| Parameters | 
                                                                                                                        
                                                | Mfr | Unitrode | 
                                                                                    
                                                | Series | - | 
                                                                                    
                                                | Package | Bulk | 
                                                                                    
                                                | Product Status | Active | 
                                                                                    
                                                | Battery Chemistry | Lead Acid | 
                                                                                    
                                                | Number of Cells | - | 
                                                                                    
                                                | Current - Charging | - | 
                                                                                    
                                                | Programmable Features | Current | 
                                                                                    
                                                | Fault Protection | - | 
                                                                                    
                                                | Charge Current - Max | - | 
                                                                                    
                                                | Battery Pack Voltage | - | 
                                                                                    
                                                | Voltage - Supply (Max) | 40V | 
                                                                                    
                                                | Interface | - | 
                                                                                    
                                                | Operating Temperature | -20°C ~ 70°C (TA) | 
                                                                                    
                                                | Mounting Type | Surface Mount | 
                                                                                    
                                                | Package / Case | 20-LCC (J-Lead) | 
                                                                                    
                                                | Supplier Device Package | 20-PLCC (9x9) | 
                                                                                    
                                                | Base Product Number | UC3906 | 
                                                                                    
                                                | RoHS Status | RoHS non-compliant | 
                                                                                    
                                                | Moisture Sensitivity Level (MSL) | 2  (1 Year) | 
                                                                                    
                                                | REACH Status | REACH Unaffected | 
                                                                                    
                                                | ECCN | EAR99 | 
                                                                                    
                                                | HTSUS | 8542.39.0001 | 
                                                                                    
                                                | Standard Package | 1 | 
                                                                                                                
                                
                             
                                                Charger IC Lead Acid 20-PLCC (9x9)