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PDF A4231 Data sheet ( Hoja de datos )
| Número de pieza | A4231 | |
| Descripción | Proximity Sensor Integrated Circuit | |
| Fabricantes | Alpha Microelectronics | |
| Logotipo |  |
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a4231 general features
The a4231 is a proximity sensor integrated circuit to be used with a broad range of
inductive single-coiled proximity transducers in proximity detection applications
Monolithic IC in bipolar technology
User-adjustable sensing range by means of a single external resistor
User-adjustable hysteresis (0…15%)
5.5V…35V broad supply voltage range
Low-voltage operation possible using stabilised 4.5V…5.5V voltage source
Internal voltage regulator to improve immunity against fluctuations of supply
voltage
Broad operating temperature range: -25°C...90°C
Can work with a broad selection of inductive transducers
NPN open collector output with guaranteed sink current of 150mA
Output overload/over current protection
Integrated power-on and detect LED drivers
Normally open(NO)/normally closed(NC) select pin
Broad range of operating frequencies: 100kHz…1MHz
Output over current and short-circuit protection
Easy temperature compensation of proximity transducers
Package – QFN-24
example application schematic
CF
100nF/6.3V
RF 10%
Inductive
Transducer
L
CRES
L1
RF
220nF/6.3V
20%
91kohm
L2
Rref
GND
RH
Rhyst, 5%
(optional)
NO/NC
NO/NC
VCC
min. 2.2uF/40V
electrolytic
Vcc
220nF/6.3V
20% ceramic
CB
P_LED
a4231
D_LED
OutN
CDET
Cdet, 10%
(optional)
COVL
Covl, 10%
100nF/6.3V
GND1
RSN
RS,N
1R6 5%
125mW
OutN
Typical application schematic of a proximity sensor/detector
1 page | ||
| Páginas | Total 2 Páginas | |
| PDF Descargar | [ Datasheet A4231.PDF ] | |
Hoja de datos destacado
| Número de pieza | Descripción | Fabricantes |
| A4231 | Proximity Sensor Integrated Circuit | Alpha Microelectronics |
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