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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-Z is a high-frequency half-bridge gate driver manufactured by Monolithic Power Systems. It operates within a supply voltage range of 9 V to 18 V and delivers a peak output current of 2.5 A. The device features non-inverting configuration with rise and fall times of 12 ns and 9 ns, respectively. Designed for surface mount installation in a QFN-8 package, it supports an operating temperature range starting from -40°C.
Feature Summary
- High-speed switching capability with low propagation delay for efficient power stage control
- Robust drive strength suitable for driving power MOSFETs or IGBTs in demanding environments
- Compact footprint design facilitating dense PCB layout in space-constrained applications
Applications
- Motor drive systems requiring precise half-bridge control
- High-frequency DC-DC converter topologies
- Inverter circuits for industrial automation equipment
Procurement Notes
Verify the specific suffix 'HQ' against the manufacturer's latest datasheet to confirm pinout compatibility and thermal characteristics. Ensure the QFN-8 package variant matches your PCB footprint requirements. Confirm RoHS compliance status directly with the supplier documentation before finalizing procurement decisions.
Selection Notes
Select this component when a compact half-bridge driver with fast switching speeds is required. The 2.5 A output current is sufficient for moderate-power applications. Consider the QFN-8 package for thermal management needs and board space optimization compared to larger SOIC packages.
Part Context
This part belongs to the MP1921 series of half-bridge drivers from Monolithic Power Systems. It shares functional similarities with other variants like the MP1921HS but differs in packaging and potentially thermal performance specifications. The series targets general-purpose high-frequency power switching applications.
Replacement Considerations
The MP1921HS-A-LF-Z is a documented alternative offering identical electrical performance in an SOIC-8 package. Verify that the change in physical footprint does not impact existing PCB layouts or thermal dissipation strategies.
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