LTC4078/LTC4078X
4
4078xfb
TYPICAL PERFORMANCE CHARACTERISTICS
IUSB Pin Voltage vs Temperature
(Constant-Current Mode)
Charge Current
vs IDC Pin Voltage
Charge Current
vs IUSB Pin Voltage
PWR Pin I-V Curve CHRG 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)
T
A
= 25°C, unless otherwise specifi ed.
I
BAT
(mA)
0
V
FLOAT
(V)
4.20
4.22
900800700600500400300200100
4078x G01
4.18
4.16
4.10
4.12
4.14
4.26
4.24
V
DCIN
= V
USBIN
= 5V
R
IDC
= 1.24k
R
IDC
= R
IUSB
= 2k
TEMPERATURE (°C)
–10
V
FLOAT
(V)
4.210
9070503010
4078x G02
4.180
4.220
4.215
4.200
4.205
4.190
4.195
4.185
V
DCIN
= V
USBIN
= 5V
TEMPERATURE (°C)
–10
V
IDC
(V)
1.004
9070503010
4078x G03
0.992
1.008
1.006
1.000
1.002
0.996
0.998
0.994
V
DCIN
= 5V
TEMPERATURE (°C)
–10
V
IUSB
(V)
1.004
9070503010
4078x G04
0.992
1.008
1.006
1.000
1.002
0.996
0.998
0.994
V
USBIN
= 5V
V
IDC
(V)
0
I
BAT
(mA)
1.20.8 1.00.60.40.2
4078x G05
0
900
800
700
600
500
400
300
200
100
V
DCIN
= 5V
R
IDC
= 1.24k
R
IDC
= 2k
R
IDC
= 10k
V
IUSB
(V)
0
I
BAT
(mA)
1.20.8 1.00.60.40.2
4078x G06
0
900
800
700
600
500
400
300
200
100
V
USBIN
= 5V
R
IUSB
= 1.24k
R
IUSB
= 2k
R
IUSB
= 10k
V
PWR
(V)
0
I
PWR
(mA)
651432
4078x G07
0
60
50
40
30
20
10
V
DCIN
= V
USBIN
= 5V
V
CHRG
(V)
0
I
CHRG
(mA)
651432
4078x G08
0
60
50
40
30
20
10
V
DCIN
= V
USBIN
= 5V
LTC4078/LTC4078X
5
4078xfb
TYPICAL PERFORMANCE CHARACTERISTICS
Charge Current
vs Ambient Temperature
Charge Current
vs Supply Voltage Charge Current vs Battery Voltage
DCIN Power FET On-Resistance
vs Temperature
USBIN Power FET On-Resistance
vs Temperature
ENABLE Pin Threshold Voltage
(On-to-Off) vs Temperature
USBIN Shutdown Current
vs Temperature
DCIN Shutdown Current
vs Temperature
ENABLE Pin Pulldown Resistance
vs Temperature
T
A
= 25°C, unless otherwise specifi ed.
TEMPERATURE (°C)
–10
0
I
BAT
(mA)
100
300
400
500
1000
700
30
70
90
200
800
900
600
10
50
110
130
4078x G10
R
IDC
= R
IUSB
= 2k
R
IDC
= 1.24k
V
DCIN
= V
USBIN
= 5V
V
BAT
= 4V
θ
JA
= 30°C/W
V
DCIN
(V)
4.0
I
BAT
(mA)
500
600
700
7.5 8.0
4078x G11
400
300
0
100
4.5 5.5 6.5 7.05.0 6.0
200
900
800
R
IDC
= 1.24k
V
BAT
= 4V
θ
JA
= 30°C/W
V
BAT
(V)
2.4
I
BAT
(mA)
600
4.54.2
4078x G12
400
0
3.92.7 3.33.0 3.6
200
1000
800
V
DCIN
= V
USBIN
= 5V
R
IDC
= 1.24k
θ
JA
= 30°C/W
TEMPERATURE (°C)
–10
R
DS(ON)
(mΩ)
9070503010
4078x G13
500
800
750
700
650
600
550
V
BAT
= 4V
I
BAT
= 200mA
TEMPERATURE (°C)
–10
R
DS(ON)
(mΩ)
9070503010
4078x G14
800
750
700
900
850
650
600
V
BAT
= 4V
I
BAT
= 200mA
TEMPERATURE (°C)
V
ENABLE
(V)
940
960
980
4078x G15
920
900
860
880
1000
–10 9070503010
V
DCIN
= V
USBIN
= 5V
TEMPERATURE (°C)
–50
I
USBIN
(μA)
40
50
100
4078x G16
30
20
45
55
35
25
–25 25 75050
60
V
ENABLE
= 0V
V
USBIN
= 4.3V
V
USBIN
= 5V
TEMPERATURE (°C)
–50
I
DCIN
(μA)
40
50
100
4078x G17
30
20
45
55
35
25
–25 25 75050
60
V
ENABLE
= 5V
V
DCIN
= 4.3V
V
DCIN
= 5V
TEMPERATURE (°C)
–50
R
ENABLE
(MΩ)
2.3
100
4078x G18
2.1
2.2
1.9
1.6
–25 25 75050
1.7
2.0
1.8
2.4
LTC4078/LTC4078X
6
4078xfb
Undervoltage Lockout Threshold
vs Temperature
Overvoltage Lockout Threshold
vs Temperature
Battery Drain Current
vs Temperature
Recharge Threshold Voltage
vs Temperature
BATDET Voltage/Current
vs Temperature
BATDET Pin Threshold Voltage
(On-to-Off) vs Temperature
TYPICAL PERFORMANCE CHARACTERISTICS
T
A
= 25°C, unless otherwise specifi ed.
–10 9070503010
TEMPERATURE (°C)
V
UV
(V)
4.10
4.15
4078x G19
4.05
4.00
3.85
3.90
3.95
4.25
4.20
DCIN UVLO
USBIN UVLO
–10 9070503010
TEMPERATURE (°C)
V
OV
(V)
4078x G20
5.80
5.90
6.10
5.95
6.00
6.05
5.85
DCIN OVLO
USBIN OVLO
TEMPERATURE (°C)
V
RECHRG
(V)
4.07
4078x G21
4.03
4.11
4.05
4.09
V
DCIN
= V
USBIN
= 5V
–10 9070503010
TEMPERATURE (°C)
–50
I
BAT
(μA)
8.0
100
4078x G22
7.0
6.0
–25 25 75050
9.0
7.5
8.5
6.5
V
DCIN
= V
USBIN
= NOT CONNECTED
V
BAT
= 4.2V
–10 9070503010
TEMPERATURE (°C)
V
BDET
(V)
4078x G23
1.4
1.6
2.0
1.7
1.8
1.9
1.5
V
DCIN
= V
USBIN
= 5V
–10 9070503010
TEMPERATURE (°C)
V
BOC
(V)
I
BATDET
(μA)
4078x G24
4.0
4.2
4.4
4.3
4.1
3.00
4.50
6.00
5.25
3.75
V
DCIN
= V
USBIN
= 5V
V
BOC
I
BATDET

LTC4078EDD#TRPBF

Mfr. #:
Manufacturer:
Analog Devices / Linear Technology
Description:
Battery Management Dual Input HV Li-Ion Charger w/ BAT Detect (No Trickle)
Lifecycle:
New from this manufacturer.
Delivery:
DHL FedEx Ups TNT EMS
Payment:
T/T Paypal Visa MoneyGram Western Union