Datasheet > ADM1085AKS-REEL7

ADM1085AKS-REEL7

更新时间： 2024-11-28 22:47:35

品牌	Logo	应用领域
亚德诺 - ADI		光电二极管
页数	文件大小	规格书
16页	360K
描述
Simple Sequencers in 6-Lead SC70

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ADM1085AKS-REEL7 数据手册

Simple Sequencers^™in 6-Lead SC70

ADM1085/ADM1086/ADM1087/ADM1088

FUNCTIONAL BLOCK DIAGRAMS

FEATURES

Provide programmable time delays between enable

signals

Can be cascaded with power modules for multiple

supply sequencing

Power supply monitoring from 0.6 V

Output stages:

ADM1085/ADM1086

CAPACITOR

ADJUSTABLE

DELAY

ENOUT

0.6V

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 V_INinputs

Low power consumption (15 µA)

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

6-lead SC70 package

GND

CEXT

ENIN

ADM1087/ADM1088

CAPACITOR

ADJUSTABLE

DELAY

ENOUT

0.6V

APPLICATIONS

Desktop/notebook computers, servers

Low power portable equipment

Routers

GND

CEXT

ENIN

Figure 1.

Base stations

Line cards

Graphics cards

GENERAL DESCRIPTION

property ensures compatibility with enable input logic levels of

different regulators and converters.

The ADM1085/ADM1086/ADM1087/ADM1088 are simple

sequencing circuits that provide a time delay between the

enabling of voltage regulators and/or dc-dc converters at power-

up in multiple supply systems. When the output voltage of the

first power module reaches a preset threshold, a time delay is

initiated before an enable signal allows subsequent regulators to

power up. Any number of these devices can be cascaded with

regulators to allow sequencing of multiple power supplies.

All four models have a dedicated enable input pin that allows

the output signal to the regulator to be controlled externally.

This is an active-high input (ENIN) for the ADM1085 and

ENIN

ADM1086, and an active-low input (

and ADM1088.

) for the ADM1087

The simple sequencers are specified over the extended −40°C to

+125°C temperature range. With low current consumption of 15

µA (typ) and 6-lead SC70 packaging, the parts are suitable for

low-power portable applications.

Threshold levels can be set with a pair of external resistors in a

voltage divider configuration. By choosing appropriate resistor

values, the threshold can be adjusted to monitor voltages as low

as 0.6 V.

Table 1. Selection Table

The ADM1086 and ADM1088 have push-pull output stages,

Output Stage

ENOUT

with active-high (ENOUT) and active-low (

) logic

ENOUT

Part No.

Enable Input

ENIN

ENOUT

outputs, respectively. The ADM1085 has an active-high

(ENOUT) logic output; the ADM1087 has an active-low

) output. Both the ADM1085 and ADM1087 have

open-drain output stages that can be pulled up to voltage levels

as high as 22 V through an external resistor. This level-shifting

ADM1085

ADM1086

ADM1087

ADM1088

Open-Drain

Push-Pull

ENOUT

(

ENIN

Open-Drain

Push-Pull

ENIN

Rev. 0

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

Fax: 781.326.8703

www.analog.com

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ADM1085AKS-REEL7 替代型号

型号	品牌	替代类型	描述	数据表
ADM1086AKS-REEL7	ADI	完全替代	Simple Sequencers in 6-Lead SC70
ADM1086AKSZ-REEL7	ADI	功能相似	Simple Sequencers in 6-Lead SC7
ADM1085AKSZ-REEL7	ADI	功能相似	Simple Sequencers in 6-Lead SC7

与ADM1085AKS-REEL7相关器件

型号	品牌	获取价格	描述	数据表
ADM1085AKSZ-REEL7	ADI	获取价格	Simple Sequencers in 6-Lead SC7
ADM1086	ADI	获取价格	Simple Sequencers in 6-Lead SC70
ADM1086AKS-R7	ADI	获取价格	IC 1-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO6, MO-203AB, PLASTIC, SC70-6, Power Management
ADM1086AKS-REEL7	ADI	获取价格	Simple Sequencers in 6-Lead SC70
ADM1086AKS-RL	ADI	获取价格	IC 1-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO6, MO-203AB, PLASTIC, SC70-6, Power Management
ADM1086AKSZ-REEL7	ADI	获取价格	Simple Sequencers in 6-Lead SC7
ADM1087	ADI	获取价格	Simple Sequencers in 6-Lead SC70
ADM1087AKS-R7	ADI	获取价格	IC 1-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO6, MO-203AB, PLASTIC, SC70-6, Power Management
ADM1087AKS-REEL7	ADI	获取价格	Simple Sequencers in 6-Lead SC70
ADM1087AKS-RL	ADI	获取价格	IC 1-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO6, MO-203AB, PLASTIC, SC70-6, Power Management

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