Datasheet

LTC4160/LTC4160-1
3
41601fa
ELECTRICAL CHARACTERISTICS
SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
I
VOUT(POWERPATH)
V
OUT
Current Available Before
Discharging Battery
1x Mode, BAT = 3.3V
5x Mode, BAT = 3.3V
10x Mode, BAT = 3.3V
Suspend Mode 0.26
121
667
1217
0.34 0.43
mA
mA
mA
mA
V
CLPROG
CLPROG Servo Voltage in Current Limit Switching Modes
Suspend Mode
1.183
100
V
mV
V
UVLO
V
BUS
Undervoltage Lockout Rising Threshold
Falling Threshold 3.95
4.3
4
4.35 V
V
V
DUVLO
V
BUS
To BAT Differential Undervoltage
Lockout
Rising Threshold
Falling Threshold
200
50
mV
mV
V
OUT
V
OUT
Voltage 1x, 5x, 10x Modes, 0V < BAT ≤ 4.2V,
I
VOUT
= 0mA, Battery Charger Off
USB Suspend Mode, I
VOUT
= 250µA
3.5
4.5
BAT + 0.3
4.6
4.7
4.7
V
V
f
OSC
Switching Frequency 1.8 2.25 2.7 MHz
R
PMOS_POWERPATH
PMOS On-Resistance 0.18 Ω
R
NMOS_POWERPATH
NMOS On-Resistance 0.3 Ω
I
PEAK_POWERPATH
Peak Inductor Current Clamp 1x Mode (Note 5)
5x Mode (Note 5)
10x Mode (Note 5)
1
1.6
3
A
A
A
R
SUSP
Suspend LDO Output Resistance Closed Loop 10 Ω
PowerPath Switching Regulator – Step-Up Mode (USB On-The-Go)
V
BUS
Output Voltage 0 ≤ I
VBUS
≤ 500mA, V
OUT
> 3.2V 4.75 5.25 V
V
OUT
Input Voltage 2.9 4.2 V
I
VBUS
Output Current Limit
l
550 680 mA
I
PEAK
Peak Inductor Current Limit (Note 5) 1.8 A
I
OTGQ
V
OUT
Quiescent Current V
OUT
= 3.8V, I
VBUS
= 0mA (Note 6) 1.6 mA
V
CLPROG
Output Current Limit Servo Voltage 1.15 V
V
OUTUVLO
V
OUT
UVLO – V
OUT
Falling
V
OUT
UVLO – V
OUT
Rising
2.5 2.6
2.8 2.9
V
V
t
SCFAULT
Short Circuit Fault Delay PMOS Switch Off 7.2 ms
Overvoltage Protection
V
OVCUTOFF
Overvoltage Protection Threshold With 6.2k Series Resistor 6.1 6.42 6.7 V
V
OVGATE
OVGATE Output Voltage V
OVSENS
< V
OVCUTOFF
V
OVSENS
> V
OVCUTOFF
1.88 • V
OVSENS
0
12 V
V
t
RISE
OVGATE Time To Reach Regulation OVGATE C
LOAD
= 1nF 1.25 ms
Battery Charger
V
FLOAT
BAT Regulated Output Voltage LTC4160
l
4.179
4.165
4.2
4.2
4.221
4.235
V
V
LTC4160-1
l
4.079
4.065
4.1
4.1
4.121
4.135
V
V
I
CHG
Constant Current Mode Charger Current R
PROG
= 845Ω, 10x Mode R
CLPROG
≤ 2.49k
R
PROG
= 5k, 5x or 10x Mode
1120
185
1219
206
1320
223
mA
mA
I
BAT
Battery Drain Current V
BUS
> V
UVLO
, Suspend Mode,
I
VOUT
= 0µA
3.8 6 µA
V
BUS
= 0V, I
VOUT
= 0µA
(Ideal Diode Mode)
8 12 µA
The l denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at T
A
= 25°C (Note 2). V
BUS
= 5V, BAT = 3.8V, R
CLPROG
= 3.01k, unless otherwise noted.