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LTC490 Fiches technique(PDF) 2 Page - Linear Technology |
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LTC490 Fiches technique(HTML) 2 Page - Linear Technology |
2 / 8 page LTC490 2 (Note 1) Supply Voltage (VCC) ............................................... 12V Driver Input Currents ........................... – 25mA to 25mA Driver Input Voltages ....................... –0.5V to VCC +0.5V Driver Output Voltages .......................................... ±14V Receiver Input Voltages ......................................... ±14V Receiver Output Voltages ................ –0.5V to VCC +0.5V Operating Temperature Range LTC490C................................................. 0 °C to 70°C LTC490I............................................. – 40 °C to 85°C Storage Temperature Range ................. – 65 °C to 150°C Lead Temperature (Soldering, 10 sec).................. 300 °C A G A U A R BSOLUTEXI TI S PACKAGE/ORDER I FOR ATIO TJMAX = 125°C, θJA = 100°C/ W (N8) TJMAX = 150°C, θJA = 150°C/ W (S8) N8 PACKAGE 8-LEAD PLASTIC DIP S8 PACKAGE 8-LEAD PLASTIC SOIC 1 2 3 4 8 7 6 5 TOP VIEW VCC R D GND A B Z Y R D ORDER PART NUMBER S8 PART MARKING LTC490CN8 LTC490CS8 LTC490IN8 LTC490IS8 490 490I ELECTRICAL C C HARA TERISTICS C D VCC = 5V ±5% SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS VOD1 Differential Driver Output Voltage (Unloaded) IO = 0 q 5V VOD2 Differential Driver Output Voltage (with Load) R = 50 Ω (RS422) q 2V R = 27 Ω (RS485) (Figure 1) q 1.5 5 V ∆VOD Change in Magnitude of Driver Differential Output R = 27 Ω or R = 50Ω (Figure 1) q 0.2 V Voltage for Complementary Output States VOC Driver Common-Mode Output Voltage R = 27 Ω or R = 50Ω (Figure 1) q 3V ∆ VOC Change in Magnitude of Driver Common Mode R = 27 Ω or R = 50Ω (Figure 1) q 0.2 V Output Voltage for Complementary Output States VIH Input High Voltage (D) q 2.0 V VIL Input Low Voltage (D) q 0.8 V lIN1 Input Current (D) q ±2 µA lIN2 Input Current (A, B) VCC = 0V or 5.25V VIN = 12V q 1mA VIN = – 7V q – 0.8 mA VTH Differential Input Threshold Voltage for Receiver – 7V ≤ VCM ≤ 12V q – 0.2 0.2 V ∆VTH Receiver Input Hysteresis VCM = 0V q 70 mV VOH Receiver Output High Voltage IO = –4mA, VID = 0.2V q 3.5 V VOL Receiver Output Low Voltage IO = 4mA, VID = – 0.2V q 0.4 V IOZR Three-State Output Current at Receiver VCC = Max 0.4V ≤ VO ≤ 2.4V q ±1 µA ICC Supply Current No Load; D = GND or VCC q 300 500 µA RIN Receiver Input Resistance – 7V ≤ VO ≤ 12V q 12 k Ω IOSD1 Driver Short-Circuit Current, VOUT = High VO = – 7V q 100 250 mA IOSD2 Driver Short-Circuit Current, VOUT = Low VO = 12V q 100 250 mA IOSR Receiver Short-Circuit Current 0V ≤ VO ≤ VCC q 785 mA IOZ Driver Three-State Output Current VO = – 7V to 12V q ±2 ±200 µA Consult factory for Military grade parts. |
Numéro de pièce similaire - LTC490 |
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Description similaire - LTC490 |
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