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KA7526D 数据表(PDF) 3 Page - Fairchild Semiconductor |
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KA7526D 数据表(HTML) 3 Page - Fairchild Semiconductor |
3 / 22 page KA7526 3 PIN Assignments Pin Definitions Pin Number Pin Name Pin Function Descrition 1 INV Inverting input of the error amplifier. The output of the boost converter should be resistively divided to 2.5V and con- nected to this pin. 2EA OUT The output of the error amplifier. A feedback compensation network is placed between this pin and the INV pin 3MULT Input to the multiplier stage. The full-wave rectified AC is divided to less than 3.8V and is connected to this pin. 4CS Input to the PWM comparator. The Current is sensed in the boost stage by a resistor in the source lead of MOSFET. An internal leading edge blanking circuitry has been included to reject any high frequency noise present on the current waveform. 5 Idet The zero current detector senses the inductor current by monitoring when the boost inductor auxilary winding voltage falls below 1.8V. 6 GND The ground potential of all the pins. 7OUT The output of a high-current power driver capable of driving the gate of a power MOSFET. 8VCC The logic and control power supply connection. 1 2 3 45 6 7 8 INV EA OUT MULT CS Vcc OUT GND Idet (Top View) |
类似零件编号 - KA7526D |
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类似说明 - KA7526D |
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