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参数资料
| 型号： | MAX792TESE+ |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 10/16页 |
| 文件大小： | 0K |
| 描述： | IC SUPERVISOR MPU 16-SOIC |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 50 |
| 类型： | 简单复位/加电复位 |
| 监视电压数目： | 1 |
| 输出： | 推挽式，推挽式 |
| 复位： | 高有效/低有效 |
| 复位超时： | 最小为 140 ms |
| 电压 - 阀值： | 3.06V |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 16-SOIC（0.154"，3.90mm 宽） |
| 供应商设备封装： | 16-SOIC |
| 包装： | 管件 |
Microprocessor and Nonvolatile
Memory Supervisory Circuits
MR
25 μ s MIN
V IN
3
RESET
12 μ s TYP
4 RESET IN/INT
V CC
RESET
2
TO μ P
CE IN OV
CE OUT
15 μ s TYP
5
MAX792
LLIN/REFOUT
RESET
1
TO μ P
Figure 2. Manual-Reset Timing Diagram
MANUAL RESET
GND
12
LOW LINE
10
TO μ P NMI
*
9
MR
Figure 4a. Connection for Internal Threshold Mode
OTHER
RESET
SOURCES
*
.
.
.
MAX792
MAX820
R1
V IN
3
V CC
* DIODES NOT REQUIRED ON OPEN-DRAIN OUTPUTS
RESET IN/INT
RESET
2
TO μ P
Figure 3. Diode "OR" connections allow multiple reset sources
to connect to MR .
R2
MAX792
LLIN/REFOUT
RESET
1
TO μ P
Low-Line Output
In internal threshold mode, the low-line comparator
monitors V CC with a threshold voltage typically 120mV
above the reset threshold, and with 15mV of hysteresis.
For normal operation (V CC above the reset threshold),
LOWLINE is pulled to V CC . Use LOWLINE to provide an NMI
R3
R3 = 1.30V x V CC MAX
GND
12
LOW LINE
10
TO μ P NMI
to the μP, as described in the previous section, when
V LOW LINE x I MAX
V CC begins to fall (Figure 4).
R2 = 1.30V x V CC MAX – R3
V RESET x I MAX
I MAX = THE MAXIMUM DESIRED CURRENT
THROUGH THE VOLTAGE DIVIDED.
Reset Function
The MAX792/MAX820 provide both RESET and RESET
outputs. The RESET and RESET outputs ensure that the
R1 = V CC MAX
I MAX
– (R2 + R3)
μP powers up in a known state, and prevent code-exe-
cution errors during power-up, power-down, or
brownout conditions.
The reset function will be asserted during the following
conditions:
1) V CC less than the programmed reset threshold.
2) MR less than 1.30V typ.
3) Reset remains asserted for 200ms typ after V CC
rises above the reset threshold or after MR has
exceeded 1.30V typ.
Figure 4b. Connection for External Threshold Programming Mode
When reset is asserted, all the internal counters are
reset, the watchdog output ( WDO ) and watchdog-pulse
output ( WDPO ) are set high, and the set watchdog-time-
out input (SWT) is set to (V CC - 0.6V) if it is not already
connected to V CC (for internal timeouts). The chip-
enable transmission gate is also disabled while reset is
asserted; the chip-enable input ( CE IN) becomes high
impedance and the chip-enable output ( CE OUT) is
pulled up to V CC .
10
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX792TESE+ | 功能描述:监控电路 MPU & NV Memory 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 |
| MAX792TESE+T | 功能描述:监控电路 MPU & NV Memory 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 |
| MAX792TESE-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 |
| MAX792TMJE | 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 |
| MAX793RCPE | 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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