PART LIST

Ω

Ω

Ω

Ω

Ω

Ω

Ω

µF 63V EYF (ROE)

µF 50V

µF Film

µF 40V EKR (ROE)

µF Film

D1 = SB 560 (OR EQUIVALENT)

L1 = 150

µH

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.

Note:

In the Test

and Application Circuit for L4972D are not

mounted C2, C14 and R8.

Table B

SUGGESTED BOOSTRAP CAPACITORS

Operatin g F requency

Boo strap Cap.c10

f = 20KHz

≥680nF

f = 50KHz

≥470nF

f = 100KHz

≥330nF

f = 200KHz

≥220nF

f = 500KHz

≥100nF

Figure 6a : Component Layout of fig.5 (1 : 1 scale). Evaluation Board Available (only for DIP version)

Table A

12V

15V

18V

24V

4.7k

Ω

4.7k

Ω

4.7k

Ω

4.7k

Ω

6.2kW

9.1k

Ω

12

Ω

18

Ω

L4972A-L4972AD

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