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Part Number KMA200

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DATA SHEET
Objective specification
Supersedes data of 2001 Jun 20
2002 Mar 25
DISCRETE SEMICONDUCTORS
KMA200
Programmable angle sensor
M3D713
2002 Mar 25
2
Philips Semiconductors
Objective specification
Programmable angle sensor
KMA200
FEATURES
·
Magnetic field angular sensing
·
Resolution 0.1
°
·
Accuracy better than 0.6
°
·
Maximum angular range 0
°
to 180
°
·
Programmable angle range
·
Temperature range from
-
40 to +125
°
C
·
User programmable EEPROM
·
Ratiometric analog output
·
13-bit digital output
·
Bi-directional digital Serial Peripheral Interface (SPI)
·
Adjustable zero point offset
·
On-line diagnosis for all main functional blocks
·
Switch-off function at persistent overvoltage
·
Temperature supervision
·
Pre-calibrated delivery.
DESCRIPTION
The KMA200 is a programmable angle sensor, employing
the magnetoresistive effect of thin-film permalloy for
sensing the angle between an external magnetic field in
the sensor plane and the sensor. The sensor consists of
two galvanic separated wheatstone bridges and an
integrated circuit.
The KMA200 is user programmable. This allows user
specific adjustment of the angular range and zero point,
and the storage of a 32-bit identifier. The data is held
permanently in an EEPROM.
The device can be programmed to work either in analog or
digital (SPI) output. One of four different analog output
characteristics may be selected. The implemented on-line
diagnosis monitors the input and output signals as well as
the data processing. Deviations and failures of the angle
value are indicated in the output signal. An overall
temperature supervision is implemented.
PINNING
PIN
SYMBOL
DESCRIPTION
1
V
DD
supply voltage
2
DATA/V
OUT1
data I/O, analog output
3
CLK/V
OUT2
data clock, analog output
4
GND
ground
5
CS
chip select, data transfer I/O
1 2 3 4 5
MLD415
Fig.1 Simplified outline (SOT637).
2002 Mar 25
3
Philips Semiconductors
Objective specification
Programmable angle sensor
KMA200
QUICK REFERENCE DATA
Notes
1. In (homogenous) magnetic field at saturation field strength.
2. With optimized application circuit.
LIMITING VALUES
In accordance with the Absolute Maximum Rating System (IEC 60134).
Note
1. Up to a maximum of 32 V for t < 400 ms.
SYMBOL
PARAMETER
MIN.
TYP.
MAX.
UNIT
V
DD
operating voltage
4.5
5
5.5
V
I
DD
supply current
-
10
-
mA
RES
resolution
-
0.1
-
deg
A
80
accuracy in temperature range
-
40 to +80
°
C;
note 1
-
-
0.6
deg
A
125
accuracy in temperature range
-
40 to +125
°
C;
note 1
-
-
1.3
deg
T
amb
ambient temperature
-
40
-
+125
°
C
f
oper
operating frequency of the SPI; note 2
-
-
1
MHz
SYMBOL
PARAMETER
MIN.
MAX.
UNIT
V
DD
operating voltage; note 1
-
16.5
+26.5
V
V
pin
voltage at all external pins; note 1
-
16.5
+26.5
V
T
stg
storage temperature
-
40
+150
°
C
T
amb
ambient operating temperature
-
40
+125
°
C
NVR
EEPROM, non volatile retention
17
-
years
NVE
EEPROM, non volatile endurance
10
4
-
cycles
2002 Mar 25
4
Philips Semiconductors
Objective specification
Programmable angle sensor
KMA200
CHARACTERISTICS
T
amb
= 25
°
C; H
rotation
= 30 kA/m; central sensor positioning in homogenous field; V
DD
= 5 V; unless otherwise
specified.
SYMBOL
PARAMETER
MIN.
TYP.
MAX.
