ltc4054l Linear Technology Corporation, ltc4054l Datasheet - Page 3

• Manufacturer Part Number: ltc4054l
• Description: 150ma Standalone Linear Li-ion Battery Charger In Thinsot
• Manufacturer: Linear Technology Corporation

temperature range, otherwise specifications are at T
ELECTRICAL CHARACTERISTICS
SYMBOL
T
R
t
t
t
I
Note 1: Absolute Maximum Ratings are those values beyond which the life
of the device may be impaired.
Note 2: The LTC4054LE-4.2 is guaranteed to meet performance specifica-
tions 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.
TYPICAL PERFOR A CE CHARACTERISTICS
SS
RECHARGE
TERM
PROG
LIM
ON
1.0075
1.0050
1.0000
0.9975
0.9950
0.9900
1.0100
1.0025
0.9925
4
PROG Pin Voltage vs Supply
Voltage (Constant Current Mode)
V
V
T
A
CC
BAT
= 25 C
= 5V
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
4.5
PARAMETER
= 4V
5
R
R
PROG
PROG
CC
V
CC
5.5
and BAT)
= 15k
(V)
= 1k
6
W
6.5
4054L G01
U
7
1.0000
0.9950
0.9900
1.0100
1.0075
1.0050
1.0025
0.9975
0.9925
CONDITIONS
I
V
I
BAT
BAT
BAT
A
–50
= 0 to I
Drops Below I
PROG Pin Voltage vs Temperature
(Constant Current Mode)
= 25 C. V
High to Low
V
V
R
CC
BAT
PROG
= 5V
–25
The
= 4V
BAT
= 1k
=150V/R
CC
TEMPERATURE ( C)
0
denotes specifications which apply over the full operating
CHG
= 5V, unless otherwise noted.
/10
Note 3: See Thermal Considerations.
Note 4: Supply current includes PROG pin current ( 1mA) but does not
include any current delivered to the battery through the BAT pin.
Note 5: I
with indicated PROG resistor.
25
PROG
50
TERM
75
is expressed as a fraction of measured full charge current
4054L G02
100
180
150
120
90
60
30
0
Charge Current
vs PROG Pin Voltage
0
V
R
T
0.75
MIN
400
1.5
A
CC
PROG
= 25 C
= 5V
0.25
= 1k
LTC4054L-4.2
1000
TYP
120
100
1.5
2
3
0.5
V
PROG
(V)
0.75
MAX
2500
4.5
5
1
4054L G03
4054l42f
UNITS
3
1.25
ms
C
A
s
s