Datasheet

LTC4098/LTC4098-1
5
40981fc
TYPICAL PERFORMANCE CHARACTERISTICS
FORWARD VOLTAGE (V)
0
CURRENT (A)
0.6
0.8
1.0
0.16
40981 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
BATTERY VOLTAGE (V)
2.7
RESISTANCE (7)
0.15
0.20
0.25
3.9
40981 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
BATTERY VOLTAGE (V)
2.7
750
800
3.9
40981 G03
700
650
3.0 3.3 3.6 4.2
600
550
500
CURRENT (mA)
V
BUS
= 5V
R
CLPROG
= 3.01k
5x USB SETTING
Ideal Diode V-I Characteristics
Ideal Diode Resistance
vs Battery Voltage
V
OUT
Voltage vs V
OUT
Current
(Battery Charger Disabled)
USB Compliant Load Current
Available Before Discharging Battery
T
A
= 25°C unless otherwise noted.
OUTPUT CURRENT (mA)
0
OUTPUT VOLTAGE (V)
4.00
4.25
4.50
800
40981 G04
3.75
3.50
3.25
200
400
600
BAT = 4V
BAT = 3.4V
V
BUS
= 5V
5x MODE
BATTERY VOLTAGE (V)
2.7
150
160
3.9
40981 G07
140
130
3.0 3.3 3.6 4.2
120
110
100
CURRENT (mA)
V
BUS
= 5V
R
CLPROG
= 3.01k
1x USB SETTING
USB Compliant Load Current
Available Before Discharging Battery
BATTERY VOLTAGE (V)
2.7
500
600
700
3.9
40981 G08
400
300
3.0 3.3 3.6 4.2
200
100
0
CHARGE CURRENT (mA)
V
BUS
= 5V
R
PROG
= 1k
R
CLPROG
= 3.01k
5x USB SETTING,
BATTERY CHARGER SET FOR 1A
LTC4098-1
LTC4098
BATTERY VOLTAGE (V)
2.7
0
CHARGE CURRENT (mA)
25
50
75
100
125
150
3.0 3.3 3.6 3.9
40981 G09
4.2
V
BUS
= 5V
R
PROG
= 1k
R
CLPROG
= 3.01k
1x USB SETTING,
BATTERY CHARGER SET FOR 1A
LTC4098-1
LTC4098
USB Limited Battery Charge
Current vs Battery Voltage
USB Limited Battery Charge
Current vs Battery Voltage
OUTPUT CURRENT (mA)
0
OUTPUT VOLTAGE (V)
3.25
3.50
40981 G05
3.00
2.75
200
400
600
800
3.75
V
BUS
= 5V
BAT = 3V
R
CLPROG
= 3.01k
RPROG = 2k
5x USB SETTING
OUTPUT CURRENT (mA)
0
CHARGE CURRENT (mA)
200
450
40981 G06
–50
–300
200
400
600
800
700
V
BUS
= 5V
BAT = 3V
R
CLPROG
= 3.01k
RPROG = 2k
5x USB SETTING
Battery Charge Current vs V
OUT
Current (Battery Charger Enabled)
V
OUT
Voltage vs V
OUT
Current
(Battery Charger Enabled)