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LTC4064 Datasheet(PDF) 3 Page - Linear Technology |
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LTC4064 Datasheet(HTML) 3 Page - Linear Technology |
3 / 16 page LTC4064 3 sn4064 4064fs Note 1: Absolute Maximum Ratings are those values beyond which the life of a device may be impaired. Note 2: The Absolute Maximum BAT Current Rating of 1.3A is guaranteed by design and current density calculations. The Absolute Maximum PROG Current Rating is guaranteed to be 1/1000 of BAT current rating by design. Note 3: The LTC4064 is guaranteed to meet performance specifications from 0°C to 70°C. Specifications over the –40°C to 85°C operating SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS VPROG PROG Pin Voltage RPROG = 3k, IPROG = 500µA 1.5 V ICHRG CHRG Pin Weak Pulldown Current VCHRG = 1V 15 30 50 µA VCHRG CHRG Pin Output Low Voltage ICHRG = 5mA 0.35 0.6 V VACPR ACPR Pin Output Low Voltage IACPR = 5mA 0.35 0.6 V VFAULT FAULT Pin Output Low Voltage IFAULT = 5mA 0.35 0.6 V IC/10 End of Charge Indication Current Level RPROG = 3k 44 50 56 mA tTIMER TIMER Accuracy CTIMER = 0.1µF10 % ∆VRECHRG Recharge Threshold Voltage VFLOAT - VRECHRG, VBAT > VTRIKL ● 65 100 135 mV Charge Termination Timer Expired VNTC-HOT NTC Pin Hot Threshold Voltage VNTC Falling 2.5 V VHOT-HYS NTC Pin Hot Hysteresis Voltage 80 mV VNTC-COLD NTC Pin Cold Threshold Voltage VNTC Rising 4.375 V VCOLD-HYS NTC Pin Cold Hystersis Voltage 80 mV VNTC-DIS NTC Pin Disable Threshold Voltage VNTC Rising 100 mV VDIS-HYS NTC Pin Disable Hystersis Voltage 10 mV TLIM Junction Temperature in 105 °C Constant-Temperature Mode RON Power MOSFET “ON” Resistance 375 mΩ temperature range are assured by design, characterization and correlation with statistical process controls. Note 4: Failure to solder the exposed backside of the package to the PC board will result in a thermal resistance much higher than 40°C/W. Note 5: Supply current includes PROG pin current (approximately 50µA) but does not include any current delivered to the battery through the BAT pin (approximately 50mA). ELECTRICAL CHARACTERISTICS The ● denotes the specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25°C. VCC = 5V |
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