UNIT
General
V
DD
operating voltage
4.5
5
5.5
V
I
DD
supply current
-
10
-
mA
RES
resolution
-
0.1
-
deg
I
O
constant output current
-
-
2
mA
I
I(Z)
input current when output driver is in high-impedance state
-
-
10
µ
A
C
L
capacitance load at outputs
0.1
-
100
nF
R
L
output pull-up or pull-down load; note 1
5
-
6
k
V
sw(on)
on threshold; device switch on if V
DD
> V
sw(on)
3.1
3.75
4.4
V
V
sw(off)
off threshold; device switch on if V
DD
> V
sw(off)
2.9
-
4.2
V
V
sw(hys)
hysteresis
-
0.2
-
V
f
CLK
internal clock frequency
3.3
4.096
4.9
MHz
f
CLK
frequency shift over temperature and ageing
-
10
-
+10
%f
CLK
T
sens
temperature range of internal sensor
-
50
-
+180
°
C
RES
temp
resolution of internal sensor
-
0.8
-
°
C/cnt
T
sens
accuracy of internal sensor
-
5
-
+5
°
C
t
on
Power-on time; until first valid result
-
-
10
ms
f
upd
measurement update rate at nominal oscillator frequency
-
4
-
kHz
t
delay
dead time of step response
-
-
0.5
ms
t
s
settling time after ideal input angle step; time until analog
standard output reaches 90% of final value at nominal
oscillator frequency; C
L
= 5 nF
-
1
-
ms
t
(g)
group delay at nominal oscillator frequency; C
L
= 5 nF
-
0.65
-
ms
Rep
reproducibility of output signals
-
-
0.15
deg
Analog output V
out1
; standard output
A
80
accuracy in temperature range
-
40 to 80
°
C; note 2
-
-
0.6
deg
A
125
accuracy in temperature range
-
40 to 125
°
C; note 2
-
-
1.3
deg
V
out1(nom)
nominal output voltage range
5
-
95
%V
DD
CL
lo
programmable clamping level low
5
-
30.5
%V
DD
CL
hi
programmable clamping level high
69.5
-
95
%V
DD
LDR
lower diagnostic range
0
-
4
%V
DD
UDR
upper diagnostic range
96
-
100
%V
DD
RES
resolution; 4608 counts in nominal output voltage range
-
0.02
-
%V
DD
DNL
differential non linearity; guaranteed monotonic
-
-
1
LSB
INL
integral non linearity; normal operation mode
-
0.15
±
0.12
+0.15
%V
DD
V
n(o)
output referred noise; peak-to-peak; 2.5 ms or
10 measurements in sequence; note 3
-
-
0.02
%V
DD
2002 Mar 25
5
Philips Semiconductors
Objective specification
Programmable angle sensor
KMA200
Analog output V
out2
; mode 1
A
80
accuracy in temperature range
-
40 to 80
°
C; note 2
-
-
0.6
deg
A
125
accuracy in temperature range
-
40 to 125
°
C; note 2
-
-
1.3
deg
V
out2(nom)
nominal output voltage range
95
-
5
%V
DD
CL
lo
programmable clamping level low
5
-
30.5
%V
DD
CL
hi
programmable clamping level high
69.5
-
95
%V
DD
LDR
lower diagnostic range
0
-
4
%V
DD
UDR
upper diagnostic range
96
-
100
%V
DD
RES
resolution; 4608 counts in nominal output voltage range
-
0.02
-
%V
DD
DNL
differential non linearity; guaranteed monotonic
-
-
1
LSB
INL
integral non linearity; normal operation mode
-
0.15
±
0.12
+0.15
%V
DD
V
n(o)
output referred noise; peak-to-peak; 2.5 ms or
10 measurements in sequence; note 3
-
-
0.02
%V
DD
Analog output V
out2
; mode 2
A
80
accuracy in temperature range
-
40 to 80
°
C; note 2
-
-
0.6
deg
A
125
accuracy in temperature range
-
40 to 125
°
C; note 2
-
-
1.3
deg
V
out2(nom)
nominal output voltage range
2.5
-
47.5
%V
DD
CL
lo
programmable clamping level low
2.5
-
15.25
%V
DD
CL
hi
programmable clamping level high
34.75
-
47.5
%V
DD
LDR
lower diagnostic range
0
-
2
%V
DD
UDR
upper diagnostic range
50
-
100
%V
DD
RES
resolution; 2304 counts in nominal output voltage range
-
0.02
-
%V
DD
DNL
differential non linearity; guaranteed monotonic
-
-
1
LSB
INL
integral non linearity; normal operation mode
-
0.15
±
0.12
+0.15
%V
DD
V
n(o)
output referred noise; peak-to-peak; 2.5 ms or
10 measurements in sequence; note 3
-
-
0.02
%V
DD
Analog output V
out2
; mode 3
V
out2(low)
output low voltage range; I
sink
< 2 mA
0
-
10
%V
DD
V
out2(high)
output high voltage range; I
source
< 2 mA
90
-
100
%V
DD
A
th
accuracy of threshold; normal operation mode
-
0.1
-
+0.1
deg
SYMBOL
PARAMETER
MIN.
TYP.
MAX.
UNIT