Datasheet > TOP245Y/F

TOP245Y/F

更新时间： 2024-09-20 23:37:03

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其他 - ETC		/
页数	文件大小	规格书
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描述
Up to 290 W Extended power. design flexible.

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TOP245Y/F 数据手册

TOP242-250

TOPSwitch-GX Family

Extended Power, Design Flexible,

EcoSmart, IntegratedOff-line Switcher

Product Highlights

Lower System Cost, High Design Flexibility

OUT

• Extended power range for higher power applications

• No heatsink required up to 30 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

CONTROL

TOPSwitch-GX

PI-2632-060200

• Line feed forward with maximum duty cycle (DC_MAX

reduction rejects line ripple and limits DC_MAXat high line

• Frequency jittering reduces EMI and EMI filtering costs

• Regulates to zero load without dummy loading

)

Figure 1. Typical Flyback Application.

OUTPUT POWER TABLE

• 132 kHz frequency reduces transformer/power supply size

230 VAC ±15%⁴

85-265 VAC

• HalffrequencyoptioninY/R/Fpackagesforvideoapplications

• Hysteretic thermal shutdown for automatic fault recovery

• Large thermal hysteresis prevents PC board overheating

PRODUCT³

Open

Adapter¹

Frame²

TOP242 P or G

TOP242 R

TOP242 Y or F

9 W

21 W

10 W

15 W

22 W

6.5 W

11 W

7 W

10 W

14 W

EcoSmart - Energy Efficient

• Extremely low consumption in remote off mode

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

• Frequency lowered with load for high standby efficiency

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

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

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.

TOP245 P

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 R

TOP246 Y or F

40 W

60 W

64 W

125 W

26 W

40 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

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

TOPSwitch standard DRAIN, SOURCE and CONTROLterminals

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

forward/DC_MAXreduction), accurate externally set current limit,

remote ON/OFF, synchronization to an external lower frequency,

and frequency selection (132 kHz/66 kHz).

TOP248 R

TOP248 Y or F

43 W

75 W

30 W

70 W

48 W

155 W

105 W 205 W

44 W 79 W

120 W 250 W

45 W 82 W

135 W 290 W

TOP249 R

TOP249 Y or F

31 W

80 W

53 W

180 W

TOP250 R

TOP250 Y or F

32 W

90 W

55 W

210 W

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 temperature and absolute tolerance, to simplify design and

optimize system cost.

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. See Part Ordering

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

September 2003

12 3 4 5 6 7...52

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与TOP245Y/F相关器件

型号	品牌	获取价格	描述	数据表
TOP245YN	POWERINT	获取价格	TOPSwitch-GX Family Extended Power, Design Flexible, EcoSmart, Integrated Off-line Switche
TOP245YN-	POWERINT	获取价格	TOPSwitch-GX Family Extended Power, Design Flexible, EcoSmart, Integrated Off-line Switche
TOP245YN-TL	POWERINT	获取价格	TOPSwitch-GX Family Extended Power, Design Flexible, EcoSmart, Integrated Off-line Switche
TOP245Y-TL	POWERINT	获取价格	TOPSwitch-GX Family Extended Power, Design Flexible, EcoSmart, Integrated Off-line Switche
TOP246	POWERINT	获取价格	Extended Power, Design Flexible EcoSmart, Integrated Off-line Switcher
TOP246F	POWERINT	获取价格	TOPSwitch -GX Family Extended Power, Design Flexible, EcoSmart, Integrated Off-line Switch
TOP246F-	POWERINT	获取价格	TOPSwitch-GX Family Extended Power, Design Flexible, EcoSmart, Integrated Off-line Switche
TOP246FN	POWERINT	获取价格	IC OFFLINE SWIT UVLO HV TO262
TOP246FN-	POWERINT	获取价格	TOPSwitch-GX Family Extended Power, Design Flexible, EcoSmart, Integrated Off-line Switche
TOP246FN-TL	POWERINT	获取价格	TOPSwitch-GX Family Extended Power, Design Flexible, EcoSmart, Integrated Off-line Switche

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