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Maxim > 方案 > 汽车电子
看门狗定时器
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| 显示 |
标题/型号 |
关键优势 |
| QV |
电容可调的纳安级功耗监控电路
MAX16056, MAX16057, MAX16058, MAX16059
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| QV PDF |
单/双/三电压微处理器监控电路，带有独立的看门狗输出
MAX6730A, MAX6731A, MAX6732A, MAX6733A, MAX6734A, MAX6735A
| 单/双/三电压µP监控电路，具有独立的看门狗输出，可监视低至0.63V的电压 |
| QV PDF |
单/双/三电压微处理器监控电路，带有独立的看门狗输出
MAX6730, MAX6731, MAX6732, MAX6733, MAX6734, MAX6735
| 单/双/三电压µP监控电路，具有独立的看门狗输出，可监视低至0.63V的电压 |
| QV PDF |
微处理器复位电路，提供电容可调的复位/看门狗延迟时间
MAX6746, MAX6747, MAX6748, MAX6749, MAX6750, MAX6751, MAX6752, MAX6753
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| QV PDF |
微处理器监控电路，窗式(最小/最大)看门狗定时及手动复位
MAX6323, MAX6324
| 业内首款µP监控电路，具有窗式看门狗定时器和手动复位 |
| QV PDF |
引脚可设置的看门狗定时器
MAX6369, MAX6370, MAX6371, MAX6372, MAX6373, MAX6374
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| QV PDF |
5引脚、微处理器监控电路，带有看门狗及手动复位
MAX6316, MAX6316M, MAX6317, MAX6318, MAX6319, MAX6320, MAX6321, MAX6322
| 通用的可定制SOT复位 + 看门狗IC，提供3,224中独特选择 |
| QV PDF |
5引脚、微处理器监控电路，带有看门狗定时器及手动复位
MAX823, MAX823L, MAX823M, MAX823R, MAX823S, MAX823T, MAX823Y, MAX823Z, MAX824, MAX824L, MAX824M, MAX824R, MAX824S, MAX824T, MAX824Y, MAX824Z, MAX825, MAX825L, MAX825M, MAX825R, MAX825S, MAX825T, MAX825Y, MAX825Z
| 业内首款SOT复位IC，带有看门狗和手动复位功能 |
| Key Specifications:
Supervisors (1 Monitored Voltage) |
| Part Number |
Reset Threshold Range (V) |
Active-Low Reset Output |
Active-High Reset Output |
Min. Reset Timeout Range |
Watchdog Feature |
Nom. Watchdog Timeout Range |
Supervisor Features |
Reset Thresh. Acc. (% @+25°C) |
Max. ICC (µA) |
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MAX6730A
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1.2 to 1.8
1.8 to 2.5
2.5 to 3.3
3.3 to 5.5
|
Open Drain
|
-
|
1ms to 15ms
15ms to 85ms
85ms to 300ms
>1s
|
Extended Setup Period
Input (WDI)
Input/Output (WDI/WDO)
|
1s to 2s
>2s
|
Manual Reset
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2.5
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39
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MAX6731A
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1.2 to 1.8
1.8 to 2.5
2.5 to 3.3
3.3 to 5.5
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Push-Pull
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-
|
1ms to 15ms
15ms to 85ms
85ms to 300ms
>1s
|
Extended Setup Period
Input (WDI)
Input/Output (WDI/WDO)
|
1s to 2s
>2s
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Manual Reset
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2.5
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39
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MAX6730
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1.2 to 1.8
1.8 to 2.5
2.5 to 3.3
3.3 to 5.5
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Open Drain
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-
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1ms to 15ms
15ms to 85ms
85ms to 300ms
>1s
|
Extended Setup Period
Input (WDI)
Input/Output (WDI/WDO)
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1s to 2s
>2s
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Manual Reset
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2.5
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37
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MAX6731
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1.2 to 1.8
1.8 to 2.5
2.5 to 3.3
3.3 to 5.5
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Push-Pull
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-
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1ms to 15ms
15ms to 85ms
85ms to 300ms
>1s
|
Extended Setup Period
Input (WDI)
Input/Output (WDI/WDO)
|
1s to 2s
>2s
|
Manual Reset
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2.5
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37
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MAX6746
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1.2 to 1.8
1.8 to 2.5
2.5 to 3.3
3.3 to 5.5
