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LV8860V Datasheet(PDF) 6 Page - Sanyo Semicon Device |
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LV8860V Datasheet(HTML) 6 Page - Sanyo Semicon Device |
6 / 11 page LV8860V No.A1818-6/11 Continued from preceding page. NO. Pin name Function Equivalent circuit 12 RGL Regulator voltage output pin for internal circuit and lower output Tr driver 13 SSW Voltage input pin for control between soft switches * OPEN: pin voltage is 2V * Soft switch zone is changed by connecting a resistance to RGL or GND to adjust pin voltage. 14 GND Ground pin 15 RF Resistive connection pin for current limiter Sample Application Circuit *1 When diode Di is used to prevent destruction of IC from reverse connection, make sure to implement capacitor Cr to secure regenerative current route. *2 If kickback at a phase change is greater, insert zener diode between GND and VCC or implement the larger capacitor between GND and VCC mentioned in *1 *3 Make sure to implement enough capacitance 0.1 μF or greater between RGH pin and VCC pin for stable performance. *4 Make sure to implement enough capacitance 0.1 μF or greater between RGL pin and GND pin for stable performance. *5 FG pin and RD pin are open drain output. Keep the pins open when unused. *6 The current limiter is activated when the current detection resistor voltage exceeds 225mV between RF and GND. Where Rf=0.5 Ω, current limiter is activated at IO=450mA. Setting is made using Rf resistance. *7 Hall element outputs stable hall signal with good temperature characteristic when it is biased with constant voltage from HB pin. If you wish to alleviate heating of IC, do not use HB pin. When you do not use this Pin (Pin HB), pull down with resistor of around 10kΩ (recommended). 12 13 15 1 16 2 3 4 5 6 7 8 15 14 13 12 11 10 9 OUT1 (NC) VCC RGH PWM FG RD (NC) OUT2 RF GND SSW RGL IN2 HB IN1 *4 *6 Rf *7 () RHB H *1 *2 *3 () *5 *5 PWM |
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