TNY256 Ver la hoja de datos (PDF) - Power Integrations, Inc

Número de pieza

componentes Descripción

Fabricante

TNY256

Energy Efficient/ Low Power Off-line Switcher

Power Integrations, Inc 

TNY256

D EN/UV

S

S

S

S

S BP

2 MΩ

0.1 µF

470 Ω

5W

S2

470 Ω

S1

150 V

10 V

50 V

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

PI-2352-011899

Figure 14. TinySwitch General Test Circuit.

t2

t1

HV

90%

90%

DRAIN

VOLTAGE

0V

D = t1

t2

10%

Figure 15. TinySwitch Duty Cycle Measurement.

PI-2048-050798

DCMAX

(internal signal)

tP

EN/UV

VDRAIN

1

t=

P fOSC

tEN/UV

Figure 16. TinySwitch Output Enable Timing.

PI-2364-012699

12 B

8/99

1.3

tLEB (Blanking Time)

1.2

1.1

1.0

0.9

0.8

0.7

0.6

IINIT(MIN)

0.5

ILIMIT(MAX) @ 25 ˚C

0.4

ILIMIT(MIN) @ 25 ˚C

0.3

0.2

0.1

0

0 1 23 45 678

Time (µs)

Figure 17. Current Limit Envelope.

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