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Push-Pull
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-
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1ms to 15ms
15ms to 85ms
85ms to 300ms
300ms to 1s
<1ms
>1s
Adjustable
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Cap Adjustable
Input (WDI)
|
1s to 2s
<1s
>2s
Adjustable
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Manual Reset
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2
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10
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MAX6747
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1.2 to 1.8
1.8 to 2.5
2.5 to 3.3
3.3 to 5.5
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Open Drain
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-
|
1ms to 15ms
15ms to 85ms
85ms to 300ms
300ms to 1s
<1ms
>1s
Adjustable
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Cap Adjustable
Input (WDI)
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1s to 2s
<1s
>2s
Adjustable
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Manual Reset
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2
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10
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MAX6748
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1.2 to 1.8
1.8 to 2.5
2.5 to 3.3
3.3 to 5.5
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Push-Pull
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-
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1ms to 15ms
15ms to 85ms
85ms to 300ms
300ms to 1s
<1ms
>1s
Adjustable
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Cap Adjustable
Input (WDI)
|
1s to 2s
<1s
>2s
Adjustable
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Adjustable Reset Input
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2
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10
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MAX6749
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1.2 to 1.8
1.8 to 2.5
2.5 to 3.3
3.3 to 5.5
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Open Drain
|
-
|
1ms to 15ms
15ms to 85ms
85ms to 300ms
300ms to 1s
<1ms
>1s
Adjustable
|
Cap Adjustable
Input (WDI)
|
1s to 2s
<1s
>2s
Adjustable
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Adjustable Reset Input
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2
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10
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MAX6752
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1.2 to 1.8
1.8 to 2.5
2.5 to 3.3
3.3 to 5.5
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Push-Pull
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-
|
1ms to 15ms
15ms to 85ms
85ms to 300ms
300ms to 1s
<1ms
>1s
Adjustable
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Cap Adjustable
Input (WDI)
Windowed
|
1s to 2s
<1s
>2s
Adjustable
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-
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2
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10
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MAX6753
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1.2 to 1.8
1.8 to 2.5
2.5 to 3.3
3.3 to 5.5
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Open Drain
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-
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1ms to 15ms
15ms to 85ms
85ms to 300ms
300ms to 1s
<1ms
>1s
Adjustable
|
Cap Adjustable
Input (WDI)
Windowed
|
1s to 2s
<1s
>2s
Adjustable
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-
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2
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10
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MAX823
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1.8 to 2.5
2.5 to 3.3
3.3 to 5.5
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Push-Pull
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-
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85ms to 300ms
