Datasheet

PART LIST
R
1
= 30KΩ
R
2
= 10KΩ
R
3
= 15KΩ
R
4
= 30KΩ
R
5
=22Ω
R
6
= 4.7KΩ
R
7
= see table A
R
8
= OPTION
R
9
= 4.7KΩ
*C
1
=C
2
= 1000µF 63V EYF (ROE)
C
3
=C
4
=C
5
=C
6
= 2,2µF 50V
C
7
= 390pF Film
C
8
= 22nF MKT 1837 (ERO)
C
9
= 2.7nF KP 1830 (ERO)
C
10
= 0.33µF Film
C
11
=1nF
** C
12
=C
13
=C
14
=100µF 40V EKR (ROE)
C
15
=1µF Film
D1 = SB 560 (OR EQUIVALENT)
L1 = 150µH
core 58310 MAGNETICS
45 TURNS 0.91mm (AWG 19)
COGEMA 949181
* 2 capacitors in parallel to increase input RMS current capability.
* * 3 capacitors in parallel to reduce total output ESR.
Table A
V
0
R
9
R
7
12V
15V
18V
24V
4.7kΩ
4.7kΩ
4.7kΩ
4.7kΩ
6.2kW
9.1kΩ
12Ω
18Ω
Table B
SUGGESTED BOOSTRAP CAPACITORS
Operating Frequency Boostrap Cap.c10
f = 20KHz ≥680nF
f = 50KHz ≥470nF
f = 100KHz ≥330nF
f = 200KHz ≥220nF
f = 500KHz ≥100nF
Figure 6a : ComponentLayout of fig.5 (1 : 1 scale). Evaluation Board Available
L4974A
10/22