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SNLS078A Datasheet(PDF) 8 Page - Texas Instruments |
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SNLS078A Datasheet(HTML) 8 Page - Texas Instruments |
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8 / 14 page  70 Absolute Maximum Ratings (Note 1) Supply Voltage (VEE) b 12V Package Power Rating at 25 C 35 Watts (PC Board Mounted) See Section 5 Derate linearly at the rate of 286 mW C Input Voltage 0 to b12V Storage Temperature b 65 to 150 C Lead Temp (Soldering 10 seconds) 260 C For actual power dissipation of the device please refer to section 70 Recommended Operating Conditions Supply Voltage (VEE) b 9v g5% Ambient Temperature 0 to 70 C If MilitaryAerospace specified devices are required please contact the National Semiconductor Sales OfficeDistributors for availability and specifications 80 DP8392C Electrical Characteristics VEE eb9V g5% TA e 0 to 70 C (Notes23) All parameters with respect to CDg and RXg are measured after the pulse transformer except VOC Symbol Parameter Min Typ Max Units IEE1 Supply current out of VEE pinnon transmitting b 85 b 130 mA IEE2 Supply current out of VEE pintransmitting b 125 b 180 mA IRXI Receive input bias current (RXI) b 2 a 25 m A ITDC Transmit output dc current level (TXO) 37 41 45 mA ITAC Transmit output ac current level (TXO) g 28 ITDC mA VCD Collision threshold (Receive mode) b 145 b 153 b 158 V VOD Differential output voltage (RXg CDg) g 550 g 1200 mV VOC Common mode output voltage (RXg CDg) b 15 b 20 b 25 V VOB Diff output voltage imbalance (RXg CDg) g 40 mV VTS Transmitter squelch threshold (TXg) b 175 b 225 b 300 mV CX Input capacitance (RXI) 12 pF RRXI Shunt resistancenon transmitting (RXI) 100 KX RTXO Shunt resistancetransmitting (TXO) 10 KX 90 DP8392C-1 Electrical Characteristics VEE eb9V g5% TA e 0 to 70 C (Notes23) All parameters with respect to CDg and RXg are measured after the pulse transformer except VOC Symbol Parameter Min Typ Max Units IEE1 Supply current out of VEE pinnon transmitting b 85 b 130 mA IEE2 Supply current out of VEE pintransmitting b 125 b 180 mA IRXI Receive input bias current (RXI) b 2 a 25 m A ITDC Transmit output dc current level (TXO) 37 41 45 mA ITAC Transmit output ac current level (TXO) g 28 ITDC mA VCD Collision threshold (Receive mode) b 145 b 153 b 158 V VOD Differential output voltage (RXg CDg) g 550 g 1200 mV VOC Common mode output voltage (RXg CDg) b 15 b 20 b 25 V VOB Diff output voltage imbalance (RXg CDg) g 40 mV VTS Transmitter squelch threshold (TXg) b 175 b 225 b 275 mV CX Input capacitance (RXI) 12 pF RRXI Shunt resistancenon transmitting (RXI) 100 KX RTXO Shunt resistancetransmitting (TXO) 75K 10 KX Note 1 Absolute maximum ratings are those values beyond which the safety of the device cannot be guaranteed They are not meant to imply that the device should be operated at these limits Note 2 All currents into device pins are positive all currents out of device pins are negative All voltages referenced to ground unless otherwise specified Note 3 All typicals are given for VEE eb9V and TA e 25 C 7 |
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