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Maxim > 方案 > 广播电视与无线通信

微处理器监控电路

数据资料
显示 标题/型号 关键优势
QV  PDF 微处理器监控电路，带有独立的VCC复位输出和手动复位输出
MAX6453, MAX6454, MAX6455, MAX6456

µP监控电路，具有独立的VCC复位和手动复位输出，简化机顶盒设计
QV  PDF 微处理器复位电路，带有长手动复位建立时间
MAX6443, MAX6444, MAX6445, MAX6446, MAX6447, MAX6448, MAX6449, MAX6450, MAX6451, MAX6452

µP复位电路，带有手动复位周期设置，在面板应用中可避免无效的复位操作
QV  PDF 高压、低电流电压监测器，SOT封装
MAX6457, MAX6458, MAX6459, MAX6460
QV  PDF 顺序复位按钮
DS1830, DS1830A
QV  PDF 3.3V/5V微管理器
DS1836
QV  PDF 双路、经济型复位芯片，带有手动复位按钮
DS1834, DS1834A, DS1834D
QV  PDF 多电源MicroMonitor™
DS1831, DS1831A, DS1831B
QV  PDF 3.3V、经济型复位芯片，带有手动复位按钮
DS1818
QV  PDF 5V、经济型复位芯片，带有手动复位按钮
DS1813
QV  PDF 5V、经济型复位芯片，带有高有效推挽输出
DS1812
QV  PDF SOT23封装、电源排序器
MAX6819, MAX6820

用于双/多电压供电系统的电源排序器，控制电源的通/断，保证系统的高可靠性
QV  PDF 3引脚、低功耗微处理器复位电路
MAX6800, MAX6801, MAX6802

3引脚/4引脚、低功耗µP复位电路，带有手动复位
QV  PDF 低电压、SOT23封装、微处理器监控电路，带有电源失效检测输入/输出、手动复位及看门狗定时器
MAX6701, MAX6701A, MAX6702, MAX6702A, MAX6703, MAX6703A, MAX6704, MAX6705, MAX6705A, MAX6706, MAX6706A, MAX6707, MAX6707A, MAX6708
QV  PDF SC70/µDFN封装、单/双路、低电压、低功耗、微处理器复位电路
MAX6381, MAX6382, MAX6383, MAX6384, MAX6385, MAX6386, MAX6387, MAX6388, MAX6389, MAX6390
QV  PDF 6引脚、微处理器复位电路，带有电源失效比较器
MAX6342, MAX6343, MAX6344, MAX6345
QV  PDF 双/三电压微处理器监控电路
MAX6351, MAX6352, MAX6353, MAX6354, MAX6355, MAX6356, MAX6357, MAX6358, MAX6359, MAX6360

业内首款多电压监控电路，采用SOT封装
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
QV  PDF 4引脚微处理器电压监视器，带有手动复位输入
MAX811, MAX812

4引脚SOT复位IC，带有手动复位
QV  PDF 3引脚微处理器复位电路
MAX803L, MAX803M, MAX803R, MAX803S, MAX803T, MAX803Z, MAX809J, MAX809L, MAX809M, MAX809R, MAX809S, MAX809T, MAX809Z, MAX810L, MAX810M, MAX810R, MAX810S, MAX810T, MAX810Z

