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LTC4077 Datasheet(PDF) 5 Page - Linear Technology

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

LTC4077 Datasheet(HTML) 5 Page - Linear Technology

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LTC4077
5
4077fa
Charge Current vs Supply Voltage
Charge Current vs Battery Voltage
DCIN Power FET “On” Resistance
vs Temperature
USBIN Power FET “On” Resistance
vs Temperature
EN Pin Threshold (Rising) vs
Temperature
HPWR Pin Threshold (Rising) vs
Temperature
DCIN Shutdown Current vs
Temperature
CHRG Pin I-V Curve
Charge Current vs Ambient
Temperature
TYPICAL PERFOR A CE CHARACTERISTICS
4077 G09
1000
800
600
400
200
0
TEMPERATURE (
°C)
–50
25
75
–25
0
50
100
125
HPWR = 5V
VDCIN = VUSBIN = 5V
VBAT = 4V
θJA = 40°C/W
RIDC = 1.25k
RIDC = RIUSB = 2k
ONSET OF
THERMAL REGULATION
4077 G08
VDCIN = VUSBIN = 5V
35
30
25
20
15
10
5
0
TA = –40°C
TA = 25°C
TA = 90°C
VCHRG (V)
0
3
5
1
2
4
6
7
TEMPERATURE (
°C)
–50
25
75
–25
0
50
100
4077 G14
900
850
800
750
700
650
600
VDCIN = VUSBIN = 5V
4077 G15
TEMPERATURE (
°C)
–50
25
75
–25
0
50
100
900
850
800
750
700
650
600
VDCIN = VUSBIN = 5V
4077 G10
VDCIN (V)
900
800
700
600
500
400
300
4.0
5.0
6.0 6.5
4.5
5.5
7.0 7.5 8.0
RIDC = 1.25k
VBAT = 4V
θJA = 35°C/W
ONSET OF
THERMAL REGULATION
TEMPERATURE (
°C)
–50
550
500
450
400
350
300
250
25
75
–25
0
50
100
125
VBAT = 4V
IBAT = 200mA
4077 G12
4077 G13
TEMPERATURE (
°C)
–50
25
75
–25
0
50
100
125
800
750
700
650
600
550
500
450
400
350
VBAT = 4V
IBAT = 200mA
HPWR = 5V
TEMPERATURE (
°C)
–50
25
75
–25
0
50
100
4077 G16
50
45
40
35
30
25
20
15
10
5
0
VDCIN = 8V
VDCIN = 5V
VDCIN = 4.3V
EN = 5V
4077 G11
VBAT (V)
2.4
1000
800
600
400
200
0
3.0
3.6
3.9
2.7
3.3
4.2
4.5
VDCIN = VUSBIN = 5V
θJA = 40°C/W
RIDC = 1.25k



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