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参数资料
| 型号： | LTC4050EMS-4.2#TRPBF |
| 厂商： | Linear Technology |
| 文件页数： | 3/12页 |
| 文件大小： | 0K |
| 描述： | IC BATT CHRG CNTRL LI-ION 10MSOP |
| 标准包装： | 2,500 |
| 功能： | 充电管理 |
| 电池化学： | 锂离子（Li-Ion） |
| 电源电压： | 4.5 V ~ 10 V |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 10-TFSOP，10-MSOP（0.118"，3.00mm 宽） |
| 供应商设备封装： | 10-MSOP |
| 包装： | 带卷 (TR) |
LTC4050
ELECTRICAL CHARACTERISTICS The q denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at T A = 25 ° C. V CC = 6V unless otherwise noted.
SYMBOL
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
I C/10
10% Charge Current Indication Level
R PROG = 19.6k, R SENSE = 0.2 ?
q
25
50
100
mA
t TIMER
TIMER Accuracy
C TIMER = 0.1 μ F
10
%
V RECHRG
Recharge Threshold Voltage
V BAT from High to Low (LTC4050-4.1)
V BAT from High to Low (LTC4050-4.2)
3.83
3.93
3.88
3.98
V
V
Note 1: Absolute Maximum Ratings are those values beyond which the life
of a device may be impaired.
Note 2: The LTC4050E is guaranteed to meet performance specifications
from 0 ° C to 70 ° C. Specifications over the –40 ° C to 85 ° C operating
temperature range are assured by design, characterization and correlation
with statistical process controls.
TYPICAL PERFOR A CE CHARACTERISTICS
Trickle Charge Current
Charge Current vs Temperature
Charge Current vs V CC
vs Temperature
540
520
500
480
R PROG = 19.6k
R SEN = 0.2 ?
V BAT = 3V
V CC = 6V
520
R PROG = 19.6k
515 R SEN = 0.2 ?
V BAT = 3V
510 T A = 25 ° C
505
500
495
490
485
70
R PROG = 19.6k
R SEN = 0.2 ?
65 V BAT = 2V
V CC = 6V
60
55
50
45
460
–50
–25
0 25 50
75
100
125
480
4
6
8
10
40
–50 –25
0
25
50
75
100
125
TEMPERATURE ( ° C)
LTC4050 G01
Trickle Charge Current vs V CC
V CC (V)
LC4050 G02
Trickle Charge Threshold Voltage
vs Temperature
TEMPERATURE ( ° C)
LTC4050 G03
Trickle Charge Threshold Voltage
vs V CC
70
R PROG = 19.6k
R SEN = 0.2 ?
65 V BAT = 2V
T A = 25 ° C
2.51
2.50
V CC = 6V
R PROG = 19.6k
2.55
R PROG = 19.6k
2.54 T A = 25 ° C
2.53
60
55
50
2.49
2.48
2.52
2.51
2.50
2.49
2.48
45
2.47
2.47
2.46
40
4
6
8
10
2.46
–50 –25
0
25
50
75
100
125
2.45
4
6
8
10
V CC (V)
LTC4050 G04
TEMPERATURE ( ° C)
LTC4050 G05
V CC (V)
LTC4050 G06
3
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