LTC4100 Linear Technology, LTC4100 Datasheet - Page 5

• Manufacturer Part Number: LTC4100
• Description: Smart Battery Charger Controller
• Manufacturer: Linear Technology

ELECTRICAL CHARACTERISTICS
temperature range, otherwise specifications are at T
SYMBOL
Logic Levels
V
V
V
I
I
V
V
V
V
SMBus Timing (Refer to System Management Bus Specification, Revision 1.1, Section 2.1 for Timing Diagrams)
t
t
t
t
t
t
t
t
Note 1: Absolute Maximum Ratings are those values beyond which the life
of a device may be impaired.
Note 2: See Test Circuit.
Note 3: Does not include tolerance of current sense resistor.
Note 4: The LTC4100E is guaranteed to meet performance specifications
from 0 C to 70 C. Specifications over the –40 C to 85 C operating
temperature range are assured by design, characterization and correlation
with statistical process controls.
IL
IH
HIGH
LOW
R
F
SU:STA
HD:STA
HD:DAT
TIMEOUT
IL
IH
OL
OL
OL
IL
IH
PARAMETER
Charging Voltage Limit
SCL/SDA Input Low Voltage
SCL/SDA Input High Voltage
SDA Output Low Voltage
SCL/SDA Input Current
SCL/SDA Input Current
SMBALERT Output Low Voltage
SMBALERT Output Pull-Up Current
CHGEN Output Low Voltage
CHGEN Output Pull-Up Current
CHGEN Input Low Voltage
CHGEN Input High Voltage
Power-On Reset Duration
SCL Serial Clock High Period
SCL Serial Clock Low Period
SDA/SCL Rise Time
SDA/SCL Fall Time
Start Condition Setup Time
StartCondition Hold Time
SDA to SCL Falling-Edge Hold Time,
Slave Clocking in Data
Time Between Receiving Valid
ChargingCurrent() and
ChargingVoltage() Commands
A
CONDITIONS
R
Charging Voltage = 0x2260 (Note 7)
R
Charging Voltage = 0x3330 (Note 7)
R
Charging Voltage = 0x4400 (Note 7)
R
Charging Voltage = 0x5400 DCIN 22V (Note 7)
R
Charging Voltage = 0x6D60 DCIN 29V (Note 7)
I
V
V
I
V
I
V
V
V
V
I
I
C
C
PULL-UP
PULL-UP
OL
PULL-UP
PULL-UP
VLIM
VLIM
VLIM
VLIM
VLIM
SDA
SDA
SMBALERT
CHGEN
DD
DD
DD
LOAD
LOAD
= 25 C. V
= 100 A
= 3V
= 5.5V
Ramp from 0V to >3V in <5 s
, V
, V
= 0
= 10k 1%
= 33k 1%
= 100k 1%
= 0pen (or Short to V
= 250pF, R
= 250pF, R
The
SCL
SCL
= V
= 350 A
= 500 A
= 350 A, C
= 350 A, C
OL
= V
= V
= V
DCIN
denotes the specifications which apply over the full operating
OL
IL
IH
PU
PU
= 20V, V
Note 5: Current accuracy dependent upon circuit compensation and sense
resistor.
Note 6: C
SafetySignal.
Note 7: The corresponding overrange bit will be set when a HEX value
greater than or equal to this value is used.
LOAD
LOAD
= 9.31k
= 9.31k
= 250pF, R
= 250pF, R
DD
DD
TH
)
= 3.3V, V
is defined as the sum of capacitance on THA, THB and
PU
PU
= 9.31k
= 9.31k
BAT
= 12V unless otherwise noted. (Note 4)
12.999
17.269
21.538
27.781
8.730
–17.5
–17.5
MIN
300
140
2.1
2.5
4.7
4.7
–1
–1
4
4
13.104
17.408
21.712
28.006
8.800
TYP
–10
–10
100
175
3.9
LTC4100
13.209
17.547
21.886
28.231
15000
8.870
1000
MAX
–3.5
–3.5
300
210
0.8
0.4
0.5
0.4
0.9
1
1
sn4100 4100is
UNITS
5
sec
ns
ns
ns
V
V
V
V
V
V
V
V
A
A
V
A
V
A
V
V
V
V
s
s
s
s
s