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AN8011S Arkusz danych(PDF) 2 Page - Panasonic Semiconductor |
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AN8011S Arkusz danych(HTML) 2 Page - Panasonic Semiconductor |
2 / 16 page 2 AN8011S Voltage Regulators s Pin Descriptions Pin No. Symbol Description 1 CT Pin for connecting the oscillation frequency setting capacitor for triangular oscillation circuit. Frequecy of triangular oscillation is set by connecting a capacitor between this terminal and GND. 2 RT Resistor connection pin for setting the oscillation frequency of triangular oscillation circuit. Frequecy of triangular oscillation is set by connecting resistance between the pin and GND 3 On/Off "On/Off" pin for turning on/off IC. "Low" stops IC (output off) and "High" operates IC. 4IN −2 Inverted input pin for channel 2 error amplifier 5 F/B 2 Output pin for channel 2 error amplifier. Gain setting or phase compensation is per- formed by connecting resistor or capacitor between the pin and IN −2. It is also connected to PWM short-circuit protecion. 6 DTC 2 Pin for setting dead-time period of channel 2. The dead-time of channel 2 is set by connecting external resistor. Soft start function can be also given by connecting capaci- tor in parallel with the external resistor. In addition, only channel 2 output can be turned off by decreasing the pin voltage to below 0.12 V. (short-circuit protection function stop circuit) 7 Out 2 Channel 2 open-collector type output pin. IO = 100 mA maximum 8 GND Grounding pin of signal system. 9VCC Power supply voltage application pin. It detects start voltage and stop voltages 10 Out 1 Channel 1 open-collector type output pin. IO = 100 mA maximum 11 DTC 1 Pin for setting dead-time period of channel 1. The dead-time period of channel 1 is set by connecting external resistor. Soft start function can be also given by connecting capacitor in parallel with the external resistor. In addition, only channel 1 output can be turned off by decreasing the pin voltage to below 0.12 V. (short-circuit protection function stop circuit) 12 F/B 1 Output pin for channel 1 error amplifier. Gain setting or phase compensation is per formed by connecting resistor or capacitor between the pin and IN −1. It is also con nected to PWM short-circuit protection. 13 IN −1 Inverted input pin for channel 1 error amplifier. 14 IN + Pin for noninverted input of channel 1error amplifier. 15 Latch Pin for connecting the time constant setting capacitor for timer latch type short-circuit protection circuit. The time constant for short-circuit protection is set by connecting a capacitor between this terminal and GND. 16 VREF Internal reference voltage output pin (2.5 V(allowance: ±3%)). If a load of 20 mA typical or more is applied, the overcurrent protection operates to reduce VREF and switching operation stops. |
Podobny numer części - AN8011S |
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Podobny opis - AN8011S |
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