bipolar monolithic Integrated Circuit designed proximity detection app

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bipolar monolithic Integrated Circuit designed proximity detection app

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bipolar monolithic Integrated Circuit designed proximity detection applications. function based damping oscillator which switches transistor output.
FEATURES
Wide Supply Voltage Range from 4.75 Supply Current Without Oscillator typical Complementary Outputs with Short-Circuit Protection P-Type Drivers Bipolar PMOS Transistors Adjustable Output Current From 100µA 12mA Adjustable Detection Distance Hysteresis Adjustable Temperature Compensation Detection Distance Protection against False Polarity Power-On-Delay Output typical
BLOCK DIAGRAM
CABT
Power-On Level
VREF
Hysteresis Oscillator
Voltage Reference
Power-On Delay
Short-Circuit Detection
Rectifier
Schmitt Trigger
Amplifier
Output Stages
Drive Current
Figure
analog microelectronics
Analog Microelectronics GmbH Fahrt 55124 Mainz Internet: www.analogmicro.de Phone: (0)6131/91 Fax: (0)6131/91 E-Mail: info@analogmicro.de
April 2005
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ELECTRICAL SPECIFICATIONS
Tamb 25°C, 4.75 Parameter Supply Current Symbol Conditions 4.75V, 4.75V, 220µA 35V, Output Source Current Output Sink Current Max. Current Output Voltage High Output Voltage Output Current Current Short Circuits (res. (RS) (res. ILED IOFF VCabt VCabt VCabt without external Iext VCgl 4.75V Min. 4.45 -1.7 -1.2 Typ.
Max. 4.75 -0.7
Unit
Short Circuit Detection Threshold
TYPICAL PERFORMANCE CHARACTERISTICS
Parameter Scanning Duty Cycle Short Circuit Mode) TOFF TOFF /TON Power-On-Delay Oscillator Frequency Oscillator Amplitude Detection Frequency Detection Distance Res. Hysteresis Resistor Det. Distance Temp. Comp. Res. Rectifier Filter Capacitor Tabt fOsc VOsc fdet Cglext external depends fOsc (Cglint 150pF) (fOsc 770kHz, Symbol Conditions Cabt 0nF, Cabt 1nF, Cabt 0nF, Cabt 1nF, Cabt Cabt Cabt Cabt depends res. 0.05 Min. Typ. Max. Unit
analog microelectronics
April 2005
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ABSOLUTE MAXIMUM RATINGS
Supply Voltage Output Voltage Output Current Junction Temperature Power Dissipation Tamb 25°C Derate Tamb 25°C Storage Temperature Range Operating Temperature Range Tamb Tamb 20mA 150°C 600mW 5mW/°C 55.125°C 25.85°C (VCC 35V) 20.85°C (VCC 4.75V 35V)
FUNCTIONAL DESCRIPTION
proximity detection based amplitude attenuation LC-oscillator which depends distance metal object. signal from oscillator rectified filtered, then detected Schmitt-Trigger which switches outputs (for close switch operation) (for open switch operation). additional output shows on-state detection. blanked case short circuit. protect circuit from overload, outputs disconnected retested periodically. limitation output current resistor temperature compensation adapt oscillator voltage different types external resonators performed connecting resistor between pins (VREF) (RK). circuit power-on-delay which adjusted with CABT. Within this delay, outputs high level.
FUNCTIONAL DIAGRAMS
VREF
AM313
Output Ground
COSC
Figure
analog microelectronics
April 2005
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PINOUT
NAME CABT VREF
DESIGNATION Resonator Input Detection Distance Temp. Comp. Driver Rectifier Filter Capacitor Power-On-Delay Adjust Cap. Ground Reference Voltage Output Output Transistor Current Adjust Output (open switch) Output (closed switch) Short Circuit Detection Input Connected Connected Positive Supply Voltage Hysteresis Adjust Detection Distance Adjust
CABT VREF
Figure
DELIVERY
available version: 16-pin-DIL packages (samples) (n)-packages dice blue foil
analog microelectronics
April 2005

bipolar monolithic Integrated Circuit designed proximity detection app

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