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Input (WDI)
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1s to 2s
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Manual Reset
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-
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24
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MAX824
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1.8 to 2.5
2.5 to 3.3
3.3 to 5.5
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Push-Pull
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Push-Pull
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85ms to 300ms
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Input (WDI)
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1s to 2s
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-
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-
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24
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MAX825
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1.8 to 2.5
2.5 to 3.3
3.3 to 5.5
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Push-Pull
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Push-Pull
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85ms to 300ms
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No Watchdog
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-
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Manual Reset
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-
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12
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MAX6323
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2.5 to 3.3
3.3 to 5.5
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Push-Pull
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-
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85ms to 300ms
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Input/Output (WDI/WDO)
Windowed
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1s to 2s
<1s
>2s
Adjustable
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Manual Reset
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1.5
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45
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MAX6324
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2.5 to 3.3
3.3 to 5.5
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Open Drain
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-
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85ms to 300ms
|
Input/Output (WDI/WDO)
Windowed
|
1s to 2s
<1s
>2s
Adjustable
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Manual Reset
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1.5
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45
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MAX6316M
|
2.5 to 3.3
3.3 to 5.5
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Bidirectional
|
-
|
1ms to 15ms
15ms to 85ms
85ms to 300ms
>1s
|
Input (WDI)
|
1s to 2s
<1s
>2s
|
Manual Reset
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1.5
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12
|
| See All Supervisors (1 Monitored Voltage) (270) |
| Key Specifications:
Supervisors (2 Monitored Voltages) |
| Part Number |
Interface |
Reset Threshold Range (V) |
Active-Low Reset Output |
Min. Reset Timeout Range |
Watchdog Feature |
Nom. Watchdog Timeout Range |
Supervisor Features |
Reset Thresh. Acc. (% @+25°C) |
Max. ICC (µA) |
|
MAX6732A
|
Factory Fixed
|
0 to 1.2
1.2 to 1.8
1.8 to 2.5
2.5 to 3.3
3.3 to 5.5
|
Open Drain
|
1ms to 15ms
15ms to 85ms
85ms to 300ms
>1s
|
Extended Setup Period
Input (WDI)
Input/Output (WDI/WDO)
|
1s to 2s
>2s
|
-
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2.5
|
39
|
|
MAX6733A
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Factory Fixed
|
0 to 1.2
1.2 to 1.8
1.8 to 2.5
2.5 to 3.3
3.3 to 5.5
|
Push-Pull
|
1ms to 15ms
15ms to 85ms
85ms to 300ms
>1s
|
Extended Setup Period
Input (WDI)
Input/Output (WDI/WDO)
|
1s to 2s
>2s
|
-
|
2.5
|
39
|
|
MAX6732
|
Factory Fixed
|
