Page 1
DISCRETE SEMICONDUCTORS
DATA SH EET
handbook, halfpage
M3D329
KMZ10A
Magnetic field sensor
Product specification
Supersedes data of 1996 Nov 08
File under Discrete Semiconductors, SC17
1998 Mar 24
Page 2
Philips Semiconductors Product specification
Magnetic field sensor KMZ10A
DESCRIPTION
The KMZ10A is an extremely sensitive magnetic field
sensor, employing the magnetoresistive effect of thin-film
permalloy. Its properties enable this sensor to be used in a
wide range of applications for navigation, current and field
measurement, revolution counters, angular or linear
position measurement and proximity detectors, etc.
PINNING
PIN SYMBOL DESCRIPTION
1+V
O
output voltage
2 GND ground
3 −V
4V
O
CC
output voltage
supply voltage
handbook, halfpage
H
y
H
x
1234
Fig.1 Simplified outline.
MBA737
QUICK REFERENCE DATA
SYMBOL PARAMETER MIN. TYP. MAX. UNIT
V
T
H
H
CC
bridge
y
x
bridge supply voltage − 5 − V
bridge operating temperature −40 − +150 °C
magnetic field strength −0.5 − +0.5 kA/m
auxiliary field − 0.5 − kA/m
S sensitivity − 16 −
R
V
bridge
offset
bridge resistance 0.8 − 1.6 kΩ
offset voltage −1.5 − +1.5 mV/V
CIRCUIT DIAGRAM
handbook, full pagewidth
MLC716
mV V⁄
----------------kA m⁄
1
+V
O
GND
Fig.2 Simplified circuit diagram.
1998 Mar 24 2
–V
432
V
O
CC
Page 3
Philips Semiconductors Product specification
Magnetic field sensor KMZ10A
LIMITING VALUES
In accordance with the Absolute Maximum Rating System (IEC 134).
SYMBOL PARAMETER CONDITIONS MIN. MAX. UNIT
V
CC
P
tot
T
stg
T
bridge
Note
1. Maximum operating temperature of the thin-film permalloy.
bridge supply voltage − 9V
total power dissipation up to T
= 134 °C − 90 mW
amb
storage temperature note 1 −65 +150 °C
bridge operating temperature −40 +150 °C
150
handbook, halfpage
P
tot
(mW)
100
50
0
0
50 100 150
T ( C)
amb
Fig.3 Power derating curve.
MLC715
o
1998 Mar 24 3
Page 4
Philips Semiconductors Product specification
Magnetic field sensor KMZ10A
THERMAL CHARACTERISTICS
SYMBOL PARAMETER VALUE UNIT
R
th j-a
CHARACTERISTICS
=25°C; Hx= 0.5 kA/m; notes 1 and 2; VCC= 5 V unless otherwise specified.
T
amb
SYMBOL PARAMETER CONDITIONS MIN. TYP. MAX. UNIT
H
y
S sensitivity notes 2 and 3 13 − 19
TCV
O
R
bridge
TCR
bridge
V
offset
TCV
offset
FL linearity deviation of output
FH hysteresis of output voltage −−0.5 %⋅FS
f operating frequency 0 − 1 MHz
thermal resistance from junction to ambient 180 K/W
magnetic field strength note 2 −0.5 −+0.5 kA/m
mV V⁄
----------------kA m⁄
temperature coefficient of
output voltage
VCC=5V;
T
= −25 to +125 °C
amb
I
= 3 mA;
CC
T
= −25 to +125 °C
amb
−−0.4 − %/K
−−0.15 − %/K
bridge resistance 0.8 − 1.6 kΩ
temperature coefficient of
T
= −25 to +125 °C − 0.25 − %/K
bridge
bridge resistance
offset voltage −1.5 − +1.5 mV/V
offset voltage drift T
voltage
= −25 to +125 °C −6 −+6
bridge
H
=0to±0.25 kA/m −−0.8 %⋅FS
y
H
=0to±0.4 kA/m −−2.5 %⋅FS
y
=0to±0.5 kA/m −−4.0 %⋅FS
H
y
µ VV⁄
---------------
K
Notes
1. Before first operation or after operation outside the SOAR (Fig.4) the sensor has to be reset by application of an
auxiliary field H
2. No disturbing field (H
= 3 kA/m.
x
) allowed; for stable operation under disturbing conditions see Fig.4 (SOAR) and see Fig.5 for
d
decrease of sensitivity.
at Hy0.4 kA m⁄=()V
V
O
=
3. .
