TOP250G-TL datasheet(38/52 Pages) POWERINT

Part #	TOP250G-TL

Description	TOPSwitch-GX Family Extended Power, Design Flexible, EcoSmart, Integrated Off-line Switcher

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Manufacturer	POWERINT [Power Integrations, Inc.]

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TOP242-250

M

12/04

38

NOTES:

A. For speciﬁcations with negative values, a negative temperature coefﬁcient corresponds to an increase in

magnitude with increasing temperature, and a positive temperature coefﬁcient corresponds to a decrease in

magnitude with increasing temperature.

B. Guaranteed by characterization. Not tested in production.

C. For externally adjusted current limit values, please refer to Figures 54b, 55b and 56b (Current Limit vs. External

Current Limit Resistance) in the Typical Performance Characteristics section. The tolerance speciﬁed is only valid

at full current limit.

D. Breakdown voltage may be checked against minimum BV

DSS speciﬁcation by ramping the DRAIN pin voltage up

to but not exceeding minimum BV

DSS.

E. It is possible to start up and operate

TOPSwitch-GX at DRAIN voltages well below 36 V. However, the CONTROL

pin charging current is reduced, which affects start-up time, auto-restart frequency, and auto-restart duty cycle.

Refer to Figure 68, the characteristic graph on CONTROL pin charge current (I

C) vs. DRAIN voltage for low

voltage operation characteristics.

Parameter

Symbol

Conditions

SOURCE = 0 V; T

J = -40 to 125 °C

See Figure 53

(Unless Otherwise Speciﬁed)

Min

Typ

Max

Units

OUTPUT (cont.)

Rise Time

t

R

Measured in a Typical Flyback

Converter Application

100

ns

Fall Time

t

F

50

ns

SUPPLY VOLTAGE CHARACTERISTICS

DRAIN Supply

Voltage

See Note E

36

V

Shunt Regulator

Voltage

V

C(SHUNT)

I

C = 4 mA

5.60

5.85

6.10

V

Shunt Regulator

Temperature Drift

±50

ppm/°C

Control Supply/

Discharge Current

I

CD1

Output MOSFET

Enabled

V

X, VL, VM = 0 V

TOP242-245

1.0

1.6

2.5

mA

TOP246-249

1.2

2.2

3.2

TOP250

1.3

2.4

3.65

I

CD2

Output MOSFET

Disabled

V

X, VL, VM = 0 V

0.3

0.6

1.3

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