LTC4099 Linear Technology Corporation, LTC4099 Datasheet - Page 6

• Manufacturer Part Number: LTC4099
• Description: I2C Controlled USB Power Manager/Charger
• Manufacturer: Linear Technology Corporation

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LTC4099
TYPICAL PERFORMANCE CHARACTERISTICS
R
6
CLPROG
–200
–400
–600
600
800
700
600
500
400
300
200
100
400
200
25
20
15
10
5
0
0
0
2.7
2.7
0
Battery and V
vs Output Current
Battery Drain Current
vs Battery Voltage
USB Compliant Output Current Available
Before Discharging Battery
I
V
FOR USB 500mA
BATTERY CHARGER SET
FOR 800mA
V
= 3.01k, unless otherwise noted.
VOUT
BUS
BUS
INPUT LIMIT SET
= 0μA
INPUT LIMIT SET FOR USB 500mA
200
3.0
3.0
OUTPUT CURRENT (mA)
BATTERY VOLTAGE (V)
BATTERY VOLTAGE (V)
(DISCHARGING)
400
3.3
3.3
BUS
CURRENT
BATTERY
(CHARGING)
CURRENT
BATTERY
Currents
V
BUS
V
V
(SUSPEND MODES)
600
3.6
3.6
BUS
BUS
CURRENT
= 0V
= 5V
800
3.9
3.9
4099 G04
4099 G07
4099 G01
1000
4.2
4.2
–200
800
600
200
175
150
125
100
400
100
75
50
25
90
80
60
40
70
50
0
0
0.01
2.7
0
PowerPath Switching Regulator
Effi ciency vs Output Current
Battery and V
vs Output Current
USB Compliant Output Current Available
Before Discharging Battery
100mA V
V
V
V
FOR 790mA
BATTERY CHARGER SET
FOR 500mA
CLPROG
BUS
BUS
LIMIT MODE
INPUT LIMIT SET FOR USB 100mA
INPUT LIMIT SET
V
200
3.0
BUS
BUS
= 0V
OUTPUT CURRENT (mA)
OUTPUT CURRENT (A)
BATTERY VOLTAGE (V)
500mA TO 1.2A
INPUT LIMIT MODES
INPUT
400
3.3
BUS
0.1
Currents
V
BUS
600
3.6
(CHARGING)
(DISCHARGING)
CURRENT
CURRENT
BATTERY
CURRENT
BATTERY
800
3.9
T
4099 G05
4099 G08
A
= 25°C, V
4099 G02
1000
4.2
1
BUS
100
700
600
500
400
300
200
100
5.0
4.5
4.0
3.5
3.0
90
80
70
60
50
0
2.7
2.7
= 5V, BAT = 3.8V, R
0
Battery Charging Effi ciency vs
Battery Voltage with No External
Load (P
USB Limited Battery Charge
Current vs Battery Voltage
Output Voltage vs Output Current
V
FOR USB 500mA
BATTERY CHARGER DISABLED
BUS
V
V
BATTERY CHARGER SET FOR 1200mA
INPUT LIMIT SET
FLOAT
BUS
200
3.0
3.0
BAT
INPUT LIMIT SET FOR USB 500mA
OUTPUT CURRENT (mA)
BATTERY VOLTAGE (V)
BATTERY VOLTAGE (V)
VOLTAGE SET FOR 4.2V
BAT = 4V
/P
BAT = 3.4V
400
3.3
3.3
VBUS
500mA USB SETTING
)
100mA USB SETTING
PROG
600
3.6
3.6
= 1.02k,
800
3.9
3.9
4099 G06
4099 G09
4099f
4099 G03
1000
4.2
4.2