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LTC4040 Datasheet(PDF) 5 Page - Linear Technology |
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LTC4040 Datasheet(HTML) 5 Page - Linear Technology |
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5 / 26 page  LTC4040 5 4040fa For more information www.linear.com/LTC4040 The l denotes the specifications which apply over the specified operating junction temperature range, otherwise specifications are at TA = 25°C. (Note 3) VIN = 5V, VBAT = 3.6V, RPROG = 2k, unless otherwise noted. elecTrical characTerisTics SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS Open-Drain Output (CHRG, RST, FAULT) Pin Leakage Current V = 5V 1 µA Pin Output Low Voltage I = 5mA 65 mV Overvoltage Protection VOV(CUTOFF) Overvoltage Protection Threshold Rising Threshold, ROVSNS = 6.2k 6.1 6.4 6.7 V VOVGT IGATE Output Voltage Active Input Voltage < VOV(CUTOFF) 1.88 • VOVSNS 12 V VOVGT(LOAD) IGATE Voltage Under Load 5V Through 6.2k Into OVSNS, IIGATE = 1µA 8 8.6 V IOVSNSQ OVSNS Quiescent Current VOVSNS = 5V 40 µA OVSNS Quiescent Current at Shutdown BSTOFF = H, CHGOFF = H 25 µA IGATE Time to Reach Regulation CIGATE = 2.2nF 3.5 ms 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: This IC includes overtemperature protection that is intended to protect the device during momentary overload conditions. Junction temperature will exceed 125°C when overtemperature protection is active. Continuous operation above the specified maximum operating junction temperature may impair device reliability. Note 3: The LTC4040E is tested under pulsed load conditions such that TJ ≈ TA. The LTC4040E is guaranteed to meet performance specifications from 0°C to 85°C junction temperature. Specifications over the –40°C to 125°C operating junction temperature range are assured by design, characterization and correlation with statistical process control. The LTC4040I is guaranteed over the full –40°C to 125°C operating junction temperature range. The junction temperature (TJ in °C) is calculated from the ambient temperature (TA, in °C) and power dissipation (PD, in watts) according to the formula: TJ = TA + (PD • θJA) where the package thermal impedance θJA = 43°C/W. Note that the maximum ambient temperature consistent with these specifications is determined by specific operating conditions in conjunction with board layout, the rated package thermal resistance and other environmental factors. |
Similar Part No. - LTC4040_15 |
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Similar Description - LTC4040_15 |
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