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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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LT1725 датащи(PDF) 2 Page - Linear Technology |
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LT1725 датащи(HTML) 2 Page - Linear Technology |
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2 / 28 page  2 LT1725 1725fa (Note 1) VCC Supply Voltage ................................................. 22V UVLO Pin Voltage .................................................... VCC ISENSE Pin Voltage .................................................... 2V FB Pin Current ..................................................... ±2mA Operating Junction Temperature Range LT1725C .............................................. 0 °C to 100°C LT1725I ........................................... –40 °C TO 125°C Storage Temperature Range ................ – 65 °C to 150°C Lead Temperature (Soldering, 10 sec)................ 300 °C PACKAGE/ORDER I FOR ATIO ABSOLUTE AXI U RATI GS The ● denotes specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25°C. VCC = 14V, GATE open, VC = 1.4V unless otherwise noted. ELECTRICAL CHARACTERISTICS SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS Power Supply VCC VCC Turn-On Voltage ● 14.0 15.1 16.0 V VCC Turn-Off Voltage ● 8 9.7 11 V VCC Hysteresis (Note 3) (VTURN-ON – VTURN-OFF) ● 4.0 5.4 6.5 V ICC Supply Current VC = Open ● 610 15 mA Start-Up Current ● 120 280 µA Feedback Amplifier VFB Feedback Voltage 1.230 1.245 1.260 V ● 1.220 1.270 V IFB Feedback Pin Input Current 500 nA gm Feedback Amplifier Transconductance ∆lC = ±10µA ● 400 1000 1800 µmho ISRC, ISNK Feedback Amplifier Source or Sink Current ● 30 50 80 µA VCL Feedback Amplifier Clamp Voltage 2.5 V Reference Voltage/Current Line Regulation 12V ≤ VIN ≤ 18V ● 0.01 0.05 %/V Voltage Gain VC = 1V to 2V 2000 V/V Soft-Start Charging Current VSFST = 0V 25 40 50 µA Soft-Start Discharge Current VSFST = 1.5V, VUVLO = 0V 0.8 1.5 mA ORDER PART NUMBER Consult LTC Marketing for parts specified with wider operating temperature ranges. Order Options Tape and Reel: Add #TR Lead Free: Add #PBF Lead Free Tape and Reel: Add #TRPBF Lead Free Part Marking: http://www.linear.com/leadfree/ LT1725CGN LT1725IGN LT1725CS LT1725IS TJMAX = 125°C, θJA = 110°C/W (GN) TJMAX = 125°C, θJA = 100°C/W (SO) TOP VIEW S PACKAGE 16-LEAD PLASTIC SO GN PACKAGE 16-LEAD PLASTIC SSOP 1 2 3 4 5 6 7 8 16 15 14 13 12 11 10 9 PGND ISENSE SFST ROCMP RCMPC OSCAP VC FB GATE VCC tON ENDLY MINENAB SGND UVLO 3VOUT 1725 1725I GN PART MARKING |
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