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LTC4062 Datasheet(PDF) 3 Page - Linear Technology |
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LTC4062 Datasheet(HTML) 3 Page - Linear Technology |
3 / 20 page LTC4062 3 4062fb ELECTRICAL CHARACTERISTICS The ● denotes specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25°C. VCC = 5V, unless otherwise noted. 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 LTC4062 is guaranteed to meet 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 pad of the package to the PC board will result in a thermal resistance much higher than 40 °C/W. Note 4: Supply current includes PROG pin current and IDET pin current (approximately 100 µA each) but does not include any current delivered to the battery through the BAT pin (approximately 100mA). Note 5: This IC includes overtemperature protection that is intended to protect the device during momentary overload conditions. Overtemperature protection will become active at a junction temperature greater than the maximum operating temperature. Continuous operation above the specified maximum operating junction temperature may impair device reliability. SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS VEN EN Input Threshold Voltage EN Rising, 4.3V < VCC < 8V 0.4 0.7 1 V Hysteresis 70 mV VCT Charge Termination Mode Threshold VTIMER from High to Low 0.4 0.7 1 V Voltage Hysteresis 50 mV VUT User Termination Mode Threshold VTIMER from Low to High 3.9 4.2 V Voltage Hysteresis 50 mV IDETECT Charge Current Detection Threshold RDET = 1k, 0 ≤ TA ≤ 85°C 90 100 110 mA RDET = 2k, 0 ≤ TA ≤ 85°C45 50 55 mA RDET = 10k, 0 ≤ TA ≤ 85°C8 10 12 mA RDET = 20k, 0 ≤ TA ≤ 85°C 3.8 5 6.2 mA ∆VRECHRG Recharge Threshold Voltage VFLOAT – VRECHRG, 0 ≤ TA ≤ 85°C 65 100 135 mV tSS Soft-Start Time IBAT from 0 to ICHG 100 µs tTERM Termination Comparator Filter Time Current Termination Mode 0.8 1.5 2.5 ms tRECHRG Recharge Comparator Filter Time 3 7 14 ms tTIMER Charge Cycle Time CTIMER = 0.1µF 2.55 3 3.45 hr RC/5 C/5 Pin Pull-Down Resistor ● 2 3.4 5 M Ω VC/5 C/5 Input Threshold Voltage C/5 Rising, 4.3V < VCC < 8V 0.4 0.7 1 V Hysteresis 70 mV TLIM Junction Temperature in Constant 105 °C Temperature Mode RON Power FET “ON” Resistance VBAT = 3.85V, ICC = 175mA, RPROG = 2k 375 m Ω (Between VCC and BAT) Comparator VIN+ IN+ Pin Threshold Voltage VIN+ Falling ● 0.988 1 1.012 V Hysteresis 50 mV VBAT-MIN Minimum VBAT Supply Voltage for the VCC = 0V, VBAT Falling 2.4 2.5 2.6 V Low Power Comparator Hysteresis 100 mV IBAT Supply Current for the Low Power VCC = 0V, VBAT = 2.5V 7 9 13 µA Comparator |
Similar Part No. - LTC4062_15 |
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Similar Description - LTC4062_15 |
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