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| 型號： | ADM1185 |
| 廠商： | Analog Devices, Inc. |
| 英文描述： | Quad Voltage Monitor and Sequencer |
| 中文描述： | 四電壓監(jiān)視和時序 |
| 文件頁數(shù)： | 1/16頁 |
| 文件大?。?/td> | 270K |
| 代理商： | ADM1185 |
Quad Voltage Monitor and Sequencer
ADM1185
FEATURES
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: 781.461.3113
2007 Analog Devices, Inc. All rights reserved.
www.analog.com
Powered from 2.7 V to 5.5 V on the VCC pin
Monitors 4 supplies via 0.8% accurate comparators
Logical core with internal timeouts provides power supply
sequencing and fault protection
4 inputs can be programmed to monitor different voltage
levels with resistor dividers
3 open-drain enable outputs
Open-drain power-good output (PWRGD)
10-lead MSOP
APPLICATIONS
Monitor and alarm functions
Power supply sequencing
Telecommunication and data communication equipment
PC/servers
FUNCTIONAL BLOCK DIAGRAM
VCC
VIN1
REF = 0.6V
OUT1
VIN2
REF = 0.6V
OUT2
VIN3
REF = 0.6V
OUT3
VIN4
REF = 0.6V
PWRGD
GND
POWER AND
REFERENCE
GENERATOR
REF = 0.6V
STATE
MACHINE
CORE
ADM1185
0
Figure 1.
GENERAL DESCRIPTION
The ADM1185 is an integrated, four-channel, voltage
monitoring and sequencing device. A 2.7 V to 5.5 V power
supply is required on the VCC pin to power the device.
Four precision comparators monitor four voltage rails.
All comparators have a 0.6 V reference with a worst-case
accuracy of 0.8%. Resistor networks that are external to the
VIN1, VIN2, VIN3, and VIN4 pins set the trip points for
the monitored supply rails.
A digital core interprets the status of the comparator outputs.
Internal time delays can be used for sequencing the startup of
subsequent power supplies enabled by the outputs. Supplies
falling out of range are also detected and, as a result, appropriate
outputs are disabled.
The ADM1185 has four open-drain outputs. In a typical
configuration, OUT1 to OUT3 are used to enable power
supplies, while PWRGD is a common power-good output
indicating the status of all monitored supplies.
The ADM1185 is available in a 10-lead mini small outline
package (MSOP).
APPLICATIONS DIAGRAM
2.5V OUT
1.8V OUT
1.2V OUT
3.3V IN
2.5V OUT
1.8V OUT
1.2V OUT
OUT1
VIN1
OUT2
VIN2
OUT3
VIN3
VIN4
GND
PWRGD
POWER
GOOD
VCC
ADM1185
GND
REGULATOR1
IN
EN
OUT
GND
REGULATOR2
IN
EN
OUT
GND
REGULATOR3
IN
EN
OUT
0
Figure 2.
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| ADM1185_07 | 制造商:AD 制造商全稱:Analog Devices 功能描述:Quad Voltage Monitor and Sequencer |
| ADM1185ARMZ | 制造商:AD 制造商全稱:Analog Devices 功能描述:Quad Voltage Monitor and Sequencer |
| ADM1185ARMZ-1 | 制造商:Analog Devices 功能描述:VOLT SUPERVISOR MONITOR 10MSOP - Rail/Tube 制造商:Analog Devices 功能描述:VOLT MONITOR QUAD + SEQ SMD 1185 |
| ADM1185ARMZ-1REEL7 | 功能描述:IC VOLT MONITOR/SEQUENCER 10MSOP RoHS:是 類別:集成電路 (IC) >> PMIC - 監(jiān)控器 系列:- 標(biāo)準(zhǔn)包裝:100 系列:- 類型:簡單復(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: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) |
| ADM1186 | 制造商:AD 制造商全稱:Analog Devices 功能描述:Quad Voltage Up and Down Sequencer and Monitor with Programmable Timing |
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