參數(shù)資料
型號(hào)： LTC4090EDJC#TRPBR
廠(chǎng)商： LINEAR TECHNOLOGY CORP
元件分類(lèi)： 電源管理
英文描述： 1-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO22
封裝： 6 X 3 MM, 0.75 MM HEIGHT, LEAD FREE, PLASTIC, MO-229WXXX, DFN-22
文件頁(yè)數(shù)： 24/28頁(yè)
文件大?。?/td> 392K
代理商： LTC4090EDJC#TRPBR
LTC4090
5
4090f
IBAT (mA)
0
4.00
V
FLOAT
(V)
4.05
4.10
4.15
4.20
4.25
4.30
200
400
600
800
4090 G01
1000
RPROG = 34k
TEMPERATURE (
°C)
–50
V
FLOAT
(V)
4.195
4.200
4.205
25
75
4090 G02
4.190
4.185
4.180
–25
0
50
4.210
4.215
4.220
100
VIN = 5V
IBAT = 2mA
TIME (MIN)
0
V
BAT
,V
OUT
,V
CHRGB
(V)
IBAT
(mA)
2
3
200
4090 G03
1
0
50
100
150
5
4
600
900
300
0
1500
1200
VBAT
VOUT
VCHRGB
IBAT
1250mAh
CELL
HVIN = 12V
RPROG = 50k
C/10
TERMINATION
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 LTC4090 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
temperatures will exceed 110°C when overtemperature protection is
active. Continuous operation above the specied maximum operating
junction temperature may result in device degradation or failure.
Note 4: VCC is the greater of VIN, VOUT, and VBAT
Note 5: Guaranteed by long term current density limitations.
Note 6: Total input current is equal to this specication plus 1.002 IBAT
where IBAT is the charge current.
Note 7: Accuracy of programmed current may degrade for currents
greater than 1.5A.
Note 8: This is the minimum voltage across the boost capacitor needed to
guarantee full saturation of the switch.
Note 9: Absolute Maximum Voltage at HVIN and HVEN pins is for non-
repetative 1 second transients; 40V for continuous operation.
ELECTRICAL CHARACTERISTICS The ● denotes the specications which apply over the full operating
temperature range, otherwise specications are at TA = 25°C. HVIN = HVEN = 12V, BOOST = 17V, VIN = HPWR = 5V, VBAT = 3.7V,
RPROG = 100k, RCLPROG = 2k and SUSP = 0V, unless otherwise noted.
SYMBOL
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
NTC
IVNTC
VNTC Pin Current
VNTC = 2.5V
●
1.4
2.5
3.5
mA
VVNTC
VNTC Bias Voltage
IVNTC = 500μA
●
4.4
4.85
V
INTC
NTC Input Leakage Current
NTC = 1V
0
±1
μA
VCOLD
Cold Temperature Fault Threshold
Voltage
Rising NTC Voltage
Hysteresis
0.738 VNTC
0.02 VNTC
V
VHOT
Hot Temperature Fault Threshold
Voltage
Falling NTC Voltage
Hysteresis
0.29 VNTC
0.01 VNTC
V
VDIS
NTC Disable Threshold Voltage
Falling NTC Voltage
Hysteresis
●
75
100
35
125
mV
TYPICAL PERFORMANCE CHARACTERISTICS
VFLOAT Load Regulation
Battery Regulation (Float)
Voltage vs Temperature
Battery Current and Voltage vs
Time
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