TC78B041FNG/TC78B042FTG Pin description Pin symbol I/O signal I/O internal circuit VREF 16-level select input VSP lead angle limiting LAL input Be sure to input voltage in using. VREF 64-level select input Automatic lead angle LAAJ adjusting input Be sure to input voltage in using. VREF IDC 200 kΩ Output current limiting 5 pF IDC Digital filter 18/fosc = 2 μs (typ.) VREF input 0.5V RSG RSI Automatic lead angle When using auto lead angle function, connect detecting input RSI shunt resistor between RSI and RSG. VREF Automatic lead angle RSG When auto lead angle function is not used, detecting for reference connect RSI and RSG to GND. RSG VREF VREFV REF Motor lock detection TR Connecting capacitor for motor lock detection setting Note: RESX pin and VREF2 pin are only for the TC78B042FTG. 9 2018-11-27