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参数资料
型号： ADM8691ARN
厂商： Analog Devices Inc
文件页数： 1/24页
文件大小： 0K
描述： IC SUPERVSR MPU 4.65V ADJ 16SOIC
标准包装： 48
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 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（0.154"，3.90mm 宽）
供应商设备封装： 16-SOIC
包装： 管件

Microprocessor
Supervisory Circuits
Data Sheet
FEATURES
Upgrade for the ADM690 , ADM691 , ADM695 and
for the MAX690, MAX691, MAX695
Specified over temperature
Low power consumption: 0.7 mW
Precision voltage monitor
ADM8690 / ADM8691 / ADM8695
FUNCTIONAL BLOCK DIAGRAMS
V BATT
V OUT
V CC
Reset assertion down to 1 V V CC
Low switch on resistance: 0.7 Ω normal, 7 Ω in backup
4.65V 1
RESET
GENERATOR 2
RESET
High current drive: 100 mA
Watchdog timer: 100 ms, 1.6 sec, or adjustable
Standby current: 400 nA
WATCHDOG
INPUT (WDI)
WATCHDOG
TRANSITION DETECTOR
(1.6sec)
ADM8690
Automatic battery backup power switching
Extremely fast gating of chip enable signals (3 ns)
Voltage monitor for power fail
Available in TSSOP package
APPLICATIONS
Microprocessor systems
POWER-FAIL
INPUT (PFI)
1.3V
1 VOLTAGE DETECTOR = 4.65V
2 RESET PULSE WIDTH = 50ms
Figure 1. ADM8690
BATT ON
POWER-FAIL
OUTPUT (PFO)
Computers
Controllers
Intelligent instruments
Automotive systems
V BATT
ADM8691/
ADM8695
V OUT
PRODUCT HIGHLIGHTS
The ADM8690 is available in 8-lead PDIP and SOIC packages
and provides the following functions:
1.
Power-on reset output during power-up, power-down,
V CC
CE IN
4.65V 1
CE OUT
LOW LINE
RESET
and brownout conditions. The RESET output remains
operational with V CC as low as 1 V.
OSC IN
OSC SEL
RESET AND
WATCHDOG
TIME BASE
RESET
GENERATOR
RESET
2.
Battery backup switching for CMOS RAM, CMOS micro-
3.
processor, or other low power logic.
Reset pulse if the optional watchdog timer is not toggled
WATCHDOG
INPUT (WDI)
WATCHDOG
TRANSITION DETECTOR
WATCHDOG
TIMER
WATCHDOG
OUTPUT (WDO)
within a specified time.
POWER-FAIL
INPUT (PFI)
POWER-FAIL
4.
1.3 V threshold detector for power-fail warning, low battery
1.3V
OUTPUT (PFO)
detection, or to monitor a power supply other than 5 V.
The ADM8691 and ADM8695 are available in 16-lead PDIP
and small outline packages (including TSSOP) and provide
three additional functions:
1 VOLTAGE DETECTOR = 4.65V
Figure 2. ADM8691 / ADM8695
1.
2.
3.
Write protection of CMOS RAM or EEPROM.
Adjustable reset and watchdog timeout periods.
Separate watchdog timeout, backup battery switchover, and
low V CC status outputs.
Rev. C
Information furnished by Analog Devices is believed to be accurate and reliable. However, no
responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other
rights of third parties that may result from its use. Specifications subject to change without notice. No
license is granted by implication or otherwise under any patent or patent rights of Analog Devices.
Trademarks and registered trademarks are the property of their respective owners.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781.329.4700 www.analog.com
Fax: 781.461.3113 ?2006–2011 Analog Devices, Inc. All rights reserved.
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相关代理商/技术参数
参数描述
ADM8691ARN-REEL 功能描述:IC SUPERVSR MPU 4.65V ADJ 16SOIC 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
ADM8691ARNZ 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
ADM8691ARU 功能描述:IC SUPERVSR MPU 4.65V ADJ16TSSOP 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
ADM8691ARU-REEL 功能描述:IC SUPERVSR MPU 4.65V ADJ16TSSOP 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
ADM8691ARUZ 功能描述:IC SUPERVSR MPU 4.65V ADJ16TSSOP 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
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