LTC1733 查看數據表（PDF） - Linear Technology
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LTC1733 Datasheet PDF : 16 Pages
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LTC1733
ELECTRICAL CHARACTERISTICS TA = 25°C. VCC = 5V unless otherwise noted.
SYMBOL
PARAMETER
CONDITIONS
MIN TYP MAX UNITS
VPROG
ICHRG
VCHRG
VACPR
VFAULT
IC/10
tTIMER
VRECHRG
PROG Pin Voltage
CHRG Pin Weak Pulldown Current
CHRG Pin Output Low Voltage
ACPR Pin Output Low Voltage
FAULT Pin Output Low Voltage
End of Charge Indication Current Level
TIMER Accuracy
Recharge Battery Voltage Threshold
RPROG = 3k, IPROG = 500µA; Current Mode
VCHRG = 1V
ICHRG = 5mA
IACPR = 5mA
IFAULT = 5mA
RPROG = 3k
CTIMER = 0.1µF
Battery Voltage Falling, SEL = 0V
Battery Voltage Falling, SEL = 5V
1.5
V
25
µA
0.35
V
0.35
V
0.35
V
35
50
65
mA
± 10
%
3.9
V
4.0
V
VNTC-HOT
VHOT-HYS
VNTC-COLD
VCOLD-HYS
VNTC-DIS
VDIS-HYS
VSEL-IL
VSEL-IH
TLIM
NTC Pin Hot Threshold Voltage
NTC Pin Hot Hysteresis Voltage
NTC Pin Cold Threshold Voltage
NTC Pin Cold Hystersis Voltage
NTC Pin Disable Threshold Voltage
NTC Pin Disable Hystersis Voltage
SEL Pin Threshold Input Low
SEL Pin Threshold Input High
Junction Temperature in
Constant-Temperature Mode
VNTC Falling
VNTC Rising
VNTC Rising
2.5
V
70
mV
4.375
V
70
mV
100
mV
10
mV
0.3
V
1
V
105
°C
RON
Power MOSFET “ON” Resistance
375
mΩ
Note 1: Absolute Maximum Ratings are those values beyond which the life
of a device may be impaired.
Note 2: The Absolute Maximum BAT Current Rating of 1.6A is guaranteed
by design and current density calculations. The Absolute Maximum PROG
Current Rating is guaranteed to be 1/1000 of BAT current rating by design.
Note 3: The LTC1733E is guaranteed to meet performance specifications
from 0°C to 70°C. Specifications over the –40°C to 85°C operating
temperature range are assured by design, characterization and correlation
with statistical process controls.
Note 4: Failure to solder the exposed backside of the package to the PC
board will result in a thermal resistance much higher than 40°C/W.
Note 5: Supply current includes PROG pin current but does not include
any current delivered to the battery through the BAT pin.
sn1733 1733fs
3
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