LTC4088EDE-PBF Просмотр технического описания (PDF) - Linear Technology
Номер в каталоге
Компоненты Описание
производитель
LTC4088EDE-PBF Datasheet PDF : 24 Pages
| |||
LTC4088
Typical Performance Characteristics TA = 25°C, unless otherwise noted.
Ideal Diode V-I Characteristics
1.0
INTERNAL IDEAL DIODE
WITH SUPPLEMENTAL
0.8
EXTERNAL VISHAY
Si2333 PMOS
0.6
INTERNAL IDEAL
DIODE ONLY
0.4
0.2
0
0
VBUS = 0V
VBUS = 5V
0.04 0.08 0.12 0.16 0.20
FORWARD VOLTAGE (V)
4088 G01
USB Limited Battery Charge
Current vs Battery Voltage
700
600
500
VBUS = 5V
RPROG = 1k
RCLPROG = 2.94k
400
300
200
100
5x USB SETTING,
0 BATTERY CHARGER SET FOR 1A
2.7
3.0
3.3
3.6
3.9
4.2
BATTERY VOLTAGE (V)
4088 G04
PowerPath Switching Regulator
Efficiency vs Output Current
100 VBAT = 3.8V
1x MODE
90
5x, 10x MODE
80
70
60
50
40
0.01
0.1
OUTPUT CURRENT (A)
1
4088 G07
Ideal Diode Resistance
vs Battery Voltage
0.25
0.20
INTERNAL IDEAL
DIODE
0.15
0.10
INTERNAL IDEAL DIODE
WITH SUPPLEMENTAL
0.05
EXTERNAL VISHAY
Si2333 PMOS
0
2.7
3.0
3.3
3.6
3.9
4.2
BATTERY VOLTAGE (V)
4088 G02
USB Limited Battery Charge
Current vs Battery Voltage
150
125
100
VBUS = 5V
RPROG = 1k
RCLPROG = 2.94k
75
50
25
1x USB SETTING,
BATTERY CHARGER SET FOR 1A
0
2.7 3.0
3.3
3.6
3.9
4.2
BATTERY VOLTAGE (V)
4088 G05
Battery Charging Efficiency vs
Battery Voltage with No External
Load (PBAT/PBUS)
90
RCLPROG = 2.94k
RPROG = 1k
88 IOUT = 0mA
5x CHARGING
EFFICIENCY
86
1x CHARGING
84
EFFICIENCY
82
80
2.7
3.0
3.3
3.6
3.9
4.2
BATTERY VOLTAGE (V)
4088 G08
Output Voltage vs Output Current
(Battery Charger Disabled)
4.50
VBAT = 4V
VBUS = 5V
5x MODE
4.25
4.00
VBAT = 3.4V
3.75
3.50
3.25
0
200 400 600 800
OUTPUT CURRENT (mA)
1000
4088 G03
Battery Drain Current
vs Battery Voltage
25
IOUT = 0µA
VBUS = 0V
20
15
10
VBUS = 5V
5
(SUSPEND MODE)
0
2.7
3.0
3.3
3.6
3.9
4.2
BATTERY VOLTAGE (V)
4088 G06
VBUS Current vs VBUS Voltage
(Suspend)
50
IOUT = 0mA
40
30
20
10
0
1
2
3
4
5
6
VBUS VOLTAGE (V)
4088 G09
4088fb
5
Share Link: 