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LTC4066 Datasheet(PDF) 3 Page - Linear Technology |
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LTC4066 Datasheet(HTML) 3 Page - Linear Technology |
3 / 28 page LTC4066/LTC4066-1 3 4066fc ELECTRICAL CHARACTERISTICS The l denotes the specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25°C. VIN = 5V, VBAT = 3.7V, HPWR = 5V, WALL = 0V, RPROG = 100k, RCLPROG = RISTAT = 2k, unless otherwise noted. SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS VIN Input Supply Voltage IN and OUT l 4.35 5.5 V VBAT Input Voltage BAT l 4.3 V IIN Input Supply Current IBAT = IISTAT = 0 (Note 8) Suspend Mode; SUSP = 2V Suspend Mode; SUSP = 2V, Wall = 2V, VOUT = 4.8V Shutdown; SHDN = 2V l l l l 0.5 50 50 10 1.2 100 100 20 mA μA μA μA IOUT Output Supply Current VOUT = 5V, VIN = 0V, VBAT = 4.3V, TIMER = 0V l 400 800 μA BAT Battery Drain Current VBAT = 4.3V, Charging Stopped Suspend Mode; SUSP = 2V Shutdown; SHDN = 2V VIN = 0V, BAT Powers OUT, No Load l l l l 15 15 2.5 55 27 27 5 100 μA μA μA μA IIN(MAX) Maximum Input Current Limit (Note 9) 1.9 2.6 A VUVLO Input or Output Undervoltage Lockout VIN Powers Part, Rising Threshold VOUT Powers Part, Rising Threshold l l 3.6 3.6 3.8 3.8 4 4 V V ΔVUVLO Input or Output Undervoltage Lockout VIN Rising – VIN Falling or VOUT Rising – VOUT Falling 125 mV Current Limit ILIM Current Limit RCLPROG = 2k, HPWR = 5V RCLPROG = 2k, HPWR = 0V l l 475 90 500 100 525 110 mA mA RON ON Resistance VIN to VOUT HPWR = 5V, 400mA Load HPWR = 0V, 80mA Load 0.16 0.16 Ω Ω VCLPROG CLPROG Pin Voltage RCLPROG = 2k RCLPROG = 1k l 0.980 0.980 1.000 1.000 1.020 1.020 V V ISS Soft-Start Inrush Current IN or OUT 10 mA/μs VALEN Automatic Current Limit Enable Threshold Voltage (VIN – VOUT) VIN Rising (VIN – VOUT) VIN Falling 25 –85 50 –60 75 –25 mV mV Battery Charger VFLOAT Regulated Output Voltage (0°C to 85°C), IBAT = 2mA IBAT = 2mA l 4.165 4.158 4.200 4.200 4.235 4.242 V V (0°C to 85°C), IBAT = 2mA (LTC4066-1) IBAT = 2mA (LTC4066-1) l 4.066 4.059 4.100 4.100 4.134 4.141 V V IBAT Current Mode Charge Current RPROG = 100k, No Load RPROG = 50k, No Load l l 460 920 500 1000 540 1080 mA mA IBAT(MAX) Maximum Charge Current (Note 9) 1.5 A VPROG PROG Pin Voltage RPROG = 100k RPROG = 50k l l 0.980 0.980 1.000 1.000 1.020 1.020 V V kISTAT Ratio of IBAT (Charging) to ISTAT Pin Current IBAT = 50mA IBAT = 100mA IBAT = 500mA IBAT = 1000mA l l l l 875 900 925 950 1000 1000 1000 1000 1125 1100 1075 1050 mA/mA mA/mA mA/mA mA/mA VEOC End-of-Charge ISTAT Pin Voltage VBAT = VFLOAT (4.2V, 4.1V for LTC4066-1) l 94 100 106 mV ITRIKL Trickle Charge Current VBAT = 2V, RPROG = 100k 35 50 60 mA VTRIKL Trickle Charge Threshold Voltage l 2.8 2.9 3 V VCEN Charger Enable Threshold Voltage (VOUT – VBAT) High to Low, VBAT = 4V (VOUT – VBAT) Low to High, VBAT = 4V 60 90 mV mV VRECHRG Recharge Battery Threshold Voltage VFLOAT – VRECHRG l 60 100 130 mV tTIMER TIMER Accuracy VBAT = 4.2V (4.1V for LTC4066-1) –10 10 % Recharge Time Percent of Total Charge Time 50 % Low-Battery Trickle Charge Time Percent of Total Charge Time, VBAT < 2.8V 25 % |
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