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LTC4015 Datasheet(PDF) 4 Page - Linear Technology |
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LTC4015 Datasheet(HTML) 4 Page - Linear Technology |
4 / 76 page LTC4015 4 4015f For more information www.linear.com/LTC4015 electricAl chArActeristics SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS VIN Input Supply Voltage Note 8 l 3.1 35 V VBAT Battery Voltage Note 8 l 35 V VCHARGE(TOL) Charge Voltage, Regulated Battery per Cell Tolerance, All Chemistries Li-Ion ,4.2V per Cell; LiFePO4 3.6V per Cell; Lead-Acid 2.2V per Cell l –1.25 1.25 % Regulated Battery Charge Current Tolerance Full-Scale VCSP–CSN/RSNSB l –2.0 2.0 % VSYS SYS Pin Voltage Note 8 l 3.05 35 V Quiescent Current IQ = IVIN + ICLP + ICLN + ISYS + ISW + ICSP + ICSN + IBATSENS Battery Discharge Current (No Input Supply, Coulomb Counter Disabled) Battery Only, Telemetry Inactive l 112 325 µA Battery Only, Telemetry Active 1% Duty Cycle l 140 364 µA Battery Only, Telemetry Active Continuously 2.84 mA IQ, Charging Charging, Switcher Suspended 3.00 mA Charging, VBAT > VCHARGE (Note 7) 4.10 mA IQ, Ship Mode Ship Mode (VIN = 0) l 5 40 µA IVin VIN Pin Current Battery Only (No Input Supply) –200 200 nA Charging <140 µA ISYS SYS Pin Current Battery Only, Telemetry Off 100 µA Battery Only, Telemetry On 2.75 mA Charging, VBAT > VCHARGE (Note 7) 3.65 mA VIN_DUVLO VIN to VBATSENS Differential Undervoltage (Must Be Satisfied for Charging) Rising Threshold Hysteresis l 140 200 100 250 mV mV VIN_OVLO Input Overvoltage Lockout (Inhibits Charger) Rising Threshold Hysteresis l 37.7 38.6 1.4 39.5 V V Input Undervoltage Current Limit VUVCLFB UVCLFB Pin Regulation Range (8-Bit DAC) VUVCLFB Maximum Code 0xFF VUVCLFB Minimum Code 0x00 l 1188 1200 4.6875 1212 mV mV UVCLFB Pin Regulation DAC LSB 4.6875 mV UVCLFB Pin Leakage Current VUVCLFB = 1.2V l –100 100 nA Input Current Limit Regulated Input Current Limit Tolerance Full-Scale VCLP–CLN/RSNSI l –2.0 2.0 % ICL Input Current Limit Range ICL = (VCLP – CLN)/RSNSI 0.5 – 32 mV/RSNSI Input Current Limit LSB Step Size 0.5 mV/RSNSI CLP Input Current VCLP = 12V, VCLP–CLN = 32mV 45 µA CLN Input Current VCLP = 12V, VCLP–CLN = 32mV –100 100 nA CLP, CLN Common Mode Range Note 8 4 35 V The l denotes the specifications which apply over the specified operating junction temperature range, otherwise specifications are at TA = 25°C. (Note 2), DVCC = 3.3V, UVCLFB = 1.5; CELLS1 = INTVCC; EQ, MPPT, CELLS0, CELLS2, CHEM0, CHEM1 = 0; RT = 95.3k; RCCREF = 301k, RNTCBIAS = RNTC = 10k; BATSENS = CSN = CSP; DRVCC = INTVCC; SYS = CLP = CLN. Conditions: Charging; VIN = 12V, SYS = 12V, BATSENS = 7.4V …..Battery Only; VIN = 0V, SYS = 8.4V, BATSENS = 8.4V |
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