|
|
PDF SS1438 Data sheet ( Hoja de datos )
| Número de pieza | SS1438 | |
| Descripción | Unipolar Hall Switch | |
| Fabricantes | SEC | |
| Logotipo |  |
|
Hay una vista previa y un enlace de descarga de SS1438 (archivo pdf) en la parte inferior de esta página. Total 8 Páginas | ||
|
No Preview Available !
SS1438
Unipolar Hall Switch
Features and Benefits
– Wide operating voltage range from 2.5V to 24V
– Medium sensitivity
– CMOS technology
– Chopper-stabilized amplifier stage
Superior temperature stability
Extremely low switchpoint drift
Insensitive to physical stress
– Low current consumption
– Open drain output
– Tiny SOT23 3L or flat SIP 3L
Both RoHS Compliant packages
Application Examples
– Automotive, Consumer and Industrial
– Solid-state switch
– Interrupter
– Speed detection
– Linear position detection
– Angular position detection
– Proximity detection
3 pin SOT23 (suffix SO)
3 pin SIP (suffix UA)
Functional Block Diagram
VDD
Voltage
Regulator
Chopper
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
OUT
1 V3.10 Nov 1, 2013
1 page  
SS1438
Unipolar Hall Switch
Output Behavior versus Magnetic Pole
DC Operating Parameters TA = -40°C to 150°C, VDD = 2.5 to 24V (unless otherwise specified)
Test Conditions (UA) Test Conditions (SO) OUT
B > BRP
B < BRP
High
B < BOP
B > BOP
Low
The SOT-23 device is reversed from the UA package. The SOT-23 output transistor will be turned on(drops low) in the presence of a
sufficiently strong South pole magnetic field applied to the marked face.
Application Information
It is strongly recommended that an external bypass capacitor be connected (in close proximity to the Hall sensor)
between the supply(VDD Pin) and ground(GND Pin) of the device to reduce both external noise and noise gener-
ated by the chopper stabilization technique. As is shown in the following figure, a 0.1μF capacitor is typical.
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
recommended that following figure is used.
5 V3.10 Nov 1, 2013
5 Page | ||
| Páginas | Total 8 Páginas | |
| PDF Descargar | [ Datasheet SS1438.PDF ] | |
Hoja de datos destacado
| Número de pieza | Descripción | Fabricantes |
| SS143 | Unipolar Hall-Effect Digital Switch | SEC |
| SS1438 | Unipolar Hall Switch | SEC |
| SS143A | (SS100 Series) Surface Mount Digital Position Sensors |  Honeywell |
| 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 |