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LTC4067EDE Datasheet(PDF) 4 Page - Linear Technology |
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LTC4067EDE Datasheet(HTML) 4 Page - Linear Technology |
4 / 20 page LTC4067 4 4067f The ● denotes the specifications which apply over the full operating temperature range (Note 3), otherwise specifications are at TA = 25°C. Note 2 unless otherwise noted, VIN = 5V, VBAT = 3.7V, VILIM0 = 0V, VILIM1 = 0V, RPROG = 2k, RCLPROG = 2k, VOVI = 0V, VNTC = VIN/2. ELECTRICAL CHARACTERISTICS 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: Current into a pin is positive and current out of a pin is negative. All Voltages referenced to GND Note 3: The LTC4067 is guaranteed to meet performance specifications from 0°C to 85°C. Specifications over the –40°C to 85°C ambient operating temperature range are assured by design, characterization and correlation with statistical process controls. Note 4: Specification is guaranteed by design and not 100% tested in production. SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS NTC INTC NTC Input Leakage Current VNTC = 2.5V 0 ±1 μA VCOLD Cold Temperature Fault Threshold Voltage Rising Threshold Hysteresis 0.725 • VIN 0.733 • VIN 0.02 • VIN 0.741 • VIN V V VHOT Hot Temperature Fault Threshold Voltage Falling Threshold Hysteresis 0.287 • VIN 0.29 • VIN 0.02 • VIN 0.293 • VIN V V VDIS NTC Disable Voltage NTC Input voltage to GND (Falling) Hysteresis ● 80 100 30 120 mV mV Logic FMOD Serrated Fault Pulse Modulation Frequency at ⎯C⎯H⎯R⎯G Pin (VDIS < VNTC < VHOT) or (VNTC > VCOLD) VBAT < 2.9V for Longer Than Trickle Charge Time 1.5 6 Hz Hz FPW Serrated Fault Pulse Width at ⎯C⎯H⎯R⎯G Pin (VDIS < VNTC < VHOT) or (VNTC > VCOLD) VBAT < 2.9V for Longer Than Trickle Charge Time 1.33 2.62 μs μs FTF Serrated Fault Pulse Frequency at ⎯C⎯H⎯R⎯G Pin (VDIS < VNTC < VHOT) or (VNTC > VCOLD) or VBAT < 2.9V for Longer Than Trickle Charge Time 35 kHz VOL Output Low Voltage (⎯C⎯H⎯R⎯G) ISINK = 5mA ● 1.5 V VIH Enable Input High Voltage ILIM0, ILIM1 Pin Low to High ● 1.2 V VlL Enable Input Low Voltage ILIM0, ILIM1 Pin High to Low ● 0.4 V IPULLDN Logic Input Pull Down Current ILIM0, ILIM1 2 μA VOVTH Overvoltage Protection Threshold (OVI Pin) VOVI Rising Threshold Hysteresis 5.8 6 250 6.2 V mV VPROG,SD Shutdown Threshold VCC – VPROG Rising (Note 6) Hysteresis 1.4 50 V mV IPROG,PULLUP PROG Pin Shutdown Sense Current VPROG = 1V 3.5 μA Note 5: This IC includes over-temperature protection that is intended to protect the device during momentary overload conditions. Junction temperature exceeds 125°C when over-temperature protection is active. Continuous operation above the specified maximum operating junction temperature may result in device degradation or failure. Note 6: VCC is the greater of VIN, VOUT or VBAT. Note 7: Accuracy of programmed current may degrade for currents greater than 1A. Note 8: CLPROG soft-start scales with inverse of CLPROG resistor. If RCLPROG = 2k, then ISS = 0.6mA/μs. |
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