业内首款3引脚SC70复位IC



Key Specifications:  Pushbutton Devices
Part Number Monitored Voltages Manual Reset Feature MR1 Setup Time MR2 Setup Time Reset Thresh.
(V)		 Reset Out tRESET Reset Thresh. Accur.
(%)		 ICC
(µA)		 Package/Pins
Active Low min @ +25°C max
MAX6453  2 Independent Soft and Hard Reset Outputs 1µs -
1.2 to 1.79
1.8 to 2.49
2.5 to 3.29
3.3 to 4.99
 Push-Pull 85ms to 300ms 2.5 16
SOT/6
MAX6454  2 Independent Soft and Hard Reset Outputs 1µs - Open Drain 85ms to 300ms 2.5 16
SOT/6
MAX6455  2 Independent Soft and Hard Reset Outputs
1µs (Soft)
3.36s (Hard)
 - Push-Pull 85ms to 300ms 2.5 16
SOT/6
MAX6456  2 Independent Soft and Hard Reset Outputs
1µs (Soft)
3.36s (Hard)
 - Open Drain 85ms to 300ms 2.5 16
SOT/6
MAX6443  1 Extended Setup Period 6.72s - Push-Pull 85ms to 300ms 2.5 16
SOT/4
MAX6444  1 Extended Setup Period 6.72s - Open Drain 85ms to 300ms 2.5 16
SOT/4
MAX6445  1 Extended Setup Period 6.72s 6.72s Push-Pull 85ms to 300ms 2.5 16
SOT/5
MAX6446  1 Extended Setup Period 6.72s 6.72s Open Drain 85ms to 300ms 2.5 16
SOT/5
MAX6447  1 Extended Setup Period 6.72s 1µs Push-Pull 85ms to 300ms 2.5 16
SOT/5
MAX6448  1 Extended Setup Period 6.72s 1µs Open Drain 85ms to 300ms 2.5 16
SOT/5
MAX6449  2 Extended Setup Period 6.72s 6.72s Push-Pull 85ms to 300ms 2.5 16
SOT/6
MAX6450  2 Extended Setup Period 6.72s 6.72s Open Drain 85ms to 300ms 2.5 16
SOT/6
MAX6451  2 Extended Setup Period 6.72s 1µs Push-Pull 85ms to 300ms 2.5 16
SOT/6
MAX6452  2 Extended Setup Period 6.72s 1µs Open Drain 85ms to 300ms 2.5 16
SOT/6
MAX6390  1 Single Soft/Hard Reset Output 1µs - Open Drain >1s 1.5 13
µDFN/6
SC70/4
See All Pushbutton Devices (17)

Key Specifications:  Power-Supply Sequencers and Voltage Trackers
Part Number Option Interface Input Chan. VIN
(V)		 Features RoHS Available Industry Qualified Oper. Temp.
(°C)		 Package/Pins Smallest Available Pckg.
(mm2)
max max w/pins
DS1830  Sequence
Factory Fixed
R/C Adjustable
 2 <6 Reset Output Yes - -40 to +85
µMAX/8
PDIP(N)/8
SOIC(N)/8
 79.7
DS1830A  Reset Output - -40 to +85
µMAX/8
PDIP(N)/8
SOIC(N)/8
 79.7
MAX6819  Enable Input Automotive - General
-40 to +85
-40 to +125
0 to +70
SOT/6
 9
MAX6820  - Automotive - General
-40 to +85
-40 to +125
0 to +70
SOT/6
 9
See All Power-Supply Sequencers and Voltage Trackers (35)

