|
|
PDF MLX90288 Data sheet ( Hoja de datos )
| Número de pieza | MLX90288 | |
| Descripción | SMD Programmable Linear Hall Sensor IC | |
| Fabricantes | Melexis | |
| Logotipo |  |
|
Hay una vista previa y un enlace de descarga de MLX90288 (archivo pdf) en la parte inferior de esta página. Total 19 Páginas | ||
|
No Preview Available !
MLX90288
SMD Programmable Linear Hall Sensor IC
Featuring Analog Ratiometric Output
Features and Benefits
Application Examples
Surface mounted device
Analog ratiometric output
Measurement range from 6mT to 650mT
bipolar full scale
Digital IIR filtering for accurate bandwidth
Offset trimming possible outside output range
1st and 2nd order magnet TC compensation
Reverse polarity and overvoltage protection
Extensive diagnostic features
Rotary position sensor
Linear position sensor
Proximity sensor
Ordering Code
Product Code
MLX90288
MLX90288
MLX90288
MLX90288
Temperature Code
L
L
K
K
Package Code
DC
DC
DC
DC
Option Code
CAA-000
CAA-000
CAA-000
CAA-000
Packing Form Code
TU
RE
TU
RE
Legend:
Temperature Code:
Package Code:
Option Code:
Packing Form:
L for Temperature Range -40°C to 150°C
K for Temperature Range -40°C to 125°C
DC for SOIC150Mil
AAA-xxx: Die version
xxx-000: Standard version
RE for Reel, TU for Tube
Ordering example:
MLX90288LDC-CAA-000-TU
-
1 Functional Diagram
3901090288
Rev 002
Figure 1: Block diagram of the MLX90288
Page 1 of 19
May/12
1 page  
MLX90288
SMD Programmable Linear Hall Sensor IC
Featuring Analog Ratiometric Output
5.3 Timing Specification
Operating parameter valid for TA = – 40°C to + 150°C & VDD = + 4.5V to + 5.5V (unless specified otherwise).
Item
Power Supply Slew Rate
Startup time(1)
Main Oscillator Frequency
Conversion Rate
Programmable Filtering(2)
Output Amplifier Rise Time
(10%-90%)(3)
Output Amplifier Fall Time
(90%-10%)(3)
Calibration Time(4)
Symbol
VDDSR
tSTARTUP
FOSC
tCONV
fCONV
BW
tRISEPP
tFALLPP
tCALIB
Remark
External supply VDD
Tolerance ± 10%
Acquisition of Hall and
Temperature signals
(no digital filtering)
Tempsensor enabled
RL = 8 kΩ to Ground
CL = 330 nF to Ground
RL = 330 kΩ to Ground
CL = 330 nF to Ground
EE Full Erase + Write
EE Full Read
RAM Write
Min
5e-6
200
900
130
6.33
0.004
Typ
500
1000
144
7
300
200
180
Max
5
800
1100
158
7.7
1.114
6
3
Unit
V/µs
µs
kHz
µs
kHz
kHz
µs
µs
ms
ms
ms
Table 3: Timing Specification
(1) Startup time is defined as the time between crossing the POR level and having the first DAC output
update. It includes loading of the parameters from EEPROM, checking the CRC validity, initializations
and the signal latency between the first Hall plate acquisition and the DAC output update.
(2) Filtering is programmable with the FILTCODE parameter in EEPROM. The filter consists of an IIR
filter in the digital. For more details about the corresponding bandwidths, see Section 6.3.3.
(3) Rise and fall times are measured for worst case conditions, hence the difference in Rload for both
parameters. These specifications are only defined by the output amplifier and its load. The output
amplifier (Gain=2) is given a step response at the input from 5%VDD to 45%VDD and the rise/fall times
are measured as the time between reaching 10% and 90% of the step response DC output voltages
(10%VDD to 90%VDD).
(4) Calibration times measured at room temperature with PTC-04 and DB-HALL03 daughterboard,
FIR090288AAMLX firmware loaded onto the PTC-04 and on a MLX90288 in the recommended
application diagram from Section 10 at 10kbit/s.
5.4 Transfer Characteristic Specification
Operating parameter valid for TA = – 40°C to + 150°C & VDD = + 4.5V to + 5.5V (unless specified otherwise).
Item
Output Clamping Range
Output Quiescent (Offset)
Voltage Range
Sensitivity Range
Symbol
CLAMPLO
CLAMPHI
VOQ
S
Remark
9 bits(1)
10 bits (1)
14 bits (YA setting) (1)
RG[2] = 1 (1)
For full-scale output(2)
Min
0
0
– 200
±0.04
Typ
Table 4: Transfer Characteristic Specification
Max
50
100
200
±0.4
Unit
%VDD
%VDD
%VDD
%VDD/G
(1) Please refer to Section 6.2 for more detailed information.
(2) The full-scale output corresponds to 100%Vdd output range. This corresponds to 100% of the ADC
range when FINEGAIN is set to 1 (1024LSB) in a bipolar application.
3901090288
Rev 002
Page 5 of 19
May/12
5 Page 
MLX90288
SMD Programmable Linear Hall Sensor IC
Featuring Analog Ratiometric Output
6.2.14 CRC[9:0]
• Standard CRC10 for data integrity
• Polynomial is x10+x9+x5+x4+x1+1
• EEPROM data is fed LSB first, per address (5bits, after majority voting) sequentially
• The CRC integrity will be preserved by the PSF software when using the PTC04. It could not be
changed manually.
6.3 End User Programmable Parameters
6.3.1 FAULTONCLIP
• Enable error reporting if ADC is clipping for 4 or more successive times
• The diagnostic side for this error is defined by DIAGINFAULT
6.3.2 DIAGINFAULT
• Defines to which side the output will go in case of an active error such as CRC fail or ADC clipping,
the latter only in case FAULTONCLIP is set
• The thresholds are specified under Section 5.6
6.3.3 FILTCODE[3:0]
• The digital IIR filter offers noise reduction and low pass filtering with programmable cut off frequency
FILTCODE[3:0]
0
1
2
3
4
5
6
7
8
Cut-off frequency [Hz]
1114
557
279
139
70
35
17
9
4
Table 8: Filter cut-off frequencies
• For Filter code from 9 to 15, the rounding error becomes too high versus the resolution so those
codes are not to be used.
• This table only applies in case the temperature sensor is enabled, otherwise the cut-off frequency
should be multiplied by a factor of 2 since no more temperature ADC’s are performed anymore.
6.3.4 TEMPSENSOR
• Enables digital gain compensation over temperature (GainMag)
• Requires proper calibration of TEMPOFF and TEMPTC, as well as the SECONDORDERTC
3901090288
Rev 002
Page 11 of 19
May/12
11 Page | ||
| Páginas | Total 19 Páginas | |
| PDF Descargar | [ Datasheet MLX90288.PDF ] | |
Hoja de datos destacado
| Número de pieza | Descripción | Fabricantes |
| MLX90283 | BLDC Vibration Motor Driver | Melexis |
| MLX90285 | 24V Low Noise Two-Coil Fan Driver | Melexis |
| MLX90288 | SMD Programmable Linear Hall Sensor IC | Melexis |
| Número de pieza | Descripción | Fabricantes |
| SLA6805M | High Voltage 3 phase Motor Driver IC. |
 Sanken |
| SDC1742 | 12- and 14-Bit Hybrid Synchro / Resolver-to-Digital Converters. |
 Analog Devices |
|
DataSheet.es es una pagina web que funciona como un repositorio de manuales o hoja de datos de muchos de los productos más populares, |
| DataSheet.es | 2020 | Privacy Policy | Contacto | Buscar |