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PDF SS1101-A Data sheet ( Hoja de datos )
| Número de pieza | SS1101-A | |
| Descripción | Unipolar Hall Switch-Low Sensitivity | |
| Fabricantes | SEC | |
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SS1101-A
Unipolar Hall Switch-Low Sensitivity
Features and Benefits
– 3.3V to 24V Operation
– -40°C to 150°C Superior temperature operation
– CMOS technology
– Low current consumption
– Chopper-stabilized amplifier stage
– Open drain output
– Low sensitivity
– Small Size SOT23 3L or SIP 3L
– Both RoHS compliant packages
Application Examples
– Automotive, Consumer and Industrial
– Solid-state switch
– Brushless DC motor commutation
– Speed detection
– Angular position detection
– Proximity detection
– Current detector
3 pin SOT23 (suffix SO)
3 pin SIP (suffix UA)
Functional Block Diagram
VDD
Voltage
Regulator
Chopper
OUT
Hall
Plate
GND
SIP Package
Pin 1 – VDD
Pin 2 – GND
Pin 3 – OUT
SOT Package
Pin 1 – VDD
Pin 2 – OUT
Pin 3 – GND
1 V3.10 Nov 1, 2013
1 page  
SS1101-A
Unipolar Hall Switch-Low Sensitivity
Application Information
For proper operation, a 100nF bypass capacitor should be placed as close as possible to the device between the
VDD and ground pin.
For reverse voltage protection, it is recommended to connect a resistor or a diode in series with the VDD pin.
When using a resistor, three points are important:
- the resistor has to limit the reverse current to 50mA maximum (VCC / R1 ≈50mA)
- the resulting device supply voltage VDD has to be higher than VDD min (VDD = VCC – R1.IDD)
- the resistor has to withstand the power dissipated in reverse voltage condition (PD = VCC2/ R1)
When using a diode, a reverse current cannot flow and the voltage drop is almost constant (≈0.7V).
Therefore, a 100Ω/0.25W resistor for 5V application and a diode for higher supply voltage are recommended.
Typical Three-Wire Application Circuit
When a weak power supply is used or when the device is intended to be used in noisy environment, it is recom-
mended that figurefollowed is used.
The low-pass filter formed by R1 and C1 and the Zener diode Z1 bypass the disturbances or voltage spikes occur-
ring on the device supply voltage VDD. The diode D1 provides additional reverse voltage protection.
Automotive and Harsh, Noisy Environments Three-Wire Circuit
Both solutions provide the required reverse voltage protection.
ESD Precautions
Electronic semiconductor products are sensitive to Electro Static Discharge (ESD).
Always observe Electro Static Discharge control procedures whenever handling semiconductor products.
5 V3.10 Nov 1, 2013
5 Page | ||
| Páginas | Total 7 Páginas | |
| PDF Descargar | [ Datasheet SS1101-A.PDF ] | |
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