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参数资料
| 型号： | LTC693CSW#PBF |
| 厂商： | Linear Technology |
| 文件页数： | 4/20页 |
| 文件大小： | 0K |
| 描述： | IC MPU SUPERVISRY CIRCUIT 16SOIC |
| 标准包装： | 47 |
| 类型： | 简单复位/加电复位 |
| 监视电压数目： | 1 |
| 输出： | 开路漏极或开路集电极 |
| 复位： | 高有效/低有效 |
| 复位超时： | 最小为 140 ms |
| 电压 - 阀值： | 4.4V |
| 工作温度： | 0°C ~ 70°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 16-SOIC（0.295"，7.50mm 宽） |
| 供应商设备封装： | 16-SOIC |
| 包装： | 管件 |
LTC692/LTC693
ELECTRICAL CHARACTERISTICS The l denotes the speci?cations which apply over the full operating
temperature range, otherwise speci?cations are at T A = 25°C. V CC = full operating range, V BATT = 2.8V, unless otherwise noted.
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
Watchdog Timeout Period, Internal Oscillator
Watchdog Timeout Period, External Clock
(Note 6)
Long Period, V CC = 5V
Short Period, V CC = 5V
Long Period
Short Period
l
l
1.2
1.0
80
70
4032
960
1.6
1.6
100
100
2.00
2.25
120
140
4097
1025
sec
sec
ms
ms
Clock
Cycles
Reset Active Time PSRR
Watchdog Timeout Period PSRR, Internal OSC
1
1
ms/V
ms/V
Minimum WDI Input Pulse Width
V IL = 0.4V, V IH = 3.5V
l
200
ns
RESET Output Voltage at V CC = 1V
RESET and LOW LINE Output Voltage
(Note 4)
RESET and WDO Output Voltage
(Note 4)
I SINK = 10μA, V CC = 1V
I SINK = 1.6mA, V CC = 4.25V
I SOURCE = 1μA, V CC = 5V
I SINK = 1.6mA, V CC = 5V
I SOURCE = 1μA, V CC = 4.25V
3.5
3.5
4
200
0.4
0.4
mV
V
V
V
V
RESET, RESET, WDO , LOW LINE Output
Output Source Current
1
3
25
μA
Short-Circuit Current (Note 4)
WDI Input Threshold
Output Sink Current
Logic Low
Logic High
3.5
25
0.8
mA
V
V
WDI Input Current
WDI = V OUT
WDI = 0V
l
l
–50
4
–8
50
μA
μA
Power-Fail Detector
PFI Input Threshold
V CC = 5V
l
1.25
1.3
1.35
V
PFI Input Threshold PSRR
0.3
mV/V
PFI Input Current
±0.01
±25
nA
PFO Output Voltage (Note 4)
I SINK = 3.2mA
I SOURCE = 1μA
3.5
0.4
V
V
PFO Short-Circuit Source Current
(Note 4)
PFI Comparator Response Time (Falling)
PFI Comparator Response Time (Rising)
(Note 4)
PFI = High, PFO = 0V
PFI = Low, PFO = VOUT
Δ V IN = –20mV, V OD = 15mV
Δ V IN = 20mV, V OD = 15mV with 10kΩ
Pull-Up
1
3
25
2
40
8
25
μA
mA
μs
μs
μs
Chip Enable Gating
CE IN Threshold
CE IN Pull-Up Current (Note 7)
CE OUT Output Voltage
V IL
V IH
I SINK = 3.2mA
I SOURCE = 3mA
I SOURCE = 1μA, VCC = 0V
2.0
V OUT – 1.50
V OUT – 0.05
3
0.8
0.4
V
V
μA
V
V
V
CE Propagation Delay
CE OUT Output Short-Circuit Current
V CC = 5V, C L = 20pF
Output Source Current
l
20
20
30
35
45
ns
ns
mA
Output Sink Current
35
mA
0692fb
4
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