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LTC3892-1 Datasheet(PDF) 8 Page - Linear Technology |
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LTC3892-1 Datasheet(HTML) 8 Page - Linear Technology |
8 / 36 page LTC3892/LTC3892-1 8 38921f For more information www.linear.com/LTC3892 Typical perForMance characTerisTics SENSE Pins Total Input Current vs VSENSE Voltage SENSE– Pin Input Bias Current vs Temperature Foldback Current Limit Maximum Current Sense Threshold vs Duty Cycle Maximum Current Sense Threshold vs ITH Voltage Shutdown (RUN) Threshold vs Temperature DRVCC and EXTVCC vs Load Current EXTVCC Switchover and DRVCC Voltages vs Temperature Undervoltage Lockout Threshold vs Temperature LOAD CURRENT (mA) 0 6.4 5.6 4.8 6 5.2 4.4 6.2 5.4 4.6 5.8 5 4.2 4 150 75 25 125 50 100 3892 G10 EXTVCC = 0V EXTVCC = 8.5V VBIAS = 12V DRVSET = GND EXTVCC = 5V TEMPERATURE (°C) –75 11 10 8 7 5 9 6 4 3892 G11 150 125 25 0 –50 75 100 –25 50 DRVCC (DRVSET = INTVCC) EXTVCC RISING EXTVCC FALLING EXTVCC RISING EXTVCC FALLING DRVCC (DRVSET = 0V) DRVUV = INTVCC DRVUV = GND TEMPERATURE (°C) –75 8 7.5 5.5 4.5 6.5 3.5 3 7 5 6 4 3892 G12 150 125 25 0 –50 75 100 –25 50 RISING FALLING RISING FALLING DRVUV = INTVCC DRVUV = GND VSENSE COMMON MODE VOLTAGE (V) 0 800 700 300 100 500 0 600 200 400 3892 G13 65 60 25 15 5 45 55 10 35 20 40 50 30 TEMPERATURE (°C) –75 900 500 300 700 100 0 800 400 600 200 3892 G14 150 125 25 0 –50 75 100 –25 50 VOUT > INTVCC + 0.5V VOUT < INTVCC – 0.5V FEEDBACK VOLTAGE (mV) 0 100 90 50 30 70 10 0 80 40 60 20 3892 G15 800 400 300 100 600 700 200 500 ILIM = INTVCC ILIM = FLOAT ILIM = GND DUTY CYCLE (%) 0 100 90 50 30 70 10 0 80 40 60 20 3892 G16 100 40 30 10 60 90 80 70 20 50 ILIM = INTVCC ILIM = FLOAT ILIM = GND VITH (V) 0 100 0 –20 –40 80 40 60 20 3892 G17 1.4 0.2 0.6 1.2 1 0.8 0.4 ILIM = INTVCC ILIM = FLOAT ILIM = GND Burst Mode OPERATION 5% DUTY CYCLE PULSE-SKIPPING FORCED CONTINUOUS MODE TEMPERATURE (°C) –75 1.4 1.25 1.15 1.35 1.05 1 1.2 1.3 1.1 3892 G18 150 125 25 0 –50 75 100 –25 50 RISING FALLING |
Similar Part No. - LTC3892-1_15 |
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Similar Description - LTC3892-1_15 |
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