参数资料
型号: LT3652EDD#TRPBF
厂商: LINEAR TECHNOLOGY CORP
元件分类: 稳压器
英文描述: 3 A BATTERY CHARGE CONTROLLER, 1000 kHz SWITCHING FREQ-MAX, PDSO12
封装: 3 X 3 MM, LEAD FREE, PLASTIC, DFN-12
文件页数: 23/26页
文件大小: 253K
代理商: LT3652EDD#TRPBF
LT3652
6
3652fc
TYPICAL PERFORMANCE CHARACTERISTICS
Maximum Charge Current
(VSENSE–VBAT) vs Temperature
Thermal Foldback – Maximum
Charge Current (VSENSE–VBAT)
vs Temperature
CC/CV Charging; BAT Pin Bias
Current vs VBAT
TA = 25°C, unless otherwise noted.
TEMPERATURE (°C)
–50
99.0
V
SENSE(DC)
(mV)
99.2
99.6
99.8
100.0
101.0
100.4
0
50
75
3652 G07
99.4
100.6
100.8
100.2
–25
25
100
125
VFB = 3V
TEMPERATURE (°C)
0
V
SENSE(DC)
(mV)
40
80
20
60
100
120
45
65
85
105
125
35
135
25
55
75
95
115
3652 G08
VBAT (V)
0
–0.4
I BAT
(mA)
0.0
0.4
0.8
2.2
1.6
1
2
2.5
2.0
1.2
–0.2
0.2
0.6
1.0
1.8
1.4
0.5
1.5
3
3652 G09
VBAT(FLT)
VIN_REG (V)
2.65
V
SENSE(DC)
(mV)
0
20
80
60
40
2.67
2.69 2.7
3652 G10
100
2.66
2.68
2.72
2.71
2.73 2.74 2.75
VBAT(FLT) (V)
02
0
I RFB
(μA)
8
6
10
12
16
3652 G11
4
2
6
4
8
10
12
14
TIME (MINUTES)
0
EFFICIENCY
(%)
CHARGE
CURRENT
(A);
POWER
LOSS
(W)
0
0.5
2.0
2.5
1.5
1.0
40
80 100
3652 G12
3.0
35
45
75
65
55
95
85
20
60
140
120
160 180 200
CHARGE
CURRENT
EFFICIENCY
POWER
LOSS
VIN = 20V
Maximum Charge Current
(VSENSE–VBAT) vs VIN_REG Voltage
VFLOAT Programming Resistor
Current vs VFLOAT for 2-Resistor
Network
Charge Current, Efciency, and
Power Loss vs Time
(ICHG(MAX) = 2A; VFLOAT = 8.2V)
Charger Efciency vs Battery
Voltage (ICHG = 2A)
VBAT (V)
70
EFFICIENCY
(%)
76
80
82
84
86
88
74
72
78
90
57
9
11
13
414 15
36
8
10
12
3652 G13
VIN = 20V WITH INPUT BLOCKING DIODE
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