参数资料
| 型号： | LTC4069EDC#TRPBF |
| 厂商： | Linear Technology |
| 文件页数： | 3/18页 |
| 文件大小： | 0K |
| 描述： | IC CHARGER LI-ION 6-DFN |
| 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： | 3.75 V ~ 5.5 V |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 6-WFDFN 裸露焊盘 |
| 供应商设备封装： | 6-DFN-EP（2x2） |
| 包装： | 带卷 (TR) |
LTC4069
ELECTRICAL CHARACTERISTICS
The l denotes specifications which apply over the full operating temperature range, otherwise specifications are T A = 25°C.
V CC = 5V, V BA T = 3.8V, V NTC = 0V unless otherwise specified. (Note 2)
SYMBOL
I PROG
PARAMETER
PROG Pin Pull-Up Current
CONDITIONS
V PROG > 1V
MIN
TYP
3
MAX
UNITS
μA
V MS, PROG
PROG Shutdown Threshold Voltage
V PROG Rising
l
3.7
4
4.3
V
t SS
Soft-Start Time
170
μs
I TRKL
Trickle Charge Current
V BAT = 2V, R PROG = 2k (0.1%)
35
50
65
mA
V TRKL
Trickle Charge Threshold Voltage
V BAT Rising
l
2.7
2.9
3.05
V
V TRHYS
Trickle Charge Hysteresis Voltage
90
mV
?V RECHRG
?V UVCL1
?V UVCL2
t TIMER
Recharge Battery Threshold Voltage
(V CC – V BAT ) Undervoltage Current
Limit
Termination Timer
Recharge Timer
V FLOAT – V RECHRG , 0°C < T A < 85°C
I BAT = 90% Programmed Charge Current
I BAT = 10% Programmed Charge Current
l
l
70
180
90
3
1.5
100
220
125
4.5
2.25
130
330
150
6
3
mV
mV
mV
Hrs
Hrs
Low-Battery Trickle Charge Time
V BAT = 2.5V
l
0.75
1.125
1.5
Hrs
V CHRG
I CHRG
CHRG Pin Output Low Voltage
CHRG Pin Leakage Current
I CHRG = 5mA
V BAT = 4.5V, V CHRG = 5V
l
l
60
0
105
1
mV
μA
I C/10
End of Charge Indication Current Level
R PROG = 2k (Note 5)
l
0.08
0.095
0.11
mA/mA
T LIM
Junction Temperature in Constant
Temperature Mode
115
°C
R ON
f BADBAT
D BADBAT
I NTC
V COLD
V HOT
V NTC-DIS
V DIS-HYS
f NTC
D NTC
Power FET “On” Resistance
(Between V CC and BAT)
Defective Battery Detection CHRG
Pulse Frequency
Defective Battery Detection CHRG
Pulse Frequency Duty Ratio
NTC Pin Current
Cold Temperature Fault Threshold
Voltage
Hot Temperature Fault Threshold
Voltage
NTC Disable Threshold Voltage
NTC Disable Hysteresis Voltage
Fault Temperature CHRG Pulse Frequency
Fault Temperature CHRG Pulse Frequency
Duty Ratio
I BAT = 350mA
V NTC = 2.5V
Rising Voltage Threshold
Hysteresis
Falling Voltage Threshold
Hysteresis
Falling Threshold; V CC = 5V
450
2
75
0.76 ? V CC
0.015 ? V CC
0.35 ? V CC
0.017 ? V CC
82
50
2
25
1
mΩ
Hz
%
μA
V
V
V
V
mV
mV
Hz
%
Note 1: Stresses beyond those listed under Absolute Maximum Ratings
may cause permanent damage to the device. Exposure to any Absolute
Maximum Rating condition for extended periods may affect device
reliability and lifetime.
Note 2: The LTC4069 is guaranteed to meet performance specifications
from 0°C to 85°C. Specifications over the –40°C to 85°C operating
temperature range are assured by design, characterization and correlation
with statistical process controls.
Note 3: Failure to solder the exposed backside of the package to the PC
board ground plane will result in a thermal resistance much higher than
rated.
Note 4: Although the LTC4069 functions properly at 3.75V, full charge
current requires an input voltage greater than the desired final battery
voltage per the ?V UVCL1 specification.
Note 5: I C/10 is expressed as a fraction of measured full charge current
with indicated PROG resistor.
Note 6: 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.
3
For more information www.linear.com/LTC4069
4069fc
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