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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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LTC1922-1 датащи(PDF) 2 Page - Linear Technology |
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LTC1922-1 датащи(HTML) 2 Page - Linear Technology |
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2 / 24 page  LTC1922-1 2 SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS Input Supply UVLO Undervoltage Lockout Measured on VCC 10.25 10.7 V UVHY UVLO Hysteresis Measured on VCC 3.8 4.2 V ICCST Start-Up Current VCC = VUVLO – 0.3V q 145 250 µA ICCRN Operating Current 47 mA VSHUNT Shunt Regulator Voltage Current Into VCC = 10mA 10.2 10.8 V RSHUNT Shunt Resistance Current Into VCC = 7mA to 17mA –1.5 2 Ω Delay Blocks DTHR Delay Pin Threshold SBUS = 1.5V 1.38 1.50 1.62 V ADLY and PDLY SBUS = 2.25V 2.08 2.25 2.42 V DHYS Delay Hysteresis Current SBUS = 1.5V, ADLY/PDLY = 1.6V 1.1 1.3 1.45 mA ADLY and PDLY DTMO Delay Time-Out SBUS = 1.5V 600 ns SBUS = 2.25V 900 ns DZRT Zero Delay Threshold Measured on SBUS 3 4.15 5 V Phase Modulator ROS RAMP Offset Voltage Measured on COMP, RAMP = 0V 0.4 V IRMP RAMP Discharge Current RAMP = 1V, COMP = 0V 30 50 mA ISLP Slope Compensation Current Measured on CS, CT = 1.5V 35 55 75 µA CT = 3V 70 110 150 µA DCMX Maximum Phase Shift COMP = 4V q 95 99.5 % DCMN Minimum Phase Shift COMP = 0V q 0.1 0.6 % VCC to GND Low Impedance Source ......................... –0.3V to 10V (Chip Self Regulates at 10.3V) All Other Pins to GND (Low Impedance Source) ..................... –0.3V to 5.5V VCC (Current Fed).................................................. 25mA VREF Output Current ................................ Self Regulated Outputs (A, B, C, D, E, F) Current ..................... ±100mA Operating Temperature Range (Note 5) LTC1922E ........................................... – 40 °C to 85°C LTC1922I ............................................ – 40 °C to 85°C Storage Temperature Range ................. – 65 °C to 125°C Lead Temperature (Soldering, 10 sec).................. 300 °C ORDER PART NUMBER TJMAX = 125°C, θJA = 110°C/W (G) TJMAX = 125°C,θJA = 62°C/W (N) LTC1922EG-1 LTC1922IG-1 LTC1922EN-1 LTC1922IN-1 ABSOLUTE AXI U RATI GS PACKAGE/ORDER I FOR ATIO (Note 1) ELECTRICAL CHARACTERISTICS The q denotes the specifications which apply over the full operating temperature range, otherwise specifications are at VCC = 9.5V, CT = 180pF, TA = TMIN to TMAX unless other wise noted. 1 2 3 4 5 6 7 8 9 10 TOP VIEW G PACKAGE 20-LEAD PLASTIC SSOP 20 19 18 17 16 15 14 13 12 11 SYNC RAMP CS COMP RLEB FB SS PDLY SBUS ADLY CT GND OUTA OUTB OUTC VCC OUTD OUTE OUTF VREF N PACKAGE 20-LEAD PDIP Consult factory for parts specified with wider operating temperature ranges. |
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