LTC4066E View Datasheet(PDF) - Linear Technology
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LTC4066/LTC4066-1
ELECTRICAL CHARACTERISTICS The l denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at TA = 25°C. VIN = 5V, VBAT = 3.7V, HPWR = 5V, WALL = 0V, RPROG = 100k,
RCLPROG = RISTAT = 2k, unless otherwise noted.
SYMBOL PARAMETER
CONDITIONS
MIN TYP MAX UNITS
TLIM
Junction Temperature in Constant
Temperature Mode
105
°C
Ideal Diode
RFWD
RDIO(ON)
VFWD
Incremental Resistance, VON Regulation
On-Resistance VBAT to VOUT
Voltage Forward Drop (VBAT – VOUT)
kDIO,ISTAT
VOFF
IFWD
ID(MAX)
Logic
VOL
VIH
VIL
IPULLDN
VCHG,SD
Ratio of IBAT (Discharging Through Ideal
Diode) to ISTAT Pin Current
Diode Disable Battery Voltage
Load Current Limit for VON Regulation
Diode Current Limit
Output Low Voltage (CHRG, ACPR, POL)
Enable Input High Voltage
Enable Input Low Voltage
Logic Input Pull-Down Current
Charger Shutdown Threshold Voltage on
TIMER
IBAT = 500mA
IBAT = 3A
IBAT = 5mA
IBAT = 200mA
IBAT = 2A
IBAT = 5mA
IBAT = 20mA
VBAT = 3.5V
ISINK = 5mA
SUSP, SHDN, HPWR, CLDIS Pin
SUSP, SHDN, HPWR, CLDIS Pin
SUSP, SHDN, HPWR, CLDIS
27
mΩ
45
mΩ
l 10 30
50
mV
47
mV
95
mV
850 1000 1150 mA/mA
850 1000 1150 mA/mA
2.8
V
2.5
A
3.8 5.2
A
l
0.1 0.25
V
l 1.2
V
l
0.4
V
2
μA
l 0.15
0.4
V
ICHG,SD
Charger Shutdown Pull-Up Current on
TIMER
VTIMER = 0V
l2
4
μA
VWALL
VWALL,HYS
IWALL
NTC
Wall Input Threshold Voltage
Wall Input Hysteresis
Wall Input Leakage Current
VWALL Rising Threshold
VWALL Rising – VWALL Falling Threshold
VWALL = 1V
l 1.200 1.225 1.250
V
35
mV
0
±50
nA
IVNTC
VVNTC
INTC
VCOLD
VHOT
VDIS
VNTC Pin Current
VNTC Bias Voltage
NTC Input Leakage Current
Cold Temperature Fault Threshold Voltage
Hot Temperature Fault Threshold Voltage
NTC Disable Voltage
VVNTC = 2.5V
IVNTC = 500μA
VNTC = 1V
Rising Threshold
Hysteresis
Falling Threshold
Hysteresis
NTC Input Voltage to GND (Falling)
Hysteresis
1.5 2.5 3.5
mA
l 4.4 4.85
V
0
±1
μA
0.74 • VVNTC
V
0.02 • VVNTC
V
0.29 • VVNTC
V
0.01 • VVNTC
V
l 75 100 125
mV
35
mV
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: VCC is the greater of VIN, VOUT or VBAT.
Note 3: Pins 1, 3 and 8 (OUT) should be tied together with a low
impedance to ensure that the difference between the three pins does not
exceed 50mV. Pins 2, 4 and 5 (BAT) should be tied together with a low
impedance to ensure that the difference between the three pins does not
exceed 50mV.
Note 4: All voltage values are with respect to GND.
Note 5: 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 specified maximum operating junction
temperature may impair device reliability.
Note 6: The LTC4066/LTC4066-1 are 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 7: Guaranteed by long term current density limitations.
Note 8: Total input current is equal to this specification plus 1.003 × IBAT
where IBAT is the charge current.
Note 9: Accuracy of programmed current may degrade for currents greater
than 1.5A.
4066fc
4
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