GENERAL DESCRIPTION

The ADM1085/ADM1086/ADM1087/ADM1088 are simple sequencing circuits that provide a time delay between the enabling of voltage regulators and/ordc-dc converters atpower upin multiple supply systems. When the output voltage of the first power module reaches a preset threshold,atime delayis initiated before an enable signal allows subsequent regulators to power up. Any number ofthese devices can be cascaded with regulators toallow sequencing ofmultiple power supplies.

FEATURES

Provide programmable time delays between enable signals

Can be cascadedwith power modules for multiple supply sequencing

Power supply monitoring from 0.6 V Output stages:

High voltage (up to 22 V) open-drain output (ADM1085/ADM1087)

Push-pull output (ADM1086/ADM1088)

Capacitor-adjustable time delays

High voltage (up to 22 V) Enable and VINinputs

Low power consumption (15 µA)

Specified over –40°C to +125°Ctemperature range

6-leadSC70package

APPLICATIONS

Desktop/notebook computers,servers

Low power portable equipment

Routers

Base stations

Line cards

Graphics cards

ADM1087属于集成电路（IC） > 监控器。亚德诺半导体技术有限公司制造生产的ADM1087监控器PMIC 监控器用于监视和/或控制电路中的电压轨，能够连接微控制器以维持一定的功率限值。监控器类型包括电池备用电路、监控器、多电压监控器、电源监控器、稳压器/监控器、复位计时器、定序器、简单复位/上电复位、智能开/关控制器、系统管理器、电压检测器和看门狗电路。