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LTC4089EDJC-5 Datasheet(PDF) 3 Page - Linear Technology |
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LTC4089EDJC-5 Datasheet(HTML) 3 Page - Linear Technology |
3 / 24 page LTC4089/LTC4089-5 3 40895fb SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS VUVLO Input Undervoltage Lockout VIN Powers Part, Rising Threshold ● 3.6 3.8 4 V dVUVLO Input Undervoltage Lockout Hysteresis VIN Rising – VIN Falling 130 mV High Voltage Regulator VHVIN HVIN Supply Voltage 6 36 V IHVIN HVIN Bias Current Not Switching Shutdown; HVEN = 0V 1.9 0.01 2.5 2 mA µA VOUT Output Voltage with HVIN Present Assumes HVOUT to OUT Connection (LTC4089) Assumes HVOUT to OUT Connection (LTC4089-5) ● 3.45 4.85 VBAT+0.3 5 4.6 5.15 V V VHVUVLO High Voltage Input Undervoltage Lockout VHVIN Rising 4.7 5 V fSW Switching Frequency VHVOUT > 3.95V VHVOUT = 0V 685 750 35 815 kHz kHz DCMAX Maximum Duty Cycle ● 88 95 % ISW(MAX) Switch Current Limit (Note 9) 1.5 1.95 2.3 A VSAT Switch VCESAT ISW = 1A 330 mV ILK Switch Leakage Current 2µA VSWD Minimum Boost Voltage Above SW ISW = 1A 1.85 2.2 V IBST BOOST Pin Current ISW = 1A 30 50 mA Battery Management VBAT Input Voltage BAT 4.3 V IBAT Battery Drain Current VBAT = 4.3V, Charging Stopped Suspend Mode; SUSP = 5V VHVIN = VIN = 0V, BAT Powers OUT, No Load ● ● ● 15 22 60 27 35 100 µA µA µA VFLOAT Regulated Output Voltage IBAT = 2mA IBAT = 2mA; (0°C – 85°C) 4.165 4.158 4.200 4.200 4.235 4.242 V V ICHG Current Mode Charge Current RPROG = 100k, No Load RPROG = 50k, No Load; (0°C – 85°C) ● 465 900 500 1000 535 1080 mA mA ICHG(MAX) Maximum Charge Current (Note 8) 1.2 A VPROG PROG Pin Voltage RPROG = 100k RPROG = 50k ● ● 0.98 0.98 1.00 1.00 1.02 1.02 V V kEOC Ratio of End-of-Charge Current to Charge Current VBAT = VFLOAT (4.2V) ● 0.085 0.1 0.11 mA/mA ITRIKL Trickle Charge Current VBAT = 2V, RPROG = 100k 35 50 60 mA VTRIKL Trickle Charge Threshold Voltage ● 2.75 2.9 3 V VCEN Charger Enable Threshold Voltage (VOUT – VBAT) Falling; VBAT = 4V (VOUT – VBAT) Rising; VBAT = 4V 55 80 mV mV VRECHRG Recharge Battery Threshold Voltage VFLOAT - VRECHRG ● 65 100 135 mV tTIMER TIMER Accuracy VBAT = 4.3V –10 10 % Recharge Time Percent of Total Charge Time 50 % Low Battery Trickle Charge Time Percent of Total Charge Time, VBAT < 2.8V 25 % TLIM Junction Temperature in Constant Temperature Mode 105 °C 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 |
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