TNY274-280

Figure 17. Duty Cycle Measurement.

Figure 18. Output Enable Timing.

Figure 16. General Test Circuit.

PI-4079-080905

0.1

µF

10 V

50 V

470

Ω

5 W

S2

470

Ω

NOTE: This test circuit is not applicable for current limit or output characteristic measurements.

S

D

EN/UV

S

S

BP/M

S

150 V

S1

2 M

Ω

PI-2364-012699

EN/UV

tP

tEN/UV

t

P

=

1

f

OSC

(internal signal)

0.8

Figure 19. Current Limit Envelope.