ltc4076 Linear Technology Corporation, ltc4076 Datasheet - Page 5

• Manufacturer Part Number: ltc4076
• Description: Dual Input Standalone Battery Charger
• Manufacturer: Linear Technology Corporation

TYPICAL PERFOR A CE CHARACTERISTICS
1000
900
850
800
750
700
650
600
800
600
400
200
35
30
25
20
15
10
5
0
0
–50
2.4
0
 C  H  R  G Pin I-V Curve
 E  N Pin Threshold (Rising) vs
Temperature
Charge Current vs Battery Voltage
V
V
DCIN
DCIN
2.7
–25
1
= V
= V
USBIN
USBIN
3.0
2
TEMPERATURE (°C)
0
V
θ
R
DCIN
JA
IDC
= 5V
= 5V
V
3.3
3
V
CHRG
= 40°C/W
BAT
= 1.25k
= V
25
(V)
3.6
USBIN
4
(V)
50
= 5V
3.9
W
5
T
T
T
A
A
A
= –40°C
75
= 25°C
= 90°C
4.2
6
4076 G14
4076 G08
U
4076 G11
100
4.5
7
1000
800
600
400
200
550
500
450
400
350
300
250
900
850
800
750
700
650
600
0
–50
–50
–50
Charge Current vs Ambient
Temperature
DCIN Power FET “On” Resistance
vs Temperature
HPWR Pin Threshold (Rising) vs
Temperature
HPWR = 5V
V
V
θ
V
I
V
BAT
DCIN
BAT
JA
BAT
DCIN
–25
–25
= 40°C/W
–25
= 200mA
= 4V
= 4V
= V
= V
R
IDC
R
USBIN
USBIN
IDC
0
THERMAL REGULATION
0
TEMPERATURE (°C)
= R
TEMPERATURE (°C)
TEMPERATURE (°C)
0
= 1.25k
IUSB
= 5V
= 5V
25
25
= 2k
25
50
50
ONSET OF
50
75
75
100
75
100
4076 G15
4076 G09
4076 G12
125
125
100
800
750
700
650
600
550
500
450
400
350
900
800
700
600
500
400
300
50
45
40
35
30
25
20
15
10
5
0
–50
–50
4.0
Charge Current vs Supply Voltage
USBIN Power FET “On” Resistance
vs Temperature
DCIN Shutdown Current vs
Temperature
V
I
HPWR = 5V
R
V
θ
BAT
V
BAT
JA
IDC
BAT
V
V
DCIN
4.5
–25
DCIN
DCIN
–25
= 35°C/W
= 200mA
= 1.25k
= 4V
= 4V
= 4.3V
= 8V
= 5V
5.0
0
TEMPERATURE (°C)
TEMPERATURE (°C)
0
5.5
25
V
THERMAL REGULATION
DCIN
6.0
LTC4076
25
50
(V)
6.5
50
75
ONSET OF
7.0
EN = 5V
75
100
7.5
4076 G13
4076 G10
4076 G16
4076fa
5
125
100
8.0