- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄383077 > ICE2A0165 (INFINEON TECHNOLOGIES AG) Off-Line SMPS Current Mode Controller with integrated 650V/ 800V CoolMOS PDF資料下載
參數(shù)資料
| 型號： | ICE2A0165 |
| 廠商： | INFINEON TECHNOLOGIES AG |
| 英文描述： | Off-Line SMPS Current Mode Controller with integrated 650V/ 800V CoolMOS |
| 中文描述： | 離線式開關(guān)電源電流模式控制器，集成了?650V / 800V的的CoolMOS |
| 文件頁數(shù)： | 11/35頁 |
| 文件大?。?/td> | 1716K |
| 代理商： | ICE2A0165 |
第1頁第2頁第3頁第4頁第5頁第6頁第7頁第8頁第9頁第10頁當(dāng)前第11頁第12頁第13頁第14頁第15頁第16頁第17頁第18頁第19頁第20頁第21頁第22頁第23頁第24頁第25頁第26頁第27頁第28頁第29頁第30頁第31頁第32頁第33頁第34頁第35頁
Version 2.0
11
11 Jun 2004
CoolSET-F2
Functional Description
secondary output voltage is insensitive on line
variations. Line variation changes the current
waveform slope which controls the duty cycle.
The external R
Sense
allows an individual adjustment of
the maximum source current of the integrated
CoolMOS.
Figure 9
Improved Current Mode
To improve the Current Mode during light load
conditions the amplified current ramp of the PWM-OP
is superimposed on a voltage ramp, which is built by
the switch T
2
, the voltage source V
1
and the 1st order
low pass filter composed of R
1
and C
1
(see Figure 9,
Figure 10). Every time the oscillator shuts down for
max. duty cycle limitation the switch T2 is closed by
V
OSC
. When the oscillator triggers the Gate Driver T2 is
opened so that the voltage ramp can start.
In case of light load the amplified current ramp is to
small to ensure a stable regulation. In that case the
Voltage Ramp is a well defined signal for the
comparison with the FB-signal. The duty cycle is then
controlled by the slope of the Voltage Ramp.
By means of the Comparator C5, the Gate Driver is
switched-off until the voltage ramp exceeds 0.3V. It
allows the duty cycle to be reduced continuously till 0%
by decreasing V
FB
below that threshold.
Figure 10
Light Load Conditions
3.2.1
PWM-OP
The input of the PWM-OP is applied over the internal
leading edge blanking to the external sense resistor
R
Sense
connected to pin Isense. R
Sense
converts the
source current into a sense voltage. The sense voltage
is amplified with a gain of 3.65 by PWM OP. The output
of the PWM-OP is connected to the voltage source V1.
The voltage ramp with the superimposed amplified
current signal is fed into the positive inputs of the PWM-
Comparator, C5 and the Soft-Start-Comparator.
3.2.2
PWM-Comparator
The PWM-Comparator compares the sensed current
signal of the integrated CoolMOS
TM
with the feedback
signal V
FB
(see Figure 11). V
FB
is created by an
external
optocoupler
or
combination with the internal pull-up resistor R
FB
and
provides the load information of the feedback circuitry.
When the amplified current signal of the integrated
CoolMOS exceeds the signal V
FB
the PWM-
Comparator switches off the Gate Driver.
external
transistor
in
x3.65
PWM OP
0.8V
10k
Oscillator
PWM Comparator
20pF
T
2
R
1
C
1
FB
PWM-Latch
V
1
C5
0.3V
Gate Driver
Voltage Ramp
V
OSC
Soft-Start Comparator
t
t
V
OSC
0.8V
FB
t
max.
Duty Cycle
0.3V
Gate Driver
Voltage Ramp
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| ICE2A0265 | Off-Line SMPS Current Mode Controller with integrated 650V/ 800V CoolMOS |
| ICE2A0365 | Off-Line SMPS Current Mode Controller with integrated 650V/ 800V CoolMOS |
| ICE2A0565 | Off-Line SMPS Current Mode Controller with integrated 650V/ 800V CoolMOS |
| ICE2A0565G | Off-Line SMPS Current Mode Controller with integrated 650V/ 800V CoolMOS |
| ICE2A0565Z | Off-Line SMPS Current Mode Controller with integrated 650V/ 800V CoolMOS |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| ICE2A0265 | 制造商:INFINEON 制造商全稱:Infineon Technologies AG 功能描述:Off-Line SMPS Current Mode Controller with integrated 650V/ 800V CoolMOS |
| ICE2A0365 | 制造商:INFINEON 制造商全稱:Infineon Technologies AG 功能描述:Off-Line SMPS Current Mode Controller with integrated 650V/ 800V CoolMOS |
| ICE2A0565 | 功能描述:初級與次級側(cè) PWM 控制器 COOLSET IC CUR-MODE PWM CTRLR 650V RoHS:否 制造商:ON Semiconductor 輸出端數(shù)量:1 開關(guān)頻率:250 KHz 工作電源電壓:- 0.3 V to + 28 V 最大工作溫度:+ 85 C 最小工作溫度:- 5 C 封裝 / 箱體:SOIC-8 Narrow 封裝:Reel |
| ICE2A0565_11 | 制造商:INFINEON 制造商全稱:Infineon Technologies AG 功能描述:Off-Line SMPS Current Mode Controller with integrated 650V/800V CoolMOS? |
| ICE2A0565FKLA1 | 制造商:Infineon Technologies AG 功能描述:Current Mode PWM Controller 650V 500mA 8-Pin PDIP 制造商:Infineon Technologies AG 功能描述:IC OFFLINE CTRLR SMPS CM 8DIP |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。