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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 PDF |
125nA监控电路，可通过电容调节复位和看门狗超时周期
MAX16056, MAX16057, MAX16058, MAX16059
| 可通过电容调节的纳安级功耗监控电路 |
| 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/看门狗超时周期
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 Thresh.
(V) |
Reset Out |
Reset Out |
tRESET |
Watchdog Feature |
Watchdog Timeout |
Supervisor Features |
Reset Thresh. Accur.
(%) |
ICC
(µA) |
| Active Low |
Active High |
min |
@ +25°C |
max |
| MAX16056 NEW! |
| 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 |
- |
Adjustable |
| Cap Adjustable | | Input (WDI) |
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Adjustable |
Manual Reset |
- |
0.125 |
| MAX16057 NEW! |
| 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 |
- |
Adjustable |
No Watchdog |
- |
Manual Reset |
- |
0.125 |
| MAX16058 NEW! |
| 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 |
- |
Adjustable |
| Cap Adjustable | | Input (WDI) |
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Adjustable |
Manual Reset |
- |
0.125 |
| MAX16059 NEW! |
| 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 |
- |
Adjustable |
No Watchdog |
- |
Manual Reset |
- |
0.125 |
| MAX6730A |
| 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 | | >1s |
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| Extended Setup Period | | Input (WDI) | | Input/Output (WDI/WDO) |
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Manual Reset |
2.5 |
39 |
| MAX6731A |
| 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 |
- |
| 1ms to 15ms | | 15ms to 85ms | | 85ms to 300ms | | >1s |
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| Extended Setup Period | | Input (WDI) | | Input/Output (WDI/WDO) |
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Manual Reset |
2.5 |
39 |
| MAX6730 |
| 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 | | >1s |
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| Extended Setup Period | | Input (WDI) | | Input/Output (WDI/WDO) |
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Manual Reset |
2.5 |
37 |
| MAX6731 |
| 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 |
- |
| 1ms to 15ms | | 15ms to 85ms | | 85ms to 300ms | | >1s |
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| Extended Setup Period | | Input (WDI) | | Input/Output (WDI/WDO) |
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Manual Reset |
2.5 |
37 |
| MAX6746 |
| 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 |
- |
| 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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Manual Reset |
2 |
10 |
| MAX6747 |
| 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 |
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| Cap Adjustable | | Input (WDI) |
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Manual Reset |
2 |
10 |
| MAX6748 |
| 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 |
- |
| 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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Adjustable Reset Input |
2 |
10 |
| MAX6749 |
| 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 |
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| Cap Adjustable | | Input (WDI) |
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Adjustable Reset Input |
2 |
10 |
| MAX6752 |
| 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 |
- |
| 1ms to 15ms | | 15ms to 85ms | | 85ms to 300ms | | 300ms to 1s | | <1ms | | >1s | | Adjustable |
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| Cap Adjustable | | Input (WDI) | | Windowed |
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|
- |
2 |
10 |
| MAX6753 |
| 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 |
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| Cap Adjustable | | Input (WDI) | | Windowed |
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- |
2 |
10 |
| MAX823 |
| 1.8 to 2.5 | | 2.5 to 3.3 | | 3.3 to 5.5 |
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Push-Pull |
- |
85ms to 300ms |
Input (WDI) |
1s to 2s |
Manual Reset |
- |
24 |
| MAX824 |
| 1.8 to 2.5 | | 2.5 to 3.3 | | 3.3 to 5.5 |
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Push-Pull |
Push-Pull |
85ms to 300ms |
Input (WDI) |
1s to 2s |
- |
- |
24 |
| MAX825 |
| 1.8 to 2.5 | | 2.5 to 3.3 | | 3.3 to 5.5 |
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Push-Pull |
Push-Pull |
85ms to 300ms |
No Watchdog |
- |
Manual Reset |
- |
12 |
| MAX6323 |
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Push-Pull |
- |
85ms to 300ms |
| Input/Output (WDI/WDO) | | Windowed |
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Manual Reset |
1.5 |
45 |
| MAX6324 |
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Open Drain |
- |
85ms to 300ms |
| Input/Output (WDI/WDO) | | Windowed |
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Manual Reset |
1.5 |
45 |
| MAX6316M |
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Bidirectional |
- |
| 1ms to 15ms | | 15ms to 85ms | | 85ms to 300ms | | >1s |
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Input (WDI) |
|
Manual Reset |
1.5 |
12 |
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See All Supervisors (1 Monitored Voltage) (274)
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| Key Specifications: Supervisors (2 Monitored Voltages) |
| Part Number |
Interface |
Reset Thresh.
(V) |
Reset Out |
tRESET |
Watchdog Feature |
Watchdog Timeout |
Supervisor Features |
Reset Thresh. Accur.
(%) |
ICC
(µA) |
| Active Low |
min |
@ +25°C |
max |
| 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) |
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- |
2.5 |
39 |
| MAX6733A |
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 |
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Push-Pull |
| 1ms to 15ms | | 15ms to 85ms | | 85ms to 300ms | | >1s |
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| Extended Setup Period | | Input (WDI) | | Input/Output (WDI/WDO) |
|
|
- |
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) |
|
|
- |
2.5 |
37 |
| 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) |
|
|
- |
2.5 |
37 |
| 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 |
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| Cap Adjustable | | Input (WDI) |
|
|
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) |
|
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Adjustable Reset Input |
2 |
10 |
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See All Supervisors (2 Monitored Voltages) (84)
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| Key Specifications: Supervisors (3 Monitored Voltages) |
| Part Number |
Interface |
Reset Thresh.
(V) |
Reset Out |
tRESET |
Watchdog Feature |
Watchdog Timeout |
Supervisor Features |
Reset Thresh. Accur.
(%) |
ICC
(µA) |
| Active Low |
min |
@ +25°C |
max |
| 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) |
|
|
| Adjustable Reset Input | | Manual Reset |
|
2.5 |
39 |
| MAX6735A |
Push-Pull |
39 |
| MAX6734 |
Open Drain |
37 |
| MAX6735 |
Push-Pull |
37 |
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See All Supervisors (3 Monitored Voltages) (32)
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| Key Specifications: Watchdog Timers |
| Part Number |
Watchdog Feature |
Watchdog Timeout |
Watchdog Startup Delay |
Watchdog Output |
ICC
(µA) |
RoHS Available |
Industry Qualified |
Package/Pins |
Smallest Available Pckg.
(mm2) |
Oper. Temp.
(°C) |
| min |
max |
max w/pins |
| MAX6369 |
| Input (WDI) | | Input/Output (WDI/WDO) | | Pin Selectable | | Watchdog Only |
|
|
<60s |
Open-Drain |
20 |
Yes |
Automotive - General |
|
9 |
|
| MAX6370 |
<60s |
Push-Pull |
|
| MAX6371 |
60s |
Open-Drain |
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| MAX6372 |
60s |
Push-Pull |
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| MAX6373 |
>60s |
Open-Drain |
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| MAX6374 |
>60s |
Push-Pull |
|
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See All Watchdog Timers (7)
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