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参数资料
| 型号： | TDA4863 |
| 厂商： | INFINEON TECHNOLOGIES AG |
| 元件分类： | 稳压器 |
| 英文描述： | POWER FACTOR CONTROLLER, PDIP8 |
| 封装： | PLASTIC, DIP-8 |
| 文件页数： | 25/27页 |
| 文件大小： | 302K |
| 代理商： | TDA4863 |
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TDA4863
Overview
Version 2.1
7
2005-02-18
Pin Definitions and Functions
Pin
Symbol Description
1
VSENSE Voltage Amplifier Inverting Input
VSENSE is connected via a resistive divider to the boost converter
output. With a capacitor connected to VAOUT the internal error
amplifier acts as an integrator.
2
VAOUT
Voltage Amplifier Output
VVAOUT is connected internally to the first multiplier input. To prevent
overshoot the input voltage will be clamped internally at 5 V. Input
voltage less then 2.2 V inhibits the gate driver. If the current flowing
into this pin is exceeding an internal threshold the multiplier output
voltage is reduced to prevent the MOSFET from overvoltage damage.
3MULTIN Multiplier Input
MULTIN is the second multiplier input and is connected via a resistive
divider to the rectifier output voltage.
4
ISENSE Current Sense Input
ISENSE is connected to a sense resistor controlling the MOSFET
source current. The input is internally clamped at -0.3 V to prevent
negative input voltage interaction. A leading edge blanking circuitry
suppresses voltage spits when turning the MOSFET on.
5DETIN
Zero Current Detector Input
DETIN is connected to an auxiliary winding monitoring the zero
crossing of the inductor current.
6GND
Ground
7GTDRV
Gate Driver Output
GTDRV is the output of a totem-pole circuitry for direct driving a
MOSFET. An active shutdown circuitry ensures that GTDRV is low if
the IC is switched off.
8VCC
Positive Voltage Supply
If VCC exceeds the turn-on threshold the IC is switched on. When VCC
falls below the turn-off threshold it is switched off and power
consumption is very low. An auxilliary winding is charging a capacitor
which provides the supply current. A second 100 nF ceramic capacitor
should be added to VCC to absorb supply current spikes required to
charge the MOSFET gate capacitance.
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相关代理商/技术参数 |
参数描述 |
|---|---|
| TDA4863_05 | 制造商:INFINEON 制造商全称:Infineon Technologies AG 功能描述:Power Factor Controller IC for High Power Factor and Low THD |
| TDA48632 | 功能描述:功率因数校正 IC 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 |
| TDA4863-2 | 功能描述:功率因数校正 IC BOOST CONTROLLER FOR HI PWR FACTOR/LW THD 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 |
| TDA4863-2_05 | 制造商:INFINEON 制造商全称:Infineon Technologies AG 功能描述:Power-Factor Controller (PFC) IC for High Power Factor and Low THD |
| TDA48632G | 功能描述:功率因数校正 IC 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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