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LTC4077 Datasheet(PDF) 4 Page - Linear Technology

Part # LTC4077
Description  Dual Input Standalone Li-Ion Battery Charger
Download  16 Pages
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Manufacturer  LINER [Linear Technology]
Direct Link  http://www.linear.com
Logo LINER - Linear Technology

LTC4077 Datasheet(HTML) 4 Page - Linear Technology

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LTC4077
4
4077f
IUSB Pin Voltage vs Temperature
(Constant-Current Mode)
Charge Current vs IDC Pin
Voltage
Charge Current vs IUSB Pin
Voltage
⎯P⎯W⎯R Pin I-V Curve
Regulated Output (Float) Voltage
vs Charge Current
Regulated Output (Float) Voltage
vs Temperature
IDC Pin Voltage vs Temperature
(Constant-Current Mode)
TYPICAL PERFOR A CE CHARACTERISTICS
CHARGE CURRENT (mA)
0
800
500 600 700
400
4077 G01
100 200 300
4.26
4.24
4.22
4.20
4.18
4.16
4.14
4.12
4.10
RIDC = 1.25k
RIDC = RIUSB = 2k
VDCIN = VUSBIN = 5V
TEMPERATURE (
°C)
–50
–25
050
25
75
100
4077 G02
4.220
4.215
4.210
4.205
4.200
4.195
4.190
4.185
4.180
VDCIN = VUSBIN = 5V
TEMPERATURE (
°C)
–50
–25
0
50
25
75
100
4077 G03
1.008
1.006
1.004
1.002
1.000
0.998
0.996
0.994
0.992
VDCIN = 8V
VDCIN = 4.3V
4077 G04
TEMPERATURE (
°C)
–50
–25
0
50
25
75
100
1.008
1.006
1.004
1.002
1.000
0.998
0.996
0.994
0.992
VUSBIN = 8V
HPWR = 5V
VUSBIN = 4.3V
IUSBL Pin Voltage vs Temperature
(Constant-Current Mode)
TEMPERATURE (
°C)
–50
25
75
4077 G24
–25
0
50
0.204
0.202
0.200
0.198
0.196
0.194
0.192
0.206
0.208
100
VUSBIN = 8V
HPWR = 0V
VUSBIN = 4.3V
VIDC (V)
0
0.2
0.6
1.0
0.8
900
800
700
600
500
400
300
200
100
0
4077 G05
0.4
1.2
VDCIN = 5V
RIDC = 1.25k
RIDC = 2k
RIDC = 10k
900
800
700
600
500
400
300
200
100
0
VIUSB (V)
0
0.2
0.6
1.0
0.8
0.4
1.2
4077 G06
VUSBIN = 5V
HPWR = 5V
RIUSB = 1.25k
RIUSB = 2k
RIUSB = 10k
Charge Current vs IUSBL Pin
Voltage
VIUSBL (mV)
0
150
200
250
200
4077 G25
100
50
0
50
100
150
250
VUSBIN = 5V
HPWR = 0V
RIUSBL = 1k9
RIUSBL = 2k9
RIUSBL = 4k9
VPWR (V)
0
35
30
25
20
15
10
5
0
35
4077 G07
12
46
7
VDCIN = VUSBIN = 5V
TA = –40°C
TA = 25°C
TA = 90°C


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