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參數(shù)資料
| 型號(hào)： | ADM1087 |
| 廠商： | Analog Devices, Inc. |
| 英文描述： | Simple Sequencers in 6-Lead SC70 |
| 中文描述： | 簡(jiǎn)單排序6引腳SC70 |
| 文件頁數(shù)： | 1/16頁 |
| 文件大?。?/td> | 299K |
| 代理商： | ADM1087 |
Simple Sequencers
in 6-Lead SC70
ADM1085/ADM1086/ADM1087/ADM1088
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:
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
IN
inputs
Low power consumption (15 μA)
Specified over –40°C to +125°C temperature range
6-lead SC70 package
APPLICATIONS
Desktop/notebook computers, servers
Low power portable equipment
Routers
Base stations
Line cards
Graphics cards
GENERAL DESCRIPTION
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.
Tel: 781.329.4700Fax: 781.326.8703
www.analog.com FUNCTIONAL BLOCK DIAGRAMS
V
CC
0
CAPACITOR
ADJUSTABLE
DELAY
0.6V
ADM1085/ADM1086
V
IN
ENOUT
ENIN
CEXT
GND
CAPACITOR
ADJUSTABLE
DELAY
0.6V
ADM1087/ADM1088
V
IN
ENOUT
ENIN
CEXT
V
CC
GND
Figure 1.
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.
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.
The ADM1086 and ADM1088 have push-pull output stages,
with active-high (ENOUT) and active-low (ENOUT) logic
outputs, respectively. The ADM1085 has an active-high
(ENOUT) logic output; the ADM1087 has an active-low
(ENOUT) 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
property ensures compatibility with enable input logic levels of
different regulators and converters.
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
ADM1086, and an active-low input (ENIN) for the ADM1087
and ADM1088.
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.
Table 1. Selection Table
Output Stage
Part No.
ADM1085
ADM1086
ADM1087
ADM1088
Enable Input
ENIN
ENIN
ENIN
ENIN
ENOUT
Open-Drain
Push-Pull
ENOUT
Open-Drain
Push-Pull
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| ADM1088 | Simple Sequencers in 6-Lead SC70 |
| ADM1088AKS-REEL7 | Simple Sequencers in 6-Lead SC70 |
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| ADM1087AKS-REEL7 | 功能描述:IC SIMPLE SEQUENCER OD SC70-6 RoHS:否 類別:集成電路 (IC) >> PMIC - 監(jiān)控器 系列:Simple Sequencers® 標(biāo)準(zhǔn)包裝:1 系列:- 類型:簡(jiǎn)單復(fù)位/加電復(fù)位 監(jiān)視電壓數(shù)目:1 輸出:開路漏極或開路集電極 復(fù)位:低有效 復(fù)位超時(shí):標(biāo)準(zhǔn)傳輸延遲為 60 µs 電壓 - 閥值:3V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:SC-74A，SOT-753 供應(yīng)商設(shè)備封裝:SOT-23-5 包裝:Digi-Reel® 其它名稱:LM8364BALMF30DKR |
| ADM1087AKS-U1 | 制造商:Analog Devices 功能描述:- Bulk |
| ADM1087AKSZ-REEL7 | 功能描述:IC SIMPLE SEQUENCER OD SC70-6 RoHS:是 類別:集成電路 (IC) >> PMIC - 監(jiān)控器 系列:Simple Sequencers® 標(biāo)準(zhǔn)包裝:100 系列:- 類型:簡(jiǎn)單復(fù)位/加電復(fù)位 監(jiān)視電壓數(shù)目:1 輸出:開路漏極，開路漏極 復(fù)位:高有效/低有效 復(fù)位超時(shí):最小為 250 ms 電壓 - 閥值:4.37V，4.62V 工作溫度:0°C ~ 70°C 安裝類型:表面貼裝 封裝/外殼:8-SOIC（0.154"，3.90mm 寬） 供應(yīng)商設(shè)備封裝:8-SOIC 包裝:管件 產(chǎn)品目錄頁面:1337 (CN2011-ZH PDF) |
| ADM1088 | 制造商:AD 制造商全稱:Analog Devices 功能描述:Simple Sequencers in 6-Lead SC70 |
| ADM1088AKS | 制造商:Analog Devices 功能描述: |
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