AIWA AM-HX50 Service Manual - Page 24

IC, BD6601KVT Pin No. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 Pin Name SGND ASGND PWIN1 PWIN2 FG BRK- BRK+ CSL2 CSL1 CST SPPG2 SPWOUT SPVM2 NC SPVOUT NC SPPG1 NC SPUOUT SPVM1 SPCOM SPWIN SPVIN SPUIN H2PG2 NC H2ROUT NC H2VM NC H2FOUT NC H2PG1 H1PG2 NC H1ROUT NC H1VM H1FOUT H1PG1 VCC1 I/O Description - GND for small signal circuit (MOS). - GND for small signal circuit (Bipolar). I Half bridge 1 input. I Half bridge 2 input. O FG output. I Brake comparator input (-). I Brake comparator input (+). - The terminal 2 to which slope capacitor is connected. - The terminal 1 to which slope capacitor is connected. - The terminal to which startup oscillator capacitor is connected. - Spindle power block GND2. O Spindle motor output. (W-phase) - Spindle power block power supply 1. - Not used. O Spindle motor output (V-phase). - Not used. - Spindle power block GND1. - Not used. O Spindle motor output (U-phase). - Spindle power block power supply 1. I SP IN motor coil intermediate point input terminal. I SP IN detection comparator input (W-phase). I SP IN detection comparator input (V-phase). I SP IN detection comparator input (U-phase). - H bridge 2 power block GND2. - Not used. O H bridge 2 reverse polarity output. - Not used. - H bridge 2 power block power supply. - Not used. O H bridge 2 power forward polarity output. - Not used. - H bridge 2 power block GND1. - H bridge 1 power block GND2. - Not used. O H bridge 1 reverse polarity output. - Not used. - H bridge 1 power block power supply. O H bridge 1 forward polarity output. - H bridge 1 power block GND1. - The power supply terminal 1 for small signal circuit. (MOS). 28