V
CC3
, V
CC18
= 1.8V (Note 4)
V
CCA
= 1V
RST Low
V
CC18
, V
CC3
or V
CCA
Less Than Reset
Threshold V
RT
by More Than 1%
I
SINK
= 2.5mA, V
CC3
= 3V, V
CC18
= 0V
I
SINK
= 100
μ
A, V
CC3
= 1V, V
CC18
= 0V
I
SINK
= 100
μ
A, V
CC3
= 0V, V
CC18
= 1V
I
SINK
= 100
μ
A, V
CC3
= 1V, V
CC18
= 1V
I
SOURCE
= 200
μ
A
MIN
2.760
1.656
0.985
1
TYP
2.805
1.683
1.000
MAX
2.850
1.710
1.015
7
2
20
2
15
280
UNITS
G
V
V
V
V
G
G
G
G
G
1
μ
A
μ
A
μ
A
nA
ms
μ
s
10
1
0
200
110
I
VCC18
I
VCCA
t
RST
t
UV
V
CC18
Supply Current
V
CCA
Input Current
Reset Pulse Width
V
CC
Undervoltage Detect to RST
G
G
–15
140
G
V
OL
Output Voltage Low, RST
G
G
G
G
0.15
0.05
0.05
0.05
0.4
0.3
0.3
0.3
V
V
V
V
V
V
OH
Output Voltage High, RST
G
0.8V
CC3
The
G
denotes specifications which apply over the full operating
temperature range, otherwise specificaitons are at T
A
= 25
°
C. V
CC3
= 3V, V
CC18
= 1.8V, V
CCA
= V
CC3
unless otherwise noted.
ORDER
PART NUMBER
LTC1985ES5-1.8
S5 PART MARKING
ELECTRICAL CHARACTERISTICS
ABSOLUTEW
W
W
U
PACKAGE/ORDER U
U
W
LTNM
Note 1:
Absolute Maximum Ratings are those values beyond which the life
of the device may be impaired.
Note 2:
All voltage values are with respect to GND.
Note 3:
The LTC1985E is guaranteed to meet specified performance from
0
°
C to 70
°
C and is designed, characterized and assured to meet the
extended temperature limits of –40
°
C to 85
°
C but are not tested at these
temperatures.
Note 4:
Both V
CC3
and V
CC18
can act as the supply depending on which pin
has the greatest potential.
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