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
MAX6457 
1.2 to 1.8
1.8 to 2.5
2.5 to 3.3
3.3 to 5.5
>=5.5
 Open Drain -
85ms to 300ms
<1ms
 No Watchdog -
High Voltage (>6V)
Latched Output
 - 12.5
MAX6458 
1.2 to 1.8
1.8 to 2.5
2.5 to 3.3
3.3 to 5.5
>=5.5
 Open Drain -
85ms to 300ms
<1ms
 No Watchdog -
High Voltage (>6V)
Latched Output
Overvoltage/Window Monitor
 - 12.5
MAX6460 
1.2 to 1.8
1.8 to 2.5
2.5 to 3.3
3.3 to 5.5
>=5.5
 - Open Drain <1ms No Watchdog -
High Voltage (>6V)
Overvoltage/Window Monitor
 - 12.5
MAX803 
1.8 to 2.5
2.5 to 3.3
3.3 to 5.5
 Open Drain - 85ms to 300ms No Watchdog - - 1.5 60
MAX809 
1.8 to 2.5
2.5 to 3.3
3.3 to 5.5
 Push-Pull - 85ms to 300ms No Watchdog - - 1.5 60
MAX810 
1.8 to 2.5
2.5 to 3.3
3.3 to 5.5
 - Push-Pull 85ms to 300ms No Watchdog - - 1.5 60
MAX6800 
2.5 to 3.3
3.3 to 5.5
 - Push-Pull
1ms to 15ms
15ms to 85ms
85ms to 300ms
 No Watchdog - - - 12
MAX6801 
2.5 to 3.3
3.3 to 5.5
 Push-Pull -
1ms to 15ms
15ms to 85ms
85ms to 300ms
 No Watchdog - - - 12
MAX6802 
2.5 to 3.3
3.3 to 5.5
 Open Drain -
1ms to 15ms
15ms to 85ms
85ms to 300ms
 No Watchdog - - - 12
DS1812  3.3 to 5.5 - Push-Pull 85ms to 300ms No Watchdog - - 2.5 40
DS1813  3.3 to 5.5 Open Drain - 85ms to 300ms No Watchdog - Manual Reset 2.5 40
DS1818  2.5 to 3.3 Open Drain - 85ms to 300ms No Watchdog - Manual Reset 2.5 35
MAX6704 
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 Push-Pull 85ms to 300ms Input (WDI) 1s to 2s
Adjustable Reset Input
Manual Reset
Power Fail Comparator/Low Battery Detect
 - 25
MAX6705 
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 - 85ms to 300ms
Input (WDI)
Input/Output (WDI/WDO)
 1s to 2s
Adjustable Reset Input
Manual Reset
Power Fail Comparator/Low Battery Detect
 - 25
MAX6706 
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 85ms to 300ms
Input (WDI)
Input/Output (WDI/WDO)
 1s to 2s
Adjustable Reset Input
Manual Reset
Power Fail Comparator/Low Battery Detect
 - 25
MAX6707 
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 - 85ms to 300ms
Input (WDI)
Input/Output (WDI/WDO)
 1s to 2s
Adjustable Reset Input
Manual Reset
Power Fail Comparator/Low Battery Detect
 - 25
MAX6708 
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 Push-Pull 85ms to 300ms No Watchdog -
Adjustable Reset Input
Manual Reset
Power Fail Comparator/Low Battery Detect
 - 25
MAX823 
1.8 to 2.5
2.5 to 3.3
3.3 to 5.5
 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
 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
 Push-Pull Push-Pull 85ms to 300ms No Watchdog - Manual Reset - 12
MAX6381 
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
>1s
 No Watchdog - - 1.5 13
MAX6382 
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
>1s
 No Watchdog - - 1.5 13
MAX6383 
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
>1s
 No Watchdog - - 1.5 13
MAX6384 
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
>1s
 No Watchdog - Manual Reset 1.5 13
MAX6385 
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
>1s
 No Watchdog - Manual Reset 1.5 13
MAX6386 
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
>1s
 No Watchdog - Manual Reset 1.5 13
MAX811 
2.5 to 3.3
3.3 to 5.5
 Push-Pull - 85ms to 300ms No Watchdog - Manual Reset 1.5 15
MAX812 
2.5 to 3.3
3.3 to 5.5
 - Push-Pull 85ms to 300ms No Watchdog - Manual Reset 1.5 15
MAX6342 
1.2 to 1.8
1.8 to 2.5
2.5 to 3.3
3.3 to 5.5
 Push-Pull - 85ms to 300ms No Watchdog -
Adjustable Reset Input
Manual Reset
Power Fail Comparator/Low Battery Detect
 1.5 40
MAX6343 
1.2 to 1.8
1.8 to 2.5
2.5 to 3.3
3.3 to 5.5
 Open Drain - 85ms to 300ms No Watchdog -
Adjustable Reset Input
Manual Reset
Power Fail Comparator/Low Battery Detect
 1.5 40
MAX6344 
1.2 to 1.8
1.8 to 2.5
2.5 to 3.3
3.3 to 5.5
 - Push-Pull 85ms to 300ms No Watchdog -
Adjustable Reset Input
Manual Reset
Power Fail Comparator/Low Battery Detect
 1.5 40
MAX6345 
1.2 to 1.8
1.8 to 2.5
2.5 to 3.3
3.3 to 5.5
 Push-Pull Push-Pull 85ms to 300ms No Watchdog -
Adjustable Reset Input
Manual Reset
Power Fail Comparator/Low Battery Detect
 1.5 40
See All Supervisors (1 Monitored Voltage) (274)

