Datasheet

LTC4065L/
LTC4065LX/LTC4065L-4.1
3
4065lfb
ELECTRICAL CHARACTERISTICS
The l denotes specifications which apply over the full operating
temperature range, otherwise specifications are T
A
= 25°C. V
CC
= 5V, V
BAT
= 3.8V, V
EN
= 0V unless otherwise specifi ed. (Note 2)
SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
V
CC
V
CC
Supply Voltage (Note 4)
l
3.75 5.5 V
I
CC
Quiescent V
CC
Supply Current V
BAT
= 4.5V (Forces I
BAT
and I
PROG
= 0)
l
120 250 μA
I
CCMS
V
CC
Supply Current in Shutdown V
EN
= 5V
l
20 40 μA
I
CCUV
V
CC
Supply Current in Undervoltage
Lockout
V
CC
< V
BAT
, V
CC
= 3.5V, V
BAT
= 4V
l
611 μA
V
FLOAT
V
BAT
Regulated Output Voltage I
BAT
= 2mA
I
BAT
= 2mA, 0°C < T
A
< 85°C
I
BAT
= 2mA (LTC4065L-4.1)
I
BAT
= 2mA, 0°C < T
A
< 85°C (LTC4065L-4.1)
4.175
4.158
4.075
4.058
4.2
4.2
4.1
4.1
4.225
4.242
4.125
4.142
V
V
V
V
I
BAT
BAT Pin Current R
PROG
= 13.3k (0.1%), Current Mode
R
PROG
= 1.33k (0.1%), Current Mode
l
l
13.5
148
15.5
155
17.5
162
mA
mA
I
BMS
Battery Drain Current in Shutdown
Mode
V
EN
= V
CC
l
–1 0 1 μA
I
BUV
Battery Drain Current in Undervoltage
Lockout
V
CC
= 3.5V, V
BAT
= 4V
l
014 μA
V
UVLO
V
CC
Undervoltage Lockout Voltage V
CC
Rising
V
CC
Falling
l
l
3.4
2.8
3.6
3.0
3.8
3.2
V
V
V
PROG
PROG Pin Voltage R
PROG
= 1.33k, I
PROG
= 0.75mA
R
PROG
= 13.3k, I
PROG
= 75μA
l
l
0.98
0.98
1
1
1.02
1.02
V
V
V
ASD
Automatic Shutdown Threshold Voltage (V
CC
– V
BAT
), V
CC
Low to High
(V
CC
– V
BAT
), V
CC
High to Low
60
15
80
30
100
45
mV
mV
V
MSH
Manual Shutdown High Voltage V
EN
Rising 1 V
V
MSL
Manual Shutdown Low Voltage V
EN
Falling 0.6 V
R
EN
EN Pin Input Resistance
l
0.9 1.5 3.3 MΩ
t
SS
Soft-Start Time 170 μs
I
TRKL
Trickle Charge Current V
BAT
= 2V, R
PROG
= 1.33k (0.1%) (Note 7) 13 15.5 18 mA
V
TRKL
Trickle Charge Threshold Voltage V
BAT
Rising (Note 7)
l
2.7 2.9 3.05 V
V
TRHYS
Trickle Charge Hysteresis Voltage (Note 7) 90 mV
ΔV
RECHRG
Recharge Battery Threshold Voltage V
FLOAT
– V
RECHRG
, 0°C < T
A
< 85°C 70 100 130 mV
ΔV
UVCL1
ΔV
UVCL2
(V
CC
– V
BAT
) Undervoltage Current
Limit
I
BAT
= 90%, R
PROG
= 2k, Programmed Charge Current
I
BAT
= 10%, R
PROG
= 2k, Programmed Charge Current
150
80
190
125
300
150
mV
mV
t
TIMER
Termination Timer
l
3 4.5 6 Hrs
Recharge Time
l
1.5 2.25 3 Hrs
Low-Battery Trickle Charge Time V
BAT
= 2.5V
l
0.75 1.125 1.5 Hrs
V
CHRG
CHRG Pin Output Low Voltage I
CHRG
= 5mA
l
60 105 mV