ltc4076 Linear Technology Corporation, ltc4076 Datasheet - Page 4

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

LTC4076
TYPICAL PERFOR A CE CHARACTERISTICS
4
1.008
1.006
1.004
1.002
1.000
0.998
0.996
0.994
0.992
4.26
4.24
4.22
4.20
4.18
4.16
4.14
4.12
4.10
900
800
700
600
500
400
300
200
100
0
–50
0
0
Regulated Output (Float) Voltage
vs Charge Current
IUSB Pin Voltage vs Temperature
(Constant-Current Mode)
Charge Current vs IUSB Pin
Voltage
HPWR = 5V
V
V
HPWR = 5V
USBIN
DCIN
100 200 300
0.2
–25
= V
= 5V
USBIN
R
CHARGE CURRENT (mA)
IDC
TEMPERATURE (°C)
0.4
0
= R
V
= 5V
V
USBIN
V
USBIN
IUSB
IUSB
400
0.6
25
= 4.3V
= 2k
(V)
= 8V
R
500 600 700
IUSB
0.8
50
R
R
R
= 1.25k
W
IDC
IUSB
IUSB
1.0
= 1.25k
75
= 10k
= 2k
4076 G06
4076 G01
4076 G04
U
800
100
1.2
0.206
0.204
0.202
0.200
0.198
0.196
0.194
0.192
4.220
4.215
4.210
4.205
4.200
4.195
4.190
4.185
4.180
0.208
250
200
100
150
50
0
–50
–50
0
Regulated Output (Float) Voltage
vs Temperature
IUSB Pin Voltage vs Temperature
(Constant-Current Mode)
Charge Current vs IUSB Pin
Voltage
HPWR = 0V
V
HPWR = 0V
V
USBIN
DCIN
–25
–25
50
= V
= 5V
USBIN
TEMPERATURE (°C)
TEMPERATURE (°C)
0
0
V
100
V
V
USBIN
= 5V
USBIN
IUSBL
R
IUSB
25
25
= 4.3V
= 8V
(mV)
= 1kΩ
150
50
50
R
R
IUSB
IUSB
200
75
75
= 2kΩ
= 4kΩ
4076 G24
4076 G25
4076 G02
100
250
100
1.008
1.006
1.004
1.002
1.000
0.998
0.996
0.994
0.992
900
800
700
600
500
400
300
200
100
35
30
25
20
15
10
0
5
0
–50
0
0
IDC Pin Voltage vs Temperature
(Constant-Current Mode)
Charge Current vs IDC Pin
Voltage
 P  W  R Pin I-V Curve
V
V
DCIN
DCIN
1
–25
0.2
= V
= 5V
USBIN
2
TEMPERATURE (°C)
0.4
0
V
V
= 5V
DCIN
DCIN
V
V
3
PWR
IDC
0.6
25
= 4.3V
= 8V
(V)
(V)
4
0.8
50
R
5
R
IDC
R
IDC
T
IDC
T
T
A
A
A
= 1.25k
1.0
= – 40°C
75
= 10k
= 25°C
= 90°C
= 2k
6
4076 G05
4076 G07
4076 G03
4076fa
100
1.2
7