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HM2269 Datasheet(PDF) 2 Page - Hotchip Technology Co.,Ltd |
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HM2269 Datasheet(HTML) 2 Page - Hotchip Technology Co.,Ltd |
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2 / 13 page  HT2269 2/13 Current Mode PWM Controller www.hotchip.com.cn Ver1.0 TYPICAL APPLICATION INV VIN RT FB VDD SENSE RI GND GATE EMI Filter AC IN DC Out PIN CONFIGURATION Pin Name Pin Num Description GND 1 Ground FB 2 Feedback input pin. PWM duty cycle is determined by voltage level into this pin and current-sense signal level at Pin 6. VIN 3 Connected through a large value resistor to rectified line input for Startup IC supply and line voltage sensing. RI 4 Internal Oscillator frequency setting pin. A resistor connected between RI and GND sets the PWM frequency. RT 5 Temperature sensing input pin. Connected through a NTC resistor to GND. SENSE 6 Current sense input pin. Connected to MOSFET current sensing resistor node. VDD 7 DC power supply pin. GATE 8 Totem-pole gate drive output for power MOSFET. PACKAGE DISSIPATION RATING Package RθJA (°C/W) DIP8 90 SOP8 150 1 2 3 4 5 6 7 8 GND FB VIN RI RT SENSE VDD GATE |
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