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LT1280AIN Datasheet(PDF) 3 Page - Linear Technology |
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LT1280AIN Datasheet(HTML) 3 Page - Linear Technology |
3 / 8 page 3 LT1280A/LT1281A Driver Output Voltage TEMPERATURE (°C) –55 –10 –8 –4 –2 0 10 4 0 50 75 LT1280A • TPC03 –6 6 8 2 –25 25 100 125 OUTPUT HIGH OUTPUT LOW RL = 3k VCC = 5V VCC = 4.5V VCC = 5.5V VCC = 4.5V VCC = 5V VCC = 5.5V CC HARA TERISTICS A TYPICALPERFOR CE ELECTRICAL C C HARA TERISTICS (Note 2) PARAMETER CONDITIONS MIN TYP MAX UNITS Logic Input Current 0.8V ≤ VIN ≤ 2.0V q 520 µA Output Short-Circuit Current VOUT = 0V ±917 mA Output Leakage Current Shutdown VOUT = ±30V (Note 4) q 10 100 µA Data Rate (Note 7) RL = 3k, CL = 2500pF 120 kBaud RL = 3k, CL = 1000pF 250 kBaud Slew Rate RL = 3k, CL = 51pF 15 30 V/ µs RL = 3k, CL = 2500pF 4 7 V/ µs Propagation Delay Output Transition tHL High-to-Low (Note 5) 0.6 1.3 µs Output Transition tLH Low-to-High 0.5 1.3 µs Receiver Input Voltage Thresholds Input Low Threshold (VOUT = High) C Grade q 0.8 1.3 V Input High Threshold (VOUT = Low) C Grade q 1.7 2.4 V Input Low I Grade q 0.2 1.3 V Input High I Grade q 1.7 3.0 V Hysteresis q 0.1 0.4 1.0 V Input Resistance VIN = ±10V 357 k Ω Output Leakage Current Shutdown (Note 4) 0 ≤ VOUT ≤ VCC q 110 µA Output Voltage Output Low, IOUT = – 1.6mA q 0.2 0.4 V Output High, IOUT = 160µA (VCC = 5V) q 3.5 4.2 V Output Short-Circuit Current Sinking Current, VOUT = VCC –20 – 10 mA Sourcing Current, VOUT = 0V 10 20 mA Propagation Delay Output Transition tHL High-to-Low (Note 6) 250 600 ns Output Transition tLH Low-to-High 350 600 ns Note 4: Supply current measurements in shutdown are performed with VON/OFF ≤ 0.1V. Note 5: For driver delay measurements, RL = 3k and CL = 51pF. Trigger points are set between the driver’s input logic threshold and the output transition to the zero crossing (tHL = 1.4V to 0V and tLH = 1.4V to 0V). Note 6: For receiver delay measurements, CL = 51pF. Trigger points are set between the receiver’s input logic threshold and the output transition to standard TTL/CMOS logic threshold (tHL = 1.3V to 2.4V and tLH = 1.7V to 0.8V). Note 7: Data rate operation guaranteed by slew rate, short-circuit current and propagation delay tests. The q denotes specifications which apply over the operating temperature range (0 °C ≤ TA ≤ 70°C for commercial grade, and –40°C ≤ TA ≤ 85°C for industrial grade. Note 1: Absolute Maximum Ratings are those values beyond which the life of the device may be impaired. Note 2: Testing done at VCC = 5V and VON/OFF = 3V, unless otherwise specified. Note 3: Supply current is measured as the average over several charge pump cycles. C + = C – = C1 = C2 = 0.1 µF. All outputs are open, with all driver inputs tied high. Driver Maximum Output Voltage vs Load Capacitance LOAD CAPACITANCE (nF) 0 5.0 5.5 6.0 6.5 7.0 7.5 8.0 24 6 8 LT1280A • TPC01 10 1357 9 20k BAUD 60k BAUD 120k BAUD Driver Minimum Output Voltage vs Load Capacitance LOAD CAPACITANCE (nF) 0 –7.0 –6.5 –6.0 –5.5 –5.0 –4.5 –4.0 24 6 8 LT1280A • TPC02 10 1357 9 120k BAUD 60k BAUD 20k BAUD |
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