| Parameters | 
                                                                                                            
                                        | Mfr | Skyworks Solutions Inc. | 
                                                                        
                                        | Series | - | 
                                                                        
                                        | Package | Tube | 
                                                                        
                                        | Product Status | Obsolete | 
                                                                        
                                        | Type | Controller (PSE) | 
                                                                        
                                        | Number of Channels | 4 | 
                                                                        
                                        | Power - Max | 40 W | 
                                                                        
                                        | Internal Switch(s) | Yes | 
                                                                        
                                        | Auxiliary Sense | No | 
                                                                        
                                        | Standards | 802.3at (PoE+), 802.3af (PoE) | 
                                                                        
                                        | Voltage - Supply | 45V ~ 57V | 
                                                                        
                                        | Current - Supply | 3.7mA | 
                                                                        
                                        | Operating Temperature | -40°C ~ 85°C | 
                                                                        
                                        | Mounting Type | Surface Mount | 
                                                                        
                                        | Package / Case | 40-VFQFN Exposed Pad | 
                                                                        
                                        | Supplier Device Package | 40-QFN (6x6) | 
                                                                        
                                        | Base Product Number | SI3452 | 
                                                                        
                                        | Moisture Sensitivity Level (MSL) | 3  (168 Hours) | 
                                                                        
                                        | ECCN | EAR99 | 
                                                                        
                                        | HTSUS | 8542.39.0001 | 
                                                                        
                                        | Standard Package | 50 | 
                                                                                                        
                            
                         
                                                Power Over Ethernet Controller 4 Channel 802.3at (PoE+), 802.3af (PoE) 40-QFN (6x6)