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參數(shù)資料
| 型號(hào)： | ICE3B0365 |
| 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(dòng)單元/的CoolMOS |
| 文件頁數(shù)： | 13/30頁 |
| 文件大?。?/td> | 1223K |
| 代理商： | ICE3B0365 |
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CoolSET-F3
Functional Description
Version 1.3
13
15 Sep 2004
3.4
PWM Section
Figure 9
PWM Section
3.4.1
The oscillator generates a fixed frequency. The
switching frequency of ICE3Axx65x is f
= 100kHz
and for ICE3Bxx65x f
= 67kHz. A resistor, a
capacitor and a current source and current sink which
determine the frequency are integrated. The charging
and discharging current of the implemented oscillator
capacitor are internally trimmed, in order to achieve a
very accurate switching frequency. The ratio of
controlled charge to discharge current is adjusted to
reach a maximum duty cycle limitation of D
max
=0.72.
Oscillator
3.4.2
The oscillator clock output provides a set pulse to the
PWM-Latch when initiating the external Power Switch
conduction. After setting the PWM-Latch can be reset
by the PWM comparator, the Soft Start comparator or
the Current-Limit comparator. In case of resetting, the
driver is shut down immediately.
PWM-Latch FF1
3.4.3
Gate Driver
Figure 10
Gate Driver
The driver-stage is optimized to minimize EMI and to
provide high circuit efficiency. This is done by reducing
the switch on slope when exceeding the internal
CoolMOS threshold. This is achieved by a slope
control of the rising edge at the driver’s output (see
Figure 10).
Figure 11
Gate Rising Slope
Thus the leading switch on spike is minimized. When
the integrated CoolMOS is switched off, the falling
shape of the driver is slowed down when reaching 2V
to prevent an overshoot below ground. Furthermore the
driver circuit is designed to eliminate cross conduction
of the output stage. During powerup when VCC is
below the undervoltage lockout threshold V
, the
output of the Gate Driver is low to disable power
transfer to the seconding side.
Oscillator
Duty Cycle
max
Gate Driver
0.72
Clock
&
G9
1
G8
PWM Section
FF1
R
S
Q
Gate
Soft Start
Comparator
PWM
Comparator
Current
Limting
VCC
1
PWM-Latch
CoolMOS
Gate Driver
Gate
t
(internal) V
Gate
5V
ca. t = 130ns
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| ICE3B2065 | Off-Line SMPS Current Mode Controller with integrated 650V Startup Cell/CoolMOS |
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| ICE3B0365J | 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(shí)間: 下降時(shí)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(fēng)格:SMD/SMT 封裝 / 箱體:TSSOP-14 |
| ICE3B0365J_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 CoolMOS? and Startup cell (frequency jitter Mode) in DIP-8 Product Highlights |
| ICE3B0365JFKLA1 | 制造商:Infineon Technologies AG 功能描述:Current Mode PWM Controller 650V 300mA 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 OTP 8DIP |
| ICE3B0365JG | 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(shí)間: 下降時(shí)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(fēng)格:SMD/SMT 封裝 / 箱體:TSSOP-14 |
| ICE3B0365JGXUMA1 | 制造商:Infineon Technologies AG 功能描述:Current Mode PWM Controller 650V 300mA 制造商:Infineon Technologies AG 功能描述:Current Mode PWM Controller 650V 300mA 12-Pin DSO 制造商:Infineon Technologies AG 功能描述:AC/DC COOLSET - Tape and Reel 制造商:Infineon Technologies AG 功能描述:IC OFFLINE CTRLR SMPS OTP DSO16 |
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