SI9122A_08 VISHAY [Vishay Siliconix], SI9122A_08 Datasheet - Page 15

• Manufacturer Part Number: SI9122A_08
• Description: 500-kHz Half-Bridge DC/DC Controller with Integrated Secondary Synchronous Rectification Drivers
• Manufacturer: VISHAY [Vishay Siliconix]

TYPICAL CHARACTERISTICS
Document Number: 73492
S-80038-Rev. D, 14-Jan-08
60
50
40
30
20
10
0
80
70
60
50
40
30
0.0
80
70
60
50
40
30
3.5
3.5
t
BBM3,
V
V
EP
0.2
EP
V
V
I
OUT
= 0 V
OUT
CC
= 0 V
4.5
4.5
t
BBM1, 2
t
= 13 V
I
BBM3, 4
OUT
vs. R
t
t
BBM1,
t
BBM3,
BBM2,
Frequency
0.4
R
LOAD
V
V
LOAD
vs. V
t
V
V
BBM4,
V
vs. V
CC
CC
CC
t
INDET
INDET
BBM2,
D%
5.5
t
= 12 V
BBM4,
= 10 V
5.5
= 12 V
(Ω)
(V
CC
V
CC
0.6
(V)
IN
CC
(V)
V
vs. V
CC
V
vs. V
= 72 V)
= 10 V
CC
= 10 V
t
t
t
BBM1,
BBM4,
t
BBM3,
t
BBM1,
BBM2,
= 13 V
INDET
INDET
6.5
0.8
6.5
V
V
V
V
V
CC
CC
CC
CC
CC
= 13 V
= 12 V
= 12 V
= 10 V
= 13 V
1.0
7.5
7.5
500
400
300
200
100
0
50
45
40
35
30
25
20
15
10
5
0
65
60
55
50
45
40
35
30
55
50
45
40
35
1
3.5
3.5
t
BBM3,
t
V
V
BBM2,
t
BBM4,
ROSC
EP
V
EP
= 1.65 V
V
V
CC
= 1.65 V
, F
V
CC
2
t
CC
4.5
t
4.5
BBM1, 2
= 10 V
BBM3, 4
OSC
= 10 V
D
Frequency
= 10 V
SRL
t
BBM3,
, and Duty Cycle vs. V
V
CLCONT
t
vs. V
vs. V
V
BBM2,
V
ROSC
V
V
INDET
INDET
CC
3
5.5
5.5
CC
CC
V
= 12 V
D%
(V)
CC
(V)
(V)
vs. V
vs. V
D
= 12 V
DL
Vishay Siliconix
t
t
t
t
t
BBM1,
t
BBM3,
t
BBM4,
BBM1,
BBM1,
BBM4,
BBM2,
INDET
INDET
4
6.5
6.5
V
V
V
V
V
V
V
CC
CC
CC
CC
CC
CC
CLCONT
CC
Si9122A
= 13 V
www.vishay.com
= 10 V
= 13 V
= 13 V
= 12 V
= 12 V
= 13 V
5
7.5
7.5
500
400
300
200
100
0
15