ltc4054x-4.2 Linear Technology Corporation, ltc4054x-4.2 Datasheet - Page 3

• Manufacturer Part Number: ltc4054x-4.2
• Description: Standalone Linear Li-ion Battery Charger With Thermal Regulation In Thinsot
• Manufacturer: Linear Technology Corporation

temperature range, otherwise specifications are at T
SYMBOL
T
R
t
t
t
I
ELECTRICAL CHARACTERISTICS
Note 1: Absolute Maximum Ratings are those values beyond which the life
of the device may be impaired.
Note 2: The LTC4054E-4.2 and the LTC4054XE-4.2 are 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.
Note 3: See Thermal Considerations.
TYPICAL PERFOR A CE CHARACTERISTICS
SS
RECHARGE
TERM
PROG
LIM
ON
1.015
1.010
1.005
1.000
0.995
0.990
0.985
4.0
PROG Pin Voltage vs Supply
Voltage(Constant Current Mode)
V
V
T
R
A
CC
BAT
PROG
= 25 C
= 5V
4.5
= 4V
PARAMETER
Junction Temperature in Constant
Temperature Mode
Power FET “ON” Resistance
(Between V
Soft-Start Time
Recharge Comparator Filter Time
Termination Comparator Filter Time
PROG Pin Pull-Up Current
= 10k
5.0
V
CC
CC
5.5
(V)
and BAT)
6.0
W
6.5
4054 G01
U
7.0
1.0100
1.0075
1.0050
1.0025
1.0000
0.9975
0.9950
0.9925
0.9900
CONDITIONS
I
V
I
BAT
BAT
BAT
A
–50
= 0 to I
Falling Below I
PROG Pin Voltage vs
Temperature
= 25 C. V
High to Low
V
V
R
CC
BAT
PROG
= 5V
–25
The
= 4V
BAT
= 10k
=1000V/R
TEMPERATURE ( C)
CC
0
denotes specifications which apply over the full operating
CHG
= 5V, unless otherwise noted.
/10
Note 4: Supply current includes PROG pin current (approximately 100 A)
but does not include any current delivered to the battery through the BAT
pin (approximately 100mA).
Note 5: This parameter is not applicable to the LTC4054X.
Note 6: I
with indicated PROG resistor.
25
PROG
50
TERM
LTC4054-4.2/LTC4054X-4.2
75
is expressed as a fraction of measured full charge current
4054 G02
100
600
500
400
300
200
100
0
0
Charge Current vs
PROG Pin Voltage
V
T
R
MIN
0.75
400
CC
A
PROG
= 25 C
= 5V
0.25
= 2k
1000
TYP
120
600
100
2
3
0.50
V
PROG
(V)
0.75
2500
MAX
4.5
1.00
UNITS
405442xf
4054 G03
3
m
1.25
ms
C
A
s
s