 English |
|
|
|
|
|
|
|
| LTC4015_15 Datasheet, PDF (8/76 Pages) Linear Technology – Multichemistry Buck Battery Charger Controller with Digital Telemetry System | |||
| |||
| ◁ |
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 â¦..Battery Only; VIN = 0V, SYS = 8.4V, BATSENS = 8.4V
SYMBOL
PARAMETER
CONDITIONS
MIN
TYP MAX
UNITS
Coulomb Counter
VSENSE
Sense Voltage Differential Input Range VCSPâCSN
±50
mV
qLSB
Charge Measurement Resolution
Prescaler M = 512 (Default)
0.017
mVhr
TCE
Total Charge Error
10mV ⤠|VSENSE| ⤠50mV
±1.5
%
10mV ⤠|VSENSE| ⤠50mV
l
±2.5
%
IQC_CSP
IQâ Coulomb Counter
VSENSE = 1mV
VSENSE = 30mV, Battery Only
<1.0
%
78
μA
CELLS0, CELLS1, CELLS2, CHEM0, CHEM1 Programming Input Pins (Note 9)
VIHPP
VILPP
RIZPP
Input High Threshold
Input Low Threshold
Input High-Z Test Resistance
INTVCC â VPIN
l
VPIN
l
Internal 50k/50k Resistor Divider Applied
to Inputs During Chemistry/Cell Read
0.3
V
0.3
V
25
kΩ
MPPT, EQ Input Pins
MPPT, EQ Input High Threshold
l 1.1
V
MPPT, EQ Input Low Threshold
l
0.2
V
MPPT, EQ Pin Leakage Current
SMBALERT Pin Characteristics
VEQ, VMPPT = 5V
0
1
µA
ISMBALERT
SMBALERT Pin Leakage Current
VSMBALERT
SMBALERT Pin Output Low Voltage
I2C Port, SDA, SCL
DVCC
I2C Logic Reference Level
IDVCCQ
ADDRESS
DVCC Current
I2C Address
VSMBALERT = 5V
ISMBALERT = 1mA
SCL/SDA = 0kHz
0
1
µA
65
100
mV
1.6
5.5
V
0
µA
1101_000[R/W]b
VIHI2C
VILI2C
IIHI2C
IILI2C
VOLI2C
FSCL
tLOW
tHIGH
tBUF
Input High Threshold
Input Low Threshold
Input Leakage High
Input Leakage Low
Digital Output Low (SDA)
SCL Clock Frequency
LOW Period of SCL Clock
HIGH Period of SCL Clock
Bus Free Time Between Start and Stop
Conditions
ISDA = 3mA
70
% DVCC
30
% DVCC
â1
1
µA
â1
1
µA
0.4
V
400
kHz
1.3
µS
0.6
µS
1.3
µs
tHD(STA)
Hold Time, After (Repeated) Start
Condition
0.6
µs
tSU(STA)
Setup Time After a Repeated Start
Condition
0.6
µs
tSU(STO)
Stop Condition Set-Up Time
0.6
µs
4015f
8
For more information www.linear.com/LTC4015
|
▷ |
German
Russian
Spanish
Italian
Polish
Chinese
Japanese
Korean
French
Portuguese