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参数资料
| 型号： | MAX6426UK50-T |
| 厂商： | MAXIM INTEGRATED PRODUCTS INC |
| 元件分类： | 电源管理 |
| 英文描述： | Low-Power, SC70/SOT µP Reset Circuits with Capacitor-Adjustable Reset Timeout Delay |
| 中文描述： | 1-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO5 |
| 封装： | MO-178AA, SOT-23, 5 PIN |
| 文件页数： | 7/10页 |
| 文件大小： | 254K |
| 代理商： | MAX6426UK50-T |
MAX6340/MAX6421–MAX6426
Low-Power, SC70/SOT P Reset Circuits with
Capacitor-Adjustable Reset Timeout Delay
6
_______________________________________________________________________________________
tor between RESET and VCC holds RESET high when
VCC falls below 1V (Figure 4). Open-drain RESET ver-
sions are not recommended for applications requiring
valid logic for VCC down to zero.
Layout Consideration
SRT is a precise current source. When developing the
layout for the application, be careful to minimize board
capacitance and leakage currents around this pin.
Traces connected to SRT should be kept as short as
possible. Traces carrying high-speed digital signals
and traces with large voltage potentials should be rout-
ed as far from SRT as possible. Leakage current and
stray capacitance (e.g., a scope probe) at this pin
could cause errors in the reset timeout period. When
evaluating these parts, use clean prototype boards to
ensure accurate reset periods.
MAX6421
MAX6424
GND
VCC
RESET
100k
Figure 3. Ensuring RESET Valid to VCC = 0
MAX6422
GND
VCC
RESET
100k
Figure 4. Ensuring RESET Valid to VCC = 0
SUFFIX
MIN
TYP
MAX
16
1.536
1.575
1.614
17
1.623
1.665
1.707
18
1.755
1.800
1.845
19
1.853
1.900
1.948
20
1.950
2.000
2.050
21
2.048
2.100
2.153
22
2.133
2.188
2.243
23
2.313
2.371
24
2.340
2.400
2.460
25
2.438
2.500
2.563
26
2.559
2.625
2.691
27
2.633
2.700
2.768
28
2.730
2.800
2.870
29
2.852
2.925
2.998
30
2.925
3.000
3.075
31
2.998
3.075
3.152
32
3.120
3.200
3.280
33
3.218
3.300
3.383
34
3.315
3.400
3.485
35
3.413
3.500
3.558
36
3.510
3.600
3.690
37
3.608
3.700
3.793
38
3.705
3.800
3.895
39
3.803
3.900
3.998
40
3.900
4.000
4.100
41
3.998
4.100
4.203
42
4.095
4.200
4.305
43
4.193
4.300
4.408
44
4.266
4.375
4.484
45
4.388
4.500
4.613
46
4.509
4.625
4.741
47
4.583
4.700
4.818
48
4.680
4.800
4.920
49
4.778
4.900
5.023
50
4.875
5.000
5.125
Table 1. Reset Threshold Voltage Suffix
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