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| 型号： | MAX6355MSUT+T |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 7/11页 |
| 文件大小： | 0K |
| 描述： | IC SUPERVISOR MPU SOT23-6 |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 2,500 |
| 类型： | 多压监控器 |
| 监视电压数目： | 3 |
| 输出： | 开路漏极或开路集电极 |
| 复位： | 低有效 |
| 复位超时： | 最小为 100 ms |
| 电压 - 阀值： | 2.93V，4.38V，可调 |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | SOT-23-6 |
| 供应商设备封装： | SOT-6 |
| 包装： | 带卷 (TR) |
Dual/Triple-Voltage
μP Supervisory Circuits
Detailed Description
Supply Voltages
The MAX6351–MAX6360 microprocessor (μP) superviso-
ry circuits maintain system integrity by alerting the μP to
fault conditions. These ICs monitor multiple-supply sys-
tems. The output reset state is guaranteed to remain
viable while either V CC 1 or V CC 2 is above +1V.
Threshold Levels
All the possible input voltage threshold level combina-
tions are indicated by a two-letter code in the Voltage
Threshold Levels table.
3
Reset Outputs
The MAX6351 provides two active-low, push-pull reset
outputs, one corresponding to each of its two moni-
tored voltages. The MAX6353/MAX6356/MAX6359 have
an active-low, push-pull reset output that is referenced
to V CC 1. The MAX6354/MAX6357/MAX6360 have an
active-low, push-pull reset output that is referenced to
V CC 2. The MAX6352/MAX6355/MAX6358 provide an
active-low open-drain reset. The reset outputs are
maintained as long as at least one of the supplies is
above +1V.
Negative-Going V CC Transients
The MAX6351–MAX6360 are designed to ignore short
negative-going V CC 1 and V CC 2 transients. See the
(5) 6 V CC 1
MR
GLITCH
FILTER
Maximum V CC Transient Duration vs. Reset Threshold
Overdrive graph in the Typical Operating Characteristics.
Third Input Voltage
(MAX6355/MAX6356/MAX6357)
The MAX6355/MAX6356/MAX6357 provide an addition-
al input to monitor a third voltage. The threshold voltage
V TH 1
RST (1)
at RSTIN is typically 1.22V. To monitor a voltage higher
than 1.22V, connect a resistive divider to the circuit as
shown in Figure 2. The threshold at V EXT is:
V EXT_TH = 1.22V ?
? R1 + R2 ?
?
?
?
4 V CC 2
RESET
GENERATOR
RST2 (5)
R2
Note that RSTIN is powered by V CC 1, and its voltage
(5) (RSTIN)
V TH 2
1.22V
RST1 (1)
must therefore remain lower than or equal to V CC 1.
Watchdog Input
(MAX6358/MAX6359/MAX6360)
The MAX6358/MAX6359/MAX6360 include a dual-
mode watchdog timer to monitor μP activity. The flexi-
ble timeout architecture provides a startup mode,
allowing complicated systems to complete lengthy
boots, and a normal mode, allowing the supervisor to
provide quick alerts when processor activity fails.
(5) (WDI)
WATCHDOG
TIMER
V EXT
R1
MAX6355
MAX6356
MAX6357
RSTIN
2
GND
MAX6351–MAX6360
R2
NOTE: PIN 1 IS RST1 FOR THE MAX6351 AND RST FOR THE
MAX6352–MAX6360. PIN 5 IS RST2 FOR THE MAX6351, RSTIN
FOR THE MAX6355/MAX6356/MAX6357, WDI FOR THE MAX6358/
MAX6359/MAX6360, AND V CC 1 FOR THE MAX6352/MAX6353/MAX6354.
Figure 1. Functional Diagram
V CC 1 ≥ V RSTIN
Figure 2. Monitoring a Third Voltage
_______________________________________________________________________________________
7
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX6355MTUK-T | 制造商:MAXIM 制造商全称:Maxim Integrated Products 功能描述:Dual/Triple-Voltage レP Supervisory Circuits |
| MAX6355MTUT | 制造商:Maxim Integrated Products 功能描述:- Cut Tape Product |
| MAX6355MTUT+ | 制造商:Maxim Integrated Products 功能描述:PROCESSOR SUPERVISOR 4.38V/3.08V 20UA 6PIN SOT-23 - Cut Tape Product |
| MAX6355MTUT+T | 功能描述:监控电路 Triple uPower Supervisor RoHS:否 制造商:STMicroelectronics 监测电压数: 监测电压: 欠电压阈值: 过电压阈值: 输出类型:Active Low, Open Drain 人工复位:Resettable 监视器:No Watchdog 电池备用开关:No Backup 上电复位延迟（典型值）:10 s 电源电压-最大:5.5 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:UDFN-6 封装:Reel |
| MAX6355MTUT-T | 功能描述:监控电路 RoHS:否 制造商:STMicroelectronics 监测电压数: 监测电压: 欠电压阈值: 过电压阈值: 输出类型:Active Low, Open Drain 人工复位:Resettable 监视器:No Watchdog 电池备用开关:No Backup 上电复位延迟（典型值）:10 s 电源电压-最大:5.5 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:UDFN-6 封装:Reel |
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