| Parameters | 
                                    
                                                                                                            
                                        | Mfr | 
                                        Analog Devices Inc./Maxim Integrated | 
                                    
                                                                        
                                        | Series | 
                                        - | 
                                    
                                                                        
                                        | Package | 
                                        Bulk | 
                                    
                                                                        
                                        | Product Status | 
                                        Active | 
                                    
                                                                        
                                        | Battery Chemistry | 
                                        Multi-Chemistry | 
                                    
                                                                        
                                        | Number of Cells | 
                                        3 ~ 4 | 
                                    
                                                                        
                                        | Current - Charging | 
                                        Constant - Programmable | 
                                    
                                                                        
                                        | Programmable Features | 
                                        Current, Timer, Voltage | 
                                    
                                                                        
                                        | Fault Protection | 
                                        Over Current | 
                                    
                                                                        
                                        | Charge Current - Max | 
                                        4A | 
                                    
                                                                        
                                        | Battery Pack Voltage | 
                                        17.65V (Max) | 
                                    
                                                                        
                                        | Voltage - Supply (Max) | 
                                        28V | 
                                    
                                                                        
                                        | Interface | 
                                        - | 
                                    
                                                                        
                                        | Operating Temperature | 
                                        -40°C ~ 85°C (TA) | 
                                    
                                                                        
                                        | Mounting Type | 
                                        Surface Mount | 
                                    
                                                                        
                                        | Package / Case | 
                                        28-WFQFN Exposed Pad | 
                                    
                                                                        
                                        | Supplier Device Package | 
                                        28-TQFN (5x5) | 
                                    
                                                                        
                                        | Base Product Number | 
                                        MAX1909 | 
                                    
                                                                        
                                        | RoHS Status | 
                                        RoHS non-compliant | 
                                    
                                                                        
                                        | Moisture Sensitivity Level (MSL) | 
                                        1  (Unlimited) | 
                                    
                                                                        
                                        | REACH Status | 
                                        REACH Affected | 
                                    
                                                                        
                                        | ECCN | 
                                        EAR99 | 
                                    
                                                                        
                                        | HTSUS | 
                                        8542.39.0001 | 
                                    
                                                                        
                                        | Standard Package | 
                                        1 | 
                                    
                                                                                                        
                            
                         
                                                Charger IC Multi-Chemistry 28-TQFN (5x5)