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PDF US4882 Data sheet ( Hoja de datos )
| Número de pieza | US4882 | |
| Descripción | CMOS Low Voltage High Sensitivity Latch | |
| Fabricantes | Melexis | |
| Logotipo |  |
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Features and Benefits
• Chopper stabilized amplifier stage
• Optimized for BDC motor applications
• New miniature package / thin, high
reliability package
• Operation down to 2.2V
• CMOS for optimum stability, quality,
and cost
• Low IDD current
Applications
• Solid state switch
• Brushless DC motor commutation
• Speed sensing
Ordering Information
Part No.
Temperature Suffix
US4881
E (-40°C to 85°C)
US4882
E (-40°C to 85°C)
US4882
L (-40°C to 150°C)
Package Code
SO (SOT-23) or UA (TO-92)
SO (SOT-23) or UA (TO-92)
SO (SOT-23) or UA (TO-92)
Contact factory or sales representative for legacy temperature code options
Functional Diagram
Description
The US4881/4882 are bipolar Hall effect sensor
IC’s fabricated from mixed signal CMOS
technology. Each incorporates advanced chopper
stabilization techniques to provide accurate and
stable magnetic switch points. The design
specifications and performance have been
optimized for commutation applications in
brushless DC motors and automotive speed
sensing.
The output transistor of the 4881 will be latched on
(BOP) in the presence of a sufficiently strong South
magnetic field facing the marked side of the
package. Similarly, the output will be latched off
(BRP) in the presence of a North field.
The output transistor of the 4882 will switch on
(BOP) near or after the South to North zero crossing
transition of a multipole ring magnet field facing the
marked side of the package. The output will switch
off (BRP) near or after the zero crossing transition
from South to North Field.
Note: Static sensitive device; please observe ESD precautions.
Reverse VDD protection is not included. For reverse voltage
protection, a 100Ω resistor in series with VDD is recommended.
The SOT-23 device is magnetically reversed from
the UA package. The SOT-23 output transistor will
be latched on (BOP) in the presence of a sufficiently
strong North pole magnetic field subjected to the
marked face.
3901004881
Rev. 008
Page 1
Sep/02
1 page  
3901004881
Rev. 008
Page 5
Sep/02
5 Page 
Disclaimer
Devices sold by Melexis are covered by the warranty and patent indemnification provisions appear-
ing in its Term of Sale. Melexis makes no warranty, express, statutory, implied, or by description re-
garding the information set forth herein or regarding the freedom of the described devices from pat-
ent infringement. Melexis reserves the right to change specifications and prices at any time and with-
out notice. Therefore, prior to designing this product into a system, it is necessary to check with
Melexis for current information. This product is intended for use in normal commercial applications.
Applications requiring extended temperature range, unusual environmental requirements, or high
reliability applications, such as military, medical life-support or life-sustaining equipment are specifi-
cally not recommended without additional processing by Melexis for each application.
The information furnished by Melexis is believed to be correct and accurate. However, Melexis shall
not be liable to recipient or any third party for any damages, including but not limited to personal in-
jury, property damage, loss of profits, loss of use, interrupt of business or indirect, special incidental
or consequential damages, of any kind, in connection with or arising out of the furnishing, perform-
ance or use of the technical data herein. No obligation or liability to recipient or any third party shall
arise or flow out of Melexis’ rendering of technical or other services.
© 2002 Melexis NV. All rights reserved.
3901004881
Rev. 008
For the latest version of this document, go to our website at:
www.melexis.com
Or for additional information contact Melexis Direct:
Europe and Japan:
Phone: +32 13 67 04 95
E-mail: [email protected]
All other locations:
Phone: +1 603 223 2362
E-mail: [email protected]
Page 11
QS9000, VDA6.1 and ISO14001 Certified
Sep/02
11 Page | ||
| Páginas | Total 11 Páginas | |
| PDF Descargar | [ Datasheet US4882.PDF ] | |
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