Datasheet

LTC4155
4
4155fc
The l denotes the specifications which apply over the specified operating
junction temperature range, otherwise specifications are at T
A
≈ T
J
= 25°C (Note 2). V
BUS
= 5V, BATSNS = 3.7V, DVCC = 3.3V,
R
CLPROG1
= R
CLPROG2
= 1.21k, R
PROG
= 499Ω, unless otherwise noted.
ELECTRICAL CHARACTERISTICS
SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
Switching Battery Charger
V
BUS
Input Supply Voltage
l
4.35 5.5 V
V
BUSREG
Undervoltage Current Reduction Input Undervoltage Current Limit Enabled 4.30 V
I
VBUSQ
Input Quiescent Current USB Suspend Mode
100mA I
VBUS
Mode, I
VOUT
= 0µA, Charger Off
500mA – 3A I
VBUS
Modes, I
VOUT
= 0µA, Charger Off
0.060
0.560
17
mA
mA
mA
I
BATQ
Battery Drain Current V
BUS
> V
UVLO
, Battery Charger Off, I
VOUT
= 0µA
V
BUS
= 0V, I
VOUT
= 0µA
Storage and Shipment Mode, DVCC = 0V
7.0
2.0
0.6
3.0
1.25
µA
µA
µA
I
VBUSLIM
Total Input Current When Load
Exceeds Power Limit
100mA I
VBUS
Mode (USB Lo Power) (Default)
500mA I
VBUS
Mode (USB Hi Power)
600mA I
VBUS
Mode
700mA I
VBUS
Mode
800mA I
VBUS
Mode
900mA I
VBUS
Mode (USB 3.0)
1.00A I
VBUS
Mode
1.25A I
VBUS
Mode
1.50A I
VBUS
Mode
1.75A I
VBUS
Mode
2.00A I
VBUS
Mode
2.25A I
VBUS
Mode
2.50A I
VBUS
Mode
2.75A I
VBUS
Mode
3.00A I
VBUS
Mode (Default)
2.5mA I
VBUS
Mode (USB Suspend)
l
l
l
65
460
550
650
745
800
950
1150
1425
1650
1900
2050
2350
2550
2800
80
480
570
670
770
850
1000
1230
1500
1750
2000
2175
2475
2725
2950
1.8
100
500
600
700
800
900
1025
1300
1575
1875
2125
2300
2600
2900
3100
2.5
mA
mA
mA
mA
mA
mA
mA
mA
mA
mA
mA
mA
mA
mA
mA
mA
V
FLOAT
BATSNS Regulated Output Voltage
Selected by I
2
C Control.
Switching Modes
4.05V Setting (Default)
4.10V Setting
4.15V Setting
4.20V Setting
l
l
l
l
4.02
4.07
4.12
4.17
4.05
4.10
4.15
4.20
4.08
4.13
4.18
4.23
V
V
V
V
I
CHARGE
Regulated Battery Charge Current
Selected by I
2
C Control
12.50% Charge Current Mode
18.75% Charge Current Mode
25.00% Charge Current Mode
31.25% Charge Current Mode
37.50% Charge Current Mode
43.75% Charge Current Mode
50.00% Charge Current Mode
56.25% Charge Current Mode
62.50% Charge Current Mode
68.75% Charge Current Mode
75.00% Charge Current Mode
81.25% Charge Current Mode
87.50% Charge Current Mode
93.75% Charge Current Mode
100.0% Charge Current Mode (Default)
290
430
590
730
880
1025
1180
1330
1485
1635
1780
1915
2065
2210
2350
315
465
620
770
925
1075
1230
1385
1535
1685
1835
1980
2130
2280
2430
340
500
650
810
970
1125
1280
1440
1585
1735
1890
2045
2195
2350
2500
mA
mA
mA
mA
mA
mA
mA
mA
mA
mA
mA
mA
mA
mA
mA
I
CHARGE(MAX)
Regulated Battery Charge Current 100.0% Charge Current Mode, R
PROG
= 340 3.44 3.57 3.70 A
V
OUT
PowerPath Regulated Output
Voltage (V
BUS
Power Available)
Suspend Mode, I
VOUT
= 1mA
Battery Charger Enabled, Charging, BATSNS ≥ 3.5V
Battery Charger Terminated or Battery Charger
Disabled
4.35
BATSNS
4.35
4.5
4.5
V
V
V
V
OUT(MIN)
Low Battery Instant-On Output
Voltage (V
BUS
Power Available)
Battery Charger Enabled, Charging, BATSNS ≤ 3.3V 3.40 3.50 V