Key Specifications:  Supervisors (2 Monitored Voltages)
Part Number Interface 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
MAX6459  R/C Adjustable
1.2 to 1.8
1.8 to 2.5
2.5 to 3.3
3.3 to 5.5
>=5.5
 Open Drain - <1ms No Watchdog -
Adjustable Reset Input
High Voltage (>6V)
Overvoltage/Window Monitor
 - 12.5
DS1834  Factory Fixed
2.5 to 3.3
3.3 to 5.5
 Open Drain - 85ms to 300ms No Watchdog -
Manual Reset
Power Fail Comparator/Low Battery Detect
 2.5 50
DS1834A  Factory Fixed
2.5 to 3.3
3.3 to 5.5
 Open Drain - 85ms to 300ms No Watchdog -
Manual Reset
Power Fail Comparator/Low Battery Detect
 2.5 50
DS1834D  Factory Fixed
2.5 to 3.3
3.3 to 5.5
 - - 85ms to 300ms No Watchdog -
Manual Reset
Power Fail Comparator/Low Battery Detect
 2.5 50
MAX6351  Factory Fixed
1.2 to 1.8
1.8 to 2.5
2.5 to 3.3
3.3 to 5.5
 Push-Pull - 85ms to 300ms No Watchdog - Manual Reset 1.5 50
MAX6352  Factory Fixed
1.2 to 1.8
1.8 to 2.5
2.5 to 3.3
3.3 to 5.5
 Open Drain - 85ms to 300ms No Watchdog - Manual Reset 1.5 50
MAX6353  Factory Fixed
1.2 to 1.8
1.8 to 2.5
2.5 to 3.3
3.3 to 5.5
 Push-Pull - 85ms to 300ms No Watchdog - Manual Reset 1.5 50
MAX6354  Factory Fixed
1.2 to 1.8
1.8 to 2.5
2.5 to 3.3
3.3 to 5.5
 Push-Pull - 85ms to 300ms No Watchdog - Manual Reset 1.5 50
MAX6358  Factory Fixed
1.2 to 1.8
1.8 to 2.5
2.5 to 3.3
3.3 to 5.5
 Open Drain - 85ms to 300ms
Extended Setup Period
Input (WDI)
1s to 2s
>2s
 Manual Reset 1.5 50
MAX6359  Factory Fixed
1.2 to 1.8
1.8 to 2.5
2.5 to 3.3
3.3 to 5.5
 Push-Pull - 85ms to 300ms
Extended Setup Period
Input (WDI)
1s to 2s
>2s
 Manual Reset 1.5 50
MAX6360  Factory Fixed
1.2 to 1.8
1.8 to 2.5
2.5 to 3.3
3.3 to 5.5
 Push-Pull - 85ms to 300ms
Extended Setup Period
Input (WDI)
1s to 2s
>2s
 Manual Reset 1.5 50
MAX6387 
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
>1s
 No Watchdog -
Adjustable Reset Input
Manual Reset
 1.5 13
MAX6388 
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
>1s
 No Watchdog - Adjustable Reset Input 1.5 13
MAX6389 
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
>1s
 No Watchdog - Adjustable Reset Input 1.5 13
See All Supervisors (2 Monitored Voltages) (84)

Key Specifications:  Supervisors (3 Monitored Voltages)
Part Number Interface 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
MAX6701 
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 - 85ms to 300ms
Input (WDI)
Input/Output (WDI/WDO)
 1s to 2s
Adjustable Reset Input
Manual Reset
 - 25
MAX6702 
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
Input (WDI)
Input/Output (WDI/WDO)
 1s to 2s - 25
MAX6703 
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 -
Input (WDI)
Input/Output (WDI/WDO)
 1s to 2s - 25
MAX6355 
1.2 to 1.8
1.8 to 2.5
2.5 to 3.3
3.3 to 5.5
 Open Drain - No Watchdog - 1.5 50
MAX6356 
1.2 to 1.8
1.8 to 2.5
2.5 to 3.3
3.3 to 5.5
 Push-Pull - No Watchdog - 1.5 50
MAX6357 
1.2 to 1.8
1.8 to 2.5
2.5 to 3.3
3.3 to 5.5
 Push-Pull - No Watchdog - 1.5 50
See All Supervisors (3 Monitored Voltages) (32)

Key Specifications:  Supervisors (4 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
DS1831A 
Factory Fixed
R/C Adjustable
2.5 to 3.3
3.3 to 5.5
 Open Drain
15ms to 85ms
85ms to 300ms
300ms to 1s
Input/Output (WDI/WDO)
Pin Selectable
1s to 2s
<1s
 Manual Reset 2.5 100
DS1831B  No Watchdog -
See All Supervisors (4 Monitored Voltages) (26)



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