| Parameters | 
                                
                                                                                                            
                                            | Mfr | 
                                            Microchip Technology | 
                                        
                                                                            
                                            | Series | 
                                            FanSense™ | 
                                        
                                                                            
                                            | Package | 
                                            Tape & Reel (TR) | 
                                        
                                                                            
                                            | Product Status | 
                                            Active | 
                                        
                                                                            
                                            | Motor Type - Stepper | 
                                            - | 
                                        
                                                                            
                                            | Motor Type - AC, DC | 
                                            Brushless DC (BLDC) | 
                                        
                                                                            
                                            | Function | 
                                            Controller - Speed | 
                                        
                                                                            
                                            | Output Configuration | 
                                            Pre-Driver - Low Side | 
                                        
                                                                            
                                            | Interface | 
                                            Parallel | 
                                        
                                                                            
                                            | Technology | 
                                            - | 
                                        
                                                                            
                                            | Step Resolution | 
                                            - | 
                                        
                                                                            
                                            | Applications | 
                                            Fan Controller | 
                                        
                                                                            
                                            | Current - Output | 
                                            - | 
                                        
                                                                            
                                            | Voltage - Supply | 
                                            3V ~ 5.5V | 
                                        
                                                                            
                                            | Voltage - Load | 
                                            - | 
                                        
                                                                            
                                            | Operating Temperature | 
                                            -40°C ~ 85°C (TA) | 
                                        
                                                                            
                                            | Mounting Type | 
                                            Surface Mount | 
                                        
                                                                            
                                            | Package / Case | 
                                            8-SOIC (0.154", 3.90mm Width) | 
                                        
                                                                            
                                            | Supplier Device Package | 
                                            8-SOIC | 
                                        
                                                                            
                                            | Base Product Number | 
                                            TC646 | 
                                        
                                                                            
                                            | RoHS Status | 
                                            ROHS3 Compliant | 
                                        
                                                                            
                                            | Moisture Sensitivity Level (MSL) | 
                                            3  (168 Hours) | 
                                        
                                                                            
                                            | REACH Status | 
                                            REACH Unaffected | 
                                        
                                                                            
                                            | ECCN | 
                                            EAR99 | 
                                        
                                                                            
                                            | HTSUS | 
                                            8542.31.0001 | 
                                        
                                                                            
                                            | Standard Package | 
                                            3,300 | 
                                        
                                                                                                    
                            
                         
                                                Motor Driver Parallel 8-SOIC