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| 型号： | ADM8695ARW-REEL |
| 厂商： | Analog Devices Inc |
| 文件页数： | 14/24页 |
| 文件大小： | 0K |
| 描述： | IC SUPERVSR MPU 4.65V ADJ 16SOIC |
| 标准包装： | 1,000 |
| 类型： | 备用电池电路 |
| 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： | 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) |
ADM8690/ADM8691/ADM8695
POWER-FAIL WARNING COMPARATOR
An additional comparator is provided for early warning of
failure in the microprocessor power supply. The power-fail
Data Sheet
PFO is normally used to interrupt the microprocessor so
that data can be stored in RAM and the shutdown procedure
executed before power is lost.
input (PFI) is compared to an internal 1.3 V reference. The
power-fail output (PFO) goes low when the voltage at PFI is
less than 1.3 V.
Typically, PFI is driven by an external voltage divider that senses
either the unregulated dc input to the system 5 V regulator or
INPUT
POWER
R1
R2
POWER- PFI
FAIL
INPUT
1.3V
PFO
POWER-
FAIL
OUTPUT
the regulated 5 V output. The voltage divider ratio can be chosen
such that the voltage at PFI falls below 1.3 V several milliseconds
before the 5 V power supply falls below the reset threshold.
Table 6. Input and Output Status in Battery Backup Mode
Figure 23. Power-Fail Comparator
Signal
V OUT
RESET
RESET
LOW LINE
BATT ON
WDI
WDO
PFI
PFO
CE IN
CE OUT
OSC IN
OSC SEL
Status
V OUT is connected to V BATT via an internal PMOS switch.
Logic low.
Logic high. The open circuit output voltage is equal to V OUT .
Logic low.
Logic high. The open circuit voltage is equal to V OUT .
WDI is ignored. It is internally disconnected from its internal pull-up resistor and does not source or sink current as long as
its input voltage is between GND and V OUT . The input voltage does not affect supply current.
Logic high. The open circuit voltage is equal to V OUT .
The power-fail comparator is turned off and has no effect on the power-fail output.
Logic low.
CE IN is ignored. It is internally disconnected from its internal pull-up resistor and does not source or sink current as long as
its input voltage is between GND and V OUT . The input voltage does not affect supply current.
Logic high. The open circuit voltage is equal to V OUT .
OSC IN is ignored.
OSC SEL is ignored.
Rev. C | Page 14 of 24
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相关代理商/技术参数 |
参数描述 |
|---|---|
| ADM8695ARWZ | 功能描述:IC SUPERVSR MPU 4.65V ADJ 16SOIC RoHS:是 类别:集成电路 (IC) >> PMIC - 监控器 系列:- 标准包装:1 系列:- 类型:简单复位/加电复位 监视电压数目:1 输出:开路漏极或开路集电极 复位:高有效 复位超时:- 电压 - 阀值:1.8V 工作温度:-40°C ~ 125°C 安装类型:表面贴装 封装/外壳:6-TSOP（0.059"，1.50mm 宽）5 引线 供应商设备封装:5-TSOP 包装:剪切带 (CT) 其它名称:NCP301HSN18T1GOSCT |
| ADM8696 | 制造商:AD 制造商全称:Analog Devices 功能描述:Microprocessor Supervisory Circuits |
| ADM8696AN | 功能描述:IC SUPERVSR MPU ADJ/RESET 16DIP RoHS:否 类别:集成电路 (IC) >> PMIC - 监控器 系列:- 标准包装:1 系列:- 类型:简单复位/加电复位 监视电压数目:1 输出:开路漏极或开路集电极 复位:高有效 复位超时:- 电压 - 阀值:1.8V 工作温度:-40°C ~ 125°C 安装类型:表面贴装 封装/外壳:6-TSOP（0.059"，1.50mm 宽）5 引线 供应商设备封装:5-TSOP 包装:剪切带 (CT) 其它名称:NCP301HSN18T1GOSCT |
| ADM8696ANZ | 功能描述:IC SUPERVSR MPU ADJ/RESET 16DIP RoHS:是 类别:集成电路 (IC) >> PMIC - 监控器 系列:- 标准包装:1 系列:- 类型:简单复位/加电复位 监视电压数目:1 输出:开路漏极或开路集电极 复位:高有效 复位超时:- 电压 - 阀值:1.8V 工作温度:-40°C ~ 125°C 安装类型:表面贴装 封装/外壳:6-TSOP（0.059"，1.50mm 宽）5 引线 供应商设备封装:5-TSOP 包装:剪切带 (CT) 其它名称:NCP301HSN18T1GOSCT |
| ADM8696ARU | 制造商:AD 制造商全称:Analog Devices 功能描述:Microprocessor Supervisory Circuits |
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