SECTION 4
Description of major ICs
4.1BA6956AN (IC830, IC831) : Reversible motor driver
• Block diagram
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| TSD |
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| CONTROL LOGIC |
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1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 |
VREF | OUT2 | RNF | OUT1 | VM | Vcc | FIN | GND | RIN |
• | Pin function |
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Pin No. | Symbol | Function | |
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1 |
| VREF | Output high voltage level control terminal |
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2 |
| OUT2 | Output terminal for motor |
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3 |
| RNF | GND of driver division |
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4 |
| OUT1 | Output terminal for motor |
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5 |
| VM | Power supply for driver division |
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6 |
| Vcc | Power supply for signal division |
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7 |
| FIN | Input terminal for control logic |
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8 |
| GND | GND |
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9 |
| RIN | Input terminal for control logic |
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• Truth table
FIN | RIN | OUT1 | OUT2 | MODE |
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H | L | H | L | Forward rotation mode |
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L | H | L | H | Reverse rotation mode |
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H | H | L | L | Break Mode |
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L | L | OPEN | OPEN | |
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