l9703 STMicroelectronics, l9703 Datasheet
l9703
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l9703 Summary of contents
Page 1
... SENSE INPUTS WITH THE INTERNAL REFER- . ENCE RESISTOR VALUE HIGH IMMUNITY DUE TO RESISTANCE COM- PARISON WITH HYSTERESIS DESCRIPTION The L9703 is a bipolar monolithic integrated cir- cuit for monitoring the status eight con- tacts connected to GND. BLOCK DIAGRAM March 1992 DIP-20 ...
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... L9703 PIN CONNECTION (top view) ABSOLUTE MAXIMUM RATINGS Symbol V Transient Supply Voltage ( Logic Supply Voltage CC I Input DC Current Input DC Pulse INP (test pulse specification: 0 < tP < 2ms Output Current O V Enable Input Voltage EN P Power Dissipation amb ...
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... S V 0.1V GND S 0. HIGH ( ENH 5V < V < 16V S - 100 C j All Inputs Open All Inputs Closed EN = LOW C 50pF OUT C 50pF OUT L9703 5.25V unless oth- CC Typ. Max. Unit 0 420 800 -0 0.2 0 ...
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... L9703 APPLICATION CIRCUIT Figure 1 : Typical Application Diagram for the L9703 Circuit. The current flowing in the arrow direction is assumed positive. The external capacitors C at the corresponding pins. 4/9 and C represent the total wiring capacitance IN OUT ...
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... FUNCTIONAL DESCRIPTION The L9703 circuit monitors the status of the contacts connected to ground and through this series exter- nal resistors R to the contact sense input pins. The IN contacts equivalent circuit is supposed shown in fig. 2. The L9703 circuit compares the input current with the current through the internal reference resistor ...
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... L9703 Figure 3 : The Output Voltage as a Function of the Input Resistance at the Corresponding Contact Sense Input. 6/9 ...
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... SO20 PACKAGE MECHANICAL DATA DIM. MIN 0 0. 7 TYP. MAX. MIN. 2.65 0.3 0.004 2.45 0.49 0.014 0.32 0.009 0.5 45 (typ.) 13.0 0.496 10.65 0.394 1.27 11.43 7.6 0.291 1.27 0.020 0.75 8 (max.) L9703 inch TYP. MAX. 0.104 0.012 0.096 0.019 0.013 0.020 0.512 0.419 0.050 0.450 0.299 0.050 0.030 7/9 ...
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... L9703 DIP20 PACKAGE MECHANICAL DATA DIM. MIN. a1 0.254 B 1. 8/9 mm TYP. MAX. MIN. 0.010 1.65 0.055 0.45 0.25 25.4 8.5 2.54 22.86 7.1 3.93 3.3 1.34 inch TYP. MAX. 0.065 0.018 0.010 1.000 0.335 0.100 0.900 0.280 0.155 0.130 0.053 ...
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... SGS-THOMSON Microelectronics products are not authorized for use as critical components in life support devices or systems without express written approval of SGS-THOMSON Microelectronics. 1994 SGS-THOMSON Microelectronics - All Rights Reserved SGS-THOMSON Microelectronics GROUP OF COMPANIES Australia - Brazil - France - Germany - Hong Kong - Italy - Japan - Korea - Malaysia - Malta - Morocco - The Netherlands - Singapore - Spain - Sweden - Switzerland - Taiwan - Thaliand - United Kingdom - U.S.A. L9703 9/9 ...