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| 型号： | SG6932DZ |
| 厂商： | Fairchild Semiconductor |
| 文件页数： | 16/20页 |
| 文件大小： | 919K |
| 描述： | IC PFC CONTROLLER CCM 16DIP |
| 标准包装： | 30 |
| 模式： | 连续导电（CCM） |
| 频率 - 开关： | 65kHz |
| 电流 - 启动： | 10µA |
| 电源电压： | 14 V ~ 20 V |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 通孔 |
| 封装/外壳： | 16-DIP（0.300"，7.62mm） |
| 供应商设备封装： | 16-DIP |
| 包装： | 管件 |
?2007 Fairchild Semiconductor Corporation
www.fairchildsemi.com
SG6932 " Rev. 1.1.3
16
PCB Layout
SG6932 has a single ground pin, which prevents high
sink currents in the output being returned separately.
Good high-frequency or RF layout practices should be
followed. Avoid long PCB traces and component leads.
Locate decoupling capacitors near the SG6932. A
resistor (5 ~ 20? is recommended, connected in
series from the output to the gate of the MOSFET.
Isolating the interference between the PFC and PWM
stages is also important. Figure 32 shows an example
of the PCB layout. The ground trace 1 is connected
from the ground pin to the decoupling capacitor, which
should be low impedance and as short as possible. The
ground trace 2 provides a signal ground and should be
connected directly to the decoupling capacitor C
DD
and/or to the ground pin. The ground trace 3 is
independently tied from the decoupling capacitor to the
PFC output capacitor C
O
.
The ground in the output capacitor C
O
is the major
ground reference for power switching. To provide a
good ground reference and reduce the switching noise
of both the PFC and PWM stages, the ground traces 6
and 7 should be located very near and be low
impedance.
The IPFC pin is connected directly to R
S
through R
3
to
improve noise immunity. Do not incorrectly connect
to the ground trace 2. The IMP and ISENSE pins
should also be connected directly via the resistors R
2
and R
P
to another terminal of R
S
.
Figure 32. PCB Layout
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相关代理商/技术参数 |
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|---|---|
| SG6932SZ | 功能描述:开关变换器、稳压器与控制器 Green mode PFC/Forw PWM Controller RoHS:否 制造商:Texas Instruments 输出电压:1.2 V to 10 V 输出电流:300 mA 输出功率: 输入电压:3 V to 17 V 开关频率:1 MHz 工作温度范围: 安装风格:SMD/SMT 封装 / 箱体:WSON-8 封装:Reel |
| SG6961 | 制造商:FAIRCHILD 制造商全称:Fairchild Semiconductor 功能描述:Power Factor Controller |
| SG6961BSTA_DBB14 WAF | 制造商:Fairchild Semiconductor Corporation 功能描述: |
| SG6961DZ | 功能描述:功率因数校正 IC Grn Mode PFC/Forward PWM Controller RoHS:否 制造商:Fairchild Semiconductor 开关频率:300 KHz 最大功率耗散: 最大工作温度:+ 125 C 安装风格:SMD/SMT 封装 / 箱体:SOIC-8 封装:Reel |
| SG6961SY | 功能描述:功率因数校正 IC Power Factor Controller RoHS:否 制造商:Fairchild Semiconductor 开关频率:300 KHz 最大功率耗散: 最大工作温度:+ 125 C 安装风格:SMD/SMT 封装 / 箱体:SOIC-8 封装:Reel |
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