| Parameters | 
                                                                                                            
                                            | Mfr | Unitrode | 
                                                                            
                                            | Series | - | 
                                                                            
                                            | Package | Bulk | 
                                                                            
                                            | Product Status | Active | 
                                                                            
                                            | Battery Chemistry | Lithium Ion | 
                                                                            
                                            | Number of Cells | - | 
                                                                            
                                            | Current - Charging | Constant - Programmable | 
                                                                            
                                            | Programmable Features | - | 
                                                                            
                                            | Fault Protection | - | 
                                                                            
                                            | Charge Current - Max | 120mA | 
                                                                            
                                            | Battery Pack Voltage | 4.1V | 
                                                                            
                                            | Voltage - Supply (Max) | 20V | 
                                                                            
                                            | Interface | - | 
                                                                            
                                            | Operating Temperature | 0°C ~ 70°C (TA) | 
                                                                            
                                            | Mounting Type | Through Hole | 
                                                                            
                                            | Package / Case | 20-DIP (0.300", 7.62mm) | 
                                                                            
                                            | Supplier Device Package | 20-PDIP | 
                                                                            
                                            | Base Product Number | UCC3956 | 
                                                                            
                                            | RoHS Status | RoHS non-compliant | 
                                                                            
                                            | Moisture Sensitivity Level (MSL) | 3  (168 Hours) | 
                                                                            
                                            | REACH Status | REACH Unaffected | 
                                                                            
                                            | ECCN | EAR99 | 
                                                                            
                                            | HTSUS | 8542.39.0001 | 
                                                                            
                                            | Standard Package | 1 | 
                                                                                                    
                            
                         
                                                Charger IC Lithium Ion 20-PDIP