Alpha Microelectronics A4231
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...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 min.
● 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 min.