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| 型号： | TOP249FN-TL |
| 厂商： | POWER INTEGRATIONS INC |
| 元件分类： | 稳压器 |
| 英文描述： | 8.64 A SWITCHING REGULATOR, 140 kHz SWITCHING FREQ-MAX, PZIP6 |
| 封装： | LEAD FREE, PLASTIC, TO-262, 7/6 PIN |
| 文件页数： | 1/52页 |
| 文件大小： | 2175K |
| 代理商： | TOP249FN-TL |
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Figure 1. Typical Flyback Application.
TOP242-250
TOPSwitch-GX
Family
Extended Power, Design Flexible,
EcoSmart
, Integrated Off-line Switcher
April 2005
Product Highlights
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
MAX)
reduction rejects line ripple and limits DC
MAX at high line
Frequency jittering reduces EMI and EMI ltering costs
Regulates to zero load without dummy loading
132 kHz frequency reduces transformer/power supply size
Half frequency option inY/R/F packages for video applications
Hysteretic thermal shutdown for automatic fault recovery
Large thermal hysteresis prevents PC board overheating
EcoSmart –
Energy Efcient
Extremely low consumption in remote off mode
(80 mW at 110 VAC, 160 mW at 230 VAC)
Frequency lowered with load for high standby efciency
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
reducesystemcostandimprovedesignexibility,performance
and energy efciency.
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,132kHzswitchingfrequency(automaticallyreduced
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 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 Adapter
1
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
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
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 KeyApplications
for detailed conditions. 3. For lead-free package options, see Part
Ordering Information. 4. 230 VAC or 100/115 VAC with doubler.
相关PDF资料 |
PDF描述 |
|---|---|
| TOP246F-TL | 4.32 A SWITCHING REGULATOR, 140 kHz SWITCHING FREQ-MAX, PZIP6 |
| TOP248F-TL | 7.2 A SWITCHING REGULATOR, 140 kHz SWITCHING FREQ-MAX, PZIP6 |
| TOP243G-TL | 1.44 A SWITCHING REGULATOR, 140 kHz SWITCHING FREQ-MAX, PDSO7 |
| TOP248FN-TL | 7.2 A SWITCHING REGULATOR, 140 kHz SWITCHING FREQ-MAX, PZIP6 |
| TOP250F-TL | 10.08 A SWITCHING REGULATOR, 140 kHz SWITCHING FREQ-MAX, PZIP6 |
相关代理商/技术参数 |
参数描述 |
|---|---|
| TOP249F-TL | 制造商:POWERINT 制造商全称:Power Integrations, Inc. 功能描述:TOPSwitch-GX Family Extended Power, Design Flexible, EcoSmart, Integrated Off-line Switcher |
| TOP249G- | 制造商:POWERINT 制造商全称:Power Integrations, Inc. 功能描述:TOPSwitch-GX Family Extended Power, Design Flexible, EcoSmart, Integrated Off-line Switcher |
| TOP249GN- | 制造商:POWERINT 制造商全称:Power Integrations, Inc. 功能描述:TOPSwitch-GX Family Extended Power, Design Flexible, EcoSmart, Integrated Off-line Switcher |
| TOP249GN-TL | 制造商:POWERINT 制造商全称:Power Integrations, Inc. 功能描述:TOPSwitch-GX Family Extended Power, Design Flexible, EcoSmart, Integrated Off-line Switcher |
| TOP249G-TL | 制造商:POWERINT 制造商全称:Power Integrations, Inc. 功能描述:TOPSwitch-GX Family Extended Power, Design Flexible, EcoSmart, Integrated Off-line Switcher |
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