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參數(shù)資料
| 型號(hào)： | LTC4065EDC-4.4#PBF |
| 廠商： | LINEAR TECHNOLOGY CORP |
| 元件分類： | 電源管理 |
| 英文描述： | 1-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO6 |
| 封裝： | 2 X 2 MM, LEAD FREE, PLASTIC, MO-229WCCD-2, DFN-6 |
| 文件頁(yè)數(shù)： | 10/16頁(yè) |
| 文件大?。?/td> | 178K |
| 代理商： | LTC4065EDC-4.4#PBF |
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3
LTC4065-4.4
406544f
SYMBOL
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
tSS
Soft-Start Time
180
s
ITRKL
Trickle Charge Current
VBAT = 2V, RPROG = 2k (0.1%)
35
50
65
mA
VTRKL
Trickle Charge Threshold Voltage
VBAT Rising
●
2.7
2.9
3.05
V
VTRHYS
Trickle Charge Hysteresis Voltage
90
mV
VRECHRG
Recharge Battery Threshold Voltage
VFLOAT – VRECHRG, 0°C < TA < 85°C
70
100
130
mV
VUVCL1
(VCC – VBAT) Undervoltage Current
IBAT = 90% Programmed Charge Current
180
220
330
mV
VUVCL2
Limit
IBAT = 10% Programmed Charge Current
90
125
150
mV
tTIMER
Termination Timer
●
3
4.5
6
Hrs
Recharge Time
●
1.5
2.25
3
Hrs
Low-Battery Trickle Charge Time
VBAT = 2.5V
●
0.75
1.125
1.5
Hrs
VCHRG
CHRG Pin Output Low Voltage
ICHRG = 5mA
●
60
105
mV
ICHRG
CHRG Pin Input Current
VBAT = 4.5V, VCHRG = 5V
●
01
A
IC/10
End of Charge Indication Current
RPROG = 2k (Note 5)
●
0.085
0.1
0.115
mA/mA
Level
TLIM
Junction Temperature in Constant
115
°C
Temperature Mode
RON
Power FET On-Resistance
IBAT = 200mA
450
m
(Between VCC and BAT)
fBADBAT
Defective Battery Detection CHRG
2
Hz
Pulse Frequency
DBADBAT
Defective Battery Detection CHRG
75
%
Pulse Frequency Duty Ratio
The
● denotes specifications which apply over the full operating temperature range, otherwise specifications are TA = 25°C.
VCC = 5V, VBAT = 3.8V, VEN = 0V unless otherwise specified. (Note 2)
ELECTRICAL CHARACTERISTICS
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 LTC4065-4.4 are guaranteed to meet performance specifica-
tions 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 LTC4065-4.4 functions properly at 3.75V, full charge
current requires an input voltage greater than the desired final battery
voltage per the
VUVCL1 specification.
Note 5: IC/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.
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