ZMY20

Manufacturer Part NumberZMY20
DescriptionZmy20 - Magnetic Field Sensor
ManufacturerZetex Semiconductors plc.
ZMY20 datasheet
 


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MAGNETIC FIELD SENSOR
DESCRIPTION
The ZMY20 is an extremely sensitive magnetic sensor employing the
magneto-resistive effect of thin film permalloy. It allows the measurement of
magnetic fields or the detection of magnetic parts. The highly sensitive and
small size magnetoresistive sensors consist of a chip covered with thin film
permalloy stripes. These stripes form a Wheatstone bridge, whose output
voltage is proportional to the magnetic field component Hy. A perpendicular
field Hx is necessary to stabilize sensor operation. This can be done by using a
small permanent magnet.
FEATURES
• Output voltage proportional to magnetic field Hy
• Adjustment of sensitivity and suppression of
hysteresis by the auxiliary magnetic field Hx
• Magnetic fields vertical to the chip level are not
effective
APPLICATIONS
• Linear position sensors for process control, door
interlocks, proximity detectors, machine tool
sensing
• Scalar measurement for compassing
• Automotive – door switches, engine position &
speed sensing
• Metering of fluids by sensing rotation of impeller
• Traffic counting & vehicle-type sensing
ORDERING INFORMATION
DEVICE
REEL
TAPE
SIZE
WIDTH
ZMY20TA
7”
12mm
ZMY20TC
13”
12mm
• Measurement of current in a conductor without
connection
DEVICE MARKING
ZMY20
ISSUE 3 - JUNE 2007
QUANTITY
PER REEL
1000 units
4000 units
1
ZMY20
Hy
Hx
-V
B
+V
B
-V
O
+V
O
SOT223S
PINOUT
-V
B
+V
-V
+V
O
O
B
V = SUPPLY VOLTAGE
B
V = OUTPUT VOLTAGE
O
Top View
S E M I C O N D U C T O R S

ZMY20 Summary of contents

  • Page 1

    ... MAGNETIC FIELD SENSOR DESCRIPTION The ZMY20 is an extremely sensitive magnetic sensor employing the magneto-resistive effect of thin film permalloy. It allows the measurement of magnetic fields or the detection of magnetic parts. The highly sensitive and small size magnetoresistive sensors consist of a chip covered with thin film permalloy stripes ...

  • Page 2

    ... ZMY20 ABSOLUTE MAXIMUM RATINGS. PARAMETER Supply Voltage Total power dissipation Operating Temperature Range Storage Temperature Range ELECTRICAL CHARACTERISTICS.(at T PARAMETER SYMBOL Bridge resistance R br Output voltage range Open circuit sensitivity S Hysteresis of output voltage Offset Voltage V /V off Operating Frequency ...

  • Page 3

    ... Application 1 (digital output) Application 2 (analog output) ISSUE 3 - JUNE 2007 ZMY20 ...

  • Page 4

    ... ZMY20 Sensor output characteristic V =f -parameter =const; T =25°C b amb Safe operating area =25°C; (H =disturbing field) xtot x d amb d The sensor has to be reset after leaving the safe operating area by an auxiliary field ...

  • Page 5

    ... Sensor sensitivity characteristic S=f =const; T =25°C b amb Supply voltage (maximum) derating curve V =f(T ) Bmax amb 2 Device mounted board (copper area 600mm ISSUE 3 - JUNE 2007 ZMY20 ...

  • Page 6

    ... ZMY20 PACKAGE OUTLINE CONTROLLING DIMENSIONS IN MILLIMETRES APPROX CONVERSIONS INCHES. ISSUE 3 - JUNE 2007 6 ...

  • Page 7

    ... However, changes to specifications may occur, at any time and without notice. ISSUE 3 - JUNE 2007 ZMY20 ...

  • Page 8

    ... ZMY20 © Zetex Semiconductors plc 2007 Europe Americas Zetex GmbH Zetex Inc Kustermann-Park 700 Veterans Memorial Hwy Balanstraße 59 Hauppauge, NY 11788 D-81541 München USA Germany Telefon: (49 Telephone: (1) 631 360 2222 Fax: (49 Fax: (1) 631 360 8222 europe ...