LTC1732-4 LINER [Linear Technology], LTC1732-4 Datasheet - Page 3

• Manufacturer Part Number: LTC1732-4
• Description: Lithium-Ion Linear Battery Charger Controller
• Manufacturer: LINER [Linear Technology]

ELECTRICAL CHARACTERISTICS
temperature range, otherwise specifications are at T
SYMBOL
I
t
V
Note 1: Absolute Maximum Ratings are those values beyond which the life
of a device may be impaired.
TYPICAL PERFOR A CE CHARACTERISTICS
C/10
TIMER
RECHRG
2.470
2.465
2.460
2.455
2.250
60
55
50
45
40
–50
4
Trickle Charge Current vs V
Trickle Charge Threshold Voltage
vs Temperature
R
R
V
T
V
BAT
A
PROG
SEN
CC
= 25 C
PARAMETER
End of Charge Indication Current Level
TIMER Accuracy
Recharge Battery Voltage Threshold per Cell
–25
= 6V
= 2V
= 0.2
=19.6k
6
0
TEMPERATURE ( C)
25
V
CC
8
(V)
50
75
W
10
CC
100
1732 G01
1732 G04
U
125
12
2.470
2.465
2.460
2.455
2.450
110
105
100
95
90
CONDITIONS
R
C
V
V
–50
A
4
TIMER
BAT
BAT
Program Voltage vs Temperature
Timer Accuracy vs V
PROG
V
R
= 25 C. V
C
V
T
CC
PROG
TIMER
BAT
A
from High to Low (LTC1732-4)
from High to Low (LTC1732-4.2)
= 25 C
–25
= 6V
= 19.6k, R
= 3V
= 0.1 F
The
= 19.6k
= 0.1 F
6
0
TEMPERATURE ( C)
CC
denotes the specifications which apply over the full operating
= 6V unless otherwise noted.
SENSE
25
V
CC
Note 2: The LTC1732E 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.
8
(V)
50
= 0.2
CC
75
10
100
1732 G02
1732 G05
LTC1732-4/LTC1732-4.2
125
12
110
105
100
95
90
60
55
50
45
40
–50
–50
Timer Accuracy vs Temperature
Trickle Charge Current vs
Temperature
R
R
V
V
V
C
BAT
CC
PROG
SEN
CC
TIMER
–25
–25
= 6V
= 6V
= 2V
= 0.2
3.72
3.95
MIN
=19.6k
25
= 0.1 F
0
0
TEMPERATURE ( C)
TEMPERATURE ( C)
3.80
4.05
TYP
25
25
50
10
50
50
MAX
100
75
75
100
100
UNITS
1732 G03
1732 G06
3
mA
125
125
%
V
V