| Part Number | UC3637N | UC3638N | 
|---|---|---|
| Manufacturer | Texas Instruments | Texas Instruments | 
| Category | PMIC - Motor Drivers, Controllers | PMIC - Motor Drivers, Controllers | 
|   |   | |
| Product Status | Active | Active | 
| 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 (4) | Pre-Driver - Half Bridge (2) | 
| Interface | Parallel | Parallel | 
| Technology | - | - | 
| Step Resolution | - | - | 
| Applications | General Purpose | General Purpose | 
| Current - Output | - | - | 
| Voltage - Supply | 2.5V ~ 20V | 10V ~ 36V | 
| Voltage - Load | - | - | 
| Operating Temperature | 0°C ~ 70°C (TA) | 0°C ~ 70°C (TA) | 
| Mounting Type | Through Hole | Through Hole | 
| Package / Case | 18-DIP (0.300", 7.62mm) | 20-DIP (0.300", 7.62mm) | 
| Supplier Device Package | 18-PDIP | 20-PDIP |