0 to 1.2
1.2 to 1.8
1.8 to 2.5
2.5 to 3.3
3.3 to 5.5
|
Open Drain
|
1ms to 15ms
15ms to 85ms
85ms to 300ms
>1s
|
Extended Setup Period
Input (WDI)
Input/Output (WDI/WDO)
|
1s to 2s
>2s
|
-
|
2.5
|
37
|
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MAX6733
|
Factory Fixed
|
0 to 1.2
1.2 to 1.8
1.8 to 2.5
2.5 to 3.3
3.3 to 5.5
|
Push-Pull
|
1ms to 15ms
15ms to 85ms
85ms to 300ms
>1s
|
Extended Setup Period
Input (WDI)
Input/Output (WDI/WDO)
|
1s to 2s
>2s
|
-
|
2.5
|
37
|
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MAX6750
|
Factory Fixed
R/C Adjustable
|
1.2 to 1.8
1.8 to 2.5
2.5 to 3.3
3.3 to 5.5
|
Push-Pull
|
1ms to 15ms
15ms to 85ms
85ms to 300ms
300ms to 1s
<1ms
>1s
Adjustable
|
Cap Adjustable
Input (WDI)
|
1s to 2s
<1s
>2s
Adjustable
|
Adjustable Reset Input
|
2
|
10
|
|
MAX6751
|
Factory Fixed
R/C Adjustable
|
1.2 to 1.8
1.8 to 2.5
2.5 to 3.3
3.3 to 5.5
|
Open Drain
|
1ms to 15ms
15ms to 85ms
85ms to 300ms
300ms to 1s
<1ms
>1s
Adjustable
|
Cap Adjustable
Input (WDI)
|
1s to 2s
<1s
>2s
Adjustable
|
Adjustable Reset Input
|
2
|
10
|
| See All Supervisors (2 Monitored Voltages) (84) |
| Key Specifications:
Supervisors (3 Monitored Voltages) |
| Part Number |
Interface |
Reset Threshold Range (V) |
Active-Low Reset Output |
Min. Reset Timeout Range |
Watchdog Feature |
Nom. Watchdog Timeout Range |
Supervisor Features |
Reset Thresh. Acc. (% @+25°C) |
Max. ICC (µA) |
|
MAX6734A
|
Factory Fixed
R/C Adjustable
|
0 to 1.2
1.2 to 1.8
1.8 to 2.5
2.5 to 3.3
3.3 to 5.5
|
Open Drain
|
1ms to 15ms
15ms to 85ms
85ms to 300ms
>1s
|
Extended Setup Period
Input (WDI)
Input/Output (WDI/WDO)
|
1s to 2s
>2s
|
Adjustable Reset Input
Manual Reset
|
2.5
|
39
|
|
MAX6735A
|
Factory Fixed
R/C Adjustable
|
0 to 1.2
1.2 to 1.8
1.8 to 2.5
2.5 to 3.3
3.3 to 5.5
|
Push-Pull
|
1ms to 15ms
15ms to 85ms
85ms to 300ms
>1s
|
Extended Setup Period
Input (WDI)
Input/Output (WDI/WDO)
|
1s to 2s
>2s
|
Adjustable Reset Input
Manual Reset
|
2.5
|
39
|
|
MAX6734
|
Factory Fixed
R/C Adjustable
|
0 to 1.2
1.2 to 1.8
1.8 to 2.5
2.5 to 3.3
3.3 to 5.5
|
Open Drain
|
1ms to 15ms
15ms to 85ms
85ms to 300ms
>1s
|
Extended Setup Period
Input (WDI)
Input/Output (WDI/WDO)
|
1s to 2s
>2s
|
Adjustable Reset Input
Manual Reset
|
2.5
|
37
|
|
MAX6735
|
Factory Fixed
R/C Adjustable
|
0 to 1.2
1.2 to 1.8
1.8 to 2.5
2.5 to 3.3
3.3 to 5.5
|
Push-Pull
|
1ms to 15ms
15ms to 85ms
85ms to 300ms
>1s
|
Extended Setup Period
Input (WDI)
Input/Output (WDI/WDO)
|
1s to 2s
>2s
|
Adjustable Reset Input
Manual Reset
|
2.5
|
37
|
| See All Supervisors (3 Monitored Voltages) (32) |
| Key Specifications:
Watchdog Timers |
| Part Number |
Watchdog Feature |
Nom. Watchdog Timeout Range |
Min. Watchdog Startup Delay |
Watchdog Output |
Max. ICC (µA) |
Industry Qualified |
Package |
Smallest Available Package (max w/pins) (mm2) |
Operating Temp. Range (°C) |
|
MAX6369
|
Input (WDI)
Input/Output (WDI/WDO)
Pin Selectable
Watchdog Only
|
1s to 2s
<1s
>2s
Adjustable
|
<60s
|
Open-Drain
|
20
|
Automotive - General
|
SOT/8
|
9
|
-40 to +85
0 to +70
|
|
MAX6370
|
Input (WDI)
Input/Output (WDI/WDO)
Pin Selectable
Watchdog Only
|
1s to 2s
<1s
>2s
Adjustable
|
<60s
|
Push-Pull
|
20
|
Automotive - General
|
SOT/8
|
9
|
-40 to +85
0 to +70
|
|
MAX6371
|
Input (WDI)
Input/Output (WDI/WDO)
Pin Selectable
Watchdog Only
|
1s to 2s
<1s
>2s
Adjustable
|
60s
|
Open-Drain
|
20
|
Automotive - General
|
SOT/8
|
9
|
-40 to +85
0 to +70
|
|
MAX6372
|
Input (WDI)
Input/Output (WDI/WDO)
Pin Selectable
Watchdog Only
|
1s to 2s
<1s
>2s
Adjustable
|
60s
|
Push-Pull
|
20
|
Automotive - General
|
SOT/8
|
9
|
-40 to +85
0 to +70
|
|
MAX6373
|
Input (WDI)
Input/Output (WDI/WDO)
Pin Selectable
Watchdog Only
|
1s to 2s
<1s
>2s
Adjustable
|
>60s
|
Open-Drain
|
20
|
Automotive - General
|
SOT/8
|
9
|
-40 to +85
0 to +70
|
|
MAX6374
|
Input (WDI)
Input/Output (WDI/WDO)
Pin Selectable
Watchdog Only
|
1s to 2s
<1s
>2s
Adjustable
|
>60s
|
Push-Pull
|
20
|
Automotive - General
|
SOT/8
|
9
|
-40 to +85
0 to +70
|
| See All Watchdog Timers (7) |
|
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