TOP245G datasheet(1/54 Pages) POWERINT

Teilenummer	TOP245G

Bauteilbeschribung	Extended Power, Design Flexible, EcoSmart, Integrated Off-Line Switcher

PDF	54 Pages

Scroll/Zoom	100%

Hersteller	POWERINT [Power Integrations, Inc.]

Direct Link	http://www.powerint.com

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Figure 1. Typical Flyback Application.

Product Highlights

Lower System Cost, High Design Flexibility

• Extended power range for higher power applications

• No heat sink required up to 34 W using P/G packages

• 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 undervoltage (UV) detection: no turn off glitches

• Line overvoltage (OV) shutdown extends line surge limit

• Line feed-forward with maximum duty cycle (DC

MAX)

reduction rejects line ripple and limits DC

MAX at high line

• 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

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

• 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

MAX reduction), accurate externally set

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

MAX, hysteretic thermal shutdown, and larger

creepage packages. In addition, all critical parameters (i.e.

current limit, frequency, PWM gain) have tighter tempera-

ture and absolute tolerances to simplify design and

optimize system cost.

PI-2632-060200

AC

IN

DC

OUT

D

S

C

TOPSwitch-GX

CONTROL

L

F

X

+

OUTPUT POWER TABLE

PRODUCT3

230 VAC ±15%4

85-265 VAC

Adapter1

Open

Frame2

Adapter1

Open

Frame2

TOP242 P or G

TOP242 R

TOP242 Y or F

9 W

15 W

10 W

15 W

22 W

6.5 W

11 W

7 W

10 W

14 W

TOP243 P or G

TOP243 R

TOP243 Y or F

13 W

29 W

20 W

25 W

45 W

9 W

17 W

15 W

23 W

30 W

TOP244 P or G

TOP244 R

TOP244 Y or F

16 W

34 W

30 W

28 W

50 W

65 W

11 W

20 W

28 W

45 W

TOP245 P or G

TOP245 R

TOP245 Y or F

19 W

37 W

40 W

30 W

57 W

85 W

13 W

23 W

26 W

22 W

33 W

60 W

TOP246 P or G

TOP246 R

TOP246 Y or F

21 W

40 W

60 W

34 W

64 W

125 W

15 W

26 W

40 W

26 W

38 W

90 W

TOP247 R

TOP247 Y or F

42 W

85 W

70 W

165 W

28 W

55 W

43 W

125 W

TOP248 R

TOP248 Y or F

43 W

105 W

75 W

205 W

30 W

70 W

48 W

155 W

TOP249 R

TOP249 Y or F

44 W

120 W

79 W

250 W

31 W

80 W

53 W

180 W

TOP250 R

TOP250 Y or F

45 W

135 W

82 W

290 W

32 W

90 W

55 W

210 W

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.

TOP242-250

TOPSwitch-GX Family

Extended Power, Design Flexible, EcoSmart,

Integrated Off-Line Switcher

www.power.com

October 2020

This product is not recommended for new designs.

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