Datasheet

4
2
8
3
9
12
28
1
26
27
24
23
21
22
7
5
19
6
11
13
15
14
18
17
16
20
IC1
LM5642
10
+
25
C
1
C
34
R
28
C
11
R
27
R
23
C
27
C
26
C
19
C
2
R
1
Q
1
Q
2
L
1
R
10
R
11
C
3
R
2
R
7
C
4
R
6
C
6
C
7
D
3A
V
DD
C
9
1 PF
100
nF
220 k:
22 nF
4.7:
1 PF 4.7 PF
11.5 k:
Si4470DY x 2
Si4850EY
10 PF
50V
2.8Arms
V
IN
10 m:
10 nF
100 pF
16.9 k:
100:
100 pF
100:
100 nF
BAS40-06
2.7 PH
4.5 m:
1000 PF
16V
22 m:
2.26
k:
4.99 k:
+
C
13
R
13
Q
4
Q
5
L
2
C
14
R
14
R
15
R
16
C
16
D
3B
V
DD
C
23
Si4470DY x 2
Si4850EY
10 PF
50V
2.8Arms
V
IN
10 m:
10 nF
100 pF
16.9 k:
100:
100 pF
100:
100 nF
BAS40-06
2.7 PH
4.5 m:
1000 PF
16V
22 m:
C
16
C
25
S
1
V
DD
SYNC
Vo = 1.8V, 20A
Q
6
Q
3
27 nF
C
10
1 PF
C
24
1 PF
Vin = 30V
r
10%
SGND
COMP1
ON/SS1
COMP2
V
DD
1
V
IN
VLIN5
SYNC
V
DD
2
UV_DELAY
ON/SS2
FB1
ILIM1
RSNS1
KS1
CBOOT1
HDRV1
SW1
LDRV1
PGND
ILIM2
RSNS2
KS2
SW2
HDRV2
CBOOT2
LDRV2
FB2
LM5642, LM5642X
SNVS219K –JUNE 2003–REVISED APRIL 2013 www.ti.com
Figure 4. Typical Single Channel Application Circuit
8 Submit Documentation Feedback Copyright © 2003–2013, Texas Instruments Incorporated
Product Folder Links: LM5642 LM5642X