LTC4065L_12 Datasheet, PDF (5/18 Pages) Linear Integrated Systems – Standalone 250mA Li-Ion Battery Charger in 2 × 2 DFN

LTC4065L/
LTC4065LX/LTC4065L-4.1
TYPICAL PERFORMANCE CHARACTERISTICS
Battery Regulation (Float) Voltage
vs Battery Charge Current
4.24 _{VCC = 5V}
4.22 ^{TA = 25°C}
R_PROG = 800Ω
4.20
4.18
LTC4065L
4.16
4.14
4.12
4.10
LTC4065L-4.1
4.08
4.06
0
50
100 150 200 250
I_BAT (mA)
4065L G01
Battery Regulation (Float) Voltage
vs Temperature
4.24
4.22
4.20
LTC4065L
4.18
4.16
4.14
4.12
4.10
LTC4065L-4.1
4.08
4.06
–50 – 25 0
25 50 75 100
TEMPERATURE (°C)
4065L G02
Charge Current vs Supply Voltage
(Constant Current Mode)
30
R_PROG = 13.3k
V_BAT = 3.8V
25 T_A = 25°C
20
15
10
5
0
4
4.5
5
5.5
6
SUPPLY VOLTAGE (V)
4065L G04
PROG Pin Voltage vs Temperature
(Constant Current Mode)
1.02
V_CC = 5V
V_BAT = 3.8V
R_PROG = 13.3k
1.01
1.00
0.99
0.98
–50 –25 0
25 50 75 100
TEMPERATURE (°C)
4065L G07
Charge Current vs Battery Voltage
300
V_CC = 5V
T_A = 25°C
250 R_PROG = 800Ω
LTC4065L
200
150
100
50
0
0
1
LTC4065L-4.1
2
3
4
5
V_BAT (V)
4065L G05
PROG Pin Voltage
vs Charge Current
1.2
V_CC = 5V
T_A = 25°C
1.0 R_PROG = 800Ω
0.8
0.6
0.4
0.2
0
0
50
100 150 200 250
I_BAT (mA)
4065L G08
Battery Regulation (Float) Voltage
vs Supply Voltage
4.24
T_A = 25°C
4.22 ^IBAT ^{= 2mA}
R_PROG = 800Ω
4.20
LTC4065L
4.18
4.16
4.14
4.12
4.10
LTC4065L-4.1
4.08
4.06
4
4.5
5
5.5
SUPPLY VOLTAGE (V)
6
4065L G03
Charge Current vs Temperature
with Thermal Regulation
(Constant Current Mode)
300
250
200
THERMAL CONTROL
LOOP IN OPERATION
150
100
50 ^VCC ^{= 5V}
V_BAT = 3.8V
R_PROG = 800Ω
0
–50
0
50
100
TEMPERATURE (°C)
150
4065L G06
Power FET On Resistance
vs Temperature
2.0
V_CC = 4V
I_BAT = 150mA
1.8
1.6
1.4
1.2
1.0
–50 –25 0
25 50
TEMPERATURE (°C)
75 100
4065L G09
4065lfb
5