LTC4068XEDD-4.2#PBF Linear Technology, LTC4068XEDD-4.2#PBF Datasheet - Page 3

• Manufacturer Part Number: LTC4068XEDD-4.2#PBF
• Description: IC CHARGER BATT LI-ON 8-DFN
• Manufacturer: Linear Technology

Specifications of LTC4068XEDD-4.2#PBF

• Function: Charge Management
• Battery Type: Lithium-Ion (Li-Ion)
• Voltage - Supply: 4.25 V ~ 6.5 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 8-WFDFN Exposed Pad
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

temperature range, otherwise specifications are at T
SYMBOL
T
R
t
t
t
ELECTRICAL CHARACTERISTICS
Note 1: Absolute Maximum Ratings are those values beyond which the life
of the device may be impaired.
Note 2: The LTC4068E-4.2/LTC4068XE-4.2 are guaranteed to meet
performance specifications from 0°C to 70°C. Specifications over the
–40°C to 85°C operating temperature range are assured by design,
characterization and correlation with statistical process controls.
TYPICAL PERFOR A CE CHARACTERISTICS
SS
RECHARGE
TERM
LIM
ON
1.015
1.010
0.990
0.985
1.005
1.000
0.995
4
PROG Pin Voltage vs Supply
Voltage (Constant Current Mode)
V
V
T
R
CC
BAT
A
PROG
= 25°C
= 5V
4.5
= 4V
PARAMETER
Junction Temperature in Constant
Temperature Mode
Power FET “ON” Resistance
(Between V
Soft-Start Time
Recharge Comparator Filter Time
Termination Comparator Filter Time
= 10k
5
V
CC
CC
5.5
(V)
and BAT)
6
W
6.5
405842 G01
U
7
1.0075
1.0050
1.0000
0.9975
0.9950
0.9900
1.0100
1.0025
0.9925
CONDITIONS
I
V
I
BAT
BAT
BAT
A
–50
= 0 to I
Drops Below Charge Termination Threshold
PROG Pin Voltage
vs Temperature
= 25°C. V
High to Low
V
V
R
CC
BAT
PROG
= 5V
–25
The
= 4V
BAT
= 10k
●
=1000V/R
CC
TEMPERATURE (°C)
0
denotes specifications which apply over the full operating
= 5V, unless otherwise noted.
Note 3: Failure to solder the exposed backside of the package to the PC
board will result in a thermal resistance much higher than 40°C/W.
Note 4: Supply current includes PROG pin current and ITERM pin current
(approximately 100µA each) but does not include any current delivered to
the battery through the BAT pin (approximately 100mA).
Note 5: This parameter is not applicable to the LTC4068X.
25
PROG
50
LTC4068-4.2/LTC4068X-4.2
75
405842 G02
100
600
500
400
300
200
100
0
0
Charge Current
vs PROG Pin Voltage
MIN
0.75
400
V
T
R
R
CC
A
PROG
TERM
= 25°C
= 5V
0.2
= 2k
= 2k
1000
TYP
0.4
120
600
100
2
V
PROG
0.6
(V)
2500
MAX
4.5
0.8
1
405842 G03
406842fa
UNITS
3
mΩ
ms
°C
1.2
µs
µs