LTC4068EDD-4.2 Linear Technology, LTC4068EDD-4.2 Datasheet - Page 2

• Manufacturer Part Number: LTC4068EDD-4.2
• Description: IC BATT CHARGER W/PROG TERM 8DFN
• Manufacturer: Linear Technology

Specifications of LTC4068EDD-4.2

• 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: Contains lead / RoHS non-compliant

ABSOLUTE AXI U RATI GS
LTC4068-4.2/LTC4068X-4.2
(Note 1)
Input Supply Voltage (V
PROG, ITERM ................................ – 0.3V to V
BAT ............................................................. –0.3V to 7V
CHRG, ACPR, EN ...................................... –0.3V to 10V
BAT Short-Circuit Duration .......................... Continuous
BAT Pin Current ........................................................ 1A
PROG Pin Current ................................................... 1mA
Maximum Junction Temperature .......................... 125°C
Operating Temperature Range (Note 2) .. – 40°C to 85°C
Storage Temperature Range ................. – 65°C to 125°C
temperature range, otherwise specifications are at T
SYMBOL
V
I
V
I
I
V
V
V
V
V
V
R
V
I
V
V
V
∆V
ELECTRICAL CHARACTERISTICS
2
CC
BAT
TRIKL
TERM
CC
FLOAT
TRIKL
TRHYS
UV
UVHYS
EN(IL)
EN(IH)
ASD
PROG
CHRG
ACPR
EN
RECHRG
PARAMETER
Input Supply Voltage
Input Supply Current
Regulated Output (Float) Voltage
BAT Pin Current
Trickle Charge Current
Trickle Charge Threshold Voltage
Trickle Charge Hysteresis Voltage
V
V
EN Pin Input Low Voltage
EN Pin Input High Voltage
EN Pin Pull-Down Resistor
V
Charge Termination Current Threshold
PROG Pin Voltage
CHRG Pin Output Low Voltage
ACPR Pin Output Low Voltage
Recharge Battery Threshold Voltage
CC
CC
CC
Undervoltage Lockout Voltage
Undervoltage Lockout Hysteresis
– V
BAT
W
Lockout Threshold
CC
) ....................... –0.3V to 10V
W W
CONDITIONS
Charge Mode (Note 4), R
Standby Mode (Charge Terminated)
Shutdown Mode (EN = 5V, V
or V
0°C ≤ T
R
R
Standby Mode, V
Shutdown Mode (EN = 5V, V
V
Sleep Mode, V
V
R
R
From V
V
V
R
R
R
I
I
V
CHRG
ACPR
U
CC
BAT
CC
CC
FLOAT
PROG
PROG
PROG
PROG
TERM
TERM
PROG
A
CC
< V
from Low to High
from High to Low
CC
= 25°C. V
< V
= 5mA
= 5mA
< V
= 10k, Current Mode
= 2k, Current Mode
= 10k, V
= 10k (Note 5)
= 1k
= 5k
= 10k, Current Mode
CC
– V
A
UV
TRIKL
+ 0.3V
≤ 85°C, 4.3V < V
)
Low to High
UV
RECHRG
The
)
, R
CC
BAT
●
CC
PROG
BAT
= 0V
, 0°C ≤ T
denotes specifications which apply over the full operating
Rising (Note 5)
= 5V, unless otherwise noted.
= 4.2V
= 2k (Note 5)
PACKAGE/ORDER I FOR ATIO
Consult LTC Marketing for parts specified with wider operating temperature ranges.
PROG
CC
A
ITERM
CHRG
≤ 85°C
CC
CC
8-LEAD (3mm × 3mm) PLASTIC DFN
T
GND
< 6.5V
BAT
JMAX
EXPOSED PAD IS GROUND (PIN 9)
= 10k
< V
< V
MUST BE SOLDERED TO PCB
= 125°C, θ
1
2
3
4
BAT
BAT
DD PACKAGE
or
TOP VIEW
JA
9
= 40°C/W (NOTE 3)
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
8
7
6
5
EN
ACPR
V
PROG
CC
4.158
4.25
17.5
0.93
MIN
465
150
2.8
3.7
0.4
1.2
92
30
70
90
60
5
U
DD PART MARKING
LTC4068EDD-4.2
LTC4068XEDD-4.2
–2.5
0.35
0.35
TYP
200
100
500
200
100
100
100
0.4
4.2
2.9
3.8
0.7
0.7
25
±1
±1
45
80
30
20
2
1
ORDER PART
NUMBER
W
LBHZ
LBQB
4.242
MAX
3.92
22.5
1.07
500
105
535
300
140
110
140
6.5
0.6
0.6
–6
50
±2
±2
60
50
1
3
1
5
406842fa
UNITS
U
MΩ
mA
mA
mA
mA
mV
mV
mV
mV
mA
mA
mV
µA
µA
µA
µA
µA
V
V
V
V
V
V
V
V
V