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FAN8831 Arkusz danych(PDF) 4 Page - ON Semiconductor |
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FAN8831 Arkusz danych(HTML) 4 Page - ON Semiconductor |
4 / 12 page © 2014 Fairchild Semiconductor Corporation www.fairchildsemi.com FAN8831 • Rev. 1.0 3 Pin Configuration FAN8831 EN INPUT OUT2 COMP LX OCP OUT1 FO ADJ NC NC LX Figure 3. Pin Assignments Pin Definitions Pin # Name Description 1,2 PGND1 Power Ground 1. It is connected to the source of the step-up switch. 3 VDD Power supply of step-up DC-DC converter. 4 SGND Signal Ground. The signal ground for step-up DC-DC converter circuitry. 5 ZCD The input of the zero current detection. 6 FB Step-up DC-DC converter output voltage feedback input. 7 COMP Output of the transconductance error amplifier. 8 OCP Sets Step-up DC-DC converter current limit. 9 FO Fault Output. 10 EN Enable pin to turn on and off the overall system. (Active Low Shutdown Mode). 11 INPUT Logic input for sinusoidal waveform. 12 ADJ Output voltage adjust control pin. Connect to internal current source to change output voltage using an external resistor. Connect a small capacitor (1 nF). 13 RT Oscillator frequency control pin. 14 OVP Voltage sense input of Step-up DC-DC converter for Over-Voltage Protection. 15 AGND Analog Ground. The signal ground for full-bridge driver circuitry. 16 VIN Power supply of 5 V LDO. 17 VDRV Power supply of full-bridge driver. 18 PGND2 Power Ground 2. The power ground for full-bridge driver . 19 NC Not Connected 20 OUT2 Output 2 for full-bridge driver. 21 OUT1 Output 1 for full-bridge driver. 22 NC Not Connected 23, 24 LX Switch Node. This pin is connected to the inductor. |
Podobny numer części - FAN8831 |
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Podobny opis - FAN8831 |
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