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LTC4002EDD-4.2 Datasheet(PDF) 3 Page - Linear Technology |
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LTC4002EDD-4.2 Datasheet(HTML) 3 Page - Linear Technology |
3 / 16 page LTC4002-4.2 3 400242i ELECTRICAL CHARACTERISTICS The q denotes the specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25°C. VCC = 10V unless otherwise noted. Note 1: Absolute Maximum Rating are those values beyond which the life of a device may be impaired. TYPICAL PERFOR A CE CHARACTERISTICS Supply Current vs Temperature Supply Current vs VCC Oscillator Frequency vs Temperature Note 2: The LTC4002-4.2 is tested with Test Circuit 1. Note 3: The LTC4002-4.2 is tested with Test Circuit 2. TEMPERATURE ( °C) –50 3.5 4.0 25 75 400242 G01 3.0 –25 0 50 100 125 2.5 VCC (V) 5 3 25 400242 G02 2 10 15 20 4 CURRENT MODE TEMPERATURE ( °C) –50 25 400242 G03 500 –25 0 50 450 550 75 100 125 SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS INTC NTC Pin Output Current VNTC = 0.85V q 75 85 95 µA VNTC-HOT NTC Pin Threshold Voltage (Hot) VNTC Falling q 340 355 370 mV Hysteresis 25 mV VNTC-COLD NTC Pin Threshold Voltage (Cold) VNTC Rising q 2.428 2.465 2.502 V Hysteresis 170 mV ∆VRECHRG Recharge Battery Voltage Offset from Full VBAT(FULLCHARGED) – VRECHRG, VBAT Falling 100 150 200 mV Charged Battery Voltage ILEAK CHRG Pin Leakage Current VCHRG = 8V, Charging Stops 1 µA Oscillator fOSC Switching Frequency 450 500 550 kHz DC Maximum Duty Cycle 100 % Gate Drive tr Rise Time CGATE = 2000pF, 10% to 90% 20 ns tf Fall Time CGATE = 2000pF, 90% to 10% 50 ns ∆VGATE Output Clamp Voltage VCC – VGATE, VCC ≥ 9V q 8V ∆VGATEHI Output High Voltage ∆VGATEHI = VCC – VGATE, VCC ≥ 7V q 0.3 V ∆VGATELO Output Low Voltage ∆VGATELO = VCC – VGATE, VCC ≥ 7V q 4.5 V TA = 25°C, VCC = 10V unless otherwise noted. |
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