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LX5249CDBK Datasheet(PDF) 3 Page - Microsemi Corporation |
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LX5249CDBK Datasheet(HTML) 3 Page - Microsemi Corporation |
3 / 6 page 9-L IN E LVD SCSI T ERMIN ATOR LX5248/LX5249 PRODUCT D A T ABOOK 1996/1997 3 Copyright © 2001 Rev. 0.6 1/01 P RELIMINA R Y D AT A S HEET UltraMAX Termpwr Voltage V TERM Signal Line Voltage Disconnect Input Voltage Operating Junction Temperature Range LX5248 / LX5249 3.0 5.25 V 0 5.0 V 0V TERM V 0 70 °C RECOMMENDED OPER A TING CONDITIONS (Note 2) Parameter Symbol Units Recommended Operating Conditions Min. Typ. Max. ELECTRICAL CHARACTERISTICS (Unless otherwise specified, these specifications apply over the operating ambient temperature range of 0°C ≤ T A ≤ 70°C. TermPwr = 3.3V, DISCONNECT: LX5248/49 = L. Low duty cycle pulse testing techniques are used which maintains junction and case temperatures equal to the ambient temperature.) Parameter Symbol Test Conditions Units LX5248 / 5249 Min. Typ. Max. 21 25 mA 5 10 µA 1.125 1.25 1.375 V 100 112 125 mV 100 105 110 Ω 100 200 300 Ω 2.5 pF 0 2 µA 1 µA 100 150 ms LVD Terminator Section TermPwr Supply Current LVD I CC All term lines = Open DISCONNECT: LX5248/49 = H Common Mode Voltage V CM Offset Voltage (Fail Safe Bias Voltage) V FSB Open circuit between - and + (see Note 3) Differential Terminator Impedance Z D V OD = -1V to 1V Common Mode Impedance Z CM 0V to 2.5V Output Capacitance C O DISCONNECT: LX5248/49 = H Output Leakage I LEAK DISCONNECT: LX5248/49 = H, V LINE = 0 to 4V, TA=25°C DISCONNECT: LX5248/49 = H, V TERM = 0V, VLINE = 2.7V Mode Change Delay t DF DIFFSENSE = 1.4V to 0V Note 2. Range over which the device is functional. DISCONNECT Threshold V TH Input Current I IL DISCONNECT: LX5248/49 = 0V 0.8 2.0 V 10 µA DISCONNECT Section DIFFSENSE Section 1.2 1.3 1.4 V 5.0 15.0 mA 200 µA 10 µA DIFFSENSE Output Voltage V DIFF DIFFSENSE Output Source Current I DIFF DIFFSENSE = 0V DIFFSENSE Sink Current I SINK (DIFF) V IN = 2.75V DIFFSENSE Output Leakage I SINK (DIFF) DISCONNECT: LX5248/49 = H, T A = 25°C Note 3. Open circuit failsafe voltage. MASTER / SLAVE Threshold V TH (MS) Input Current I IL (MS) MASTER / SLAVE: LX5248/49 = 0V 0.8 2.0 V 10 µA MASTER / SLAVE Section |
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