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LTC4066 Datasheet(PDF) 4 Page - Linear Technology

Part # LTC4066
Description  USB Power Controller and Li-Ion Linear Charger with Low Loss Ideal Diode
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Manufacturer  LINER [Linear Technology]
Direct Link  http://www.linear.com
Logo LINER - Linear Technology

LTC4066 Datasheet(HTML) 4 Page - Linear Technology

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LTC4066/LTC4066-1
4
4066fc
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
Incremental Resistance, VON Regulation
IBAT = 500mA
27
RDIO(ON)
On-Resistance VBAT to VOUT
IBAT = 3A
45
VFWD
Voltage Forward Drop (VBAT – VOUT)IBAT = 5mA
IBAT = 200mA
IBAT = 2A
l
10
30
47
95
50
mV
mV
mV
kDIO,ISTAT
Ratio of IBAT (Discharging Through Ideal
Diode) to ISTAT Pin Current
IBAT = 5mA
IBAT = 20mA
850
850
1000
1000
1150
1150
mA/mA
mA/mA
VOFF
Diode Disable Battery Voltage
2.8
V
IFWD
Load Current Limit for VON Regulation
VBAT = 3.5V
2.5
A
ID(MAX)
Diode Current Limit
3.8
5.2
A
Logic
VOL
Output Low Voltage (CHRG, ACPR, POL)
ISINK = 5mA
l
0.1
0.25
V
VIH
Enable Input High Voltage
SUSP, SHDN, HPWR, CLDIS Pin
l
1.2
V
VIL
Enable Input Low Voltage
SUSP, SHDN, HPWR, CLDIS Pin
l
0.4
V
IPULLDN
Logic Input Pull-Down Current
SUSP, SHDN, HPWR, CLDIS
2
μA
VCHG,SD
Charger Shutdown Threshold Voltage on
TIMER
l
0.15
0.4
V
ICHG,SD
Charger Shutdown Pull-Up Current on
TIMER
VTIMER = 0V
l
24
μA
VWALL
Wall Input Threshold Voltage
VWALL Rising Threshold
l
1.200
1.225
1.250
V
VWALL,HYS Wall Input Hysteresis
VWALL Rising – VWALL Falling Threshold
35
mV
IWALL
Wall Input Leakage Current
VWALL = 1V
0
±50
nA
NTC
IVNTC
VNTC Pin Current
VVNTC = 2.5V
1.5
2.5
3.5
mA
VVNTC
VNTC Bias Voltage
IVNTC = 500μA
l
4.4
4.85
V
INTC
NTC Input Leakage Current
VNTC = 1V
0
±1
μA
VCOLD
Cold Temperature Fault Threshold Voltage
Rising Threshold
Hysteresis
0.74 • VVNTC
0.02 • VVNTC
V
V
VHOT
Hot Temperature Fault Threshold Voltage
Falling Threshold
Hysteresis
0.29 • VVNTC
0.01 • VVNTC
V
V
VDIS
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: 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.


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