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MFG:ST  Package Cooled:SMD-20  

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Part Number: L9703

 

MFG: ST

Package Cooled: SMD-20

 

Description: The L9703isa bipolarmonolithic integratedcircuit for monitoring the status of up to eight contacts con...


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L9703 General Description


The L9703isa bipolarmonolithic integratedcircuit for monitoring the status of up to eight contacts connected to GND.

It contains eight contact senseinputs and eight microcomputer compatible three-state outputs.

L9703 Maximum Ratings

Symbol Parameter Test Conditions Unit
VS Transient Supply Voltage (t 1s) +40 V
VCC Logic Supply Voltage 7 V
IIN DC Input DC Current ±40 mA
IINP Input DC Pulse
(test pulse specification: 0 < tP < 2ms, f 0.2Hz, n = 25000)		 50
-75		 mA
mA
IO Output Current Internally Limited  
VEN Enable Input Voltage VCC +0.3
-0.3		 V
V
PO Power Dissipation at Tamb = 80°C
                                              DIP20
                                              SO20		 875
420		 mW
mW
Tstg,TJ Storage and Junction Temperature Range -55 to 150 °C

L9703 Features

`OPERATING DC SUPPLY VOLTAGE RANGE 5V TO 25V
`SUPPLY OVERVOLTAGEPULSE UP TO 40V
`VERY LOW STANDBY QUIESCENT CUR RENT 0.2mA
`INTERNAL CLAMPING DIODES AT CONTACT INPUTS TO VS AND GND
`INPUT PULSE CURRENT CAPABILITY UP TO + 50mA ; 75mA
`NOMINAL CONTACT CURRENT OF 10mADEFINED BY EXTERNAL CONTACT SERIES RE. SISTORS RI N18
`CONTACT STATUS MONITORING BY COMPARING THE RESISTANCE AT CONTACT SENSEINPUTSWITHTHEINTERNALREFER. ENCE RESISTOR VALUE
`HIGHIMMUNITY DUE TORESISTANCE COMPARISONWITH HYSTERESIS

L9703 Connection Diagram

L9703 Connection Diagram

L9703 datasheet

L9703
PDF/DataSheet Download

  • Datasheet: L9703
  • File Size: 173281 KB
  • Manufacturer: STMICROELECTRONICS [STMicroelectronics]
  • Click here to Download

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