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LTC4414 Datasheet(PDF) 3 Page - Linear Technology |
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LTC4414 Datasheet(HTML) 3 Page - Linear Technology |
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3 / 12 page  3 LTC4414 4414fc The ● denotes specifications which apply over the full operating temperature range, unless otherwise noted specifications are at TA = 25°C, VIN = 12V, CTL and GND = 0V. Current into a pin is positive and current out of a pin is negative. All voltages are referenced to GND, unless otherwise specified. Note 1: Stresses beyond those listed under Absolute Maximum Ratings may cause permanent damage to the device. Exposure to any Absolute Maximum Rating condition for extended periods may affect device reliability and lifetime. Note 2: The LTC4414E is guaranteed to meet performance specifications from 0 °C to 85°C. Specifications over the –40°C to 85°C operating temperature range are assured by design, characterization and correlation with statistical process controls. The LTC4414I is guaranteed and tested over the –40 ° to 125° operating temperature range. Note 3: This results in the same supply current as would be observed with an external P-channel MOSFET connected to the LTC4414 and operating in forward regulation. Note 4: VIN is held at 12V and GATE is forced to 9V. SENSE is set at 12V to measure the source current at GATE. SENSE is set at 11.9V to measure sink current at GATE. Note 5: V IN is held at 12V and SENSE is stepped from 12.2V to 11.8V to trigger the event. GATE voltage is initially VG(OFF). Note 6: VIN is held at 12V and SENSE is stepped from 11.8V to 12.2V to trigger the event. GATE voltage is initially internally clamped at VG(ON). Note 7: STAT is forced to VIN – 1.5V. SENSE is set at VIN – 0.1V to measure the off current at STAT. SENSE is set VIN + 0.1V to measure the sink current at STAT. Note 8: STAT is forced to 9V and VIN is held at 12V. SENSE is stepped from 11.8V to 12.2V to measure the STAT turn-on time defined when ISTAT reaches one half the measured IS(SNK). SENSE is stepped from 12.2V to 11.8V to measure the STAT turn-off time defined when ISTAT reaches one half the measured IS(SNK) . SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS GATE and STAT Outputs GATE Active Forward Regulation (Note 4) IG(SRC) Source Current –25 –7 µA IG(SNK) Sink Current 190 500 µA VG(ON) GATE Clamp Voltage Apply IGATE = 6µA, VIN = 12V, 8 9 V VSENSE = 11.9V, Measure VIN – VGATE VG(OFF) GATE Off Voltage Apply IGATE = –30µA, VIN = 12V, 0.35 0.92 V VSENSE = 12.1V, Measure VSENSE – VGATE tG(ON) GATE Turn-On Time VGS < –6V, CGATE = 17nF (Note 5) 600 µs tG(OFF) GATE Turn-Off Time VGS > –1.5V, CGATE = 17nF (Note 6) 20 µs IS(OFF) STAT Off Current 3V ≤ VIN ≤ 36V (Note 7) ● –1 0 1 µA IS(SNK) STAT Sink Current 12V ≤ VIN ≤ 36V (Note 7) ● 50 200 µA tS(ON) STAT Turn-On Time (Note 8) 8 µs tS(OFF) STAT Turn-Off Time (Note 8) 51 µs CTL Input VIL CTL Input Low Voltage 3V ≤ VIN ≤ 36V ● 0.35 V VIH CTL Input High Voltage 3V ≤ VIN ≤ 36V ● 0.9 V ICTL CTL Input Pull-Down Current 0.35V ≤ VCTL ≤ 36V 1 3.5 5.9 µA HCTL CTL Hysteresis 3V ≤ VIN ≤ 36V 170 mV ELECTRICAL CHARACTERISTICS |
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