TOP242 datasheet(40/48 Pages) POWERINT

部件名	TOP242

功能描述	Family Extended Power, Design Flexible,Integrated Off-line Switcher

PDF	48 Pages

Scroll/Zoom	100%

制造商	POWERINT [Power Integrations, Inc.]

网页	http://www.powerint.com

标志

40 / 48 page

TOP242-249

7/01

August 8, 2000

Figure 51. CONTROL Pin I-V Characteristic.

Figure 50. Duty Cycle Measurement.

Figure 52. Drain Current Operating Envelope.

Figure 53. TOPSwitch-GX General Test Circuit.

PI-2631-033001

5-50 V

40 V

0-15 V

0.1

µF

470

Ω

5 W

Y or R Package (X and L Pin)

P or G Package (M Pin)

470

Ω

0-100 k

Ω

0-60 k

Ω

0-60 k

Ω

0-100 k

Ω

NOTES: 1. This test circuit is not applicable for current limit or output characteristic measurements.

2. For P and G packages, short all SOURCE pins together.

CONTROL

TOPSwitch-GX

PI-2039-033001

DRAIN

VOLTAGE

0 V

90%

10%

90%

D =

0.8

1.3

1.2

1.1

0.9

0.8

1.0

Time (

µs)

0.7

0.6

0.5

0.4

0.3

0.2

0.1

ILIMIT(MAX) @ 25 °C

ILIMIT(MIN) @ 25 °C

IINIT(MIN) @ 85 VAC

IINIT(MIN) @ 265 VAC

tLEB (Blanking Time)

120

100

CONTROL Pin Voltage (V)

Slope

Dynamic

Impedance

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