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參數(shù)資料
| 型號： | ICE3A2065Z |
| 廠商： | INFINEON TECHNOLOGIES AG |
| 英文描述： | Off-Line SMPS Current Mode Controller with integrated 650V Startup Cell/CoolMOS |
| 中文描述： | 離線式開關(guān)電源電流模式控制器，集成了?650V啟動單元/的CoolMOS |
| 文件頁數(shù)： | 11/30頁 |
| 文件大小： | 1223K |
| 代理商： | ICE3A2065Z |
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CoolSET-F3
Functional Description
Version 1.3
11
15 Sep 2004
3
Functional Description
All values which are used in the functional description
are typical values. For calculating the worst cases the
min/max values which can be found in section 4
Electrical Characteristics have to be considered.
3.1
Introduction
CoolSET-F3 is the further development of the
CoolSET-F2 to meet the requirements for the lowest
Standby Power at minimum load and no load
conditions. A new fully integrated Standby Power
concept is implemented into the IC in order to keep the
application design easy. Compared to CoolSET-F2
no further external parts are needed to achieve the
lowest Standby Power. An intelligent Active Burst
Mode is used for this Standby Mode. After entering this
mode there is still a full control of the power conversion
by the secondary side via the same optocoupler that is
used for the normal PWM control. The response on
load jumps is optimized. The voltage ripple on V
is
minimized. V
out
is further on well controlled in this
mode.
The usually external connected RC-filter in the
feedback line after the optocoupler is integrated in the
IC to reduce the external part count.
Furthermore a high voltage Startup Cell is integrated
into the IC which is switched off once the Undervoltage
Lockout on-threshold of 15V is exceeded. This Startup
Cell is part of the integrated Depl-CoolMOS. The
external startup resistor is no longer necessary as this
Startup Cell is connected to the Drain. Power losses
are therefore reduced. This increases the efficiency
under light load conditions drastically.
The Soft-Start capacitor is also used for providing an
adjustable blanking window for high load jumps. During
this time window the overload detection is disabled.
With this concept no further external components are
necessary to adjust the blanking window.
An Auto Restart Mode is implemented in the IC to
reduce the average power conversion in the event of
malfunction or unsafe operating condition in the SMPS
system.
This
feature
increases
robustness and safety which would otherwise lead to a
destruction of the SMPS. Once the malfunction is
removed, normal operation is automatically initiated
after the next Start Up Phase.
The internal precise peak current limitation reduces the
costs for the transformer and the secondary diode. The
influence of the change in the input voltage on the
power limitation can be avoided together with the
integrated
Propagation
Therefore the maximum power is nearly independent
on the input voltage which is required for wide range
SMPS. There is no need for an extra over-sizing of the
SMPS, e.g. the transformer or the secondary diode.
the
system’s
Delay
Compensation.
3.2
Power Management
Figure 6
Power Management
The Undervoltage Lockout monitors the external
supply voltage V
. When the SMPS is plugged to the
main line the internal Startup Cell is biased and starts
to charge the external capacitor C
which is
connected to the VCC pin. This VCC charge current
which is provided by the Startup Cell from the Drain pin
is 1.05mA. When V
exceeds the on-threshold
V
=15V the internal voltage reference and bias
circuit are switched on. Then the Startup Cell is
switched off by the Undervoltage Lockout and therefore
no power losses present due to the connection of the
Startup Cell to the Drain voltage. To avoid uncontrolled
ringing at switch-on a hysteresis is implemented. The
switch-off of the controller can only take place after
Active Mode was entered and V
VCC
falls below 8.5V.
The maximum current consumption before the
controller is activated is about 160
μ
A.
When V
falls below the off-threshold V
=8.5V the
internal reference is switched off and the Power Down
reset let T1 discharging the soft-start capacitor C
at
pin SoftS. Thus it is ensured that at every startup cycle
the voltage ramp at pin SoftS starts at zero.
The internal Voltage Reference is switched off if Auto
Restart Mode is entered. The current consumption is
then reduced to 300
μ
A.
Power Management
6.5V
T1
SoftS
Active Burst Mode
Auto Restart Mode
Internal Bias
Voltage
Reference
Startup Cell
VCC
Drain
Undervoltage Lockout
15V
8.5V
Depl-CoolMOS
相關(guān)PDF資料 |
PDF描述 |
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| ICE3B3565I | Off-Line SMPS Current Mode Controller with integrated 650V Startup Cell/CoolMOS |
| ICE3B3565P | Off-Line SMPS Current Mode Controller with integrated 650V Startup Cell/CoolMOS |
| ICE3B0365J | Off-Line SMPS Current Mode Controller with integrated 650V Startup Cell/Depletion CoolMOS⑩ |
| ICE3B1565J | Off-Line SMPS Current Mode Controller with integrated 650V Startup Cell/Depletion CoolMOS⑩ |
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| ICE3A2065ZHKLA1 | 制造商:Infineon Technologies AG 功能描述:Current Mode PWM Controller 650V 2A 7-Pin PDIP 制造商:Infineon Technologies AG 功能描述:AC/DC COOLSET - Rail/Tube 制造商:Infineon Technologies AG 功能描述:IC OFFLINE CTRLR SMPS CM 7DIP |
| ICE3A2565 | 功能描述:電流型 PWM 控制器 Off-Line SMPS Currnt Mode CTRLR 650V RoHS:否 制造商:Texas Instruments 開關(guān)頻率:27 KHz 上升時間: 下降時間: 工作電源電壓:6 V to 15 V 工作電源電流:1.5 mA 輸出端數(shù)量:1 最大工作溫度:+ 105 C 安裝風格:SMD/SMT 封裝 / 箱體:TSSOP-14 |
| ICE3A2565FKLA1 | 制造商:Infineon Technologies AG 功能描述:Current Mode PWM Controller 650V 7A 8-Pin PDIP 制造商:Infineon Technologies AG 功能描述:AC/DC COOLSET - Rail/Tube 制造商:Infineon Technologies AG 功能描述:IC OFFLINE CTRLR SMPS CM 8DIP |
| ICE3A3065I | 功能描述:IC OFFLINE CTRLR SMPS CM TO220 RoHS:是 類別:集成電路 (IC) >> PMIC - AC-DC 轉(zhuǎn)換器，離線開關(guān) 系列:CoolSET®F3 標準包裝:1 系列:FPS™ 輸出隔離:隔離 頻率范圍:61kHz ~ 73kHz 輸入電壓:8 V ~ 26 V 輸出電壓:650V 功率（瓦特）:12W 工作溫度:-40°C ~ 115°C 封裝/外殼:8-DIP（0.300"，7.62mm） 供應商設備封裝:8-MDIP 包裝:Digi-Reel® 其它名稱:FSL206MRBNFSDKR |
| ICE3A3065P | 功能描述:電流型 PWM 控制器 Off-Line SMPS Currnt Mode CTRLR 650V RoHS:否 制造商:Texas Instruments 開關(guān)頻率:27 KHz 上升時間: 下降時間: 工作電源電壓:6 V to 15 V 工作電源電流:1.5 mA 輸出端數(shù)量:1 最大工作溫度:+ 105 C 安裝風格:SMD/SMT 封裝 / 箱體:TSSOP-14 |
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