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Part Number: L9704D

 

 

 

 

Description: The L9704 is a bipolar monolithic integrated circuit formonitoring the statusof up to eight contactsco...


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L9704D General Description


The L9704 is a bipolar monolithic integrated circuit formonitoring the statusof up to eight contactsconnected to the power supply (battery).

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

L9704D 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

L9704D 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

L9704D Connection Diagram

L9704D Connection Diagram

L9704D datasheet

L9704D
PDF/DataSheet Download

  • Datasheet: L9704D
  • File Size: 175252 KB
  • Manufacturer: STMICROELECTRONICS [STMicroelectronics]
  • Click here to Download

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