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A4480 Datasheet

Part Number A4480
Manufacturers Allegro
Logo Allegro
Description Automotive Regulator
Datasheet A4480 DatasheetA4480 Datasheet (PDF)

A4480 Wide Input 5 V, 50 mA, Automotive Regulator with Output Short-to-Battery Protection and Power OK FEATURES AND BENEFITS • Automotive AEC-Q100 qualified • Wide operating range of 3.5 to 28 V, with 40 V load dump rating • Linear regulator output with foldback short-circuit and short-to-battery protection • Boost function to maintain output when input is low • Power OK (POK) flag • High-voltage logic-level enable input (ENB) for microprocessor or ignition control • Pin-to-pin and pin-to-grou.

  A4480   A4480






Part Number A4481
Manufacturers Allegro
Logo Allegro
Description 50mA Automotive Linear Regulator
Datasheet A4480 DatasheetA4481 Datasheet (PDF)

A4481 5 VOUT , 50 mA Automotive Linear Regulator with 50 V Load Dump and Short-to-Battery Protection FEATURES AND BENEFITS • Automotive AEC-Q100 qualified • 5.25 to 40 VIN operating range, 50 V load dump rating • 5 V ±1% internal LDO regulator • Foldback short-circuit protection • Short-to-battery protection (to 32 V, independent of VIN) for harness faults • Power OK (POK) flag • High-voltage logic level enable input (ENB) for microprocessor control or connection directly to battery • Pin-to-pi.

  A4480   A4480







Automotive Regulator

A4480 Wide Input 5 V, 50 mA, Automotive Regulator with Output Short-to-Battery Protection and Power OK FEATURES AND BENEFITS • Automotive AEC-Q100 qualified • Wide operating range of 3.5 to 28 V, with 40 V load dump rating • Linear regulator output with foldback short-circuit and short-to-battery protection • Boost function to maintain output when input is low • Power OK (POK) flag • High-voltage logic-level enable input (ENB) for microprocessor or ignition control • Pin-to-pin and pin-to-ground tolerant at every pin APPLICATIONS • Microcontroller power • Transceivers (CAN, LIN, etc.) power supplies • Sensors PACKAGE 8-pin SOIC with exposed thermal pad (suffix LJ) DESCRIPTION The A4480 is a wide input regulator with complete control, diagnostics, and protection features that address many requirements of automotive applications. It includes a boost function to allow operation with input voltages from 3.5 to 28 V, while maintaining a 5 V output voltage. The A4480 is able to supply up to 50 mA of load current. An enable pin (ENB) allows control of the regulator output. This pin is rated to operate at up to 40 V, so it can be connected directly to a car battery. Diagnostic output from the A4480 includes an open-drain Power OK (POK) output to alert the microprocessor that a fault has occurred. Protection features include input undervoltage lockout (UVLO), foldback overcurrent protection, output under/overvoltage protections (UV/OVP), and thermal shutdown (TSD). In addition, the.


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