Magnetic field
sensor with
internal magnet
ZMY20M
package : SOT223S (4-Pin)
1: +V
O
2: -V
O
3: +V
B
4: -V
B
V
O
- output voltage V
B
- supply voltage
FEATURES
•
ZMY20M (SOT-223-S) is an extremely sensitive magnetic sensor with internal magnet
•
•
•
•
•
employing the magneto-resistive effect of thin film permalloy
Package : SOT-223-S
The ZMY20M is available on 12 mm tape - 7" reel 1.000 components/reel or 13" reel
4.000 components/reel
Disturbing fields up to 30 kA/m are allowed
Internal magnet for creating of the auxiliary field H
X
Magnetic fields vertical to the chip level are not effective
ABSOLUTE MAXIMUM RATINGS
Parameter
Supply voltage ZMY20M
Total power dissipation
Operating temperature range
Storage temperature range
Symbol
V
B
P
tot
T
amb
T
stg
12
120
-25 to +125
-25 to +125
Unit
V
mW
°C
°C
Page 9
ZMY20M
ELECTRICAL CHARACTERISTICS
(at T
amb
= 25 °C unless otherwise stated)
Parameter
Bridge resistance
Output voltage range
Auxiliary field
Disturbing field
Open circuit sensitivity
Symbol
R
br
V
O
/V
B
H
X
H
d
S
Min.
1.2
12
-
-
3.0
Typ.
1.7
18
1.5
-
5.5
Max.
2.2
22
-
30
7.0
Unit
kΩ
mV/V
kA/m
kA/m
(mV/V)/(kA/m) no disturbing
field H
d
allowed
V
B
= const.
µV/V
mV/V
MHz
(µV/V)/K
%/K
%/K
T
amb
=
-25...+125°C
T
amb
=
-25...+125°C
T
amb
=
-25...+125°C
Tamb =
-25...+125°C
H
y
≤
2 kA/m
Test conditions
Hysteresis of output voltage
Offset voltage
Operating frequency
Temperature coefficient of
offset voltage
Temperature coefficient of
bridge resistance
Temperature coefficient of
open circuit sensitivity
V
B
= 5 V
Temperature coefficient of
open circuit sensitivity
I
B
= 3 mA
V
OH
/V
B
V
off
/V
B
f
max
TCV
off
TCR
br
TCS
V
-
-1.5
0
-3
-
-
-
-
-
-
0.3
-0.25
50
+1.5
1
+3
-
-
TCS
I
-
0.05
-
%/K
Devices are identified by type on the body of the device
ZMY20M..... ZMY20M
Ordering information :
ZMY20MTA ..... 7" reel 1,000 components per reel
ZMY20MTC ..... 13" reel 4,000 components per reel
Page 10
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