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参数资料
| 型号： | LTC4052EMS8E-4.2#TRPBF |
| 厂商： | Linear Technology |
| 文件页数： | 2/12页 |
| 文件大小： | 0K |
| 描述： | IC CHARGER PULSE LI-ION 8-MSOP |
| 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： | 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： | 带卷 (TR) |
LTC4052-4.2
ABSOLUTE
(Note 1)
AXI U RATI GS
PACKAGE/ORDER I FOR ATIO
Input Supply Voltage (V IN )....................................... 12V
BAT Voltage ............................................... – 0.3V to 12V
TOP VIEW
ORDER PART
NUMBER
GATE (Note 2) ............................................. – 0.3V to 8V
SENSE, TIMER .................................. – 0.3V to V IN +0.3V
CHRG, ACPR ............................................. – 0.3V to 12V
SENSE, BAT Peak Current ...................................... 1.5A
Operating Temperature Range (Note 3) .. – 40 ° C to 85 ° C
Junction Temperature (Note 4) ............................. 125 ° C
Storage Temperature Range ................. – 65 ° C to 150 ° C
Lead Temperature (Soldering, 10 sec).................. 300 ° C
SENSE 1 8 BAT
ACPR 2 7 GATE LTC4052EMS8E-4.2
V IN 3 6 CHRG
GND 4 5 TIMER
MSE EXPOSED PAD PACKAGE
8-LEAD PLASTIC MSOP MS8 PART MARKING
T JMAX = 125 ° C, θ JA = 35 ° C/W
EXPOSED PAD IS GROUND. LTYY
(MUST BE SOLDERED TO PCB).
Consult LTC Marketing for parts specified with wider operating temperature ranges.
DC ELECTRICAL CHARACTERISTICS The q denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at T A = 25 ° C. V IN = 6V unless otherwise noted.
SYMBOL
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
V IN
I IN
Input Supply Voltage
Input Quiescent Supply Current
Wall Adapter Open Circuit Voltage
Full Charge Mode
q
q
4.5
0.7
10
1.4
V
mA
V BAT
V RECHRG
Battery Float Voltage
Recharge Battery Voltage Threshold
0 ° C ≤ T A ≤ 85 ° C
Battery Voltage Falling 0 ° C ≤ T A ≤ 85 ° C
q
q
4.158
4.137
3.990
3.969
4.200
4.200
4.050
4.050
4.242
4.242
4.110
4.110
V
V
V
V
V MARGIN
V IMAX
V BAT – V RECHRG Margin
Overcurrent Trip Sense Voltage
q
q
75
90
150
105
225
120
mV
mV
I TRICKLE
V TRICKLE
R DS(ON)
Trickle Charge Current
Trickle Charge Threshold Voltage
Internal Switch On-Resistance
V BAT = 2V
V BAT Rising
V BAT = 2.6V
V BAT = 4V
q
q
14
2.35
24
2.45
0.45
0.35
34
2.55
0.7
0.5
mA
V
?
?
V GATE
T TIMER
GATE Pin Voltage
TIMER Period Accuracy
V BAT = 2.6V
V BAT = 4V
C TIMER = 0.1 μ F, Full Charge Mode
6.5
10.5
± 10
V
V
%
I LEAK
Battery Leakage Current Through Charger V BAT = 4V, V IN = 0V
q
1
μ A
V SLEEP
Sleep Threshold Voltage (V IN – V BAT ) Low to High
(V IN – V BAT ) High to Low
20
0
45
15
70
mV
mV
V ACPR
I LEAKACPR
V CHRG
I LEAKCHRG
I CHRG
ACPR Pin Output Low Voltage
ACPR Pin Leakage Current
CHRG Pin Output Low Voltage
CHRG Pin Leakage Current
CHRG Pin Weak Pull-Down Current
I ACPR = 3mA
V IN = 0, V ACPR = 6V
I CHRG = 3mA, Charging, C/10 Not Reached
V IN = 0, V CHRG = 6V
V CHRG = 1V, Charging, C/10 Reached
q
q
q
q
20
0.5
0.5
40
0.8
1
0.8
1
70
V
μ A
V
μ A
μ A
405242f
2
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