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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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LTC1957-1 датащи(PDF) 2 Page - Linear Technology |
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LTC1957-1 датащи(HTML) 2 Page - Linear Technology |
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2 / 16 page  2 LTC1957-1/LTC1957-2 VIN to GND ............................................... –0.3V to 6.5V VPCA, VPCB Voltage ..................................... – 0.3V to 3V PCTL Voltage ............................... – 0.3V to (VIN + 0.3V) RF Voltage ........................................ (VIN – 2.2V) to 7V IVCC, Continuous ....................................................... 1A IVCC, 12.5% Duty Cycle .......................................... 2.5A SHDN, TXEN, BSEL Voltage to GND ............................ – 0.3V to (VIN + 0.3V) ORDER PART NUMBER MS10 PART MARKING LTC1957-2EMS LTRJ TJMAX = 125°C, θJA = 160°C/W 1 2 3 4 5 VIN RF SHDN BSEL GND 10 9 8 7 6 VCC VPCA VPCB TXEN PCTL TOP VIEW MS10 PACKAGE 10-LEAD PLASTIC MSOP IVPCA/B, 25% Duty Cycle ...................................... 20mA Operating Temperature Range (Note 2) . – 30 °C to 85°C Storage Temperature Range ................ – 65 °C to 150°C Maximum Junction Temperature ........................ 125 °C Lead Temperature (Soldering, 10 sec)................ 300 °C (Note 1) ORDER PART NUMBER MS8 PART MARKING LTC1957-1EMS8 LTRH The q denotes specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25°C. VIN = 3.6V, SHDN = TXEN = HI, unless otherwise noted. PARAMETER CONDITIONS MIN TYP MAX UNITS VIN Operating Voltage q 2.7 6 V IVIN Shutdown Current SHDN = LO, TXEN = LO, BSEL = LO q 1 µA IVIN Autozero Current SHDN = HI, TXEN = LO q 1 1.6 mA IVIN Operating Current SHDN = HI, TXEN = HI, IVPCA = IVPCB = 0mA, VPCA/B = HI 1.1 1.7 mA IVCC Current Limit 2.2 A VIN to VCC Resistance SHDN = LO, TXEN = LO 90 150 m Ω VPCA/B VOL TXEN = HI, Open Loop, PCTL = –100mV q 0 0.1 V VPCA/B Dropout Voltage ILOAD = 5.5mA, VIN = 2.7V q VIN – 0.28 V VPCA/B Voltage Clamp RLOAD = 400Ω, PCTL = 2V, External Gain = 0.417 q 2.7 2.85 3.0 V VPCA/B Output Current VPCA/B = 2.4V, VIN = 2.7V q 5.5 9 mA VPCA/B = 2.6V, VIN = 3V q 6.0 10 mA VPCA/B Enable Time VPCTL = 2V Step, CLOAD = 100pF (Note 5) q 440 650 ns VPCA/B Bandwidth CLOAD = 100pF, RLOAD = 400Ω (Note 8) q 280 370 500 kHz VPCA/B Load Capacitance (Note 6) 100 pF VPCA/B Slew Rate VPCTL = 2V Step, CLOAD = 100pF (Note 3) q 1.2 2.2 V/ µs VPCA/B Droop VIN = 2.7V, VPCTL = 2V Step ±1 µV/ms VPCA/B TXEN Start Voltage Open Loop, TXEN Low to High, CLOAD = 100pF (Note 9) 500 600 700 mV TJMAX = 125°C, θJA = 160°C/W 1 2 3 4 VIN RF SHDN GND 8 7 6 5 VCC VPCA TXEN PCTL TOP VIEW MS8 PACKAGE 8-LEAD PLASTIC MSOP ABSOLUTE AXI U RATI GS PACKAGE/ORDER I FOR ATIO ELECTRICAL CHARACTERISTICS Consult LTC Marketing for parts specified with wider operating temperature ranges. |
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