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TOP243R PDF даташит

Спецификация TOP243R изготовлена ​​​​«Power Integrations» и имеет функцию, называемую «(TOP242 - TOP250) Family Extended Power/ Design Flexible/Integrated Off-line Switcher».

Детали детали

Номер произв TOP243R
Описание (TOP242 - TOP250) Family Extended Power/ Design Flexible/Integrated Off-line Switcher
Производители Power Integrations
логотип Power Integrations логотип 

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TOP243R Даташит, Описание, Даташиты
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TOP242-250
TOPSwitch®-GX Family
Extended Power, Design Flexible,
EcoSmart,® Integrated Off-line Switcher
Product Highlights
Lower System Cost, High Design Flexibility
• 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
• Line feed forward with maximum duty cycle (DCMAX)
reduction rejects line ripple and limits DCMAX 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 @ 110 VAC, 160 mW @ 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/DCMAX 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 DCMAX, 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.
+
AC DC
IN OUT
-
DL
TOPSwitch-GX
CONTROL
C
S XF
Figure 1. Typical Flyback Application.
PI-2632-060200
OUTPUT POWER TABLE
PRODUCT3
230 VAC ±15%4
85-265 VAC
Adapter1
Open
Frame2
Adapter1
Open
Frame2
TOP242 P or G 9 W
TOP242 R 21 W
TOP242 Y or F 10 W
15 W
22 W
22 W
6.5 W
11 W
7W
10 W
14 W
14 W
TOP243 P or G 13 W
TOP243 R 29 W
TOP243 Y or F 20 W
25 W
45 W
45 W
9W
17 W
15 W
15 W
23 W
30 W
TOP244 P or G 16 W
TOP244 R 34 W
TOP244 Y or F 30 W
28 W
50 W
65 W
11 W
20 W
20 W
20 W
28 W
45 W
TOP245 P 19 W
TOP245 R 37 W
TOP245 Y or F 40 W
30 W
57 W
85 W
13 W
23 W
26 W
22 W
33 W
60 W
TOP246 R 40 W 64 W 26 W 38 W
TOP246 Y or F 60 W 125 W 40 W 90 W
TOP247 R 42 W 70 W 28 W 43 W
TOP247 Y or F 85 W 165 W 55 W 125 W
TOP248 R 43 W 75 W 30 W 48 W
TOP248 Y or F 105 W 205 W 70 W 155 W
TOP249 R 44 W 79 W 31 W 53 W
TOP249 Y or F 120 W 250 W 80 W 180 W
TOP250 R 45 W 82 W 32 W 55 W
TOP250 Y or F 135 W 290 W 90 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. See Part Ordering
Information. 4. 230 VAC or 100/115 VAC with doubler.
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September 2003
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TOP243R Даташит, Описание, Даташиты
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TOP242-250
Section List
Functional Block Diagram ......................................................................................................................................... 3
Pin Functional Description ........................................................................................................................................ 4
TOPSwitch-GX Family Functional Description ........................................................................................................ 5
CONTROL (C) Pin Operation ................................................................................................................................. 6
Oscillator and Switching Frequency ....................................................................................................................... 6
Pulse Width Modulator and Maximum Duty Cycle ................................................................................................. 7
Light Load Frequency Reduction ............................................................................................................................ 7
Error Amplifier ......................................................................................................................................................... 7
On-chip Current Limit with External Programmability ............................................................................................. 7
Line Under-Voltage Detection (UV) ........................................................................................................................ 8
Line Overvoltage Shutdown (OV) ........................................................................................................................... 8
Line Feed Forward with DC Reduction .............................................................................................................. 8
MAX
General Information & Table of ContentsRemote ON/OFF and Synchronization ................................................................................................................... 9
Soft-Start ................................................................................................................................................................ 9
Shutdown/Auto-Restart .......................................................................................................................................... 9
Product Selector Guide 1Hysteretic Over-Temperature Protection ................................................................................................................ 9
Bandgap Reference .............................................................................................................................................. 10
High-Voltage Bias Current Source ........................................................................................................................ 10
Data Sheets 2Using Feature Pins .................................................................................................................................................... 10
