LTC4055-1_15 Datasheet, PDF (2/24 Pages) Linear Technology – USB Power Controller and Li-Ion Charger

LTC4055/LTC4055-1
ABSOLUTE MAXIMUM RATINGS
(Notes 1, 2, 3, 4, 5)
Terminal Voltage
IN1, IN2, OUT, BAT.................................. –0.3V to 6V
NTC, V_NTC, TIMER,
PROG, CLPROG..................... –0.3V to (VCC + 0.3V)
CHRG, HPWR, SUSP, SHDN,
WALL, ACPR........................................... –0.3V to 6V
IN2........................................................... V_IN1 + 0.1V
Pin Current (DC)
IN1, IN2, OUT, BAT (Note 7) ............................... 1.6A
Operating Temperature Range................. –40°C to 85°C
Maximum Operating Junction Temperature ......... 125°C
Storage Temperature Range.................. –65°C to 125°C
PIN CONFIGURATION
TOP VIEW
16 15 14 13
IN2 1
12 TIMER
BAT 2
11 PROG
17
OUT 3
10 GND
IN1 4
9 CLPROG
5678
UF PACKAGE
16-LEAD (4mm s 4mm) PLASTIC QFN
T_JMAX = 125°C, θ_JA = 37°C/W
EXPOSED PAD (PIN 17) IS GND, MUST BE SOLDERED TO PCB
ORDER INFORMATION
LEAD FREE FINISH
TAPE AND REEL
PART MARKING
PACKAGE DESCRIPTION
LTC4055EUF#PBF
LTC4055EUF#TRPBF
4055
16-Lead (4mm × 4mm) Plastic QFN
LTC4055EUF-1#PBF
LTC4055EUF-1#TRPBF 40551
16-Lead (4mm × 4mm) Plastic QFN
Consult LTC Marketing for parts specified with wider operating temperature ranges.
Consult LTC Marketing for information on non-standard lead based finish parts.
For more information on lead free part marking, go to: http://www.linear.com/leadfree/
For more information on tape and reel specifications, go to: http://www.linear.com/tapeandreel/
TEMPERATURE RANGE
–40°C to 85°C
–40°C to 85°C
ELECTRICAL CHARACTERISTICS The l denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at T_A = 25°C. V_IN1 = V_IN2 = 5V, V_BAT = 3.5V, HPWR = 5V, WALL = 0V,
R_PROG = R_CLPROG = 100k, unless otherwise noted.
SYMBOL
PARAMETER
CONDITIONS
MIN
TYP
MAX
V_IN
Input Supply Voltage
V_BAT
Input Voltage
I_IN
Input Supply Current
IN1, IN2 and OUT
l 4.35
5.5
BAT
l
4.3
V_BAT = 4.2V
l
Suspend Mode
l
Suspend Mode, Wall = 2V, V_OUT = 4.8V
l
Shutdown
l
0.8
1.6
50
100
0.1
0.2
10
20
I_OUT
Output Supply Current
I_BAT
Battery Drain Current
I_LIM(MAX)
Maximum Current Limit
V_OUT = 5V, V_IN1 = V_IN2 = 0V, V_BAT = 4.2V
l
V_BAT = 4.2V, Charging Stopped
l
Suspend Mode
l
Shutdown
l
V_IN1 = V_IN2 = 0V, BAT Powers OUT, No Load l
(Note 8)
450
900
15
30
15
30
2.5
5
50
100
1
V_UVLO
ΔV_UVLO
Input or Output Undervoltage Lockout
Input or Output Undervoltage Lockout
Hysteresis
V_IN Powers Part, Rising Threshold
V_OUT Powers Part, Rising Threshold
V_IN Rising – V_IN Falling or
V_OUT Rising – V_OUT Falling
l 3.5
3.8
4
l 3.5
3.8
4
125
UNITS
V
V
mA
μA
mA
μA
μA
μA
μA
μA
μA
A
V
V
mV
4055fb
2