Linear Technology LTC3350, Руководство пользователя

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LTC3350
8
3350fc
For more information www.linear.com/LTC3350
I
IN
and I
CHARGE
vs V
IN
I
CHARGE
vs V
CAP
Charger Efficiency vs V
CAP
I
CHARGE
vs V
CAP
I
IN
and I
CHARGE
vs I
OUT
V
CAP
vs vcapfb_dac
Typical perForMance characTerisTics
V
CAP
vs Temperature Efficiency in Boost Mode
Load Regulation in Boost Mode
T
A
= 25°C, Application Circuit 4 unless otherwise noted.
V
IN
(V)
11
CURRENT (A)
2.9
3.5
36
3350 G04
2.3
1.7
16 21 26 31
I
IN
4.1
125°C
25°C
–40°C
I
OUT
= 1A
V
CAP
= 6V
I
CHARGE
V
CAP
(V)
0
I
CHARGE
(A)
2.50
3.75
8
3350 G06
1.25
0
2 4 6
5.00
V
IN
= 12V
V
IN
= 24V
V
IN
= 35V
I
IN(MAX)
= 2A
I
OUT
= 1A
V
CAP
(V)
0
EFFICIENCY (%)
50
75
7.2
3350 G08
25
0
1.8
3.6 5.4
100
V
IN
= 12V
V
IN
= 24V
V
IN
= 35V
I
IN(MAX)
= 2A
I
OUT
= 0A
V
CAP
(V)
0
I
CHARGE
(A)
2.50
3.75
8
3350 G05
1.25
0
2 4 6
5.00
V
IN
= 12V
V
IN
= 24V
V
IN
= 35V
I
IN(MAX)
= 2A
I
OUT
= 0A
I
OUT
(A)
0
CURRENT (A)
2.50
3.75
3.00
3350 G07
1.25
0
0.75
1.50
2.25
I
IN
5.00
V
IN
= 12V
V
IN
= 24V
V
IN
= 35V
I
IN(MAX)
= 2A
I
CHARGE
vcapfb_dac (CODE)
0 1 2 3 4 5 6 7 8 9 10 11 12 14 13
V
CAP
(V) 5.50
6.75
15
3350 G09
4.25
3.00
8.00
I
CHARGE
= 2A
TEMPERATURE (°C)
–40
V
CAP
(V)
7.200
7.205
130
3350 G10
7.195
7.190
7.185
–6
28 62 96
7.210
capfb_dac = 15
I
CHARGE
= 2A
I
OUT
(A)
25
EFFICIENCY (%)
50
75
100
10
–3
10
–2
10
–1
10
0
10
1
3350 G11
0
V
CAP
= 2V
V
CAP
= 3V
V
CAP
= 4V
APPLICATION CIRCUIT 5
I
OUT
(A)
4.981
V
OUT
(BOOST) (V)
4.988
4.994
5.000
10
–3
10
–2
10
–1
10
0
10
1
3350 G12
4.975
V
CAP
= 2V
V
CAP
= 3V
V
CAP
= 4V
APPLICATION CIRCUIT 5