PHILIPS KMZ10A

DISCRETE SEMICONDUCTORS
DATA SHEET
handbook, halfpage
M3D329
KMZ10A
Magnetic field sensor
Product specification
Supersedes data of 1996 Nov 08
File under Discrete Semiconductors, SC17
1998 Mar 24
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.
Hy
handbook, halfpage
Hx
PINNING
PIN
SYMBOL
1
+VO
output voltage
2
GND
ground
3
−VO
output voltage
4
VCC
supply voltage
1 2 3 4
DESCRIPTION
MBA737
Fig.1 Simplified outline.
QUICK REFERENCE DATA
SYMBOL
PARAMETER
MIN.
TYP.
MAX.
UNIT
VCC
bridge supply voltage
−
5
−
V
Tbridge
bridge operating temperature
−40
−
+150
°C
Hy
magnetic field strength
−0.5
−
+0.5
kA/m
Hx
auxiliary field
−
0.5
−
kA/m
S
sensitivity
−
16
−
mV ⁄ V
----------------kA ⁄ m
Rbridge
bridge resistance
0.8
−
1.6
kΩ
Voffset
offset voltage
−1.5
−
+1.5
mV/V
CIRCUIT DIAGRAM
MLC716
handbook, full pagewidth
1
2
3
+VO
GND
–VO
4
V
CC
Fig.2 Simplified circuit diagram.
1998 Mar 24
2
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
VCC
bridge supply voltage
−
9
V
Ptot
total power dissipation
up to Tamb = 134 °C
−
90
mW
Tstg
storage temperature
note 1
−65
+150
°C
Tbridge
bridge operating temperature
−40
+150
°C
Note
1. Maximum operating temperature of the thin-film permalloy.
MLC715
150
handbook, halfpage
P tot
(mW)
100
50
0
0
50
100
Tamb (o C)
150
Fig.3 Power derating curve.
1998 Mar 24
3
Philips Semiconductors
Product specification
Magnetic field sensor
KMZ10A
THERMAL CHARACTERISTICS
SYMBOL
Rth j-a
PARAMETER
VALUE
UNIT
180
K/W
thermal resistance from junction to ambient
CHARACTERISTICS
Tamb = 25 °C; Hx = 0.5 kA/m; notes 1 and 2; VCC = 5 V unless otherwise specified.
SYMBOL
PARAMETER
CONDITIONS
MIN.
TYP.
MAX.
UNIT
Hy
magnetic field strength
note 2
−0.5
−
+0.5
kA/m
S
sensitivity
notes 2 and 3
13
−
19
mV ⁄ V
----------------kA ⁄ m
TCVO
temperature coefficient of
output voltage
VCC = 5 V;
Tamb = −25 to +125 °C
−
−0.4
−
%/K
ICC = 3 mA;
Tamb = −25 to +125 °C
−
−0.15
−
%/K
0.8
−
1.6
kΩ
−
0.25
−
%/K
−1.5
−
+1.5
mV/V
Rbridge
bridge resistance
TCRbridge
temperature coefficient of
bridge resistance
Voffset
offset voltage
TCVoffset
offset voltage drift
Tbridge = −25 to +125 °C
−6
−
+6
µV ⁄ V
--------------K
FL
linearity deviation of output
voltage
Hy = 0 to ±0.25 kA/m
−
−
0.8
%⋅FS
Hy = 0 to ±0.4 kA/m
−
−
2.5
%⋅FS
Hy = 0 to ±0.5 kA/m
Tbridge = −25 to +125 °C
−
−
4.0
%⋅FS
FH
hysteresis of output voltage
−
−
0.5
%⋅FS
f
operating frequency
0
−
1
MHz
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 Hx = 3 kA/m.
2. No disturbing field (Hd) allowed; for stable operation under disturbing conditions see Fig.4 (SOAR) and see Fig.5 for
decrease of sensitivity.
3.
( V O at H y = 0.4 kA ⁄ m ) – ( V O at H y = 0 )
S = ---------------------------------------------------------------------------------------------------------------.
0.4 × V CC
1998 Mar 24
4
Philips Semiconductors
Product specification
Magnetic field sensor
,,,,,
,,,,,
,,,,,
,,,,,
,,,,,
,,,,,
,,,,,
KMZ10A
MLC119
12
Hd
(kA/m)
Hy
Hx
MLC120
1.2
handbook, halfpage
handbook, halfpage
S(H )
x
S(0.5 kA/m)
II
8
0.8
Hd
SOAR
4
0.4
I
II
0
0
1
2
3
H x (kA/m)
0
4
0
1
2
3
4
5
H x (kA/m)
In applications with Hx < 3 kA/m, the sensor has to be reset, after
leaving the SOAR, by an auxiliary field of Hx = 3 kA/m.
I = Region of permissible operation.
II = Permissible extension if Hy < 0.15 A/m.
In applications with Hx ≤ 3 kA/m, the sensor has to be
reset by an auxiliary field of Hx = 3 kA/m before using.
Fig.4
Fig.5
Safe Operating Area (permissible disturbing
field Hd as a component of auxiliary field Hx).
MLC121
12
handbook, halfpage
VO
(mV/V)
max
typ
min
8
4
0
4
8
12
0.5
0
H y (kA/m)
0.5
Hx = 0.5 kA/m; Tamb = 25 °C; Voffset = 0.
Fig.6 Sensor output characteristics.
1998 Mar 24
5
Relative sensitivity (ratio of sensitivity at
certain Hx and sensitivity at Hx = 0.5 kA/m).
Philips Semiconductors
Product specification
Magnetic field sensor
KMZ10A
PACKAGE OUTLINE
Plastic single-ended flat package; 4 in-line leads
SOT195
E
Q
b1
A
chip
D
L1
L
1
2
3
4
e1
bp
c
e
0
1
4 mm
scale
DIMENSIONS (mm are the original dimensions)
UNIT
A
bp
b1
c
D
E
e
e1
L
L1(1)
max.
Q
mm
1.8
1.6
0.48
0.40
0.7
0.5
0.45
0.39
5.2
5.0
4.8
4.4
3.75
1.25
14.5
12.7
2
0.8
0.7
Notes
1. Terminal dimensions within this zone are uncontrolled to allow for flow of plastic and terminal irregularities.
OUTLINE
VERSION
REFERENCES
IEC
JEDEC
EIAJ
SOT195
1998 Mar 24
EUROPEAN
PROJECTION
ISSUE DATE
97-06-02
6
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
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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: 1998 Mar 24
Document order number:
9397 750 03584