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LTC4058 Datasheet(PDF) 4 Page - Linear Technology

Part No. LTC4058
Description  Standalone Linear Li-Ion Battery Charger with Thermal Regulation in DFN
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Maker  LINER [Linear Technology]
Homepage  http://www.linear.com
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LTC4058 Datasheet(HTML) 4 Page - Linear Technology

 
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4
LTC4058-4.2/LTC4058X-4.2
sn405842 405842fs
TYPICAL PERFOR A CE CHARACTERISTICS
Regulated Output (Float) Voltage
vs Charge Current
IBAT (mA)
0
4.24
300
405842 G04
4.18
4.14
100
200
400
4.12
4.10
4.26
4.22
4.20
4.16
500
600
700
VCC = 5V
TA = 25°C
RPROG = 1.25k
Regulated Output (Float) Voltage
vs Temperature
TEMPERATURE (
°C)
–50
4.185
4.190
4.195
4.200
4.205
4.215
–25
025
50
405842 G05
75
100
4.210
VCC = 5V
RPROG = 10k
Regulated Output (Float) Voltage
vs Supply Voltage
VCC (V)
4
4.185
4.190
4.195
4.200
4.205
4.215
4.5
5
5.5
6
405842 G06
6.5
7
4.210
TA = 25°C
RPROG = 10k
CHRG Pin I-V Curve
(Pull-Down State)
Trickle Charge Current
vs Temperature
ACPR Pin I-V Curve
(Pull-Down State)
VCHRG (V)
0
20
25
30
35
405842 G07
15
10
12
46
7
5
0
TA = –40°C
TA = 25°C
TA = 90°C
VCC = 5V
VBAT = VBSENSE = 4V
VACPR (V)
0
20
25
30
35
405842 G08
15
10
12
46
7
5
0
TA = –40°C
TA = 25°C
TA = 90°C
VCC = 5V
VBAT = VBSENSE = 4V
TEMPERATURE (
°C)
–50
0
10
20
30
40
60
–25
025
50
405842 G09
75
100
50
VCC = 5V
VBAT = VBSENSE = 2.5V
RPROG = 2k
RPROG = 10k
Trickle Charge Current
vs Supply Voltage
Charge Current vs Battery Voltage
VCC (V)
4
0
10
20
30
40
60
4.5
5
5.5
6
405842 G10
6.5
7
50
VBAT = VBSENSE = 2.5V
TA = 25°C
RPROG = 2k
RPROG = 10k
Trickle Charge Threshold Voltage
vs Temperature
TEMPERATURE (
°C)
–50
2.875
2.900
2.925
25
75
405842 G11
2.850
2.825
2.800
–25
0
50
2.950
2.975
3.000
100
VCC = 5V
RPROG = 10k
VBAT (V)
2.4
400
500
600
3.3
3.9
405842 G08
300
200
2.7
3
3.6
4.2
4.5
100
0
VCC = 5V
θJA = 40°C/W
RPROG = 2k


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