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MP1921HQ-A-LF-P
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Product Detailed Parameters
- Description：IC GATE DRVR HALF-BRIDGE 8QFN
- Series：-
- Mfr：Monolithic Power Systems Inc.
- Package：Tape & Reel (TR)
- Driven Configuration：Half-Bridge
- Channel Type：Independent
- Number of Drivers：2
- Gate Type：MOSFET (N-Channel)
- Voltage - Supply：9V ~ 18V
- Logic Voltage - VIL, VIH：1V, 2.4V
- Current - Peak Output (Source, Sink)：2.5A, 2.5A
- Input Type：Non-Inverting
- Rise / Fall Time (Typ)：12ns, 9ns
- Operating Temperature：-40°C ~ 125°C (TJ)
- Mounting Type：Surface Mount
- Package / Case：8-VDFN Exposed Pad
- Supplier Device Package：8-QFN (3x3)
- Grade：-
- Qualification：-
- High Side Voltage - Max (Bootstrap)：120 V
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Overview
The MP1921HQ-A-LF-P is a high-frequency, 100V half-bridge gate driver designed for N-channel power MOSFETs. It features independent low-side and high-side channels with non-inverting inputs. The device operates on a supply voltage range of 9V to 18V, delivering a peak output current of 2.5A. Typical propagation delay is 16ns, with rise and fall times of 12ns and 9ns respectively. It functions within a junction temperature range of -40°C to +125°C and is available in an SOIC-8 surface-mount package.
Feature Summary
- High-frequency operation capability for efficient switching applications
- Independent control of low-side and high-side driver channels
- Robust 100V blocking voltage rating for high-side drive
- Non-inverting input logic compatibility
Applications
- Half-bridge power converter topologies
- N-channel MOSFET gate driving in motor drives
- High-frequency DC-DC conversion stages
Procurement Notes
Verify the specific suffix 'HQ' against the manufacturer's official datasheet to confirm pinout and electrical characteristics match your design requirements. Ensure the 'LF' designation aligns with RoHS compliance standards required by your assembly process. Cross-reference the SOIC-8 package dimensions with your PCB footprint library to prevent mechanical interference during placement.
Selection Notes
Select this component when a dedicated half-bridge driver with 100V isolation is required for N-channel MOSFETs. Consider the 2.5A peak current capability for driving moderate gate charges at high frequencies. Evaluate the 16ns propagation delay against system timing constraints. Confirm that the 9V to 18V supply range matches your available control voltage rails.
Part Context
This part belongs to the MP1921 family of half-bridge gate drivers from Monolithic Power Systems. It serves as a specialized interface between low-voltage control logic and high-voltage power switches. The series is engineered for applications requiring reliable switching performance and compact integration in power management circuits.
Replacement Considerations
Publicly confirmed substitute part numbers are not available in the provided documentation. Verify compatibility with alternative drivers based on matching voltage ratings, current capabilities, and package footprints before substitution.
