Datasheet

LTC4085-3/LTC4085-4
5
408534fb
Input Supply Current
vs Temperature
Input Supply Current vs
Temperature (Suspend Mode)
Battery Drain Current
vs Temperature
(BAT Powers OUT, No Load)
Input Current Limit
vs Temperature, HPWR = 5V
Input Current Limit
vs Temperature, HPWR = 0V
CLPROG Pin Voltage
vs Temperature
PROG Pin Voltage
vs Temperature V
FLOAT
Load Regulation
Battery Regulation (Float)
Voltage vs Temperature
T
A
= 25°C unless otherwise noted.
TYPICAL PERFORMANCE CHARACTERISTICS
TEMPERATURE (°C)
–50
0
I
IN
(µA)
100
300
400
500
50
900
408534 G01
200
0
–25
75
25 100
600
700
800
V
IN
= 5V
V
BAT
= 3.95V
R
PROG
= 100k
R
CLPROG
= 2k
TEMPERATURE (°C)
–50
70
60
50
40
30
20
10
0
25 75
408534 G02
25 0
50 100
I
IN
(µA)
V
IN
= 5V
V
BAT
= 3.95V
R
PROG
= 100k
R
CLPROG
= 2k
SUSP = 5V
TEMPERATURE (°C)
–50
0
I
BAT
(µA)
20
40
60
–25
0
25 50
408534 G03
75
80
100
10
30
50
70
90
100
V
IN
= 0V
V
BAT
= 3.95V
TEMPERATURE (°C)
–50
475
I
IN
(mA)
485
495
505
515
525
–25
02550
408534 G04
75 100
V
IN
= 5V
V
BAT
= 3.7V
R
PROG
= 100k
R
CLPROG
= 2k
TEMPERATURE (°C)
–50
I
IN
(mA)
92
96
100
–25
0
25 50
408534 G05
75
104
108
110
90
94
98
102
106
100
V
IN
= 5V
V
BAT
= 3.7V
R
PROG
= 100k
R
CLPROG
= 2k
TEMPERATURE (°C)
–50
0
V
CLPROG
(V)
0.2
0.4
0.6
0.8
1.2
–25
02550
408534 G06
75 100
1.0
V
IN
= 5V
R
CLPROG
= 2k
HPWR = 5V
HPWR = 0V
TEMPERATURE (°C)
–50
V
PROG
(V)
0.995
1.000
1.005
25
75
408534 G07
0.990
0.985
0.980
–25 0 50
1.010
1.015
1.020
100
V
IN
= 5V
V
BAT
= 3.80V
R
PROG
= 100k
R
CLPROG
= 2k
I
BAT
(mA)
0
3.75
V
FLOAT
(V)
3.80
3.85
3.90
3.95
4.00
4.05
200 400 600 800
408534 G08
1000
R
PROG
= 34k
TEMPERATURE (°C)
–50
VFLOAT (V)
3.945
3.950
3.955
25
75
408534 G09
3.940
3.935
3.930
–25 0 50
3.960
3.965
3.970
100
V
IN
= 5V
I
BAT
= 2mA