参数资料
型号: LTC4068XEDD-4.2#PBF
厂商: Linear Technology
文件页数: 4/12页
文件大小: 0K
描述: IC CHARGER BATT LI-ON 8-DFN
标准包装: 121
功能: 充电管理
电池化学: 锂离子(Li-Ion)
电源电压: 4.25 V ~ 6.5 V
工作温度: -40°C ~ 85°C
安装类型: 表面贴装
封装/外壳: 8-WFDFN 裸露焊盘
供应商设备封装: 8-DFN-EP(3x3)
包装: 管件
产品目录页面: 1341 (CN2011-ZH PDF)
LTC4068-4.2/LTC4068X-4.2
TYPICAL PERFOR A CE CHARACTERISTICS
Regulated Output (Float) Voltage
vs Charge Current
Regulated Output (Float) Voltage
vs Temperature
Regulated Output (Float) Voltage
vs Supply Voltage
4.26
V CC = 5V
4.24 T A = 25 ° C
R PROG = 1.25k
4.215
4.210
V CC = 5V
R PROG = 10k
4.215
4.210
T A = 25 ° C
R PROG = 10k
4.22
4.20
4.18
4.16
4.14
4.12
4.205
4.200
4.195
4.190
4.205
4.200
4.195
4.190
4.10
0
100
200
300
400
500
600
700
4.185
–50
–25
0 25 50
75
100
4.185
4
4.5
5
5.5
6
6.5
7
I BAT (mA)
CHRG Pin I-V Curve
(Pull-Down State)
405842 G04
TEMPERATURE ( ° C)
ACPR Pin I-V Curve
(Pull-Down State)
405842 G05
V CC (V)
Trickle Charge Current
vs Temperature
405842 G06
30
25
T A = –40 ° C
T A = 25 ° C
30
25
T A = –40 ° C
T A = 25 ° C
60
50
V CC = 5V
V BAT = 2.5V
L TC4068     ONL Y
R PROG = 2k
20
15
10
T A = 90 ° C
20
15
10
T A = 90 ° C
40
30
20
5
0
0
1
2
3
4
5
V CC = 5V
V BAT = 4V
6
7
5
0
0
1
2
3
4
5
V CC = 5V
V BAT = 4V
6
7
10
0
–50
–25
R PROG = 10k
0 25 50
75
100
V CHRG (V)
Trickle Charge Current
vs Supply Voltage
405842 G07
V ACPR (V)
405842 G08
Trickle Charge Threshold Voltage
vs Temperature
TEMPERATURE ( ° C)
405842 G09
Charge Current vs Battery Voltage
60
50
V BAT = 2.5V
T A = 25 ° C
L TC4068     ONL Y
R PROG = 2k
3.000
2.975
2.950
V CC = 5V
R PROG = 10k
L TC4068     ONL Y
600
500
L TC4068     ONL Y
40
30
20
2.925
2.900
2.875
400
300
200
10
R PROG = 10k
2.850
2.825
100
V CC = 5V
θ JA = 40 ° C/W
0
4
4.5
5
5.5
6
6.5
7
2.800
–50
–25
0
25
50
75
100
0
2.4
2.7
3
R PROG = 2k
3.3 3.6
3.9
4.2
4.5
V CC (V)
405842 G10
TEMPERATURE ( ° C)
405842 G11
V BAT (V)
405842 G12
406842fa
4
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