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ADM8611N263ACBZ-R7 产品设计参考手册 - ADI（亚德诺）
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ADI（亚德诺）
分类:
电源监控芯片
封装:
WLCSP-6
描述:
ANALOG DEVICES ADM8611N263ACBZ-R7 芯片, 电压监控器, 5.5V, WLCSP-6
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ADM8611N263ACBZ-R7数据手册
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Ultralow Power Supervisory ICs with
Watchdog Timer and Manual Reset
Data Sheet
ADM8611/ADM8612/ADM8613/ADM8614/ADM8615
Rev. B Document Feedback
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 ©2015 Analog Devices, Inc. All rights reserved.
Technical Support www.analog.com
FEATURES
Ultralow power consumption with I
CC
= 92 nA (typical)
Continuous monitoring with no blank time
Pretrimmed voltage monitoring threshold options
10 options from 2 V to 4.63 V for the ADM8611
20 options from 0.5 V to 1.9 V for the ADM8612/ADM8615
5 options from 2.32 V to 4.63 V for the ADM8613/
ADM8614
±1.3% threshold accuracy over full temperature range
Manual reset input (ADM8611/ADM8612/ADM8613/
ADM8615)
200 ms (typical) reset timeout
Low voltage input monitoring down to 0.5 V (ADM8612/
ADM8615)
Watchdog timer (ADM8613/ADM8614/ADM8615)
Watchdog function disable input (ADM8613/ADM8614 only)
Watchdog timeout extension input (ADM8614 only)
Active low, open-drain
RESET
output
Power supply glitch immunity
Available in 1.46 mm × 0.96 mm WLCSP
Operational temperature range: −40°C to +85°C
APPLICATIONS
Portable/battery-operated equipment
Microprocessor systems
Energy metering
Energy harvesting
FUNCTIONAL BLOCK DIAGRAMS
Figure 1. ADM8612 Functional Block Diagram
Figure 2. ADM8614 Functional Block Diagram
GENERAL DESCRIPTION
The ADM8611/ADM8612/ADM8613/ADM8614/ADM8615
are voltage supervisory circuits that monitor power supply voltage
levels and code execution integrity in microprocessor-based
systems. Apart from providing power-on reset signals, an on-
chip watchdog timer can reset the microprocessor if it fails to
strobe within a preset timeout period. A reset signal can also be
asserted by an external push-button through a manual reset input.
The ultralow power consumption of these devices makes them
suitable for power efficiency sensitive systems, such as battery-
powered portable devices and energy meters.
The features of each member of the device family are shown in
Table 9. Each device subdivides into submodels with differences
in factory preset voltage monitoring threshold options. In the
range of 2 V to 4.63 V, 10 options are available for the ADM8611.
In the range of 2.32 V to 4.63 V, five options are available for
both the ADM8613 and ADM8614. A separate supply input
allows the ADM8612 and ADM8615 to monitor 20 different
low voltage levels from 0.5 V to 1.9 V.
The ADM8611, ADM8612, ADM8613, and ADM8615 can reset
on demand through the manual reset input. The watchdog
function on the ADM8613, ADM8614, and ADM8615 monitors
the heartbeat of the microprocessor through the WDI pin. The
ADM8613 and ADM8614 have a watchdog disable input, which
allows the user to disable the watchdog function, if required. The
ADM8614 also has a watchdog timeout extension input, allowing
the watchdog timeout to be extended from 1.6 sec to 100 sec.
The ADM8611/ADM8612/ADM8613/ADM8614/ADM8615
are available in a 6-ball, 1.46 mm × 0.96 mm WLCSP. These
devices are specified over the temperature range of −40°C to +85°C.
MR
V
CC
VIN
GND
V
TH
ADM8612
RESET
GENERATOR
DEBOUNCE
RESET
12782-001
GND
WDT_SELWD_DIS
W
DI
V
CC
V
TH
ADM8614
RESET
GENERATOR
RESET
WATCHDOG
DETECTOR
12782-002
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