TOP242-250 POWERINT [Power Integrations, Inc.], TOP242-250 Datasheet

TOP242-250

Manufacturer Part Number

TOP242-250

Description

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

Manufacturer

POWERINT [Power Integrations, Inc.]

Datasheet

1.TOP242-250.pdf (52 pages)

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TOPSwitch-GX Family

Extended Power, Design Flexible,

EcoSmart, Integrated Off-line Switcher

Lower System Cost, High Design Flexibility

• Extended power range for higher power applications

• No heatsink required up to 34 W using P package

• Features eliminate or reduce cost of external components

• Fully integrated soft-start for minimum stress/overshoot

• Externally programmable accurate current limit

• Wider duty cycle for more power, smaller input capacitor

• Separate line sense and current limit pins on Y/R/F packages

• Line under-voltage (UV) detection: no turn off glitches

• Line overvoltage (OV) shutdown extends line surge limit

• Line feed-forward with maximum duty cycle (DC

• Frequency jittering reduces EMI and EMI ﬁltering costs

• Regulates to zero load without dummy loading

• 132 kHz frequency reduces transformer/power supply size

• Half frequency option in Y/R/F packages for video applications

• Hysteretic thermal shutdown for automatic fault recovery

• Large thermal hysteresis prevents PC board overheating

EcoSmart - Energy Efﬁcient

• Extremely low consumption in remote off mode

• Frequency lowered with load for high standby efﬁciency

• Allows shutdown/wake-up via LAN/input port

Description

TOPSwitch-GX uses the same proven topology as TOPSwitch,

cost effectively integrating the high voltage power MOSFET,

PWM control, fault protection and other control circuitry onto

a single CMOS chip. Many new functions are integrated to

reduce system cost and improve design ﬂexibility, performance

and energy efﬁciency.

Depending on package type, either 1 or 3 additional pins over

the TOPSwitch standard DRAIN, SOURCE and CONTROL

terminals allow the following functions: line sensing (OV/UV,

line feed-forward/DC

current limit, remote ON/OFF, synchronization to an external

lower frequency, and frequency selection (132 kHz/66 kHz).

All package types provide the following transparent features:

Soft-start, 132 kHz switching frequency (automatically reduced

at light load), frequency jittering for lower EMI, wider DC

hysteretic thermal shutdown, and larger creepage packages. In

addition, all critical parameters (i.e. current limit, frequency,

PWM gain) have tighter temperature and absolute tolerances

to simplify design and optimize system cost.

reduction rejects line ripple and limits DC

(80 mW at 110 VAC, 160 mW at 230 VAC)

Product Highlights

MAX

reduction), accurate externally set

MAX

at high line

MAX

)

MAX

Figure 1. Typical Flyback Application.

Table 1. Notes: 1. Typical continuous power in a non-ventilated enclosed

adapter measured at 50 °C ambient. 2. Maximum practical continuous

power in an open frame design at 50 °C ambient. See Key Applications

for detailed conditions. 3. For lead-free package options, see Part

Ordering Information. 4. 230 VAC or 100/115 VAC with doubler.

TOP242 P or G

TOP244 P or G

TOP242 Y or F

TOP243 Y or F

TOP244 Y or F

TOP245 Y or F

TOP246 Y or F

TOP247 Y or F

TOP248 Y or F

TOP249 Y or F

TOP250 Y or F

PRODUCT

TOP242 R

TOP243 R

TOP244 R

TOP245 R

TOP246 R

TOP247 R

TOP248 R

TOP249 R

TOP250 R

TOP245 P

TOP246 P

TOPSwitch-GX

OUTPUT POWER TABLE

Adapter

105 W

120 W

135 W

230 VAC ±15%

15 W

10 W

13 W

29 W

20 W

16 W

34 W

30 W

19 W

37 W

40 W

21 W

40 W

60 W

42 W

85 W

43 W

44 W

45 W

9 W

CONTROL

Frame

125 W

165 W

205 W

250 W

290 W

Open

15 W

22 W

25 W

45 W

28 W

50 W

65 W

30 W

57 W

85 W

34 W

64 W

70 W

75 W

79 W

82 W

Adapter

6.5 W

11 W

17 W

15 W

11 W

20 W

13 W

23 W

26 W

15 W

26 W

40 W

28 W

55 W

30 W

70 W

31 W

80 W

32 W

90 W

7 W

9 W

85-265 VAC

December 2004

PI-2632-060200

Frame

125 W

155 W

180 W

210 W

Open

10 W

14 W

15 W

23 W

30 W

20 W

28 W

45 W

22 W

33 W

60 W

26 W

38 W

90 W

43 W

48 W

53 W

55 W

OUT

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