LTC4055EUF#PBF Linear Technology, LTC4055EUF#PBF Datasheet - Page 3

• Manufacturer Part Number: LTC4055EUF#PBF
• Description: IC USB PWR MNGR BATT CHRGR 16QFN
• Manufacturer: Linear Technology

Specifications of LTC4055EUF#PBF

• Function: Charge Management
• Battery Type: Lithium-Ion (Li-Ion)
• Voltage - Supply: 4.35 V ~ 5.5 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 16-WQFN Exposed Pad
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

ELECTRICAL CHARACTERISTICS
temperature range, otherwise specifi cations are at T
R
SYMBOL
Current Limit
I
R
V
I
V
ΔV
V
Battery Charger
V
I
I
ΔI
I
V
V
V
V
V
t
T
Ideal Diode
R
R
V
V
I
I
LIM
SS
BAT
BAT(MAX)
TRKL
TIMER
FWD
MAX
PROG
CLEN
ALEN
FLOAT
TRKL
CENI
CENO
UVCL
RECHRG
LIM
FWD
OFF
ON
FWD
DIO,ON
PROG
B
CLEN
/ΔI
O
= R
CLPROG
PARAMETER
Current Limit
ON Resistance V
Programming Pin Voltage
(PROG, CLPROG)
Soft-Start Inrush Current
Input Current Limit Enable Threshold
Input Current Limit Enable Threshold
Automatic Limit Enable Threshold
Voltage
Regulated BAT Voltage
Current Mode Charge Current
Maximum Charge Current
Charge Current Load Dependency
Trickle-Charge Current
Trickle-Charge Threshold Voltage
Input Charger Enable Threshold
Voltage
Output Charger Enable Threshold
Voltage
Input/Output Undervoltage Current Limit I
Recharge Battery Threshold Voltage
TIMER Accuracy
Recharge Time
Low Battery Trickle-Charge Time
Junction Temperature in Constant
Temperature Mode
On Resistance, V
On Resistance V
Voltage Forward Drop (V
Diode Disable Battery Voltage
Load Current Limit for V
Diode Current Limit
= 100k, unless otherwise noted.
BAT
IN
ON
to V
Regulation
to V
OUT
OUT
ON
BAT
Regulation
– V
OUT
)
A
CONDITIONS
R
R
HPWR = 5V, 400mA Load
HPWR = 0V, 80mA Load
R
R
IN or OUT
V
V
(V
(V
(0°C to 85°C) I
I
(0°C to 85°C). I
I
R
R
R
V
R
R
V
(Note 8)
ΔI
V
V
(V
(V
(V
(V
V
C
Percent of Total Charge Time
Percent of Total Charge Time, V
V
V
V
V
V
V
V
V
10% Duty Cycle
BAT
BAT
BAT
WALL
WALL
= 25°C. V
IN
IN
BAT
BAT
FLOAT
TIMER
BAT
BAT
BAT
BAT
BAT
BAT
IN
BAT
CLPROG
CLPROG
CLPROG
CLPROG
PROG
PROG
PROG
PROG
PROG
BAT
IN
IN
IN
IN
OUT
OUT
Rising
Rising – V
= 3.5V
= 2mA (LTC4055)
= 2mA (LTC4055-1)
= I
– V
– V
– V
– V
/ΔI
= 2V, R
Rising
= 3.5V, 100mA Load
= 3.5V, 600mA Load
= 3.5V, 5mA Load
= 3.5V, 100mA Load
= 3.5V, 600mA
Falling
= 3.5V, V
– V
– V
= 2V
= 2V
The
= 100k, HPWR = 5V, No Load
= 100k, HPWR = 0V, No Load
= 100k, V
= 50k, HPWR = 5V, No Load
= 50k, V
CHG
– V
= 0.1μF
OUT
OUT
BAT
BAT
OUT
= 100k, HPWR = 5V
= 100k, HPWR = 0V
= R
= R
BAT
BAT
RECHRG
/2
) High to Low
) Low to High
) V
, I
l
) V
IN1
PROG
PROG
PROG
) High to Low
) Low to High
OUT
IN
OUT
denotes the specifi cations which apply over the full operating
IN
IN
BAT
BAT
OUT
= V
Falling
Rising
OUT
Falling
= 100mA
= 100k
= 100k
= 50k
= 2.8V, Pulsed with
= 2mA (LTC4055)
= 2mA (LTC4055-1)
= 5V, V
IN2
= 5V, V
= 5V, V
IN
IN
= 0V,
= 0V,
BAT
BAT
< 2.8V
= 3.5V, HPWR = 5V, WALL = 0V,
LTC4055/LTC4055-1
l
l
l
l
l
l
l
l
l
l
l
l
l
l
l
l
l
4.165
4.158
4.066
4.059
MIN
0.98
0.98
0.95
4.23
465
–75
445
445
900
900
3.5
2.7
1.4
89
45
30
65
10
25
1.000
1.000
4.200
4.200
4.100
4.100
2.85
TYP
490
125
–50
485
485
980
980
100
±10
105
120
550
0.2
0.2
3.8
4.3
0.1
0.2
2.8
1.8
97
80
45
70
80
70
80
50
25
30
55
5
50
1
1
4.235
4.242
4.134
4.141
MAX
1060
1060
1.02
1.02
1.05
4.37
515
105
–25
525
110
525
135
2.2
60
50
4
75
3
mA/mA
UNITS
mA/μs
4055fb
3
mA
mA
mV
mV
mV
mA
mA
mA
mA
mA
mA
mV
mV
mV
mV
mV
mV
mV
mV
mA
°C
Ω
Ω
%
%
%
Ω
Ω
V
V
V
V
V
V
V
A
V
V
V
A