Datasheet LTC4015 (Analog Devices) - 4
| 制造商 | Analog Devices |
| 描述 | Multichemistry Buck Battery Charger Controller with Digital Telemetry System |
| 页数 / 页 | 76 / 4 — ELECTRICAL. CHARACTERISTICS The. denotes the specifications which apply … |
| 文件格式/大小 | PDF / 1.6 Mb |
| 文件语言 | 英语 |
ELECTRICAL. CHARACTERISTICS The. denotes the specifications which apply over the specified operating
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LTC4015
ELECTRICAL CHARACTERISTICS 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 SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
VIN Input Supply Voltage Range Note 8 l 3.1 35 V VBAT Battery Voltage Range Note 8 l 35 V VCHARGE(TOL) Charge Voltage, Regulated Battery per Cell Li-Ion ,4.2V per Cell; LiFePO4 3.6V per l –1.25 1.25 % Tolerance, All Chemistries Cell; Lead-Acid 2.2V per Cell Regulated Battery Charge Current Full-Scale VCSP–CSN/RSNSB l –2.0 2.0 % Tolerance 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 Battery Only, Telemetry Inactive l 112 325 µA Supply, Coulomb Counter Disabled) Battery Only, Telemetry Active 1% Duty l 140 364 µA Cycle Battery Only, Telemetry Active 2.84 mA Continuously 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 Rising Threshold l 140 200 250 mV (Must Be Satisfied for Charging) Hysteresis 100 mV VIN_OVLO Input Overvoltage Lockout Rising Threshold l 37.7 38.6 39.5 V (Inhibits Charger) Hysteresis 1.4 V
Input Undervoltage Current Limit
VUVCLFB UVCLFB Pin Regulation Range VUVCLFB Maximum Code 0xFF l 1188 1200 1212 mV (8-Bit DAC) VUVCLFB Minimum Code 0x00 4.6875 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 4015fb 4 For more information www.linear.com/LTC4015 Document Outline Features Applications Typical Application Description Absolute Maximum Ratings Order Information Data Sheet Conventions Pin Configuration Electrical Characteristics Typical Performance Characteristics Pin Functions Block Diagram I2C Timing Diagram Operation Applications Information Register Description DETAILED Register Descriptions Typical Applications Package Description Revision History Typical Application Related Parts
ELECTRICAL CHARACTERISTICS 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 SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
VIN Input Supply Voltage Range Note 8 l 3.1 35 V VBAT Battery Voltage Range Note 8 l 35 V VCHARGE(TOL) Charge Voltage, Regulated Battery per Cell Li-Ion ,4.2V per Cell; LiFePO4 3.6V per l –1.25 1.25 % Tolerance, All Chemistries Cell; Lead-Acid 2.2V per Cell Regulated Battery Charge Current Full-Scale VCSP–CSN/RSNSB l –2.0 2.0 % Tolerance 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 Battery Only, Telemetry Inactive l 112 325 µA Supply, Coulomb Counter Disabled) Battery Only, Telemetry Active 1% Duty l 140 364 µA Cycle Battery Only, Telemetry Active 2.84 mA Continuously 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 Rising Threshold l 140 200 250 mV (Must Be Satisfied for Charging) Hysteresis 100 mV VIN_OVLO Input Overvoltage Lockout Rising Threshold l 37.7 38.6 39.5 V (Inhibits Charger) Hysteresis 1.4 V
Input Undervoltage Current Limit
VUVCLFB UVCLFB Pin Regulation Range VUVCLFB Maximum Code 0xFF l 1188 1200 1212 mV (8-Bit DAC) VUVCLFB Minimum Code 0x00 4.6875 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 4015fb 4 For more information www.linear.com/LTC4015 Document Outline Features Applications Typical Application Description Absolute Maximum Ratings Order Information Data Sheet Conventions Pin Configuration Electrical Characteristics Typical Performance Characteristics Pin Functions Block Diagram I2C Timing Diagram Operation Applications Information Register Description DETAILED Register Descriptions Typical Applications Package Description Revision History Typical Application Related Parts