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Product Detailed Parameters
- Description：IC GATE DRVR HI/LOW SIDE 28QFN
- Series：-
- Mfr：Allegro MicroSystems
- Package：Tape & Reel (TR),Cut Tape (CT)
- Driven Configuration：High-Side or Low-Side
- Channel Type：3-Phase
- Number of Drivers：6
- Gate Type：MOSFET (N-Channel)
- Voltage - Supply：5.5V ~ 50V
- Logic Voltage - VIL, VIH：0.8V, 1.5V
- Current - Peak Output (Source, Sink)：-
- Input Type：TTL
- Rise / Fall Time (Typ)：35ns, 20ns
- Operating Temperature：-40°C ~ 105°C (TA)
- Mounting Type：Surface Mount
- Package / Case：28-VFQFN Exposed Pad
- Supplier Device Package：28-QFN (5x5)
- Grade：-
- Qualification：-
- High Side Voltage - Max (Bootstrap)：-
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Overview
The A4919GETTR-3-T is a three-phase controller designed for N-channel external power MOSFETs, manufactured by Allegro MicroSystems. It integrates a unique charge pump regulator to provide full gate drive capability across the entire power supply voltage range. The device operates with a supply voltage between 5.5V and 50V and supports TTL logic inputs with specified thresholds of 0.8V (VIL) and 1.5V (VIH). Packaged in a 28-QFN (5x5mm) surface-mount enclosure, it features six drivers configured for high-side and low-side applications. Typical rise and fall times are 35ns and 20ns respectively, ensuring efficient switching performance.
Feature Summary
- Integrates a unique charge pump regulator for full gate drive at all power supply voltages
- Designed specifically for control of N-channel external power MOSFETs
- Supports direct TTL logic input compatibility
Applications
- Brushless DC (BLDC) motor drives
- Three-phase inverter systems
- Industrial motor control applications
Procurement Notes
Verify the specific suffix '3-T' against official Allegro MicroSystems documentation to confirm exact packaging and reel specifications. Ensure the procurement channel provides valid traceability for this integrated circuit. Cross-reference the 28-QFN package dimensions with mechanical constraints before finalizing orders.
Selection Notes
Select this component when a dedicated three-phase controller with an integrated charge pump is required for N-channel MOSFETs. It is suitable for designs needing operation up to 50V supply voltage. Consider the 28-QFN footprint for space-constrained PCB layouts requiring surface-mount assembly.
Part Context
This part belongs to the A4919 series from Allegro MicroSystems, categorized under Power Management ICs and Gate Drivers. It serves as a core control element in motor drive architectures, replacing discrete driver solutions by integrating necessary regulation and logic interfaces into a single compact package.
Replacement Considerations
Consult official Allegro MicroSystems substitution guides for verified alternatives. Generic cross-references may not match the integrated charge pump characteristics or specific pinout configurations.
