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參數(shù)資料
| 型號： | ICE3B3565P |
| 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： | 離線式開關電源電流模式控制器，集成了?650V啟動單元/的CoolMOS |
| 文件頁數(shù)： | 13/30頁 |
| 文件大?。?/td> | 1223K |
| 代理商： | ICE3B3565P |
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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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相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| ICE3B3565PBKSA1 | 制造商:Infineon Technologies AG 功能描述:Current Mode PWM Controller 650V 300mA 6-Pin(6+Tab) TO-220 制造商:Infineon Technologies AG 功能描述:IC OFFLINE CTRLR SMPS OTP TO220 |
| ICE3B5065I | 功能描述:IC OFFLINE CTRLR SMPS OTP TO220 RoHS:是 類別:集成電路 (IC) >> PMIC - AC-DC 轉換器，離線開關 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 |
| ICE3B5065IXK | 制造商:Infineon Technologies AG 功能描述:Current Mode PWM Controller 650V 5A 6-Pin(6+Tab) TO-220 |
| ICE3B5065P | 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 |
| ICE3B5065P2XK | 制造商:Infineon Technologies AG 功能描述:GREEN, COOLSET |
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