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LTC4075 Datasheet(PDF) 3 Page - Linear Technology |
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LTC4075 Datasheet(HTML) 3 Page - Linear Technology |
3 / 16 page LTC4075/LTC4075X 3 4075Xf SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS VASD-DC VDCIN – VBAT Lockout Threshold VDCIN from Low to High, VBAT = 4.2V 140 180 220 mV VDCIN from High to Low, VBAT = 4.2V 20 50 80 mV VASD-USB VUSBIN – VBAT Lockout Threshold VUSBIN from Low to High 140 180 220 mV VUSBIN from High to Low 20 50 80 mV VENABLE ENABLE Input Threshold Voltage 0.4 0.7 1 V RENABLE ENABLE Pulldown Resistance ● 1.2 2 5 MΩ V⎯C⎯H⎯R⎯G ⎯C⎯H⎯R⎯G Output Low Voltage I⎯C⎯H⎯R⎯G = 5mA 0.35 0.6 V V⎯P⎯W⎯R ⎯P⎯W⎯R Output Low Voltage I⎯P⎯W⎯R = 5mA 0.35 0.6 V VUSBPWR USBPWR Output Low Voltage IUSBPWR = 300µA 0.35 0.6 V ΔVRECHRG Recharge Battery Threshold VFLOAT – VRECHRG, 0°C < TA < 85°C 65 100 135 mV tRECHRG Recharge Comparator Filter Time VBAT from High to Low 3 6 9 ms tTERMINATE Termination Comparator Filter Time IBAT Drops Below Termination Threshold 0.8 1.5 2.2 ms tSS Soft-Start Time IBAT = 0 to Full-Scale 175 250 325 µs RON-DC Power FET “ON” Resistance 400 mΩ (Between DCIN and BAT) RON-USB Power FET “ON” Resistance 550 mΩ (Between USBIN and BAT) TLIM Junction Temperature in 105 °C Constant-Temperature Mode The ● denotes the specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25°C. VDCIN = 5V, VUSBIN = 5V unless otherwise noted. Note 1: Absolute Maximum Ratings are those values beyond which the life of a device may be impaired. Note 2: The LTC4075E/LTC4075XE are guaranteed to meet the performance specifications from 0°C to 70°C. Specifications over the – 40°C to 85°C operating temperature range are assured by design, characterization and correlation with statistical process controls. Note 3: Failure to correctly solder the exposed backside of the package to the PC board will result in a thermal resistance much higher than 40°C/W. See Thermal Considerations. Note 4: Supply current includes IDC and ITERM pin current (approximately 100µA each) but does not include any current delivered to the battery through the BAT pin. Note 5: Supply current includes IUSB and ITERM pin current (approximately 100µA each) but does not include any current delivered to the battery through the BAT pin. Note 6: This parameter is not applicable to the LTC4075X. Note 7: Guaranteed by long term current density limitations. ELECTRICAL CHARACTERISTICS |
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Similar Description - LTC4075 |
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