A3977KLPTR
IC MTR DRV BIPOLR 3-5.5V 28TSSOP
Pmic Motor Drivers Controllers
28-TSSOP (0.173", 4.40mm Width) Exposed Pad
Obsolete
Price available on request
MOQ: 1 pcs
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Parameters
| Parameter | Value |
|---|---|
| Brand | Allegro MicroSystems |
| Model | A3977KLPTR |
| Package / Case | 28-TSSOP (0.173", 4.40mm Width) Exposed Pad |
| Mounting Type | Surface Mount |
| Operating Temperature | -40°C ~ 150°C (TJ) |
| Topology | Driver - Fully Integrated, Control and Power Stage |
| Current - Output | 2.5A |
| Supplier Device Package | 28-TSSOP-EP |
| RoHS | RoHS |
| Part Status | Obsolete |
Application & Notes
A3977KLPTR by Allegro MicroSystems is a Driver - Fully Integrated, Control and Power Stage IC commonly used in power supply designs, battery-powered devices, and DC-DC conversion modules. Input voltage up to N/A, output adjustable. The 28-TSSOP (0.173", 4.40mm Width) Exposed Pad package with surface mount mounting is standard for compact designs. Pay attention to input/output capacitor selection and PCB layout — switching regulators are sensitive to trace inductance.
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All Technical Specifications
| Function | Driver - Fully Integrated, Control and Power Stage |
| Interface | Logic |
| Technology | DMOS |
| Applications | General Purpose |
| Voltage - Load | 8V ~ 35V |
| Step Resolution | 1, 1/2, 1/4, 1/8 |
| Current - Output | 2.5A |
| Voltage - Supply | 3V ~ 5.5V |
| Motor Type - Stepper | Bipolar |
| Output Configuration | Half Bridge (4) |
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