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參數(shù)資料
| 型號： | ICE2A765P |
| 英文描述： | ?max. Pout=130W. fop=100kHz. Vbreak=650V. TO220? |
| 中文描述： | ？最大。噘\u003d 130瓦。紈褲子弟\u003d 100kHz的。 Vbreak \u003d?650V。的TO220？ |
| 文件頁數(shù)： | 9/25頁 |
| 文件大?。?/td> | 642K |
| 代理商： | ICE2A765P |
Datasheet
Preliminary Data
9
August 2001
Preliminary Specification
CoolSET
-F2
ICE2A765P
ICE2B765P
Functional Description
Figure 8
PWM Controlling
3.3
Soft-Start
Figure 9
Soft-Start Phase
The Soft-Start is realized by the internal pullup resistor
R
and the external Capacitor C
(see
Figure 2). The Soft-Start voltage V
SoftS
is generated by
charging the external capacitor C
Soft-Start
by the internal
pullup resistor R
Soft-Start
. The Soft-Start-Comparator
compares the voltage at pin SoftS at the negative input
with the ramp signal of the PWM-OP at the positive
input. When Soft-Start voltage V
is less than
Feedback voltage V
the Soft-Start-Comparator limits
the pulse width by reseting the PWM-Latch (see Figure
9). In addition to Start-Up, Soft-Start is also activated at
each restart attempt during Auto Restart. By means of
the above mentioned C
Soft-Start
the Soft-Start can be
defined by the user. The Soft-Start is finished when
V
exceeds 5.3V. At that time the Protection Unit is
activated by Comparator C4 and senses the FB by
Comparator C3 wether the voltage is below 4.8V which
means that the voltage on the secondary side of the
SMPS is settled. The internal Zener Diode at SoftS with
breaktrough voltage of 5.6V is to prevent the internal
circuit from saturation (see Figure 10).
Figure 10
Activation of Protection Unit
The Start-Up time T
within the converter output
voltage V
is settled must be shorter than the Soft-
Start Phase T
Soft-Start
(see Figure 11).
By means of Soft-Start there is an effective
minimization of current and voltage stresses on the
integrated CoolMOS
, the clamp circuit and the output
overshoot and prevents saturation of the transformer
during Start-Up.
x3.65
PWM OP
Improved
Current Mode
PWM Comparator
Isense
Soft-Start Comparator
6.5V
PWM-Latch
0.8V
FB
Optocoupler
R
FB
t
5.3V
V
SoftS
Gate Driver
t
T
Soft-Start
5.6V
6.5V
R
FB
6.5V
Power-Up Reset
C4
5.3V
C3
4.8V
R
Soft-Start
FB
R
S
Q
Q
Error-Latch
R
S
Q
Q
PWM-Latch
G2
Clock
Gate
Driver
5.6V
SoftS
69
,
×
=
Start
Soft
Start
Soft
Start
Soft
R
T
C
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相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| ICE2A765P2 | 功能描述:初級與次級側(cè) PWM 控制器 Off-Line SMPS Currnt Mode CTRLR 650V RoHS:否 制造商:ON Semiconductor 輸出端數(shù)量:1 開關頻率: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 |
| ICE2A765P2BKSA1 | 制造商:Infineon Technologies AG 功能描述:Current Mode PWM Controller 800V 1A 6-Pin(6+Tab) TO-220 制造商:Infineon Technologies AG 功能描述:IC OFFLINE CTRLR SMPS CM TO220 |
| ICE2A765PBKSA1 | 制造商:Infineon Technologies AG 功能描述:Current Mode PWM Controller 800V 2A 6-Pin(6+Tab) TO-220 制造商:Infineon Technologies AG 功能描述:IC OFFLINE CTRLR SMPS CM TO220 |
| ICE2AS01 | 功能描述:初級與次級側(cè) PWM 控制器 OFF-LINE SMPS CRRNT MODE CONTROLLER RoHS:否 制造商:ON Semiconductor 輸出端數(shù)量:1 開關頻率: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 |
| ICE2AS01_06 | 制造商:INFINEON 制造商全稱:Infineon Technologies AG 功能描述:Off-Line SMPS Current Mode Controller |
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