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参数资料
| 型号： | LTC4050EMS-4.2#TRPBF |
| 厂商： | Linear Technology |
| 文件页数： | 2/12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
ABSOLUTE M AXI M U M RATINGS
(Note 1)
Input Supply Voltage (V CC ) ...................................... 12V
SENSE, DRV, BAT, SEL,
PACKAGE/ORDER I N FOR M ATIO N
ORDER PART
NUMBER
TIMER, PROG, CHRG, ACPR ................. – 0.3V to 12V
Operating Temperature Range (Note 2) . – 40 ° C to 85 ° C
Storage Temperature Range ................. – 65 ° C to 150 ° C
Lead Temperature (Soldering, 10 sec).................. 300 ° C
BAT
NTC
CHRG
TIMER
GND
1
2
3
4
5
TOP VIEW
10
9
8
7
6
ACPR
SENSE
V CC
DRV
PROG
LTC4050EMS-4.1
LTC4050EMS-4.2
MS PACKAGE
10-LEAD PLASTIC MSOP
T JMAX = 140 ° C, θ JA = 180 ° C/W
MS PART MARKING
LTTW
LTTX
Consult LTC Marketing for parts specified with wider operating temperature ranges.
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
V CC
I CC
PARAMETER
Input Supply Voltage
Input Supply Current
CONDITIONS
Charger On, Current Mode
Shutdown Mode
q
q
q
MIN
4.5
TYP
1.3
1.3
MAX
10
3
3
UNITS
V
mA
mA
Sleep Mode (Battery Drain Current)
5
15
μ A
V BAT
I BAT
Regulated Output (Float) Voltage in
Constant Voltage Mode
Current Mode Charge Current
LTC4050-4.1; 5V ≤ V CC ≤ 10V, 0 ° C ≤ T A ≤ 85 ° C
LTC4050-4.2; 5V ≤ V CC ≤ 10V, 0 ° C ≤ T A ≤ 85 ° C
LTC4050-4.1; 5V ≤ V CC ≤ 10V
LTC4050-4.2; 5V ≤ V CC ≤ 10V
R PROG = 19.6k, R SENSE = 0.2 ?
R PROG = 19.6k, R SENSE = 0.2 ?
R PROG = 97.6k, R SENSE = 0.2 ?
q
q
q
4.059
4.158
4.039
4.137
440
415
60
4.1
4.2
4.1
4.2
500
100
4.141
4.242
4.141
4.242
535
585
140
V
V
V
V
mA
mA
mA
I TRIKL
V TRIKL
V UV
Trickle Charge Current
Trickle Charge Threshold Voltage
V CC Undervoltage Lockout Voltage
V BAT = 2V, R PROG = 19.6k, I TRIKL = (V CC – V SENSE )/0.2 ? q
q
q
20
2.41
55
2.49
4
90
2.58
4.5
mA
V
V
? V UV
V MSD
V CC Undervoltage Lockout Hysteresis
PROG Pin Manual Shutdown
130
3.6
mV
V
Threshold Voltage
V ASD
Automatic Shutdown Threshold Voltage
(V CC – V BAT ) High to Low
(V CC – V BAT ) Low to High
25
40
54
69
85
100
mV
mV
I PROG
V PROG
V ACPR
I CHRG
V CHRG
R HOT
R COLD
PROG Pin Current
PROG Pin Voltage
ACPR Pin Output Low Voltage
CHRG Pin Weak Pull-Down Current
CHRG Pin Output Low Voltage
Thermistor Resistance for Hot Fault
Thermistor Resistance for Cold Fault
Internal Pull-Up Current, No R PROG
PROG Pin Source Current, ? V PROG ≤ 5mV
R PROG =19.6k
I ACPR = 5mA
V CHRG = 1V
I CHRG = 5mA
q
300
3.7
25
2.3
2.47
0.525
32
0.525
4.1
28.5
4.4
31
μ A
μ A
V
V
μ A
V
k ?
k ?
4050f
2
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