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PDF MLX90291 Data sheet ( Hoja de datos )
| Número de pieza | MLX90291 | |
| Descripción | SMD Programmable Linear Hall Sensor IC | |
| Fabricantes | Melexis | |
| Logotipo |  |
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MLX90291
SMD Programmable Linear Hall Sensor IC
Featuring PWM Output
Features and Benefits
Programmable Hall effect sensor
12-bit 125Hz PWM output signal
proportional to the magnetic flux density
Switch function
Measurement range from ±15mT to ±400mT
Low noise output signal (PWM jitter)
Programmable through the connector (supply,
ground & output)
16 bit customer ID number (48 bit MLX ID for
traceability purposes)
SOIC8 package RoHS compliant
Lead free component, suitable for lead free
soldering profile 260°C
Application Examples
Rotary position sensor
Linear position sensor
Contactless switch
Ordering Code
Product Code Temperature Code
MLX90291
K
MLX90291
K
Package Code
DC
DC
Option Code
BCA-000
BCA-000
Legend:
Temperature Code:
Package Code:
Packing Form:
K for Temperature Range -40°C to 125°C
DC for SOIC8
TU for Tube, RE for Reel
Ordering Example: MLX90291-KDC-BCA-000-TU
Packing Form Code
TU
RE
3901090291
Rev 002
Page 1 of 18
Data Sheet
Mar/12
1 page  
MLX90291
SMD Programmable Linear Hall Sensor IC
Featuring PWM Output
7 General Electrical Specifications
Operating Parameters TA = -40oC to 125oC, Vdd = 5.0 V, using recommended application diagram, unless
otherwise specified.
Parameter
Nominal Supply Voltage
Supply Current
Peak Supply Current
Symbol
VDD
IDD
IDDpeak
Test Conditions
During power-up and PWM switching
Min
4.5
Reset Voltage (POR)
POR Threshold Hysteresis
Operating Threshold (rising)
Under-Voltage Threshold (falling)
Operating / Under-Voltage Threshold
HPryosgteraremsmising Voltage
Overvoltage detection
Load resistance range
(Pull-up/down)
Load Capacitor range
Output Saturation Voltage
Push Pull Mode
Output Saturation Voltage
Open Drain Mode
Output Leakage Current
Open Drain Mode
Output Short Circuit Current
VPOR
VPORHYST
VOPERATING
VUNDER
VHYST
VPROG
VOVER
RL
CL
VSATPPHI
VSATPPLO
VSATOD
ILEAKOD
IOUTSCGND
IOUTSCVDD
Immediate diagnostic low without reset
in case of recovery
Not Locked Part
Output = High Impedance
Output = High Impedance
Pull-up OUT to 5V
Between OUT and GND
IOUT = + 2mA
IOUT = – 2 mA
IOUT = – 2 mA
Output = Low (Driver ON)
VOUT = + 5 V
Output = High (Driver OFF)
Current limitation fully ON
Current limitation fully ON
2.2
2.7
6.7
7.5(1)
2
VDD – 0.3
+ 15
– 28
Table 3: General electrical parameters
(1) No overlap possible at the same temperature
Typ
5
8
0.3
3.3
3
0.1
7.4
8.5
4.7
10
2
Max Units
5.5 V
10 mA
15 mA
2.7 V
V
3.8 V
V
V
7.7(1)
V
V
kΩ
nF
V
0.3 V
0.3 V
10 µA
+ 28 mA
– 15 mA
8 Magnetic specification
Operating Parameters TA = -40oC to 125oC, Vdd = 5.0 V, unless otherwise specified.
Parameter
Magnetic Flux Density range
Symbol
B
Test Conditions
Min Typ Max Units
±15 ±40 ±400
mT
Table 4: Magnetic specification
3901090291
Rev 002
Page 5 of 18
Data Sheet
Mar/12
5 Page 
MLX90291
SMD Programmable Linear Hall Sensor IC
Featuring PWM Output
12.8 PWM Mode duty cycle definition (DCDEF)
The PWM duty cycle definition is as follows.
DCDEF
0
1
PWM duty cycle definition
tLow / (tLow + tHigh)
tHigh / (tLow + tHigh)
Table 15: PWM duty cycle definition
OUT
OUT
DCDEF=0
OUT
OUT
DCDEF=1
tON
tOFF
Period 1
tON
tOFF
Period 1
Period 2
Period 2
Figure 2: Two different PWM modes
Time
Time
3901090291
Rev 002
Figure 3: Power-on behaviour of the two different modes
Page 11 of 18
Data Sheet
Mar/12
11 Page | ||
| Páginas | Total 18 Páginas | |
| PDF Descargar | [ Datasheet MLX90291.PDF ] | |
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