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参数资料
| 型号： | ADM811MARTZ-REEL7 |
| 厂商： | Analog Devices Inc |
| 文件页数： | 8/12页 |
| 文件大小： | 0K |
| 描述： | IC SUPERVISOR RESET 4.38V SOT143 |
| 标准包装： | 1 |
| 类型： | 简单复位/加电复位 |
| 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： | 4.38V |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | TO-253-4，TO-253AA |
| 供应商设备封装： | SOT-143 |
| 包装： | 标准包装 |
| 其它名称： | ADM811MARTZ-REEL7DKR |
ADM811/ADM812
INTERFACING TO OTHER DEVICES
OUTPUT
The ADM811/ADM812 are designed to integrate with as many
devices as possible. One feature of the ADM811/ADM812 is the
reset output, which is directly proportional to V CC (this is guar-
anteed only while V CC is greater than 1 V). This enables the part
to be used with both 3 V and 5 V, or any nominal voltage within
the minimum and maximum specifications for V CC .
BENEFITS OF A VERY ACCURATE RESET
THRESHOLD
Because the ADM811/ADM812 can operate effectively even
when there are large degradations of the supply voltages, the
possibility of a malfunction during a power failure is greatly
reduced. Another advantage of the ADM811/ADM812 is its
very accurate internal voltage reference circuit. Combined,
these benefits produce an exceptionally reliable microprocessor
supervisory circuit.
Data Sheet
V CC
V CC
ADM811
RESET
GND
Figure 11. Ensuring a Valid RESET Output Down to V CC = 0 V
ENSURING A VALID RESET/RESET
OUTPUT DOWN TO V CC = 0 V
When V CC falls below 0.8 V, the RESET/RESET of the ADM811/
ADM812 no longer sinks current. Therefore, a high impedance
CMOS logic input connected to RESET/RESET can drift to
undetermined logic levels. To eliminate this problem, a 100 k?
resistor should be connected from RESET/RESET to ground.
Rev. G | Page 8 of 12
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相关代理商/技术参数 |
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| ADM811RART | 制造商:AD 制造商全称:Analog Devices 功能描述:Microprocessor Supervisory Circuit in 4-Lead SOT-143 with DSP |
| ADM811RART-REEL | 制造商:Analog Devices 功能描述:PROCESSOR SUPERVISOR 2.63V 10UA 4PIN SOT-143 - Tape and Reel |
| ADM811RARTREEL7 | 制造商:Analog Devices 功能描述: |
| ADM811RART-REEL7 | 功能描述:IC SUPVSR W/RESET 2.63V SOT-143 RoHS:否 类别:集成电路 (IC) >> PMIC - 监控器 系列:- 标准包装:400 系列:- 类型:备用电池电路 监视电压数目:1 输出:开路漏极，推挽式 复位:高有效/低有效 复位超时:最小为 35 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（0.295"，7.50mm 宽） 供应商设备封装:16-SOIC W 包装:带卷 (TR) 其它名称:ADM691ARZ-REEL7TR |
| ADM811RART-REEL-7 | 制造商:AD 制造商全称:Analog Devices 功能描述:Microprocessors Supervisory Circuit in 4-Lead SOT-143 |
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