LTC4066/LTC4066-1
4
4066fc
ELECTRICAL CHARACTERISTICS
The l denotes the specifi cations which apply over the full operating
temperature range, otherwise specifi cations are at T
A
= 25°C. V
IN
= 5V, V
BAT
= 3.7V, HPWR = 5V, WALL = 0V, R
PROG
= 100k,
R
CLPROG
= R
ISTAT
= 2k, unless otherwise noted.
SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
T
LIM
Junction Temperature in Constant
Temperature Mode
105 °C
Ideal Diode
R
FWD
Incremental Resistance, V
ON
Regulation I
BAT
= 500mA 27 mΩ
R
DIO(ON)
On-Resistance V
BAT
to V
OUT
I
BAT
= 3A 45 mΩ
V
FWD
Voltage Forward Drop (V
BAT
– V
OUT
)I
BAT
= 5mA
I
BAT
= 200mA
I
BAT
= 2A
l
10 30
47
95
50 mV
mV
mV
k
DIO,ISTAT
Ratio of I
BAT
(Discharging Through Ideal
Diode) to I
STAT
Pin Current
I
BAT
= 5mA
I
BAT
= 20mA
850
850
1000
1000
1150
1150
mA/mA
mA/mA
V
OFF
Diode Disable Battery Voltage 2.8 V
I
FWD
Load Current Limit for V
ON
Regulation V
BAT
= 3.5V 2.5 A
I
D(MAX)
Diode Current Limit 3.8 5.2 A
Logic
V
OL
Output Low Voltage (CHRG, ACPR, POL) I
SINK
= 5mA
l
0.1 0.25 V
V
IH
Enable Input High Voltage SUSP, SHDN, HPWR, CLDIS Pin
l
1.2 V
V
IL
Enable Input Low Voltage SUSP, SHDN, HPWR, CLDIS Pin
l
0.4 V
I
PULLDN
Logic Input Pull-Down Current SUSP, SHDN, HPWR, CLDIS 2 μA
V
CHG,SD
Charger Shutdown Threshold Voltage on
TIMER
l
0.15 0.4 V
I
CHG,SD
Charger Shutdown Pull-Up Current on
TIMER
V
TIMER
= 0V
l
24 μA
V
WALL
Wall Input Threshold Voltage V
WALL
Rising Threshold
l
1.200 1.225 1.250 V
V
WALL,HYS
Wall Input Hysteresis V
WALL
Rising – V
WALL
Falling Threshold 35 mV
I
WALL
Wall Input Leakage Current V
WALL
= 1V 0 ±50 nA
NTC
I
VNTC
V
NTC
Pin Current V
VNTC
= 2.5V 1.5 2.5 3.5 mA
V
VNTC
V
NTC
Bias Voltage I
VNTC
= 500μA
l
4.4 4.85 V
I
NTC
NTC Input Leakage Current V
NTC
= 1V 0 ±1 μA
V
COLD
Cold Temperature Fault Threshold Voltage Rising Threshold
Hysteresis
0.74 • V
VNTC
0.02 • V
VNTC
V
V
V
HOT
Hot Temperature Fault Threshold Voltage Falling Threshold
Hysteresis
0.29 • V
VNTC
0.01 • V
VNTC
V
V
V
DIS
NTC Disable Voltage NTC Input Voltage to GND (Falling)
Hysteresis
l
75 100
35
125 mV
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: V
CC
is the greater of V
IN
, V
OUT
or V
BAT
.
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 specifi ed maximum operating junction
temperature may impair device reliability.
Note 6: The LTC4066/LTC4066-1 are guaranteed to meet performance
specifi cations from 0°C to 70°C. Specifi cations 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 specifi cation plus 1.003 × I
BAT
where I
BAT
is the charge current.
Note 9: Accuracy of programmed current may degrade for currents greater
than 1.5A.
