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参数资料
| 型号： | MAX791ESE+T |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 4/19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： | 2,500 |
| 类型： | 备用电池电路 |
| 监视电压数目： | 1 |
| 输出： | 推挽式，图腾柱 |
| 复位： | 低有效 |
| 复位超时： | 最小为 140 ms |
| 电压 - 阀值： | 4.65V |
| 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： | 带卷 (TR) |
Microprocessor Supervisory Circuit
ELECTRICAL CHARACTERISTICS (continued)
(V CC = 4.75V to 5.5V, VBATT = 2.8V, T A = T MIN to T MAX , unless otherwise noted.)
PARAMETER
WDI Threshold Voltage
(Note 4)
WDI Input Current
V IH
V IL
WDI = 0V
WDI = V OUT
CONDITIONS
MIN
0.75 x V CC
-50
TYP
-10
20
MAX
0.8
50
UNITS
V
μA
POWER-FAIL COMPARATOR
PFI Input Threshold
PFI Leakage Current
– — — –
P F O Output Voltage
– — — –
P F O Short-Circuit Current
– — — –
PFI-to- P F O Delay
V CC = 5V
I SINK = 3.2mA
I SOURCE = 1μA, V CC = 5V
Output sink current
Output source current
V IN = -20mV, V OD = 15mV
V IN = 20mV, V OD = 15mV
1.20
3.5
1
1.25
±0.01
60
15
15
55
1.30
±25
0.4
100
V
nA
V
mA
μA
μs
CHIP-ENABLE GATING
– — –
C E IN Leakage Current
– – – –
— —
C E IN-to- C E OUT Resistance
(Note 5)
Disabled mode
Enabled mode
±0.005
75
±1
150
μA
?
– — –
C E OUT Short-Circuit Current
(Reset Active)
– – –
— —
C E IN-to-C E OUT Propagation
Delay (Note 6)
– — –
Disabled mode, C E OUT = 0V
50 ? source impedance driver, C LOAD = 50pF
0.1
0.75
6
2.0
10
mA
ns
– — –
C E OUT Output Voltage High
(Reset Active)
– – – –
— — — — —
R E S E T -to- C E OUT Delay
V CC = 5V, I OUT = -100μA
V CC = 0V, VBATT = 2.8V, I OUT = 1μA
Power down
3.5
2.7
15
V
μs
MANUAL RESET INPUT
– — –
M R Minimum Pulse Width
– – –
– — — — — —
M R -to - R E S E T
Propagation Delay
– — –
M R Threshold
V CC = 5V
25
15
7
1.25
μs
μs
V
– — –
M R Pull-Up Current
– — –
M R = 0V
23
250
μA
Note 1: Either V CC or VBATT can go to 0V, if the other is greater than 2.0V.
Note 2: The supply current drawn by the MAX791 from the battery (excluding I OUT ) typically goes to 10μA when
(VBATT - 1V) < V CC < VBATT. In most applications, this is a brief period as V CC falls through this region.
Note 3: "+" = battery-discharging current, "-" = battery-charging current.
Note 4: WDI is internally connected to a voltage-divider between V OUT and GND. If unconnected, WDI is driven to 1.6V (typ),
disabling the watchdog function.
Note 5: The chip-enable resistance is tested with V CC = 4.75V V –C—E– IN = V C—E– OUT = V CC / 2.
– – – –
— —
Note 6: The chip-enable propagation delay is measured from the 50% point at C E IN to the 50% point at C E OUT.
4
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX791EUE | 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 |
| MAX791EUE+ | 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 |
| MAX791EUE+T | 功能描述:监控电路 Microprocessor Supervisory Circuit 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 |
| MAX791EUE-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 |
| MAX791MJE | 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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