ltc4078 Linear Technology Corporation, ltc4078 Datasheet - Page 2

• Manufacturer Part Number: ltc4078
• Description: Dual Input Li-ion Battery Charger With Overvoltage Protection
• Manufacturer: Linear Technology Corporation

ABSOLUTE MAXIMUM RATINGS
temperature range, otherwise specifi cations are at T
LTC4078/LTC4078X
(Note 1)
Input Supply Voltage (DCIN, USBIN) ............–0.3 to 22V
ENABLE, CHRG, PWR, BATDET, BAT ...............–0.3 to 6V
IDC, IUSB, ITERM Pin Current .................................1mA
DCIN, USBIN, BAT Pin Current ....................................1A
BAT Short-Circuit Duration ............................Continuous
Maximum Junction Temperature........................... 125°C
Operating Temperature Range (Note 2).... –40°C to 85°C
Storage Temperature Range ................... –65°C to 125°C
ORDER INFORMATION
ELECTRICAL CHARACTERISTICS
SYMBOL
V
V
I
I
V
I
LEAD FREE FINISH
LTC4078XEDD#PBF
LTC4078EDD#PBF
Consult LTC Marketing for parts specifi ed with wider operating temperature ranges.
Consult LTC Marketing for information on non-standard lead based fi nish parts.
For more information on lead free part marking, go to:
For more information on tape and reel specifi cations, go to:
2
DCIN
USBIN
BAT
DCIN
USBIN
FLOAT
PARAMETER
Operating Supply Voltage
Operating Supply Voltage
DCIN Supply Current
USBIN Supply Current
Regulated Output (Float) Voltage
BAT Pin Current
TAPE AND REEL
LTC4078XEDD#TRPBF
LTC4078EDD#TRPBF
http://www.linear.com/leadfree/
PART MARKING
LCYP
LDJY
CONDITIONS
Charge Mode (Note 4), R
Standby Mode; Charge Terminated
Shutdown Mode (ENABLE = 5V)
Overvoltage Mode (V
Charge Mode (Note 5), R
Standby Mode; Charge Terminated, V
Shutdown (V
Overvoltage Mode (V
V
I
I
R
R
R
Standby Mode, Charge Terminated
Shutdown Mode (Charger Disabled)
Sleep Mode (V
BAT
BAT
http://www.linear.com/tapeandreel/
A
DCIN
IDC
IUSB
IDC
= 25°C. V
= 1mA
= 1mA, 0°C < T
= 1.25k, Constant-Current Mode
= 10k or R
> V
= 2.1k, Constant-Current Mode
The
USBIN
DCIN
l
DCIN
DCIN
IUSB
denotes the specifi cations which apply over the full operating
= 2V, ENABLE = 0V)
= 5V, V
= 0V, V
A
= 10k
DCIN
USBIN
PIN CONFIGURATION
< 85°C
IDC
IUSB
= 10V)
PACKAGE DESCRIPTION
10-Lead (3mm × 3mm) Plastic DFN
10-Lead (3mm × 3mm) Plastic DFN
USBIN
= 10V)
USBIN
= 10k
= 10k, V
= 0V)
= 5V unless otherwise noted.
EXPOSED PAD (PIN 11) IS GND, MUST BE SOLDERED TO PCB
DCIN
DCIN
ITERM
USBIN
CHRG
= 2V
= 2V
IUSB
PWR
10-LEAD (3mm × 3mm) PLASTIC DFN
T
JMAX
1
2
3
4
5
= 125°C, θ
l
l
l
l
l
l
l
l
l
DD PACKAGE
TOP VIEW
4.185
4.165
11
JA
MIN
770
455
4.3
4.3
93
= 40°C/W (Note 3)
10
9
8
7
6
–7.5
–7.5
–7.5
TYP
350
350
800
476
100
4.2
4.2
70
40
70
70
40
70
23
TEMPERATURE RANGE
–40°C to 85°C
–40°C to 85°C
DCIN
BAT
IDC
BATDET
ENABLE
4.215
4.235
MAX
800
120
140
800
120
140
830
495
107
–12
–12
–12
5.5
5.5
80
80
40
UNITS
4078xfb
mA
mA
mA
μA
μA
μA
μA
μA
μA
μA
μA
μA
μA
μA
μA
V
V
V
V