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参数资料
| 型号： | LTC4098EUDC#PBF |
| 厂商： | LINEAR TECHNOLOGY CORP |
| 元件分类： | 稳压器 |
| 英文描述： | BATTERY CHARGE CONTROLLER, 2650 kHz SWITCHING FREQ-MAX, PQCC20 |
| 封装： | 4 X 3 MM, 0.75 MM HEIGHT, LEAD FREE, PLASTIC, QFN-20 |
| 文件页数： | 27/32页 |
| 文件大小： | 443K |
| 代理商： | LTC4098EUDC#PBF |
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LTC4098/LTC4098-1
4
40981fc
SYMBOL
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
VPROG
PROG Pin Servo Voltage
1.000
V
VPROG,TRKL
PROG Pin Servo Voltage in Trickle
Charge
BAT < VTRKL
0.100
V
hPROG
Ratio of IBAT to PROG Pin Current
1030
mA/mA
VTRKL
Trickle Charge Threshold Voltage
BAT Rising
2.7
2.85
3
V
ΔVTRKL
Trickle Charge Hystersis Voltage
130
mV
VRECHRG
Recharge Battery Threshold Voltage
Threshold Voltage Relative to VFLOAT
–80
–100
–120
mV
tTERM
Safety Timer Termination Period
Timer Starts When BAT = VFLOAT
3.4
4
4.6
Hour
tBADBAT
Bad Battery Termination Time
BAT < VTRKL
0.43
0.5
0.58
Hour
hC/10
End of Charge Indication Current Ratio
(Note 5)
0.09
0.1
0.11
mA/mA
VCHRG
CHRG Pin Output Low Voltage
ICHRG = 5mA
65
100
mV
ICHRG
CHRG Pin Input Current
BAT = 4.5V, VCHRG = 5V
0
1
μA
RON_CHG
Battery Charger Power FET
On-Resistance (Between VOUT and BAT)
IBAT = 200mA
0.18
Ω
TLIM
Junction Temperature in Constant-
Temperature Mode
110
°C
NTC
VCOLD
Cold Temperature Fault Threshold
Voltage
Rising Threshold
Hysteresis
75.0
76.5
1.5
78.0
%NTCBIAS
VHOT
Hot Temperature Fault Threshold
Voltage
Falling Threshold
Hysteresis
33.4
34.9
1.5
36.4
%NTCBIAS
VDIS
NTC Disable Threshold Voltage
Falling Threshold
Hysteresis
0.7
1.7
50
2.7
%NTCBIAS
mV
INTC
NTC Leakage Current
NTC = 5V
–50
50
nA
Ideal Diode
VFWD
Forward Voltage Detection
IVOUT = 10mA
15
mV
RDROPOUT
Internal Diode On-Resistance, Dropout
IVOUT = 200mA
0.18
Ω
IMAX
Diode Current Limit
2
A
Logic (D0, D1, D2)
VIL
Input Low Voltage
0.4
V
VIH
Input High Voltage
1.2
V
IPD
Static Pull-Down Current
VPIN = 1V
2
μA
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 LTC4098E/LTC4098E-1 are 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: The LTC4098E/LTC4098E-1 include 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 or
permanently damage the device.
Note 4: Total input current, IVBUS(LIM), is equal to IVBUSQ + (VCLPROG/
RCLPROG) (hCLPROG + 1).
Note 5: hC/10 is expressed as a fraction of measured full charge current
with a 5k PROG resistor.
ELECTRICAL CHARACTERISTICS The l denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at TA = 25°C. VBUS = 5V, BAT = 3.8V, RCLPROG = 3.01k, unless otherwise noted.
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