FREQUENCY (F) Pin Operation ........................................................................................................................... 10
LINE-SENSE (L) Pin Operation ............................................................................................................................ 10
Application Notes 3EXTERNAL CURRENT LIMIT (X) Pin Operation ................................................................................................. 11
MULTI-FUNCTION (M) Pin Operation .................................................................................................................. 11
Design Ideas 4Typical Uses of FREQUENCY (F) Pin ...................................................................................................................... 14
Typical Uses of LINE-SENSE (L) and EXTERNAL CURRENT LIMIT (X) Pins ....................................................... 15
Typical Uses of MULTI-FUNCTION (M) Pin ............................................................................................................. 17
Design ToolsApplication Examples ............................................................................................................................................... 20
A High Efficiency, 30 W, Universal Input Power Supply ........................................................................................ 20
A High Efficiency, Enclosed, 70 W, Universal Adapter Supply .............................................................................. 21
Quality and ReliabilityA High Efficiency, 250 W, 250-380 VDC Input Power Supply ............................................................................... 22
Multiple Output, 60 W, 185-265 VAC Input Power Supply .................................................................................... 23
Package InformationProcessor Controlled Supply Turn On/Off ............................................................................................................ 24
Key Application Considerations .............................................................................................................................. 26
TOPSwitch-II vs. TOPSwitch-GX .......................................................................................................................... 26
DPA-Switch DC-DC SeminarTOPSwitch-FX vs. TOPSwitch-GX ....................................................................................................................... 27
TOPSwitch-GX Design Considerations ................................................................................................................ 28
TOPSwitch-GX Layout Considerations ................................................................................................................. 30
LinkSwitch & TinySwitch-II AC-DC SeminarQuick Design Checklist ......................................................................................................................................... 30
Design Tools ......................................................................................................................................................... 32
5
6
7
8
9
Product Specifications and Test Conditions .......................................................................................................... 33
TOPSwitch-GX AC-DC Seminar 10Typical Performance Characteristics ...................................................................................................................... 40
Part Ordering Information ........................................................................................................................................ 45
Sales Representatives and Distributors 11Package Outlines ...................................................................................................................................................... 45
2K
9/03
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TOP243R Даташит, Описание, Даташиты
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CONTROL (C)
EXTERNAL
CURRENT LIMIT (X)
LINE-SENSE (L)
FREQUENCY (F)
VC
ZC
SHUNT REGULATOR/
ERROR AMPLIFIER
-
+ 5.8 V
IFB
VI (LIMIT)
CURRENT
LIMIT
SOFT
ADJUST START
ON/OFF
VBG + VT
5.8 V
4.8 V
+
-
INTERNAL UV
COMPARATOR
SOFT START
0
INTERNAL
1 SUPPLY
÷8
SHUTDOWN/
AUTO-RESTART
1V
VBG
OV/UV
LINE
SENSE DCMAX
STOP LOGIC
STOP SOFT-
START
DCMAX
DMAX
CLOCK
HYSTERETIC
THERMAL
SHUTDOWN
HALF
FREQ.
SAW
OSCILLATOR WITH JITTER
-
+
PWM
COMPARATOR
LIGHT LOAD
RE
FREQUENCY
REDUCTION
SQ
R
Figure 2a. Functional Block Diagram (Y, R or F Package).
CONTROL (C)
MULTI-
FUNCTION (M)
VC
ZC
SHUNT REGULATOR/
ERROR AMPLIFIER
-
+ 5.8 V
IFB
VI (LIMIT)
CURRENT
LIMIT
ADJUST
SOFT
START
ON/OFF
5.8 V
4.8 V
+
-
INTERNAL UV
COMPARATOR
VBG + VT
STOP LOGIC
VBG
OV/UV
LINE
SENSE DCMAX
STOP SOFT-
START
DCMAX
DMAX
CLOCK
SOFT START
0
1
÷8
SHUTDOWN/
AUTO-RESTART
HYSTERETIC
THERMAL
SHUTDOWN
SAW
-
OSCILLATOR WITH JITTER
+
PWM
COMPARATOR
LIGHT LOAD
RE
FREQUENCY
REDUCTION
INTERNAL
SUPPLY
S
R
Q
Figure 2b. Functional Block Diagram (P or G Package).
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TOP242-250
DRAIN (D)
-
+
CURRENT LIMIT
COMPARATOR
CONTROLLED
TURN-ON
GATE DRIVER
LEADING
EDGE
BLANKING
SOURCE (S)
PI-2639-060600
DRAIN (D)
-
+
CURRENT LIMIT
COMPARATOR
CONTROLLED
TURN-ON
GATE DRIVER
LEADING
EDGE
BLANKING
SOURCE (S)
PI-2641-061200
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