lt3650-4.1 Linear Technology Corporation, lt3650-4.1 Datasheet - Page 4

• Manufacturer Part Number: lt3650-4.1
• Description: High Voltage 2 Amp Monolithic Li-ion Battery Charger
• Manufacturer: Linear Technology Corporation

LT3650-4.1/LT3650-4.2
ELECTRICAL CHARACTERISTICS
Note 1: Stresses beyond those listed under Absolute Maximum Ratings
may cause permanent damage to the device. Exposure to any Absolute
Maximum Rating condition for extended periods may affect device
reliability and lifetime.
Note 2: The LT3650E is guaranteed to meet performance specifi cations
from 0°C to 85°C. Specifi cations over the –40°C to 85°C operating
TYPICAL PERFORMANCE CHARACTERISTICS
4
temperature range, otherwise specifi cations are at V
SYMBOL
V
I
V
t
f
DC
TIMER
TIMER
O
CHRG
TIMER(DIS)
–0.05
– 0.1
0.05
0.1
0
, V
–50
Battery Float Voltage
vs Temperature
FAULT
–25
0
TEMPERATURE (°C)
PARAMETER
Status Low Voltage
Charge/Discharge Current
Timer Disable Threshold
Full Charge Cycle Timeout
Precondition Timeout
Timer Accuracy
Operating Frequency
Duty Cycle Range
25
50
75
100
3650 G01
125
100
95
90
85
80
75
70
65
–50
IN
V
vs Temperature
IN
= 20V, BOOST-SW = 4V, SHDN = 2V, SENSE = BAT = V
CONDITIONS
10mA Load
Continuous Operation
Standby Mode Current
–25
The
TEMPERATURE (°C)
l
0
denotes the specifi cations which apply over the full operating
25
temperature range are assured by design, characterization and correlation
with statistical process controls. The LT3650I specifi cations are
guaranteed over the full –40°C to 85°C temperature range. High junction
temperatures degrade operating lifetimes.
Note 3: V
(V
BOOST
50
– V
IN
voltages below the start threshold are only supported if
SW
75
365042 G02
) > 2V.
T
A
= 25°C, unless otherwise noted.
100
100
l
l
l
l
l
80
60
40
20
0
0
Maximum Charge Current vs I
Voltage, I
of Programmed I
MIN
–10
0.1
0.9
15
0.2
BAT(FLT)
CHG(MAX)
0.4
0.25
22.5
TYP
25
3
1
V
RNG/SS
0.6
, C
MAX
TIMER
as a Percentage
MAX
0.8
0.4
1.1
10
90
= 0.68μF .
1.0
36504142fb
365042 G03
RNG/SS
UNITS
MHz
1.2
min
μA
hr
%
%
V
V