參數(shù)資料
型號： LTC4095EDC#TRM
廠商： LINEAR TECHNOLOGY CORP
元件分類： 電源管理
英文描述： 1-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO8
封裝： 2 X 2 MM, 0.75 MM HEIGHT, PLASTIC, DFN-8
文件頁數(shù)： 10/16頁
文件大小： 225K
代理商： LTC4095EDC#TRM
LTC4095
3
4095fa
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 LTC4095 is guaranteed to meet performance specications
from 0°C to 85°C. Specications over the –40°C to 85°C operating
temperature range are assured by design, characterization and correlation
with statistical process controls.
Note 3: 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 specied maximum operating junction
temperature may impair device reliability.
ELECTRICAL CHARACTERISTICS The ● denotes the specications which apply over the full operating
temperature range, otherwise specications are at TA = 25°C. IN = HPWR = 5V, BAT = 3.8V, NTC = SUSP = 0V, RPROG = 1.74k unless
otherwise specied.
SYMBOL
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
tRECHRG
Recharge Comparator Filter Time
BAT Falling
1.7
ms
tTERM
Safety Timer Termination Period
BAT = VFLOAT
3.5
4
4.5
Hour
tBADBAT
Bad-Battery Termination Time
BAT < VTRKL
0.4375
0.5
0.5625
Hour
hC/10
End of Charge Indication Current Level
(Note 5)
0.09
0.1
0.11
mA/mA
tC/10
End of Charge Comparator Filter Time
IBAT Falling
2.2
ms
RON_CHG
Battery Charger Power FET On-
Resistance (Between IN and BAT)
IBAT = 200mA
500
mΩ
TLIM
Junction Temperature in Constant
Temperature
115
°C
NTC
VCOLD
Cold Temperature Fault Threshold
Voltage
Rising NTC Voltage
Hysteresis
0.750 IN 0.765 IN
0.016 IN
0.780 IN
V
VHOT
Hot Temperature Fault Threshold
Voltage
Falling NTC Voltage
Hysteresis
0.334 IN 0.349 IN
0.016 IN
0.364 IN
V
VDIS
NTC Disable Threshold Voltage
Falling NTC Voltage
Hysteresis
●
0.007 IN 0.017 IN
0.010 IN
0.027 IN
mV
INTC
NTC Leakage Current
NTC = IN = 5V
–1
0
1
A
Logic (HPWR, SUSP, CHRG)
VIL
Input Low Voltage
HPWR, SUSP Pins
0.4
V
VIH
Input High Voltage
HPWR, SUSP Pins
1.2
V
RDN
Logic Pin Pull-Down Resistance
HPWR, SUSP Pins
●
1.9
3.6
6.3
MΩ
CHRG
CHRG Pin Output Low Voltage
ICHRG = 5mA
100
250
mV
ICHRG
CHRG Pin Input Current
BAT = 4.5V, CHRG = 5V
0
1
A
Note 4: IN supply current does not include current through the PROG pin
or any current delivered to the battery through the BAT pin. Total input
current is equal to this specication plus 1.00125 IBAT where IBAT is the
charge current.
Note 5: hC/10 is expressed as a fraction of measured full charge current
with indicated PROG resistor.
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