| Parameters | 
                                                                                                                        
                                                | Voltage - Supply (Vcc/Vdd) | 4.75V ~ 5.25V | 
                                                                                    
                                                | Current - Output (Max) | 300mA | 
                                                                                    
                                                | Rds On (Typ) | - | 
                                                                                    
                                                | Input Type | Non-Inverting | 
                                                                                    
                                                | Features | Status Flag | 
                                                                                    
                                                | Fault Protection | Current Limiting (Fixed), Over Temperature | 
                                                                                    
                                                | Operating Temperature | -40°C ~ 85°C (TA) | 
                                                                                    
                                                | Mounting Type | Surface Mount | 
                                                                                    
                                                | Supplier Device Package | 16-SOIC | 
                                                                                    
                                                | Package / Case | 16-PowerSOIC (0.295", 7.50mm Width) | 
                                                                                    
                                                | Base Product Number | A2557 | 
                                                                                    
                                                | RoHS Status | RoHS non-compliant | 
                                                                                    
                                                | Moisture Sensitivity Level (MSL) | 1  (Unlimited) | 
                                                                                    
                                                | REACH Status | REACH Unaffected | 
                                                                                    
                                                | ECCN | EAR99 | 
                                                                                    
                                                | HTSUS | 8542.39.0001 | 
                                                                                    
                                                | Standard Package | 47 | 
                                                                                    
                                                | Mfr | Allegro MicroSystems | 
                                                                                    
                                                | Series | - | 
                                                                                    
                                                | Package | Bulk | 
                                                                                    
                                                | Product Status | Obsolete | 
                                                                                    
                                                | Switch Type | Relay, Solenoid Driver | 
                                                                                    
                                                | Number of Outputs | 4 | 
                                                                                    
                                                | Ratio - Input:Output | 1:1 | 
                                                                                    
                                                | Output Configuration | Low Side | 
                                                                                    
                                                | Output Type | Bipolar | 
                                                                                    
                                                | Interface | On/Off | 
                                                                                    
                                                | Voltage - Load | 60V (Max) | 
                                                                                                                
                                
                             
                                                Power Switch/Driver 1:1 Bipolar 300mA 16-SOIC