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參數(shù)資料
| 型號： | LTC693IS#PBF |
| 廠商： | LINEAR TECHNOLOGY CORP |
| 元件分類： | 電源管理 |
| 英文描述： | 1-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO16 |
| 封裝： | PLASTIC, SOL-16 |
| 文件頁數(shù)： | 10/16頁 |
| 文件大?。?/td> | 308K |
| 代理商： | LTC693IS#PBF |
3
LTC692/LTC693
ELECTRICAL C
C
HARA TERISTICS
VCC = Full Operating Range, VBATT = 2.8V, TA = 25°C, unless otherwise noted.
PARAMETER
CONDITONS
MIN
TYP
MAX
UNITS
Battery Backup Switching
Operating Voltage Range
VCC
4.50
5.50
V
VBATT
2.00
4.00
V
VOUT Output Voltage
IOUT = 1mA
VCC – 0.05
VCC – 0.005
V
q
VCC – 0.10
VCC – 0.005
V
IOUT = 50mA
VCC – 0.50
VCC – 0.250
V
VOUT in Battery Backup Mode
IOUT = 250A, VCC < VBATT
VBATT – 0.1
VBATT – 0.02
V
Supply Current (Exclude IOUT)IOUT ≤ 50mA
0.6
1.5
mA
q
0.6
2.5
mA
Supply Current in Battery Backup Mode
VCC = 0V, VBATT = 2.8V
0.04
1
A
q
0.04
5
A
Battery Standby Current
5.5 > VCC > VBATT + 0.2V
– 0.1
0.02
A
(+ = Discharge, – = Charge)
q
– 1.0
0.10
A
Battery Switchover Threshold
Power Up
70
mV
VCC – VBATT
Power Down
50
mV
Battery Switchover Hysteresis
20
mV
BATT ON Output Voltage (Note 4)
ISINK = 3.2mA
0.4
V
BATT ON Output Short-Circuit Current (Note 4)
BATT ON = VOUT Sink Current
35
mA
BATT ON = 0V Source Current
0.5
1
25
A
Reset and Watchdog Timer
Reset Voltage Threshold
q
4.25
4.40
4.50
V
Reset Threshold Hysteresis
40
mV
Reset Active Time
OSC SEL HIGH, VCC = 5V
160
200
240
ms
(Note 5)
q
140
200
280
ms
Watchdog Time-Out Period,
Long Period, VCC = 5V
1.2
1.6
2.00
sec
Internal Oscillator
q
1.0
1.6
2.25
sec
Short Period, VCC = 5V
80
100
120
ms
q
70
100
140
ms
Watchdog Time-Out Period, External Clock
Long Period
4032
4097
Clock
(Note 6)
Short Period
960
1025
Cycles
Reset Active Time PSRR
1
ms/V
Watchdog Time-Out Period PSRR, Internal OSC
1
ms/V
Minimum WDI Input Pulse Width
VIL = 0.4V, VIH = 3.5V
q
200
ns
RESET Output Voltage At VCC = 1V
ISINK = 10A, VCC = 1V
4
200
mV
RESET and LOW LINE Output Voltage
ISINK = 1.6mA, VCC = 4.25V
0.4
V
(Note 4)
ISOURCE = 1A, VCC = 5V
3.5
V
RESET and WDO Output Voltage
ISINK = 1.6mA, VCC = 5V
0.4
V
(Note 4)
ISOURCE = 1A, VCC = 4.25V
3.5
V
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