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| Part Number | UC3638DWG4 | UC2638DWG4 | 
|---|---|---|
| Manufacturer | Texas Instruments | Texas Instruments | 
| Product Status | Discontinued at Digi-Key | Discontinued at Digi-Key | 
| Motor Type - Stepper | - | - | 
| Motor Type - AC, DC | Brushed DC | Brushed DC | 
| Function | Controller - Commutation, Direction Management | Controller - Commutation, Direction Management | 
| Output Configuration | Pre-Driver - Half Bridge (2) | Pre-Driver - Half Bridge (2) | 
| Interface | Parallel | Parallel | 
| Technology | - | - | 
| Step Resolution | - | - | 
| Applications | General Purpose | General Purpose | 
| Current - Output | - | - | 
| Voltage - Supply | 10V ~ 36V | 10V ~ 36V | 
| Voltage - Load | - | - | 
| Operating Temperature | 0°C ~ 70°C (TA) | -25°C ~ 85°C (TA) | 
| Mounting Type | Surface Mount | Surface Mount | 
| Package / Case | 20-SOIC (0.295", 7.50mm Width) | 20-SOIC (0.295", 7.50mm Width) | 
| Supplier Device Package | 20-SOIC | 20-SOIC |