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| 型号： | SG6961DZ |
| 厂商： | Fairchild Semiconductor |
| 文件页数： | 4/14页 |
| 文件大小： | 835K |
| 描述： | IC PWM CTLR PFC/FORWARD 8-DIP |
| 标准包装： | 59 |
| 模式： | 平均电流 |
| 频率 - 开关： | 50kHz |
| 电流 - 启动： | 10µA |
| 电源电压： | 12 V ~ 20 V |
| 工作温度： | -20°C ~ 125°C |
| 安装类型： | 通孔 |
| 封装/外壳： | 8-DIP（0.300"，7.62mm） |
| 供应商设备封装： | 8-DIP |
| 包装： | 管件 |
?2008 Fairchild Semiconductor Corporation
www.fairchildsemi.com
SG6961 " Rev. 1.3.2
4
Pin Configuration
Figure 4. Pin Configuration
Pin Definitions
Pin # Name Description
1
INV
Inverting Input of the Error Amplifier. INV is connected to the converter output via a resistive
divider. This pin is also used for over-voltage clamping and open-loop feedback protection.
2
COMP
The Output of the Error Amplifier. To create a precise clamping protection, a compensation
network between this pin and GND is suggested.
3
MOT
Maximum On Time. A resistor from MOT to GND is used to determine the maximum on-time
of the external power MOSFET. The maximum output power of the converter is a function of
the maximum on time.
4
CS
Current Sense. Input to the over-current protection comparator. When the sensed voltage
across the sense resistor reaches the internal threshold (0.8V), the switch is turned off to
activate cycle-by-cycle current limiting.
5
ZCD
Zero Current Detection. This pin is connected to an auxiliary winding via a resistor to detect
the zero crossing of the switch current. When the zero crossing is detected, a new switching
cycle is started. If it is connected to GND, the device is disabled.
6
GND
Ground. The power ground and signal ground. Placing a 0.1?/SPAN>F decoupling capacitor between
VCC and GND is recommended.
7
GD
Driver Output. Totem-pole driver output to drive the external power MOSFET. The clamped
gate output voltage is 16.5V.
8
VCC
Power Supply. Driver and control circuit supply voltage.
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| 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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| SG6980DZ | 功能描述:开关变换器、稳压器与控制器 Single Stage PFC 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 |
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