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LTC1685 Datasheet(PDF) 2 Page - Linear Technology |
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LTC1685 Datasheet(HTML) 2 Page - Linear Technology |
2 / 12 page 2 LTC1685 PACKAGE/ORDER I FOR ATIO A G A U A R BSOLUTEXI TI S (Note 1) Supply Voltage (VDD) .............................................. 10V Control Input Currents .................... – 100mA to 100mA Control Input Voltages .................. – 0.5V to VDD + 0.5V Driver Input Voltages .................... – 0.5V to VDD + 0.5V Driver Output Voltages .................................. +12V/– 7V Receiver Input Voltages ................................. +12V/– 7V Receiver Output Voltages ............. – 0.5V to VDD + 0.5V Receiver Input Differential ...................................... 10V Short-Circuit Duration (Driver VOUT: – 7V to 10V, Receiver VOUT: 0V to VDD) ............................... Indefinite Operating Temperature Range LTC1685C ............................................... 0 °C to 70°C LTC1685I ............................................. –40 °C to 85°C Storage Temperature Range ................ – 65 °C to 150°C Lead Temperature (Soldering, 10 sec)................. 300 °C ORDER PART NUMBER 1 2 3 4 8 7 6 5 TOP VIEW VDD B A GND S8 PACKAGE 8-LEAD PLASTIC SO RO RE DE DI R D TJMAX = 125°C, θJA = 150°C/ W Consult factory for Military grade parts. S8 PART MARKING DC ELECTRICAL CHARACTERISTICS SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS VOD1 Differential Driver Output (Unloaded) IOUT = 0 q VDD V VOD2 Differential Driver Output (With Load) R = 50 Ω (RS422) 2 V R = 27 Ω (RS485), Figure 1 q 1.5 VDD V ∆VOD Change in Magnitude of Driver Differential R = 27 Ω or 50Ω, Figure 1 q 0.2 V Output Voltage for Complementary Output States VOC Driver Common Mode Output Voltage R = 27 Ω or 50Ω, VDD = 5V, Figure 1 q 23 V ∆VOC Change in Magnitude of Driver Common R = 27 Ω or 50Ω, Figure 1 q 0.2 V Mode Output Voltage for Complementary Output States VIH Input High Voltage DE, DI, RE q 2V VIL Input Low Voltage DE, DI, RE q 0.8 V IIN1 Input Current DE, DI, RE q –1 1 µA IIN2 Input Current (A, B) VA, VB = 12V, DE = 0, VDD = 0V or 5.25V q 500 µA VA, VB = – 7V, DE = 0, VDD = 0V or 5.25V q – 500 µA VTH Differential Input Threshold Voltage – 7V ≤ VCM ≤ 12V q – 0.3 0.3 V for Receiver ∆VTH Receiver Input Hysteresis VCM = 0V 25 mV VOH Receiver Output High Voltage IOUT = – 4mA, VID = 300mV q 3.5 4.8 V VOL Receiver Output Low Voltage IOUT = 4mA, VID = – 300mV q 0.4 V IOZR Three-State (High Impedance) Output 0.4V ≤ VOUT ≤ 2.4V q –1 1 µA Current at Receiver IDD Supply Current No Load, Pins 2, 3, 4 = 0V or VDD q 712 mA IOSD1 Driver Short-Circuit Current, VOUT = HIGH VOUT = – 7V or 10V (Note 5) q 20 mA LTC1685CS8 LTC1685IS8 1685 1685I The q denotes the specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25°C. VDD = 5V ± 5%, unless otherwise noted. (Notes 2, 3) |
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