Datasheet LTC4015 (Analog Devices) - 5

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 INTVCC Regulator (SYS is Supply Pin for This Regulator)
VINTVCC Internal Regulator Output Voltage No Load 5 V Load Regulation IINTVCC = 50 mA 1.5 2.5 % VINTVCC_CUVLO INTVCC Undervoltage Charger Lockout Rising Threshold l 4.2 4.3 4.4 V Hysteresis 0.3 V VINTVCC_TUVLO INTVCC Undervoltage Telemetry System Rising Threshold l 2.75 2.85 2.95 V Lockout Hysteresis 0.12 V
DRVCC INPUT (External Supply or Supplied by INTVCC)
VDRVCC DRVCC Supply Voltage 4.3 5.5 V DRVCC Undervoltage Lockout Rising Threshold l 4.1 4.2 4.3 V Hysteresis 0.3 V
Battery Charger (All Chemistries)
ICHARGE Battery Charge Current Range, VCSP > 2.6V (Note 10) 1 – 32 mV/RSNSB Battery Charge Current Resolution 1 mV/RSNSB Peak Low VCSP Charge Current VCSP < 2.4V 7.0 mV/RSNSB IBATSENS + ICSP + ICSN Charger Suspended (Telemetry Active) VIN, VSYS = 12V, VBATSENS = 7.4V 110 µA VIN, VSYS = 35V, VBATSENS = 34V (9 Cells) 200 µA
Lithium-Ion/Lithium Polymer Battery Charger Lithium-Ion/Lithium Polymer Programmable, CHEM1, CHEM0 = [LL] (Note 9)
Li-Ion Charge Voltage Max DAC Setting Code 11111 (Note 11) 4.2 V/Cell Li-Ion Charge Voltage Min DAC Setting Code 00000 (Note 11) 3.8125 V/Cell Li-Ion Charge Voltage DAC LSB 12.5 mV Li-Ion Recharge Voltage Percent of Charge Voltage 97.5 % Charge C/x Termination Setting VCSP–CSN (I2C Termination Option) 3.2 mV
Lithium-Ion/Lithium Polymer Fixed 4.2, 4.1, 4.0 Charge Voltage, CHEM1, CHEM0 = [HH,LZ,ZL] (Note 9)
4.2V Fixed Li-Ion Charge Voltage CHEM1,0 = [H,H] (Note 11) 4.200 V/Cell 4.2V Fixed Li-Ion Recharge Voltage CHEM1,0 = [H,H] 4.095 V/Cell 4.1V Fixed Li-Ion Charge Voltage CHEM1,0 = [L,Z] (Note 11) 4.100 V/Cell 4.1V Fixed Li-Ion Recharge Voltage CHEM1,0 = [L,Z] 4.000 V/Cell 4.0V Fixed Li-Ion Charge Voltage CHEM1,0 = [Z,L] (Note 11) 4.000 V/Cell 4.0V Fixed Li-Ion Recharge Voltage CHEM1,0 = [Z,L] 3.900 V/Cell
Lithium-Ion/Lithium Polymer, CHEM1, CHEM0 = [LL, HH, LZ, ZL] (Note 9)
Low Battery Precharge Threshold Charge Voltage = 4.2V 2.85 V/Cell Low Battery Precharge Hysteresis Charge Voltage = 4.2V 50 mV/Cell Low Battery Precharge Current ICHARGE Set to 32 mV/RSNSB 3 mV/RSNSB Max Charge Time 18.2 hrs Charge Termination Timer (Default Termination) 4 hrs 4015fb For more information www.linear.com/LTC4015 5 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