lt3652hv Linear Technology Corporation, lt3652hv Datasheet - Page 6

• Manufacturer Part Number: lt3652hv
• Description: Lt3652hv Power Tracking 2a Battery Charger Features
• Manufacturer: Linear Technology Corporation

LT3652HV
TYPICAL PERFORMANCE CHARACTERISTICS
6
101.0
100.8
100.6
100.4
100.2
100.0
99.8
99.6
99.4
99.2
99.0
–50
Maximum Charge Current
(V
V
FB
SENSE
–25
= 3V
–V
0
TEMPERATURE (°C)
BAT
25
100
) vs Temperature
3.0
2.5
2.0
1.5
1.0
0.5
80
60
40
20
0
0
2.65
0
Charge Current, Effi ciency, and
Power Loss vs Time
(I
50
Maximum Charge Current
(V
CHG(MAX)
CHARGE
CURRENT
2.66
V
SENSE
20
IN
= 20V
2.67
75
40
–V
2.68
60
100
BAT
TIME (MINUTES)
= 2A; V
3652 G07
2.69 2.7
80 100
V
IN_REG
POWER
LOSS
) vs V
125
FLOAT
2.71
(V)
120
EFFICIENCY
IN_REG
2.72
140
120
100
80
60
40
20
= 8.2V)
0
25
2.73 2.74 2.75
160 180 200
Thermal Foldback – Maximum
Charge Current (V
vs Temperature
Voltage
35
3652 G10
3652 G12
45
95
85
75
65
55
45
35
55
TEMPERATURE (°C)
65
75
85
SENSE
95
105
–V
12
10
90
88
86
84
82
80
78
76
74
72
70
115
4
2
0
8
6
BAT
0
3
V
Current vs V
Network
Charger Effi ciency vs Battery
Voltage (I
3652 G08
FLOAT
125
)
4
T
2
V
A
135
IN
5
= 25°C, unless otherwise noted.
= 20V WITH INPUT BLOCKING DIODE
4
Programming Resistor
6
CHG
6
7
FLOAT
V
BAT(FLT)
8
= 2A)
V
8
BAT
–0.2
–0.4
2.2
2.0
1.8
1.6
1.4
1.2
1.0
0.8
0.6
0.4
0.2
0.0
9
10
for 2-Resistor
(V)
0
10
(V)
CC/CV Charging; BAT Pin Bias
Current vs V
12
11
0.5
12
14
1
13
16
1.5
3652 G13
3652 G11
14 15
BAT
18
V
2
BAT
2.5
(V)
V
BAT(FLT)
3
3652hvf
3652 G09