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Product Detailed Parameters
- Description：IC GATE DRVR HALF-BRIDGE 28TSSOP
- Series：-
- Mfr：Allegro MicroSystems
- Package：Tape & Reel (TR),Cut Tape (CT)
- Driven Configuration：Half-Bridge
- Channel Type：3-Phase
- Number of Drivers：6
- Gate Type：MOSFET (N-Channel)
- Voltage - Supply：5.5V ~ 50V
- Logic Voltage - VIL, VIH：-
- Current - Peak Output (Source, Sink)：-
- Input Type：Non-Inverting
- Rise / Fall Time (Typ)：-
- Operating Temperature：-40°C ~ 175°C (TJ)
- Mounting Type：Surface Mount
- Package / Case：28-TSSOP (0.173", 4.40mm Width) Exposed Pad
- Supplier Device Package：28-TSSOP-EP
- Grade：-
- Qualification：-
- High Side Voltage - Max (Bootstrap)：-
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Overview
The A4937KLPTR-A-T is a three-phase MOSFET gate driver IC from Allegro Microsystems, designed for automotive applications. It features a half-bridge architecture with non-inverting outputs to drive external N-channel power MOSFETs. The device operates within a supply voltage range of 5.5 V to 50 V and is housed in a 28-pin TSSOP-EP package. It integrates protection mechanisms including overcurrent protection and thermal shutdown to ensure reliable operation in demanding motor control environments.
Feature Summary
- Integrates a half-bridge gate driver topology for controlling external N-channel MOSFETs
- Supports wide input supply voltage ranges suitable for automotive power systems
- Includes built-in overcurrent protection and thermal shutdown for system safety
Applications
- Three-phase brushless DC (BLDC) motor control in automotive systems
- Gate driving for external power MOSFETs in motor driver circuits
- Automotive motion control and ignition controller subsystems
Procurement Notes
Verify the specific suffix 'A' against the manufacturer's current datasheet to confirm pinout and feature variations. Ensure the 28-TSSOP-EP package footprint matches your PCB design. Confirm that the operating voltage requirements align with your system's power rail specifications before finalizing procurement.
Selection Notes
Select this component when designing three-phase motor drives requiring integrated gate driving capabilities. It is suitable for applications needing robust protection features like overcurrent and thermal shutdown. Consider the TSSOP-EP package for its thermal performance and compact form factor in space-constrained automotive designs.
Part Context
This part belongs to Allegro MicroSystems' portfolio of motor and motion controllers. It is specifically categorized as a three-phase MOSFET driver intended for automotive-grade reliability. The device complements other gate drivers in the series by offering integrated protection and high-voltage tolerance for direct MOSFET control.
Replacement Considerations
Check for alternative parts within the same Allegro A493x series or similar three-phase gate drivers. Verify compatibility regarding package dimensions, pin configuration, and electrical ratings such as supply voltage and current handling capabilities.
