ADM1185ARMZ 데이터 시트보기 (PDF) - Analog Devices
부품명
상세내역
제조사
ADM1185ARMZ Datasheet PDF : 12 Pages
| |||
Preliminary Technical Data
Quad Voltage Monitor and Sequencer
ADM1185
FEATURES
Powered from 2.7V to 5.5V on the VCC pin
Monitors Four Supplies via 0.8% Accurate Comparators
Four inputs can be programmed for voltage levels with
resistor dividers
Three Open-Drain Enable Outputs
Open-Drain Power Good Output
10-pin MSOP Package
APPLICATIONS
Monitor and Alarm Functions
Power Supply Sequencing
Telecommunication and Datacommunication Equipment
PC/Servers
GENERAL DESCRIPTION
The ADM1185 is an integrated four channel voltage monitoring
device. A 2.7V to 5.5V power supply is required on the VCC pin
to power the device.
FUNCTIONAL BLOCK DIAGRAM
VCC
ADM1185
POWER AND
REFERENCE
GENERATOR
REF=0.6V
VIN1
REF=0.6V
OUT1
VIN2
VIN3
REF=0.6V
REF=0.6V
LOGIC
OUT2
OUT3
VIN4
REF=0.6V
PWRGD
Four precision comparators monitor four voltage rails. All
comparators have a 0.6V reference with a worst-case accuracy
of 0.8%. Resistor networks external to the VIN1-VIN4 pins set
the trip points.
GND
Figure 1.
There are four open-drain outputs on the device. A digital core
interprets the comparator outputs and asserts the outputs as
appropriate.
APPLICATIONS DIAGRAM
3.3V IN
2.5V OUT
1.8V OUT
1.2V OUT
VCC
VIN1
OUT1
VIN2
OUT2
VIN3
OUT3
VIN4
ADM1185
GND
PWRGD
IN
Regulator1
EN
OUT
IN
Regulator2
EN
OUT
2.5V OUT
1.8V OUT
IN
Regulator3
EN OUT 1.2V OUT
POWER
GOOD
Figure 2.
Rev. PrK June 2006
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
www.analog.com
Fax: 781.461.3113
© 2006 Analog Devices, Inc. All rights reserved.
Share Link: 