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参数资料
| 型号： | LTC4052EMS8E-4.2 |
| 厂商： | Linear Technology |
| 文件页数： | 3/12页 |
| 文件大小： | 0K |
| 描述： | IC CHARGER PULSE LI-ION 8-MSOP |
| 标准包装： | 50 |
| 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： | 8-TSSOP，8-MSOP（0.118"，3.00mm 宽）裸露焊盘 |
| 供应商设备封装： | 8-MSOP-EP |
| 包装： | 管件 |
LTC4052-4.2
ELECTRICAL CHARACTERISTICS
Note 1: Absolute Maximum Ratings are those values beyond which the life
of a device may be impaired.
Note 2: Absolute Maximum Rating for GATE pin applies only to externally
applied voltage. During normal operation the LTC4052-4.2’s internal
charge pump can generate GATE pin voltage exceeding absolute
maximum but it is internally current limited.
Note 3: The LTC4052EMS8E-4.2 is guaranteed to meet performance
specifications from 0 ° C to 70 ° C. Specifications over the – 40 ° C to 85 ° C
Note 4: Junction temperature T J is calculated from the ambient
temperature T A and power dissipation P D according to the following
formula: T J = T A + (P D ? θ JA ° C/W)
Note 5. This IC includes overtemperature protection that is intended to
protect the device during momentary overload conditions. Junction
temperature will exceed 125 ° C when overtemperature protection is active.
Continuous operation above the specified maximum operating junction
temperature may impair device reliability.
operating temperature range are assured by design, characterization and
correlation with statistical process controls.
TYPICAL PERFOR A CE CHARACTERISTICS
2.47
2.46
2.45
2.44
2.43
Trickle Charge Threshold Voltage
vs Temperature
24.2
24.0
23.8
23.6
23.4
23.2
23.0
22.8
Trickle Charge Current
vs Temperature
35
30
25
20
Trickle Charge Current vs Input
Supply Voltage
V BAT = 2V
T A = 25 ° C
2.42
–50 –25
0
25
50
75
100
125
22.6
–50 –25
0
25
50
75
100
125
15
5
6
7
8
9
10
TEMPERATURE ( ° C)
Normalized Timer Duration
vs Temperature
4052 G01
TEMPERATURE ( ° C)
Battery Float Voltage
vs Temperature
4052 G02
V IN (V)
4052 G03
CHRG Pin C/10 Pulldown Current
vs Temperature
103
102
C TIMER = 0.1 μ F
4.205
4.200
55
50
4.195
45
101
100
4.190
4.185
40
4.180
35
99
4.175
30
98
–50 –25
0
25
50
75
100
125
4.170
–50 –25
0
25
50
75
100
125
25
–50 –25
0
25
50
75
100
125
TEMPERATURE ( ° C)
4052 G04
TEMPERATURE ( ° C)
4052 G05
TEMPERATURE ( ° C)
4052 G06
405242f
3
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