A2557EEB
IC PWR DRIVER BIPOLAR 1:1 28PLCCManufacturer: Allegro MicroSystems
Categories: Power Distribution Switches, Load Drivers
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Allegro MicroSystems A2557EEB is a bipolar power driver designed for driving relays and solenoids. This 1:1 ratio component features four low-side bipolar outputs, each capable of delivering up to 300mA. Integrated fault protection includes fixed current limiting and over-temperature shutdown, with a status flag indicating fault conditions. The input is non-inverting and controlled via an ON/OFF interface. Supplied in a 28-PLCC (J-Lead) surface mount package, it operates within a voltage range of 4.75V to 5.25V and supports load voltages up to 60V. The operating temperature range is -40°C to 85°C (TA). This component finds application in industrial automation and automotive systems requiring robust power switching capabilities.
Additional Information
Series: -RoHS Status: RoHS non-compliantManufacturer Lead Time: No lead time information availableProduct Status: ObsoletePackaging: TubeDownload Free CAD Model:
Technical Details:
| Features | Status Flag |
| Packaging | Tube |
| Package / Case | 28-LCC (J-Lead) |
| Output Type | Bipolar |
| Mounting Type | Surface Mount |
| Number of Outputs | 4 |
| Interface | ON/OFF |
| Switch Type | Relay, Solenoid Driver |
| Operating Temperature | -40°C ~ 85°C (TA) |
| Output Configuration | Low Side |
| Rds On (Typ) | - |
| Input Type | Non-Inverting |
| Voltage - Load | 60V (Max) |
| Voltage - Supply (Vcc/Vdd) | 4.75V ~ 5.25V |
| Current - Output (Max) | 300mA |
| Ratio - Input:Output | 1:1 |
| Supplier Device Package | 28-PLCC (11.51x11.51) |
| Fault Protection | Current Limiting (Fixed), Over Temperature |
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