| Parameters | 
                                
                                                                                                            
                                            | Width | 
                                            3.9mm | 
                                        
                                                                            
                                            | RoHS Status | 
                                            ROHS3 Compliant | 
                                        
                                                                            
                                            | Lead Free | 
                                            Lead Free | 
                                        
                                                                            
                                            | Factory Lead Time | 
                                            6 Weeks | 
                                        
                                                                            
                                            | Mounting Type | 
                                            Surface Mount | 
                                        
                                                                            
                                            | Package / Case | 
                                            16-SSOP (0.154, 3.90mm Width) | 
                                        
                                                                            
                                            | Surface Mount | 
                                            YES | 
                                        
                                                                            
                                            | Operating Temperature | 
                                            -40°C~85°C TA | 
                                        
                                                                            
                                            | Packaging | 
                                            Tape & Reel (TR) | 
                                        
                                                                            
                                            | Published | 
                                            2006 | 
                                        
                                                                            
                                            | JESD-609 Code | 
                                            e3 | 
                                        
                                                                            
                                            | Pbfree Code | 
                                            yes | 
                                        
                                                                            
                                            | Part Status | 
                                            Active | 
                                        
                                                                            
                                            | Moisture Sensitivity Level (MSL) | 
                                            1  (Unlimited) | 
                                        
                                                                            
                                            | Number of Terminations | 
                                            16 | 
                                        
                                                                            
                                            | ECCN Code | 
                                            EAR99 | 
                                        
                                                                            
                                            | Terminal Finish | 
                                            Matte Tin (Sn) | 
                                        
                                                                            
                                            | HTS Code | 
                                            8542.39.00.01 | 
                                        
                                                                            
                                            | Subcategory | 
                                            Switching Regulator or Controllers | 
                                        
                                                                            
                                            | Technology | 
                                            CMOS | 
                                        
                                                                            
                                            | Terminal Position | 
                                            DUAL | 
                                        
                                                                            
                                            | Terminal Form | 
                                            GULL WING | 
                                        
                                                                            
                                            | Peak Reflow Temperature (Cel) | 
                                            260 | 
                                        
                                                                            
                                            | Number of Functions | 
                                            1 | 
                                        
                                                                            
                                            | Terminal Pitch | 
                                            0.635mm | 
                                        
                                                                            
                                            | Time@Peak Reflow Temperature-Max (s) | 
                                            NOT SPECIFIED | 
                                        
                                                                            
                                            | Base Part Number | 
                                            MAX1640 | 
                                        
                                                                            
                                            | Pin Count | 
                                            16 | 
                                        
                                                                            
                                            | JESD-30 Code | 
                                            R-PDSO-G16 | 
                                        
                                                                            
                                            | Qualification Status | 
                                            Not Qualified | 
                                        
                                                                            
                                            | Input Voltage-Nom | 
                                            12V | 
                                        
                                                                            
                                            | Analog IC - Other Type | 
                                            SWITCHING CONTROLLER | 
                                        
                                                                            
                                            | Control Mode | 
                                            CURRENT-MODE | 
                                        
                                                                            
                                            | Output Current-Max | 
                                            0.02A | 
                                        
                                                                            
                                            | Control Technique | 
                                            CONSTANT OFF TIME | 
                                        
                                                                            
                                            | Nominal Input Voltage | 
                                            26V | 
                                        
                                                                            
                                            | Switcher Configuration | 
                                            PUSH-PULL | 
                                        
                                                                            
                                            | Switching Frequency-Max | 
                                            500kHz | 
                                        
                                                                            
                                            | Current - Charging | 
                                            Constant - Programmable | 
                                        
                                                                            
                                            | Height Seated (Max) | 
                                            1.75mm | 
                                        
                                                                            
                                            | Length | 
                                            4.89mm | 
                                        
                                                                                                    
                            
                         
                                                MAX1640EEE+T Overview
I found it in the Tape & Reel (TR) package, which comes with everything you need.It comes as part of the 16-SSOP (0.154, 3.90mm Width) package.Mounting type Surface Mount matches the device.The best thing to do is to set the temperature to -40°C~85°C TA.This device makes use of an analog IC called SWITCHING CONTROLLER in order to provide its functionality.The device needs to be charged at a current of Constant - Programmable in order to function.Based on the base part number MAX1640, its related parts can be identified.It contains 16 terminations.The device is equipped with a total of 16 pins.Devices belonging to subcategory Switching Regulator or Controllers include this device.The device has an input voltage of 12V.The part's switching frequency is at most 500kHz.
MAX1640EEE+T Features
Switching Regulator or Controllers subcategory
16-SSOP (0.154, 3.90mm Width) package
MAX1640EEE+T Applications
There are a lot of Maxim Integrated MAX1640EEE+T Battery Chargers ICs applications. 
- Mobile lighting
 - Battery backup applications
 - Energy harvesting
 - Forklift
 - Digital camera
 - Medical
 - Portable medical instruments
 - Emergency/Security
 - Smart speakers
 - Portable devices