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LTC4015 Datasheet(PDF) 4 Page - Linear Technology

Part # LTC4015
Description  Multichemistry Buck Battery Charger Controller with Digital Telemetry System
Download  76 Pages
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Manufacturer  LINER [Linear Technology]
Direct Link  http://www.linear.com
Logo LINER - Linear Technology

LTC4015 Datasheet(HTML) 4 Page - Linear Technology

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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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