LTC4099 Linear Technology Corporation, LTC4099 Datasheet - Page 3

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

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SYMBOL
h
(Note 4)
I
V
V
V
V
f
R
R
I
R
Battery Charger
V
I
I
I
I
I
V
h
ELECTRICAL CHARACTERISTICS
erature range, otherwise specifi cations are at T
otherwise noted.
VOUT
OSC
PEAK
CHG_RANGE
CHG500mA
CHG1200mA
CHG_STEP
BATQ
CLPROG
PROG
CLPROG
UVLO
DUVLO
OUT
PMOS
NMOS
SUSP
FLOAT
PROG,TRKL
PARAMETER
Ratio of Measured V
CLPROG Program Current
V
Discharging Battery
CLPROG Servo Voltage in Current Limit
V
V
Lockout
V
Switching Frequency
PMOS On-Resistance
NMOS On-Resistance
Peak Inductor Current Clamp
Suspend LDO Output Resistance
BAT Regulated Output Voltage
Constant-Current Mode Charge Current
Range
Zero Scale Battery Charge Current
Full-Scale Battery Charge Current
Charge Current I
Battery Drain Current
PROG Pin Servo Voltage in Trickle Charge BAT < V
Ratio of I
OUT
BUS
BUS
OUT
Current Available Before
Undervoltage Lockout
to BAT Differential Undervoltage
Voltage
BAT
to PROG Pin Current
2
C Step Size
BUS
Current to
A
= 25°C. V
CONDITIONS
100mA Mode
500mA Mode
620mA Mode
790mA Mode
1A Mode
1.2A Mode
Low Power Suspend Mode
High Power Suspend Mode
100mA Mode, BAT = 3.3V
500mA Mode, BAT = 3.3V
620mA Mode, BAT = 3.3V
790mA Mode, BAT = 3.3V
1A Mode, BAT = 3.3V
1.2A Mode, BAT = 3.3V
Low Power Suspend Mode
High Power Suspend Mode
Switching Modes
Suspend Modes
Rising Threshold
Falling Threshold
V
V
Switching Modes, 0V < BAT ≤ 4.2V,
I
USB Suspend Modes, I
500mA to 1.2A Input Limit Modes
4.200V Setting Selected by I
4.100V Default Setting
I
I
I
I
V
Regulator On, Battery Charger Off,
I
V
Mode)
VOUT
LIM2/1/0
LIM2/1/0
LIM2/1/0
LIM2/1/0
VOUT
BUS–BAT
BUS–BAT
BUS
BUS
> V
= 0V, I
= 0mA, Battery Charger Off
= 0μA
BUS
The
TRKL
= 101, Selectable by I
= 101, I
= 101, I
= 101
UVLO
Falling Threshold
Rising Threshold
= 5V, BAT = 3.8V, DV
VOUT
l
, PowerPath Switching
denotes the specifi cations which apply over the full operating temp-
CHARGE2/1/0
CHARGE2/1/0
= 0μA (Ideal Diode
VOUT
= 000
= 111
2
= 250μA
C
2
C
CC
= 3.3V, R
l
l
PROG
4.179
4.165
4.079
4.065
1140
MIN
0.23
3.90
1.96
475
1.6
3.5
4.5
= 1.02k, R
BAT + 0.3
500-1200
4.200
4.200
4.100
4.100
0.100
1200
1540
1980
2420
3080
1080
1251
1550
1200
1030
10.9
0.30
2.16
1.18
4.30
4.00
2.25
0.18
0.30
TYP
220
135
672
840
102
200
500
100
4.6
3.7
65
50
16
23
3
CLPROG
LTC4099
= 3.01k, unless
4.221
4.235
4.121
4.135
1260
MAX
0.41
2.46
4.35
2.65
525
4.7
4.7
35
5
mA/mA
mA/mA
mA/mA
mA/mA
mA/mA
mA/mA
mA/mA
mA/mA
mA/mA
UNITS
3
MHz
4099f
mA
mA
mA
mA
mA
mA
mA
mA
mV
mV
mV
mA
mA
mA
mA
μA
μA
V
V
V
V
V
A
V
V
V
V
V