IC FOR PROXIMITY DETECTOR - Analog Micro
Description
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IC FOR PROXIMITY DETECTOR
GENERAL DESCRIPTION
AM 313
The AM 313 is a bipolar monolithic Integrated Circuit designed for proximity detection applications.
The function is based on the damping of an LC oscillator which switches a transistor and LED output.
FEATURES
• • • • • • • • • • Wide Supply Voltage Range from 4.
75 to 35V Supply Current Without Oscillator typical 1mA Complementary Outputs with Short–Circuit Protection P–Type Drivers for PNP Bipolar and PMOS Transistors Adjustable Output Current From 100µA to 12mA Adjustable Detection Distance and Hysteresis Adjustable Temperature Compensation for Detection Distance Protection against False Polarity Power–On–Delay LED Output 4mA typical
BLOCK DIAGRAM
VCC CABT
14
Power-On Level
5
VREF RK LC RD RH
7 2 1 16 15
Hysteresis Oscillator
Voltage Reference
Power-On Delay
Short-Circuit Detection
11 10 9 8
RM Q Q RS
Rectifier
Schmitt Trigger
Amplifier
Output Stages
Drive Current LED
4
Figure 1
CGL
3
LED
6
GND
analog microelectronics
Analog Microelectronics GmbH An der Fahrt 13, D – 55124 Mainz Internet: www.
analogmicro.
de Phone: +49 (0)6131/91 073 – 0 Fax: +49 (0)6131/91 073 – 30 E–Mail: info@analogmicro.
de
April 2005 1/4
Datasheet pdf - http://www.
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kr
IC FOR PROXIMITY DETECTOR
ELECTRICAL SPECIFICATIONS
Tamb = 25°C, VCC = 4.
75 to 35 V Parameter Supply Current Symbol ICC Conditions VCC = 4.
75V, IRd = 0µA VCC = 4.
75V, IRd = 220µA VCC = 35V, IRd = 0µA Output Source Current Output Sink Current Max.
Current Low Output Voltage High Output Voltage LED Output Current Current Short Circuits IQL (res.
IQ) IQL IQL = f (RS) UQL UQ (res.
UQ) ILED ION IOFF VCabt = 2V, VRm = 1V VCabt = 1V, VRm = 1V VCabt = 2V, VCC = 35V without external RS RS = 5Ω Iext = 100 µA VCgl = 2V, VCC = 4.
75V Min.
0.
6 1.
2 0.
8 100 100 12 0.
6 4.
45 2.
8 250 50 –1.
7 4 300 80 –1.
2 Typ.
0.
9 1.
5 1.
1 150 150 18 0.
9
AM 313
Max.
1.
2 1.
8 1.
5 200 200 1.
2 4.
75 350 150 –0.
7
Unit mA mA mA µA µA mA...
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