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LTC3576EUFE-1-TRPBF Datasheet(PDF) 4 Page - Linear Technology |
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LTC3576EUFE-1-TRPBF Datasheet(HTML) 4 Page - Linear Technology |
4 / 48 page LTC3576/LTC3576-1 4 3576f ELECTRICAL CHARACTERISTICS The l denotes the specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25°C. VBUS = 5V, BAT = 3.8V, DVCC = 3.3V, RCLPROG = 3.01k, unless otherwise noted. SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS Overvoltage Protection VOVCUTOFF Overvoltage Protection Threshold With 6.2k Series Resistor 6.1 6.35 6.7 V VOVGATE OVGATE Output Voltage VOVSENS < VOVCUTOFF VOVSENS > VOVCUTOFF 1.88•VOVSENS 0 12 V V tRISE OVGATE Time to Reach Regulation OVGATE CLOAD = 1nF 1.25 ms Battery Charger VFLOAT BAT Regulated Output Voltage LTC3576 l 4.179 4.165 4.200 4.200 4.221 4.235 V V LTC3576-1 l 4.079 4.065 4.100 4.100 4.121 4.135 V V ICHG Constant Current Mode Charger Current RPROG = 1k RPROG = 5k 980 185 1030 206 1065 223 mA mA IBAT Battery Drain Current VBUS > VUVLO, Suspend Mode, IVOUT = 0μA 3.6 6 μA VBUS = 0V, IVOUT = 0μA (Ideal Diode Mode) 28 45 μA VPROG PROG Pin Servo Voltage 1.000 V VPROG_TRKL PROG Pin Servo Voltage in Trickle Charge BAT < VTRKL 0.100 V VC/10 C/10 Threshold Voltage at PROG 100 mV hPROG Ratio of IBAT to PROG Pin Current 1030 mA/mA ITRKL Trickle Charge Current BAT < VTRKL, RPROG = 1k 100 mA VTRKL Trickle Charge Threshold Voltage BAT Rising 2.7 2.85 3.0 V ΔVTRKL Trickle Charge Hysteresis Voltage 135 mV ΔVRECHRG Recharge Battery Threshold Voltage Threshold Voltage Relative to VFLOAT –75 –100 –125 mV tTERM Safety Timer Termination Period Timer Starts When VBAT = VFLOAT 3.3 4 5 Hour tBADBAT Bad Battery Termination Time BAT < VTRKL 0.4 0.5 0.6 Hour hC/10 End of Charge Current Ratio (Note 7) 0.085 0.1 0.112 mA/mA VCHRG CHRG Pin Output Low Voltage ICHRG = 5mA 65 100 mV ICHRG CHRG Pin Leakage Current VCHRG = 5V 1 μA RON_CHG Battery Charger Power FET On- Resistance (Between VOUT and BAT) 0.18 Ω TLIM Junction Temperature in Constant Temperature Mode 110 °C NTC VCOLD Cold Temperature Fault Threshold Voltage Rising Threshold Hysteresis 75 76.5 1.5 78 %NTCBIAS %NTCBIAS VHOT Hot Temperature Fault Threshold Voltage Falling Threshold Hysteresis 33.4 34.9 1.5 36.4 %NTCBIAS %NTCBIAS VDIS NTC Disable Threshold Voltage Falling Threshold Hysteresis 0.7 1.7 50 2.7 %NTCBIAS mV INTC NTC Leakage Current NTC = NTCBIAS = 5V –50 50 nA Ideal Diode VFWD Forward Voltage IVOUT = 10mA 15 mV RDROPOUT Internal Diode On-Resistance Dropout IVOUT = 200mA 0.18 Ω IMAX_DIODE Diode Current Limit 2 A |
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