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LTC4088EDE-2-PBF Datasheet(PDF) 5 Page - Linear Technology

Part # LTC4088EDE-2-PBF
Description  High Effi ciency Battery Charger/USB Power Manager with Regulated Output Voltage
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Manufacturer  LINER [Linear Technology]
Direct Link  http://www.linear.com
Logo LINER - Linear Technology

LTC4088EDE-2-PBF Datasheet(HTML) 5 Page - Linear Technology

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LTC4088-1/LTC4088-2
5
40881fb
PowerPath Switching Regulator
Efficiency vs Output Current
Battery Charging Efficiency vs
Battery Voltage with No External
Load (PBAT/PBUS)
VBUS Current vs VBUS Voltage
(Suspend)
Ideal Diode V-I Characteristics
Ideal Diode Resistance
vs Battery Voltage
Output Voltage vs Output Current
(Battery Charger Disabled)
USB Limited Battery Charge
Current vs Battery Voltage
Battery Drain Current
vs Battery Voltage
TYPICAL PERFOR A CE CHARACTERISTICS TA = 25°C unless otherwise noted.
FORWARD VOLTAGE (V)
0
0.6
0.8
1.0
0.16
408812 G01
0.4
0.2
0
0.04
0.08
0.12
0.20
INTERNAL IDEAL DIODE
WITH SUPPLEMENTAL
EXTERNAL VISHAY
Si2333 PMOS
INTERNAL IDEAL
DIODE ONLY
VBUS = 0V
VBUS = 5V
BATTERY VOLTAGE (V)
2.7
0.15
0.20
0.25
3.9
408812 G02
0.10
0.05
0
3.0
3.3
3.6
4.2
INTERNAL IDEAL DIODE
WITH SUPPLEMENTAL
EXTERNAL VISHAY
Si2333 PMOS
INTERNAL IDEAL
DIODE
OUTPUT CURRENT (mA)
0
4.00
4.25
4.50
800
408812 G03
3.75
3.50
3.25
200
400
600
1000
VBAT = 4V
VBAT = 3.4V
VBUS = 5V
5x MODE
BATTERY VOLTAGE (V)
2.7
500
600
700
3.9
408812 G04
400
300
3.0
3.3
3.6
4.2
200
100
0
VBUS = 5V
RPROG = 1k
RCLPROG = 2.94k
5x USB SETTING,
BATTERY CHARGER SET FOR 1A
USB Limited Battery Charge
Current vs Battery Voltage
BATTERY VOLTAGE (V)
2.7
0
25
50
75
100
125
150
3.0
3.3
3.6
3.9
408812 G05
4.2
VBUS = 5V
RPROG = 1k
RCLPROG = 2.94k
1x USB SETTING,
BATTERY CHARGER SET FOR 1A
BATTERY VOLTAGE (V)
2.7
15
20
25
3.9
408812 G06
10
5
0
3.0
3.3
3.6
4.2
VBUS = 0V
VBUS = 5V
(SUSPEND MODE)
IOUT = 0µA
OUTPUT CURRENT (A)
0.01
40
50
60
70
80
100
0.1
1
408812 G07
90
5x, 10x MODE
1x MODE
VBAT = 3.8V
BATTERY VOLTAGE (V)
2.7
86
88
90
3.9
408812 G08
84
82
80
3.0
3.3
3.6
4.2
RCLPROG = 2.94k
RPROG = 1k
IOUT = 0mA
5x CHARGING
EFFICIENCY
1x CHARGING
EFFICIENCY
VBUS VOLTAGE (V)
1
30
40
50
5
408812 G09
20
10
0
2
3
4
6
IOUT = 0mA


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