TC78B041FNG/TC78B042FTG Pin description Pin symbol I/O signal I/O internal circuit Digital filter 18/fosc = 2 μs (typ.) Forward/Reverse CWCCW control input Ω H: Reverse (CCW) k L/Open: Forward (CW) 100 VREF Digital filter 18/fosc = 2μs (typ.) VSP setting select MODE input H: VSP input (B mode) Ω L/Open: VSP input (A mode) 100 k VREF Ω Digital filter 18/fosc=2μs (typ.) Error detection positive RES 100 k input H/Open: Operation Ω L: Stop (commutation signal output: Low)) M V 1 5 2. Digital filter 18/fosc = 2 μs (typ.) Error detection RESX negative input (Note) H: Stop (commutation signal output: Low) Ω V L/OPEN: Operation 5 100 k 2. 10-level select input Select input for FG pin FGC setting Be sure to input voltage in using. VREF 32-level select input Lead angle setting LA input Be sure to input voltage in using. VREF Select input: sine-wave 4-level select input generation and lead LAS angle function Be sure to input voltage in using. 8 2018-11-27