LTC4075 LINER [Linear Technology], LTC4075 Datasheet - Page 3

• Manufacturer Part Number: LTC4075
• Description: Dual Input USB/AC Adapter Standalone Li-Ion Battery Chargers
• Manufacturer: LINER [Linear Technology]

ELECTRICAL CHARACTERISTICS
temperature range, otherwise specifi cations are at T
Note 1: Absolute Maximum Ratings are those values beyond which the life
of a device may be impaired.
Note 2: The LTC4075E/LTC4075XE are guaranteed to meet the
performance specifi cations from 0°C to 70°C. Specifi cations over the
–40°C to 85°C operating temperature range are assured by design,
characterization and correlation with statistical process controls.
Note 3: Failure to correctly solder the exposed backside of the package to
the PC board will result in a thermal resistance much higher than 40°C/W.
See Thermal Considerations.
SYMBOL
V
V
V
R
V
V
V
ΔV
t
t
t
R
R
T
RECHRG
TERMINATE
SS
ASD-DC
ASD-USB
LIM
ENABLE
⎯ C ⎯ H ⎯ R ⎯ G
⎯ P ⎯ W ⎯ R
USBPWR
ENABLE
ON-DC
ON-USB
RECHRG
PARAMETER
V
V
ENABLE Input Threshold Voltage
ENABLE Pulldown Resistance
⎯ C ⎯ H ⎯ R ⎯ G Output Low Voltage
⎯ P ⎯ W ⎯ R Output Low Voltage
USBPWR Output Low Voltage
Recharge Battery Threshold
Recharge Comparator Filter Time
Termination Comparator Filter Time
Soft-Start Time
Power FET “ON” Resistance
(Between DCIN and BAT)
Power FET “ON” Resistance
(Between USBIN and BAT)
Junction Temperature in
Constant-Temperature Mode
DCIN
USBIN
– V
– V
BAT
BAT
Lockout Threshold
Lockout Threshold
A
= 25°C. V
CONDITIONS
V
V
V
V
I
I
I
V
V
I
I
⎯ C ⎯ H ⎯ R ⎯ G
⎯ P ⎯ W ⎯ R
USBPWR
BAT
BAT
DCIN
DCIN
USBIN
USBIN
FLOAT
BAT
The
Drops Below Termination Threshold
= 0 to Full-Scale
from High to Low
= 5mA
from Low to High, V
from High to Low, V
= 5mA
– V
from Low to High
from High to Low
●
DCIN
= 300µA
RECHRG
denotes the specifi cations which apply over the full operating
= 5V, V
Note 4: Supply current includes IDC and ITERM pin current (approximately
100µA each) but does not include any current delivered to the battery
through the BAT pin.
Note 5: Supply current includes IUSB and ITERM pin current
(approximately 100µA each) but does not include any current delivered to
the battery through the BAT pin.
Note 6: This parameter is not applicable to the LTC4075X.
Note 7: Guaranteed by long term current density limitations.
, 0°C < T
USBIN
BAT
A
BAT
< 85°C
= 5V unless otherwise noted.
= 4.2V
= 4.2V
LTC4075/LTC4075X
●
MIN
140
140
175
0.4
1.2
0.8
20
20
65
3
0.35
0.35
0.35
TYP
180
180
100
250
400
550
105
0.7
1.5
50
50
2
6
MAX
220
220
135
325
0.6
0.6
0.6
2.2
80
80
1
5
9
UNITS
4075Xf
3
MΩ
mΩ
mΩ
mV
mV
mV
mV
mV
ms
ms
µs
°C
V
V
V
V