參數(shù)資料
型號(hào)： LTC694CN8-3.3#TRPBF
廠(chǎng)商： LINEAR TECHNOLOGY CORP
元件分類(lèi)： 電源管理
英文描述： 1-CHANNEL POWER SUPPLY MANAGEMENT CKT, PDIP8
封裝： 0.300 INCH, LEAD FREE, PLASTIC, DIP-8
文件頁(yè)數(shù)： 15/20頁(yè)
文件大?。?/td> 189K
代理商： LTC694CN8-3.3#TRPBF
LTC694-3.3/LTC695-3.3
4
69453fb
ELECTRICAL CHARACTERISTICS The l denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at TA = 25°C. VCC = 3.3V, VBATT = 2V, unless otherwise noted.
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
Battery Back-Up Switching
Operating Voltage Range
VCC
VBATT
l
3.0
1.5
5.50
2.75
V
VOUT Output Voltage
IOUT = 1mA
l
VCC – 0.1
VCC – 0.2
VCC – 0.01
V
IOUT = 50mA
l
VCC – 0.8
VCC – 0.4
V
VOUT in Battery Back-Up Mode
IOUT = 250μA, VCC < VBATT
l
VBATT – 0.1
VBATT – 0.02
V
Supply Current (Exclude IOUT)IOUT ≤ 50μA, VCC = 3.6V
l
0.2
0.6
1.0
mA
Supply Current in Battery Back-Up Mode
VCC = 0V, VBATT = 2V
l
0.04
1
5
μA
Battery Standby Current (+ = Discharge, – = Charge) 3.6V > VCC > VBATT + 0.2V
l
–0.02
–0.10
0.02
0.10
μA
Battery Switchover Threshold (VCC – VBATT)
Power-Up
Power-Down
70
50
mV
Battery Switchover Hysteresis
20
mV
BATT ON Output Voltage (Note 4)
ISINK = 800μA
l
0.3
V
BATT ON Output Short-Circuit Current (Note 4)
BATT ON = VOUT, Sink Current
BATT ON = 0V, Source Current
l
0.5
25
125
mA
μA
Reset and Watchdog Timer
Reset Voltage Threshold
l
2.8
2.9
3.0
V
Reset Threshold Hysteresis
40
mV
Reset Active Time
OSC SEL HIGH, VCC = 3V
l
160
140
200
240
280
ms
Watchdog Timeout Period, Internal Oscillator
Long Period, VCC = 3V
l
1.2
1.0
1.6
2.0
2.25
sec
Short Period, VCC = 3V
l
80
70
100
120
140
ms
Watchdog Timeout Period, External Clock (Note 5)
Long Period, VCC = 3V
Short Period, VCC = 3V
l
4032
960
4097
1025
Clock
Cycles
Reset Active Time PSRR
4
ms/V
Watchdog Timeout Period PSRR, Internal OSC
Short Period
Long Period
2
32
ms/V
Minimum WDI Input Pulse Width
VIL = 0.4V, VIH = 3V
l
200
ns
RESET Output Voltage at VCC = 1V
ISINK = 10μA, VCC = 1V
l
4
200
mV
RESET and LOW
_
LINE Output Voltage (Note 4)
ISINK = 400μA, VCC = 2.8V
ISOURCE = 0.1μA, VCC = 3V
l
2.3
0.3
V
RESET and WDO Output Voltage (Note 4)
ISINK = 400μA, VCC = 3V
ISOURCE = 0.1μA, VCC = 2.8V
l
2.3
0.3
V
RESET, RESET, WDO, LOW
_
LINE
Output Short-Circuit Current (Note 4)
Output Source Current
Output Sink Current
l
13
9
25
μA
mA
WDI Input Threshold
Logic Low
Logic High
l
2.3
0.4
V
WDI Input Current
WDI = VOUT
WDI = 0V
l
–50
4
–8
50
μA
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