Datasheet

LTC4065L/
LTC4065LX/LTC4065L-4.1
5
4065lfb
TYPICAL PERFORMANCE CHARACTERISTICS
Battery Regulation (Float) Voltage
vs Battery Charge Current
Battery Regulation (Float) Voltage
vs Temperature
Battery Regulation (Float) Voltage
vs Supply Voltage
Charge Current vs Supply Voltage
(Constant Current Mode) Charge Current vs Battery Voltage
Charge Current vs Temperature
with Thermal Regulation
(Constant Current Mode)
PROG Pin Voltage vs Temperature
(Constant Current Mode)
PROG Pin Voltage
vs Charge Current
Power FET On Resistance
vs Temperature
I
BAT
(mA)
0
V
FLOAT
(V)
4.12
4.14
4.16
150
250
4065L G01
4.10
4.08
4.06
50 100 200
4.18
4.22
4.20
4.24
V
CC
= 5V
T
A
= 25°C
R
PROG
= 800Ω
LTC4065L
LTC4065L-4.1
TEMPERATURE (°C)
–50
V
FLOAT
(V)
4.22
25
4065L G02
4.14
4.10
–25 0 50
4.08
4.06
4.24
4.20
4.18
4.16
4.12
75 100
LTC4065L
LTC4065L-4.1
SUPPLY VOLTAGE (V)
4
V
FLOAT
(V)
4.16
4.18
4.20
6
4065L G03
4.12
4.14
4.10
4.06
4.5
5
5.5
4.08
4.24
4.22
T
A
= 25°C
I
BAT
= 2mA
R
PROG
= 800Ω
LTC4065L
LTC4065L-4.1
SUPPLY VOLTAGE (V)
4
0
5
10
20
25
30
I
BAT
(mA)
15
4.5 5 5.5 6
4065L G04
R
PROG
= 13.3k
V
BAT
= 3.8V
T
A
= 25°C
V
BAT
(V)
0
0
I
BAT
(mA)
50
100
150
200
250
300
1234
4065L G05
5
V
CC
= 5V
T
A
= 25°C
R
PROG
= 800Ω
LTC4065L-4.1
LTC4065L
TEMPERATURE (°C)
–50
0
I
BAT
(mA)
50
100
150
200
050
100
150
4065L G06
250
300
THERMAL CONTROL
LOOP IN OPERATION
V
CC
= 5V
V
BAT
= 3.8V
R
PROG
= 800Ω
TEMPERATURE (°C)
–50
V
PROG
(V)
1.01
1.02
25 75
4065L G07
1.00
–25 0
50 100
0.99
0.98
V
CC
= 5V
V
BAT
= 3.8V
R
PROG
= 13.3k
I
BAT
(mA)
0
0
V
PROG
(V)
0.2
0.4
0.6
0.8
1.0
1.2
50 100 150 200
4065L G08
250
V
CC
= 5V
T
A
= 25°C
R
PROG
= 800Ω
TEMPERATURE (°C)
–50
1.0
R
DS
(Ω)
1.2
1.4
1.6
1.8
2.0
–25
02550
4065L G09
75 100
V
CC
= 4V
I
BAT
= 150mA