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LTC4080 Datasheet(PDF) 5 Page - Linear Technology

Part # LTC4080
Description  500mA Standalone Li-Ion Charger with Integrated 300mA Synchronous Buck
PDF  20 Pages
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Manufacturer  LINER [Linear Technology]
Direct Link  http://www.linear.com
Logo LINER - Linear Technology

LTC4080 Datasheet(HTML) 5 Page - Linear Technology

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LTC4080
5
4080fb
INPUT VOLTAGE (V)
4
4.20
5.5
4.05
3.95
4.5
5
3.90
3.85
4.25
4.15
4.10
4.00
6
4080 G03
CHARGE CURRENT (mA)
0
4.17
4.18
4.21
4.20
150
4080 G01
4.16
4.15
50
100
200
250
4.14
4.13
4.19
RPROG = 2k
TEMPERATURE (
°C)
–50
4.195
10
4.180
4.170
– 30
– 10
30
4.165
4.160
4.210
4.205
4.200
4.190
4.185
4.175
50
70
90
4080 G02
TEMPERATURE (
°C)
–50
200
250
100
150
100
0
–25
50
125
25
75
50
0
4080 G04
VCC = 6V
VBAT = 3V
RPROG = 2k
THERMAL CONTROL
LOOP IN OPERATION
CHARGE CURRENT (mA)
0
0.6
0.8
1.0
175
0.4
0.2
0
25
75
125
50
100
150
200
4080 G05
RPROG = 2k
TEMPERATURE (
°C)
–50
0.7
10
0.4
0.2
– 30
–10
30
0.1
0
0.9
0.8
0.6
0.5
0.3
50
70
90
4080 G06
VCC = 4V
IBAT = 350mA
TEMPERATURE (
°C)
–50
0.50
0.55
0.65
0.70
0.75
30
0.95
0.60
–10
–30
50
70
10
90
0.80
0.85
0.90
4080 G07
FALLING
RISING
TEMPERATURE (
°C)
1.0
1.1
1.3
1.4
1.5
1.7
1.2
1.6
4080 G08
–50
30
–10
–30
50
70
10
90
Battery Regulation (Float) Voltage
vs Charge Current
Battery Regulation (Float) Voltage
vs Temperature
Battery Regulation (Float) Voltage
vs Supply Voltage
Charge Current vs Temperature
with Thermal Regulation
(Constant-Current Mode)
PROG Pin Voltage
vs Charge Current
Charger FET On-Resistance
vs Temperature
⎯E⎯N⎯_⎯C⎯H⎯R⎯G, EN_BUCK and
MODE Pin Threshold Voltage
vs Temperature
⎯E⎯N⎯_⎯C⎯H⎯R⎯G Pin Pulldown
Resistance vs Temperature
Charge Current
vs Battery Voltage
BATTERY VOLTAGE (V)
0
150
200
250
4
100
50
0
1
2
3
5
4080 G02a
RPROG = 2k
VBAT RISING
TRICKLE CHARGE
TYPICAL PERFORMANCE CHARACTERISTICS
(TA = 25°C, VCC = 5V, VBAT = 3.8V, unless otherwise specified)



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