S
----------------------------------------------------------------------------------------------------------------
0.4 V
×
CC
at Hy0=()–
O
1998 Mar 24 4
Page 5
Philips Semiconductors Product specification
Magnetic field sensor KMZ10A
3
H (kA/m)
x
= 3kA/m.
MLC119
12
handbook, halfpage
H
d
(kA/m)
8
4
II
0
012 4
In applications with Hx< 3kA/m, the sensor has to be reset, after
leaving the SOAR, by an auxiliary field of H
I =Region of permissible operation.
II =Permissible extension if Hy< 0.15A/m.
H
y
H
x
H
d
II
SOAR
I
x
Fig.4 Safe Operating Area (permissible disturbing
field Hd as a component of auxiliary field Hx).
handbook, halfpage
1.2
S
(H )
x
S
(0.5 kA/m)
0.8
0.4
0
05
In applications with Hx≤ 3kA/m, the sensor has to be
reset by an auxiliary field of H
1234
= 3kA/m before using.
x
H (kA/m)
x
Fig.5 Relative sensitivity (ratio of sensitivity at
certain Hx and sensitivity at Hx= 0.5 kA/m).
MLC120
12
handbook, halfpage
V
O
(mV/V)
8
4
0
4
8
12
0.5 0.5
Hx= 0.5kA/m; T
amb
=25°C; V
offset
max
typ
min
0
H (kA/m)
=0.
MLC121
y
Fig.6 Sensor output characteristics.
1998 Mar 24 5
Page 6
Philips Semiconductors Product specification
Magnetic field sensor KMZ10A
PACKAGE OUTLINE
Plastic single-ended flat package; 4 in-line leads SOT195
E
Q
b
1
A
D
L
chip
L
1
1234
e
1
e
DIMENSIONS (mm are the original dimensions)
UNIT b
Notes
1. Terminal dimensions within this zone are uncontrolled to allow for flow of plastic and terminal irregularities.
AD
p
0.48
1.8
mm
OUTLINE
VERSION
SOT195 97-06-02
1.6
0.40
c
b
1
0.7
0.45
0.5
0.39
IEC JEDEC EIAJ
5.2
5.0
E
4.8
4.4
REFERENCES
b
p
0 1 4 mm
scale
e
e
3.75
1.25
L
1
14.5
12.7
L
1
max.
2
c
(1)
Q
0.8
0.7
EUROPEAN
PROJECTION
ISSUE DATE
1998 Mar 24 6
Page 7
Philips Semiconductors Product specification
Magnetic field sensor KMZ10A
DEFINITIONS
Data Sheet Status
Objective specification This data sheet contains target or goal specifications for product development.
Preliminary specification This data sheet contains preliminary data; supplementary data may be published later.
Product specification This data sheet contains final product specifications.
Limiting values
Limiting values given are in accordance with the Absolute Maximum Rating System (IEC 134). Stress above one or
more of the limiting values may cause permanent damage to the device. These are stress ratings only and operation
of the device at these or at any other conditions above those given in the Characteristics sections of the specification
is not implied. Exposure to limiting values for extended periods may affect device reliability.
Application information
Where application information is given, it is advisory and does not form part of the specification.
LIFE SUPPORT APPLICATIONS
These products are not designed for use in life support appliances, devices, or systems where malfunction of these
products can reasonably be expected to result in personal injury. Philips customers using or selling these products for
use in such applications do so at their own risk and agree to fully indemnify Philips for any damages resulting from such
improper use or sale.
1998 Mar 24 7
Page 8
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© Philips Electronics N.V. 1998 SCA57
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Printed in The Netherlands 115106/00/03/pp8 Date of release: 1998Mar 24 Document order number: 9397 750 03584
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