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參數(shù)資料
| 型號： | LTC693 |
| 廠商： | Linear Technology Corporation |
| 英文描述： | Microprocessor Supervisory Circuits(μP監(jiān)控電路) |
| 中文描述： | 微處理器監(jiān)控電路（微處理器監(jiān)控電路） |
| 文件頁數(shù)： | 3/16頁 |
| 文件大?。?/td> | 261K |
| 代理商： | LTC693 |
3
LTC692/LTC693
ELECTRICAL C
V
CC
= Full Operating Range, V
BATT
= 2.8V, T
A
= 25
°
C, unless otherwise noted.
HARA TERISTICS
PARAMETER
Battery Backup Switching
Operating Voltage Range
V
CC
V
BATT
V
OUT
Output Voltage
CONDITONS
MIN
TYP
MAX
UNITS
4.50
2.00
5.50
4.00
V
V
V
V
V
V
I
OUT
= 1mA
V
CC
– 0.05
V
CC
– 0.10
V
CC
– 0.50
V
BATT
– 0.1
V
CC
– 0.005
V
CC
– 0.005
V
CC
– 0.250
V
BATT
– 0.02
0.6
0.6
0.04
0.04
G
I
OUT
= 50mA
I
OUT
= 250
μ
A, V
CC
< V
BATT
I
OUT
≤
50mA
V
OUT
in Battery Backup Mode
Supply Current (Exclude I
OUT
)
1.5
2.5
1
5
0.02
0.10
mA
mA
μ
A
μ
A
μ
A
μ
A
mV
mV
mV
G
Supply Current in Battery Backup Mode
V
CC
= 0V, V
BATT
= 2.8V
G
Battery Standby Current
(+ = Discharge, – = Charge)
Battery Switchover Threshold
V
CC
– V
BATT
Battery Switchover Hysteresis
BATT ON Output Voltage (Note 4)
BATT ON Output Short-Circuit Current (Note 4)
5.5 > V
CC
> V
BATT
+ 0.2V
–0.1
–1.0
G
Power Up
Power Down
70
50
20
I
SINK
= 3.2mA
BATT ON = V
OUT
Sink Current
BATT ON = 0V Source Current
0.4
V
35
1
mA
μ
A
0.5
25
Reset and Watchdog Timer
Reset Voltage Threshold
Reset Threshold Hysteresis
Reset Active Time
(Note 5)
Watchdog Time-Out Period,
Internal Oscillator
G
4.25
4.40
40
200
200
1.6
1.6
100
100
4.50
V
mV
ms
ms
sec
sec
ms
ms
OSC SEL HIGH, V
CC
= 5V
160
140
1.2
1.0
80
70
4032
960
240
280
2.00
2.25
120
140
4097
1025
G
Long Period, V
CC
= 5V
G
Short Period, V
CC
= 5V
G
Watchdog Time-Out Period, External Clock
(Note 6)
Reset Active Time PSRR
Watchdog Time-Out Period PSRR, Internal OSC
Minimum WDI Input Pulse Width
RESET Output Voltage At V
CC
= 1V
RESET and LOW LINE Output Voltage
(Note 4)
RESET and WDO Output Voltage
(Note 4)
Long Period
Short Period
Clock
Cycles
ms/V
ms/V
1
1
V
IL
= 0.4V, V
IH
= 3.5V
I
SINK
= 10
μ
A, V
CC
= 1V
I
SINK
= 1.6mA, V
CC
= 4.25V
I
SOURCE
= 1
μ
A, V
CC
= 5V
I
SINK
= 1.6mA, V
CC
= 5V
I
SOURCE
= 1
μ
A, V
CC
= 4.25V
G
200
ns
mV
4
200
0.4
V
V
V
V
3.5
0.4
3.5
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