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LTC4089EDJC-1 Datasheet(PDF) 4 Page - Linear Technology |
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LTC4089EDJC-1 Datasheet(HTML) 4 Page - Linear Technology |
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4 / 24 page  LTC4089-1 4 40891f SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS Internal Ideal Diode RFWD Incremental Resistance, VON Regulation IBAT = 100mA 125 m RDIO,ON ON Resistance VBAT to VOUT IBAT = 600mA 215 m VFWD Voltage Forward Drop (VBAT - VOUT) IBAT = 5mA IBAT = 100mA IBAT = 600mA ● 10 30 55 160 50 mV mV mV VOFF Diode Disable Battery Voltage 2.8 V IFWD Load Current Limit, for VON Regulation 550 mA ID(MAX) Diode Current Limit 2.2 A External Ideal Diode VFWD, EXT External Diode Forward Voltage 20 mV Logic VOL Output Low Voltage (CHRG, HVPR) ISINK = 5mA ● 0.1 0.4 V VIH Input High Voltage HVEN, SUSP, HPWR Pin Low to High 2.3 V VIL Input Low Voltage HVEN, SUSP, HPWR Pin High to Low 0.3 V IPULLDN Logic Input Pull Down Current SUSP, HPWR 2 µA IHVEN HVEN Pin Bias Current VHVEN = 2.3V VHVEN = 0V 6 0.01 20 0.1 µA µA VCHG,SD Charger Shutdown Threshold Voltage on TIMER ● 0.14 0.4 V ICHG,SD Charger Shutdown Pull-Up Current on TIMER VTIMER = 0V ● 5 14 µA NTC IVNTC VNTC Pin Current VVNTC = 2.5V ● 1.4 2.5 3.5 mA VVNTC VNTC Bias Voltage IVNTC = 500µA ● 4.4 4.85 V INTC NTC Input Leakage Current VNTC = 1V 0 ±1 µA VCOLD Cold Temperature Fault Threshold Voltage Rising Threshold Hysteresis 0.738 • VVNTC 0.018 • VVNTC V V VHOT Hot Temperature Fault Threshold Voltage Falling Threshold Hysteresis 0.326 • VVNTC 0.015 • VVNTC V V VDIS NTC Disable Voltage NTC Input Voltage to GND (Falling) Hysteresis ● 75 100 35 125 mV mV The ● denotes the specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25°C. HVIN = 12V, BOOST = 17V, VIN = 5V, VBAT = 3.7V, HVEN = 12V, HPWR = 5V, RPROG = 100k, RCLPROG = 2k, SUSP = 0V, unless otherwise noted. 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: VCC is the greater of VIN, VOUT or VBAT Note 3: All voltage values are with respect to GND. Note 4: This IC includes over-temperature protection that is intended to protect the device during momentary overload conditions. Junction temperatures will exceed 110°C when over-temperature protection is active. Continuous operation above the specified maximum operating junction temperature may result in device degradation or failure. Note 5: The LTC4089-1 is guaranteed to meet specified performance from 0°C to 85°C and are designed, characterized and expected to meet these extended temperature limits, but is not tested at –40°C and 85°C. Note 6: Guaranteed by long term current density limitations. Note 7: Total input current is equal to this specification plus 1.002 • IBAT where IBAT is the charge current. Note 8: Accuracy of programmed current may degrade for currents greater than 1.5A. Note 9: Current limit guaranteed by design and/or correlation to static test. Slope compensation reduces current limit at high duty cycle. |
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