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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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LTC4241IGN датащи(PDF) 3 Page - Linear Technology |
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LTC4241IGN датащи(HTML) 3 Page - Linear Technology |
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3 / 16 page  LTC4241 3 sn4241 4241f Note 1: Absolute Maximum Ratings are those values beyond which the life of a device may be impaired. Note 2 : All currents into device pins are positive; all currents out of device pins are negative. All voltages are referenced to ground unless otherwise specified. SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS ∆VGATE External Gate Voltage (V12VIN – VGATE) q 100 200 mV VDROP Internal Switch Voltage Drop (V12VIN – V12VOUT), I12VOUT = 500mA q 200 600 mV (VEEOUT – VVEEIN), IVEEIN = 100mA q 120 250 mV ICL(12) Current Limit 12VIN = 12V, 12VOUT = 0V, TIMER = GND q –50 –300 –575 mA 12VIN = 12V, 12VOUT = 11V, TIMER = GND q –525 –850 –1500 mA ICL(VEE) Current Limit VEEIN = –12V, VEEOUT = 0V, TIMER = GND q 50 200 425 mA VEEIN = –12V, VEEOUT = –11V, TIMER = GND q 250 450 750 mA TTS Thermal Shutdown Temperature 150 °C VPG(TH) Power Good Threshold Voltage V12VOUT Rising q 10.8 11.1 11.4 V VVEEOUT Falling q –10.2 –10.5 –10.8 V V3VOUT Rising q 2.8 2.9 3.0 V V5VOUT Rising q 4.5 4.65 4.78 V VPGH Power Good Hysteresis 3VOUT 20 mV 5VOUT 30 mV 12VOUT, VEEOUT 50 mV VIL Input Low Voltage ON, AUXON q 0.8 V VIH Input High Voltage ON, AUXON q 2V VOL Output Low Voltage FAULT, PWRGD , IOL = 3mA q 0.4 V IIN AUXON Pin Input Current AUXON = GND q ±0.08 ±10 µA AUXON = VAUXIN q ±0.08 ±10 µA ON Pin Input Current ON = GND q ±0.08 ±10 µA ON = V12VIN q ±0.08 ±10 µA 5VSENSE Input Current 5VSENSE = 5V q 50 100 µA 3VSENSE Input Current 3VSENSE = 3V q 50 100 µA 5VIN Input Current 5VIN = 5V q 580 900 µA 3VIN Input Current 3VIN = 3V q 310 550 µA 5VOUT Input Current 5VOUT = 5V, ON = V12VIN q 260 500 µA 3VOUT Input Current 3VOUT = 3V, ON = V12VIN q 150 350 µA RDIS 5VOUT Discharge Impedance ON = GND 60 Ω 3VOUT Discharge Impedance ON = GND 50 Ω 12VOUT Discharge Impedance ON = GND 450 Ω VEEOUT Discharge Impedance ON = GND 1600 Ω ITIMER TIMER Pin Current Timer On, VTIMER = GND, q –15 –22 –27 µA Timer Off, VTIMER = 5V, 45 mA VTIMER TIMER Threshold Voltage (V12VIN – VTIMER) q 0.5 0.9 1.3 V VAUXCB Circuit Breaker Trip Voltage (VAUXIN – VAUXSENSE) q 40 50 60 mV IAUXGATE AUXGATE Gate Output Current AUXON High, FAULT High, VAUXGATE = GND q –6 –10 –14 µA AUXON Low, FAULT High, VAUXGATE = 5V 200 µA AUXON High, FAULT Low, VAUXGATE = 10V 50 mA ∆VAUXGATE External AUXGATE Gate Voltage (VAUXGATE – VAUXIN), VAUXIN = 3.3V q 58 11 V Note 3 : An internal zener on the AUXGATE pin clamps the charge pump voltage to a typical maximum operating voltage of 12V. External overdrive of the AUXGATE pin beyond the internal zener voltage may damage the device. DC ELECTRICAL CHARACTERISTICS The q denotes the specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25°C. V12VIN = 12V, VVEEIN = –12V, V3VIN = 3.3V, V5VIN = 5V, VAUXIN = 3.3V. (Note 2) |
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