| Parameters | 
                                
                                                                                                            
                                            | Mount | 
                                            Surface Mount | 
                                        
                                                                            
                                            | Mounting Type | 
                                            Surface Mount | 
                                        
                                                                            
                                            | Package / Case | 
                                            44-LCC (J-Lead) | 
                                        
                                                                            
                                            | Number of Pins | 
                                            44 | 
                                        
                                                                            
                                            | Supplier Device Package | 
                                            44-PLCC (16.59x16.59) | 
                                        
                                                                            
                                            | Operating Temperature | 
                                            -40°C~150°C TJ | 
                                        
                                                                            
                                            | Packaging | 
                                            Tape & Reel (TR) | 
                                        
                                                                            
                                            | Published | 
                                            2003 | 
                                        
                                                                            
                                            | Part Status | 
                                            Obsolete | 
                                        
                                                                            
                                            | Moisture Sensitivity Level (MSL) | 
                                            3  (168 Hours) | 
                                        
                                                                            
                                            | Max Operating Temperature | 
                                            125°C | 
                                        
                                                                            
                                            | Min Operating Temperature | 
                                            -40°C | 
                                        
                                                                            
                                            | Applications | 
                                            General Purpose | 
                                        
                                                                            
                                            | Technology | 
                                            DMOS | 
                                        
                                                                            
                                            | Voltage - Supply | 
                                            3V~5.5V | 
                                        
                                                                            
                                            | Base Part Number | 
                                            A3977 | 
                                        
                                                                            
                                            | Function | 
                                            Driver - Fully Integrated, Control and Power Stage | 
                                        
                                                                            
                                            | Number of Outputs | 
                                            1 | 
                                        
                                                                            
                                            | Operating Supply Voltage | 
                                            5V | 
                                        
                                                                            
                                            | Interface | 
                                            Logic | 
                                        
                                                                            
                                            | Max Supply Voltage | 
                                            5.5V | 
                                        
                                                                            
                                            | Min Supply Voltage | 
                                            3V | 
                                        
                                                                            
                                            | Output Configuration | 
                                            Half Bridge (4) | 
                                        
                                                                            
                                            | Current - Output | 
                                            2.5A | 
                                        
                                                                            
                                            | Voltage - Load | 
                                            8V~35V | 
                                        
                                                                            
                                            | Motor Type - Stepper | 
                                            Bipolar | 
                                        
                                                                            
                                            | Step Resolution | 
                                            1, 1/2, 1/4, 1/8 | 
                                        
                                                                            
                                            | Radiation Hardening | 
                                            No | 
                                        
                                                                            
                                            | RoHS Status | 
                                            ROHS3 Compliant | 
                                        
                                                                            
                                            | Lead Free | 
                                            Lead Free | 
                                        
                                                                                                    
                            
                         
                                                A3977KEDTR-T Overview
The design includes a package of type [0].This part is packaged with a case of [0].Mounting the part by Surface Mountis recommended.I believe it is suitable for the component connected to General Purpose.This device is capable of supplying voltages up to 3V~5.5V volts.Operation temperature ranges from -40°C~150°C TJ.Drivers controllers is possible to apply voltage at a rate of 8V~35Vto the load.There is a recommended mounting method of Surface Mount.Maintain a 2.5Aoutput current for the part.Drivers controllers is based on the A3977 part number.In this device, there are 44 pins.There are a total of 1outputs available.A supply voltage of 5Vis required to operate this driver.125°Cis the maximum operating temperature.A temperature greater than -40°Cshould be used for operation.This device can be used with a maximum voltage of 5.5V.With a minimum supply voltage of [0], the device can function.
A3977KEDTR-T Features
Applications : General Purpose
Load voltage across the chip 8V~35V
base on A3977 number
designed with 1 outputs
A3977KEDTR-T Applications
There are a lot of Allegro MicroSystems A3977KEDTR-T motor drivers applications. 
- LED ballasts
 - Accurate LED current matching
 - Automotive exterior and interior lighting
 - Home lighting systems
 - Arena lighting 
 - High power LED street light
 - Charge pump circuits
 - A cross between entertainment
 - Large outdoor LED display
 - Fog lamps