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PDF ADM8641 Data sheet ( Hoja de datos )
| Número de pieza | ADM8641 | |
| Descripción | Ultralow Power Voltage Detector | |
| Fabricantes | Analog Devices | |
| Logotipo |  |
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Data Sheet
FEATURES
Ultralow power consumption with ICC = 92 nA (typical)
Precision, low voltage monitoring
Pretrimmed voltage monitoring threshold options
10 options from 2 V to 4.63 V for the ADM8641
20 options from 0.5 V to 1.9 V for the ADM8642
±1.3% threshold accuracy over full temperature range
Output disable input
23 µs to 26 µs typical propagation delay
Open-drain type output
Power supply glitch immunity
Available in a 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
GENERAL DESCRIPTION
The ADM8641 and ADM8642 are simple voltage detectors
suitable for use in general-purpose applications. 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 factory preset detection thresholds from 0.5 V to 4.63 V
with ±1.2% accuracy over the full temperature range enable the
devices to monitor the node of interest accurately with direct
contact. The DIS input lets the user hold the output low
regardless of the state of the input.
Ultralow Power Voltage Detector
ADM8641/ADM8642
FUNCTIONAL BLOCK DIAGRAMS
VCC
ADM8641
DIS
VTH
OUT
GND
Figure 1. ADM8641 Functional Block Diagram
VCC
ADM8642
DIS
VIN
VTH
OUT
GND
Figure 2. ADM8642 Functional Block Diagram
The ADM8641 monitors the voltage using the VCC pin. The
separate supply pin on the ADM8642 allows it to have a lower
detection threshold down to 0.5 V.
The ADM8641 and ADM8642 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.
Rev. 0
Document Feedback
Information furnished by Analog Devices is believed to be accurate and reliable. However, no
responsibilityisassumedbyAnalogDevices for itsuse,nor foranyinfringementsofpatentsor 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.
Trademarksandregisteredtrademarksarethepropertyoftheirrespectiveowners.
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
1 page  
Data Sheet
ABSOLUTE MAXIMUM RATINGS
Table 2.
Parameter
VCC
OUT
VIN
DIS
Input/Output Current
Storage Temperature Range
Operating Temperature Range
Rating
−0.3 V to +6 V
−0.3 V to +6 V
−0.3 V to +6 V
−0.3 V to VCC + 0.3 V
10 mA
−40°C to +150°C
−40°C to +85°C
Stresses at or above those listed under Absolute Maximum
Ratings may cause permanent damage to the product. This is a
stress rating only; functional operation of the product at these
or any other conditions above those indicated in the operational
section of this specification is not implied. Operation beyond
the maximum operating conditions for extended periods may
affect product reliability.
ADM8641/ADM8642
THERMAL RESISTANCE
θJA is specified for a device soldered on an FR4 board with a
minimum footprint.
Table 3.
Package Type
6-Ball WLCSP
θJA
105.6
Unit
°C/W
ESD CAUTION
Rev. 0 | Page 5 of 11
5 Page 
Data Sheet
OUTLINE DIMENSIONS
1.000
0.960
0.920
BOTTOM VIEW
(BALL SIDE UP)
21
BALL A1
IDENTIFIER
1.500
1.460
1.420
1.00
REF
0.660
0.600
0.540
TOP VIEW
(BALL SIDE DOWN)
SIDE VIEW
0.50
BSC
0.390
0.360
0.330
0.50 BSC
COPLANARITY
0.04
A
B
C
SEATING
PLANE
0.360
0.320
0.280
0.270
0.240
0.210
Figure 22. 6-Ball Wafer Level Chip Scale Package [WLCSP]
(CB-6-17)
Dimensions shown in millimeters
ADM8641/ADM8642
ORDERING GUIDE
Model1, 2, 3
ADM8641T263ACBZ-R7
ADM8642T100ACBZ-R7
Temperature Range
−40°C to +85°C
−40°C to +85°C
Package Description
6-Ball Wafer Level Chip Scale Package [WLCSP]
6-Ball Wafer Level Chip Scale Package [WLCSP]
Package Option
CB-6-17
CB-6-17
Branding
DT
DU
1 Z = RoHS Compliant Part.
2 If ordering nonstandard models, complete the ordering code shown in Figure 21 by inserting the model number and threshold number. Contact Analog Devices, Inc.,
sales for availability of nonstandard models, quoting ADM864x-NTSD first, and then the complete ordering code.
3 A minimum of 10,000 must be ordered for nonstandard models.
©2015 Analog Devices, Inc. All rights reserved. Trademarks and
registered trademarks are the property of their respective owners.
D12781-0-1/15(0)
Rev. 0 | Page 11 of 11
11 Page | ||
| Páginas | Total 11 Páginas | |
| PDF Descargar | [ Datasheet ADM8641.PDF ] | |
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