参数资料
型号: LTC3550EDHC-1#PBF
厂商: Linear Technology
文件页数: 5/24页
文件大小: 0K
描述: IC CHARGER BATT DUAL 16-DFN
标准包装: 73
功能: 充电管理
电池化学: 锂离子(Li-Ion)
电源电压: 4.3 V ~ 8 V
工作温度: -40°C ~ 85°C
安装类型: 表面贴装
封装/外壳: 16-WFDFN 裸露焊盘
供应商设备封装: 16-DFN(5x3)
包装: 管件
LTC3550-1
TYPICAL PERFOR A CE CHARACTERISTICS
T A = 25°C, unless otherwise noted.
Regulated Charger Output (Float)
Voltage vs Charge Current
Regulated Charger Output (Float)
Voltage vs Temperature
IDC Pin Voltage vs Temperature
(Constant-Current Mode)
4.26
4.24
4.22
4.20
4.18
V DCIN = V USBIN = 5V
4.220
4.215
4.210
4.205
4.200
V DCIN = V USBIN = 5V
1.008
1.006
1.004
1.002
1.000
V DCIN = 8V
4.16
R IDC = R IUSB = 2k
R IDC = 1.25k
4.195
0.998
V DCIN = 4.3V
4.14
4.12
4.190
4.185
0.996
0.994
4.10
0
100 200 300 400 500 600 700 800
4.180
–50
–25
0
25
50
75
100
0.992
–50
–25
0
25
50
75
100
CHARGE CURRENT (mA)
3550-1 G01
IUSB Pin Voltage vs Temperature
(Constant-Current Mode)
TEMPERATURE ( ° C)
3550-1 G02
Charge Current vs IDC Pin Voltage
TEMPERATURE ( ° C)
Charge Current
vs IUSB Pin Voltage
3550-1 G03
1.008
1.006
1.004
900
800
700
V DCIN = 5V
R IDC = 1.25k
900
800
700
V USBIN = 5V
R IUSB = 1.25k
1.002
V USBIN = 8V
600
500
R IDC = 2k
600
500
R IUSB = 2k
1.000
400
400
0.998
0.996
V USBIN = 4.3V
300
200
300
200
0.994
100
R IDC = 10k
100
R IUSB = 10k
0.992
–50
–25
0
25
50
75
100
0
0
0.2
0.4
0.6
0.8
1.0
1.2
0
0
0.2
0.4
0.6
0.8
1.0
1.2
TEMPERATURE ( ° C)
? P ? W ? R Pin I-V Curve
3550-1 G04
V IDC (V)
? C ? H ? R ? G Pin I-V Curve
3550-1 G05
V IUSB (V)
USBPWR Pin I-V Curve
3550-1 G06
35
30
V DCIN = V USBIN = 5V
T A = –40 ° C
35
30
V DCIN = V USBIN = 5V
T A = –40 ° C
6
5
V DCIN = 5V
V USBIN = 0V
T A = – 40 ° C
25
20
T A = 25 ° C
T A = 90 ° C
25
20
T A = 25 ° C
T A = 90 ° C
4
T A = 25 ° C
T A = 90 ° C
3
15
15
10
5
10
5
2
1
0
0
1
2
3
4
5
6
7
0
0
1
2
3
4
5
6
7
0
0
1
2
3
4
5
6
7
V PWR (V)
3550-1 G07
V CHRG (V)
3550-1 G08
V USBPWR (V)
3550-1 G09
35501f
5
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