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ADM1087

更新时间： 2024-01-24 03:13:39
品牌 Logo 应用领域
亚德诺 - ADI /
页数 文件大小 规格书
16页 360K
描述
Simple Sequencers in 6-Lead SC70

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ADM1087 技术参数

是否无铅：含铅是否Rohs认证：不符合
生命周期：Obsolete零件包装代码：TSSOP
包装说明：MO-203AB, PLASTIC, SC70-6针数：6
Reach Compliance Code：not_compliantECCN代码：EAR99
HTS代码：8542.39.00.01风险等级：5.33
Is Samacsys：N可调阈值：YES
模拟集成电路 - 其他类型：POWER SUPPLY SUPPORT CIRCUITJESD-30 代码：R-PDSO-G6
JESD-609代码：e0长度：2 mm
信道数量：1功能数量：1
端子数量：6最高工作温度：125 °C
最低工作温度：-40 °C封装主体材料：PLASTIC/EPOXY
封装代码：TSSOP封装等效代码：TSSOP6,.08
封装形状：RECTANGULAR封装形式：SMALL OUTLINE, THIN PROFILE, SHRINK PITCH
峰值回流温度（摄氏度）：220电源：2.5/3.3 V
认证状态：Not Qualified座面最大高度：1.1 mm
子类别：Power Management Circuits最大供电电流 (Isup)：0.02 mA
最大供电电压 (Vsup)：3.6 V最小供电电压 (Vsup)：2.25 V
标称供电电压 (Vsup)：3.3 V表面贴装：YES
技术：CMOS温度等级：AUTOMOTIVE
端子面层：Tin/Lead (Sn85Pb15)端子形式：GULL WING
端子节距：0.65 mm端子位置：DUAL
处于峰值回流温度下的最长时间：30宽度：1.25 mm
Base Number Matches：1

ADM1087 数据手册

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Simple Sequencers™ in 6-Lead SC70  
ADM1085/ADM1086/ADM1087/ADM1088  
FUNCTIONAL BLOCK DIAGRAMS  
FEATURES  
V
CC  
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  
V
CAPACITOR  
ADJUSTABLE  
DELAY  
IN  
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 VIN inputs  
Low power consumption (15 µA)  
Specified over –40°C to +125°C temperature range  
6-lead SC70 package  
GND  
CEXT  
ENIN  
V
CC  
ADM1087/ADM1088  
V
CAPACITOR  
ADJUSTABLE  
DELAY  
IN  
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  
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  
© 2004 Analog Devices, Inc. All rights reserved.  
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