KMZ10A1 Datasheet, PDF (5/12 Pages) NXP Semiconductors – Magnetic field sensor

Philips Semiconductors
Magnetic field sensor
Product specification
KMZ10A1
12
handbook, halfpage
,,,,, Hd
(kA/m)
Hy
,,,,, ₈
Hx Hd
MGD807
II
,,,,,,,,,, ₄
,,,,,,,,,, _II
0
,,,,, 0
1
SOAR
I
2
3
4
Hx (kA/m)
I = Region of permissible operation.
II = Permissible extension if H_y < 0.05 kA/m.
In applications with H_x < 3 kA/m, the sensor has to be reset, after
leaving the SOAR, by an auxiliary field of H_x = 3 kA/m.
Fig.4 Safe Operating Area (permissible disturbing
field H_d as a component of auxiliary field H_x).
1.2
handbook, halfpage
S(H _{x )}
S(0.5 _kA/m)
0.8
MLC120
0.4
0
0
1
2
3
4
5
H _x (kA/m)
In applications with H_x ≤ 3 kA/m, the sensor has to be
reset by an auxiliary field of H_x = 3 kA/m before use.
Fig.5 Relative sensitivity (ratio of sensitivity at
certain H_x and sensitivity at H_x = 0.5 kA/m).
handboo¹k⁰, halfpage
VO
(mV/V)
6
2
0
–2
MEA558
∆ Hy
∆ VO
–6
–10
–0.5
–0.3
–0.1 0 0.1
0.3
0.5
Hy (kA/m)
H_x = 0.5 kA/m; T_amb = 25 °C; V_offset = 0; S = ∆V_O / ∆H_y.
Fig.6 Sensor output characteristics.
handb_Voo_Ok¹, ^.h²alfpage
(mV/V)
0.8
0.4
MEA557
(1)
0
(2)
–0.4
–0.8
–1.2
–50
–30
–10 0 10
30
50
Hy (A/m)
(1) Sensor reset with H_x = 3 kA/m.
(2) Sensor reset with H_x = −3 kA/m.
Fig.7 Output characteristic with H_x = 0
(switched H_x).
1998 Apr 06
5