LTC4015_15 Datasheet, PDF (52/76 Pages) Linear Technology – Multichemistry Buck Battery Charger Controller with Digital Telemetry System

LTC4015
Register Description
SYMBOL
JEITA_T2
JEITA_T3
JEITA_T4
JEITA_T5
JEITA_T6
VCHARGE_JEITA_6_5
SUB R/W ACTIVE DESCRIPTION
ADDR
BITS
0x20 R/W² 15:0 Value of NTC_RATIO for transition between JEITA regions 3 and 2
0x21 R/W² 15:0 Value of NTC_RATIO for transition between JEITA regions 4 and 3
0x22 R/W² 15:0 Value of NTC_RATIO for transition between JEITA regions 5 and 4
0x23 R/W² 15:0 Value of NTC_RATIO for transition between JEITA regions 6 and 5
0x24 R/W² 15:0 Value of NTC_RATIO for transition between JEITA regions 7 (off) and 6
0x25 R/W² 9:0 VCHARGE values for JEITA temperature regions 6 and 5
vcharge_jeita_6
9:5
vcharge_jeita_5
VCHARGE_JEITA_4_3_2
4:0
0x26 R/W² 14:0 VCHARGE values for JEITA temperature regions 4, 3, and 2
vcharge_jeita_4
14:10
vcharge_jeita_3
9:5
vcharge_jeita_2
ICHARGE_JEITA_6_5
4:0
0x27 R/W² 9:0 ICHARGE_TARGET values for JEITA temperature regions 6 and 5
icharge_jeita_6
9:5
icharge_jeita_5
ICHARGE_JEITA_4_3_2
4:0
0x28 R/W² 14:0 ICHARGE_TARGET value for JEITA temperature regions 4, 3, and 2
icharge_jeita_4
14:10
icharge_jeita_3
9:5
icharge_jeita_2
CHARGER_CONFIG_BITS
4:0
0x29 R/W² 2:0 Battery charger configuration settings, bits 15:3 are reserved.
en_c_over_x_term
2 enable C/x termination
en_lead_acid_temp_comp
1 enable lead-acid charge voltage temperature compensation
en_jeita
VABSORB_DELTA
MAX_ABSORB_TIME
VEQUALIZE_DELTA
EQUALIZE_TIME
0 enable jeita temperature profile
0x2A R/W² 5:0 LiFePO₄/lead-acid absorb voltage adder, bits 15:6 are reserved.
0x2B R/W² 15:0 Maximum time for LiFePO₄/lead-acid absorb charge
0x2C R/W² 5:0 Lead-acid equalize charge voltage adder, bits 15:6 are reserved.
0x2D R/W² 15:0 Lead-acid equalization time
LIFEP04_RECHARGE_THRESHOLD 0x2E R/W 15:0 LiFeP0₄ recharge threshold
RESERVED
0x2F
MAX_CHARGE_TIMER
0x30 R 15:0 For lithium chemistries, indicates the time (in sec) that the battery has
been charging
CV_TIMER
0x31 R 15:0 For lithium chemistries, indicates the time (in sec) that the battery has
been in constant-voltage regulation
ABSORB_TIMER
0x32 R 15:0 For LiFePO₄ and lead-acid batteries, indicates the time (in sec) that the
battery has been in absorb phase
DEFAULT PAGE
0x372A 64
0x1F27 64
0x1BCC 64
0x18B9 64
0x136D 64
See Note 1 64
65
65
See Note 1 64
65
65
65
0x01EF 65
0x0F 65
0x0F 65
0x7FEF 65
0x1F 65
0x1F 65
0x0F 65
See Note 1 65
See Note 1 65
See Note 1 65
See Note 1 65
See Note 1 63
See Note 1 64
0x002A 63
0x0E10 64
0x4410 64
66
66
66
4015f
52
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