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LTC4059A Datasheet(PDF) 3 Page - Linear Technology

Part # LTC4059A
Description  900mA Linear Li-Ion Battery Chargers with Thermal Regulation in 2 쨈 2 DFN
Download  12 Pages
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Manufacturer  LINER [Linear Technology]
Direct Link  http://www.linear.com
Logo LINER - Linear Technology

LTC4059A Datasheet(HTML) 3 Page - Linear Technology

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LTC4059/LTC4059A
3
4059fa
TYPICAL PERFOR A CE CHARACTERISTICS
Battery Regulation (Float) Voltage
vs Battery Charge Current
IBAT (mA)
0
4.16
4.18
4.20
300
500
4059 G01
4.14
4.12
4.10
100
200
400
4.22
4.24
4.26
VCC = 5V
TA = 25°C
RPROG = 2.43k
TEMPERATURE (
°C)
–50
4.19
4.20
4.21
25
75
4059 G02
4.18
4.17
4.16
–25
0
50
4.22
4.23
4.24
100
VCC = 5V
IBAT = 2mA
RPROG = 2.43k
VCC (V)
4
4.19
4.20
4.21
7
4059 G03
4.18
4.17
4.16
56
4.22
4.23
4.24
8
TA = 25°C
IBAT = 10mA
RPROG = 2.43k
Battery Regulation (Float) Voltage
vs Temperature
Regulated Output (Float) Voltage
vs Supply Voltage
Charge Current vs Input Voltage
Charge Current vs Ambient
Temperature with Thermal
Regulation
VCC (V)
4
0
100
200
300
400
500
600
56
7
8
4059 G04
VBAT = 3.85V
TA = 25°C
THERMAL
LIMITING
RPROG = 2.43k
RPROG = 12.1k
Charge Current vs Battery Voltage
VBAT (V)
2.5
0
100
200
300
400
500
600
3
3.5
4
4.5
4059 G05
Li CC = 5V
LTC4059 ONLY
Li CC = 0V
LTC4059A
VCC = 5V
TA = 25°C
RPROG = 2.43k
AMBIENT TEMPERATURE (
°C)
–50
400
500
600
25
75
4059 G06
300
200
–25
0
50
100
125
100
0
RPROG = 12.1k
RPROG = 2.43k
VCC = 5V
VBAT = 3.85V
THERMAL CONTROL
LOOP IN OPERATION
PROG Pin Voltage vs Temperature
(Constant Current Mode)
PROG Pin Voltage
vs Charge Current
Power FET “ON” Resistance
vs Temperature
IBAT (mA)
0
1.0
1.2
1.4
400
4059 F07
0.8
0.6
100
200
300
500
0.4
0.2
0
VCC = 5V
TA = 25°C
RPROG = 2.43k
TEMPERATURE (
°C)
–50
400
500
600
700
800
1200
1000
–25
025
50
4059 G09
75
100
900
VCC = 5V
IBAT = 100mA
TEMPERATURE (
°C)
–50
1.22
1.23
1.24
25
75
4059 G08
1.21
1.20
–25
0
50
100
125
1.19
1.18
RPROG = 12.1k
RPROG = 2.43k
VCC = 5V
VBAT = 3.85V


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