LTC4055EUF#TRPBF Linear Technology, LTC4055EUF#TRPBF Datasheet - Page 6

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

Specifications of LTC4055EUF#TRPBF

• 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

LTC4055/LTC4055-1
TYPICAL PERFORMANCE CHARACTERISTICS
6
100
120
115
110
105
400
300
200
600
500
100
1.0
0.9
0.8
0.7
0.6
0.5
0.4
0.3
0.2
0.1
90
80
95
85
0
0
–50
–50
0
Regulated Output Voltage-
Recharge Threshold Voltage
vs Temperature
Charging from USB, I
vs V
Charge Current vs Temperature
(Thermal Regulation)
V
V
V
R
R
HPWR = 1
T
V
V
IN
A
IN
OUT
PROG
CLPROG
IN
BAT
JA
0.5
= 25°C
= 5V
–25
= 5V
= 5V
= 37°C/W
BAT
–25
= NO LOAD
= 3.5V
= 100k
1
(LTC4055)
= 100k
0
TEMPERATURE (°C)
TEMPERATURE (°C)
1.5
0
R
R
PROG
PROG
25
V
2
BAT
25
= 100k
2.5
= 50k
(V)
50
BAT
50
3
75
3.5
75
100
4
4055 G10
4055 G13
4055 G16
100
4.5
125
4.2
4.1
4.3
4.0
1000
900
800
700
600
500
400
300
200
100
100
4.5
80
60
40
20
Battery Regulated Output (Float)
Voltage vs Supply Voltage
0
0
T
A
0
0
Charging from USB, Low Power,
I
Ideal Diode Forward Voltage
vs Current and Temperature
= 25°C
BAT
V
V
R
R
HPWR = 0
T
V
V
4.75
IN
OUT
A
BAT
IN
PROG
CLPROG
20
0.5
= 25°C
= 5V
= 0V
vs V
= 3.5V
= NO LOAD
40
= 100k
1
= 100k
BAT
5
60
1.5
LTC4055-1
LTC4055
(LTC4055)
V
80
5.25
V
IN
–50°C
V
FWD
2
BAT
(V)
100
0°C
(mV)
2.5
25°C
(V)
120 140
5.5
3
5.75
3.5
160
75°C
4055 G11
125°C
180
4
4055 G14
4055 G17
6
200
4.5
600
500
400
300
200
100
0
0
Battery Current and Voltage
vs Time (LTC4055)
1000
0.8AHr CELL
V
T
R
900
800
700
600
500
400
300
200
100
1.6
1.4
1.2
1.0
0.8
0.6
0.4
0.2
IN
A
PROG
4.260
20
0
0
= 25°C
= 5V
0
Undervoltage Current Limit,
Charging from V
Ideal Diode Forward Voltage and
Resistance vs Current
T
V
V
T
40
A
= 105k
BAT
IN
A
20
= 25°C
= 25°C
= 0V
60
= 3.5V
4.300
40
TIME (MINUTES)
80
60
100
R
PROG
80
4.340
V
V
FWD
120
V
R
BAT
I
IN
BAT
100
FWD
IN
R
= 50k
(V)
(mV)
PROG
140
, I
120 140
BAT
4.380
160
= 34k
R
R
vs V
PROG
CHRG
PROG
HPWR = 0
180
R
4055 G12
160
DIO(ON)
IN
200
4.420
= 100k
= 100k
180
4055 G15
4055 G18
6
5
4
3
2
1
0
4055fb
200