參數(shù)資料
型號： LTC4075XEDD
廠商： LINEAR TECHNOLOGY CORP
元件分類： 電源管理
英文描述： 1-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO10
封裝： 3 X 3 MM, 0.75 MM HEIGHT, PLASTIC, MO-229WEED-2, DFN-10
文件頁數(shù)： 10/16頁
文件大小： 195K
代理商： LTC4075XEDD
LTC4075/LTC4075X
3
4075Xfa
SYMBOL
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
ITRIKL
Trickle Charge Current (Note 6)
VBAT < VTRIKL; RIDC = 1.25k
60
80
100
mA
VBAT < VTRIKL; RIUSB = 2.1k
30
47.5
65
mA
VTRIKL
Trickle Charge Threshold (Note 6)
VBAT Rising
2.8
2.9
3
V
Hysteresis
100
mV
VUVDC
DCIN Undervoltage Lockout Voltage
From Low to High
4
4.15
4.3
V
Hysteresis
200
mV
VUVUSB
USBIN Undervoltage Lockout Voltage
From Low to High
3.8
3.95
4.1
V
Hysteresis
200
mV
VASD-DC
VDCIN – VBAT Lockout Threshold
VDCIN from Low to High, VBAT = 4.2V
140
180
220
mV
VDCIN from High to Low, VBAT = 4.2V
20
50
80
mV
VASD-USB
VUSBIN – VBAT Lockout Threshold
VUSBIN from Low to High, VBAT = 4.2V
140
180
220
mV
VUSBIN from High to Low, VBAT = 4.2V
20
50
80
mV
VENABLE
ENABLE Input Threshold Voltage
0.4
0.7
1
V
RENABLE
ENABLE Pulldown Resistance
●
1.2
2
5
M
Ω
VCHRG
CHRG Output Low Voltage
ICHRG = 5mA
0.35
0.6
V
VPWR
PWR Output Low Voltage
IPWR = 5mA
0.35
0.6
V
VUSBPWR
USBPWR Output Low Voltage
IUSBPWR = 300A
0.35
0.6
V
ΔVRECHRG
Recharge Battery Threshold
VFLOAT – VRECHRG, 0°C < TA < 85°C
65
100
135
mV
tRECHRG
Recharge Comparator Filter Time
VBAT from High to Low
3
6
9
ms
tTERMINATE
Termination Comparator Filter Time
IBAT Drops Below Termination Threshold
0.8
1.5
2.2
ms
tSS
Soft-Start Time
IBAT = 10% to 90% Full-Scale
175
250
325
s
RON-DC
Power FET “ON” Resistance
400
m
Ω
(Between DCIN and BAT)
RON-USB
Power FET “ON” Resistance
550
m
Ω
(Between USBIN and BAT)
TLIM
Junction Temperature in
105
°C
Constant-Temperature Mode
The
● denotes the specications which apply over the full operating
temperature range, otherwise specications are at TA = 25°C. VDCIN = 5V, VUSBIN = 5V unless otherwise noted.
Note 1: Absolute Maximum Ratings are those values beyond which the life
of a device may be impaired.
Note 2: The LTC4075E/LTC4075XE are guaranteed to meet the
performance specications from 0°C to 70°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: Failure to correctly solder the exposed backside of the package to
the PC board will result in a thermal resistance much higher than 40°C/W.
See Thermal Considerations.
Note 4: Supply current includes IDC and ITERM pin current (approximately
100A each) but does not include any current delivered to the battery
through the BAT pin.
Note 5: Supply current includes IUSB and ITERM pin current
(approximately 100A each) but does not include any current delivered to
the battery through the BAT pin.
Note 6: This parameter is not applicable to the LTC4075X.
Note 7: Guaranteed by long term current density limitations.
ELECTRICAL CHARACTERISTICS
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