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LTC4066 Datasheet(PDF) 3 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) 3 Page - Linear Technology

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LTC4066/LTC4066-1
3
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
VIN
Input Supply Voltage
IN and OUT
l
4.35
5.5
V
VBAT
Input Voltage
BAT
l
4.3
V
IIN
Input Supply Current
IBAT = IISTAT = 0 (Note 8)
Suspend Mode; SUSP = 2V
Suspend Mode; SUSP = 2V, Wall = 2V, VOUT = 4.8V
Shutdown; SHDN = 2V
l
l
l
l
0.5
50
50
10
1.2
100
100
20
mA
μA
μA
μA
IOUT
Output Supply Current
VOUT = 5V, VIN = 0V, VBAT = 4.3V, TIMER = 0V
l
400
800
μA
BAT
Battery Drain Current
VBAT = 4.3V, Charging Stopped
Suspend Mode; SUSP = 2V
Shutdown; SHDN = 2V
VIN = 0V, BAT Powers OUT, No Load
l
l
l
l
15
15
2.5
55
27
27
5
100
μA
μA
μA
μA
IIN(MAX)
Maximum Input Current Limit
(Note 9)
1.9
2.6
A
VUVLO
Input or Output Undervoltage Lockout
VIN Powers Part, Rising Threshold
VOUT Powers Part, Rising Threshold
l
l
3.6
3.6
3.8
3.8
4
4
V
V
ΔVUVLO
Input or Output Undervoltage Lockout
VIN Rising – VIN Falling or
VOUT Rising – VOUT Falling
125
mV
Current Limit
ILIM
Current Limit
RCLPROG = 2k, HPWR = 5V
RCLPROG = 2k, HPWR = 0V
l
l
475
90
500
100
525
110
mA
mA
RON
ON Resistance VIN to VOUT
HPWR = 5V, 400mA Load
HPWR = 0V, 80mA Load
0.16
0.16
Ω
Ω
VCLPROG
CLPROG Pin Voltage
RCLPROG = 2k
RCLPROG = 1k
l
0.980
0.980
1.000
1.000
1.020
1.020
V
V
ISS
Soft-Start Inrush Current
IN or OUT
10
mA/μs
VALEN
Automatic Current Limit Enable Threshold
Voltage
(VIN – VOUT) VIN Rising
(VIN – VOUT) VIN Falling
25
–85
50
–60
75
–25
mV
mV
Battery Charger
VFLOAT
Regulated Output Voltage
(0°C to 85°C), IBAT = 2mA
IBAT = 2mA
l
4.165
4.158
4.200
4.200
4.235
4.242
V
V
(0°C to 85°C), IBAT = 2mA (LTC4066-1)
IBAT = 2mA (LTC4066-1)
l
4.066
4.059
4.100
4.100
4.134
4.141
V
V
IBAT
Current Mode Charge Current
RPROG = 100k, No Load
RPROG = 50k, No Load
l
l
460
920
500
1000
540
1080
mA
mA
IBAT(MAX)
Maximum Charge Current
(Note 9)
1.5
A
VPROG
PROG Pin Voltage
RPROG = 100k
RPROG = 50k
l
l
0.980
0.980
1.000
1.000
1.020
1.020
V
V
kISTAT
Ratio of IBAT (Charging) to ISTAT
Pin Current
IBAT = 50mA
IBAT = 100mA
IBAT = 500mA
IBAT = 1000mA
l
l
l
l
875
900
925
950
1000
1000
1000
1000
1125
1100
1075
1050
mA/mA
mA/mA
mA/mA
mA/mA
VEOC
End-of-Charge ISTAT Pin Voltage
VBAT = VFLOAT (4.2V, 4.1V for LTC4066-1)
l
94
100
106
mV
ITRIKL
Trickle Charge Current
VBAT = 2V, RPROG = 100k
35
50
60
mA
VTRIKL
Trickle Charge Threshold Voltage
l
2.8
2.9
3
V
VCEN
Charger Enable Threshold Voltage
(VOUT – VBAT) High to Low, VBAT = 4V
(VOUT – VBAT) Low to High, VBAT = 4V
60
90
mV
mV
VRECHRG
Recharge Battery Threshold Voltage
VFLOAT – VRECHRG
l
60
100
130
mV
tTIMER
TIMER Accuracy
VBAT = 4.2V (4.1V for LTC4066-1)
–10
10
%
Recharge Time
Percent of Total Charge Time
50
%
Low-Battery Trickle Charge Time
Percent of Total Charge Time, VBAT < 2.8V
25
%


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