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Product Detailed Parameters
- Description：MOSFET 2N-CH 30V 40A 8LSON
- Series：NexFET™
- Mfr：Texas Instruments
- Package：Tape & Reel (TR),Cut Tape (CT)
- Technology：MOSFET (Metal Oxide)
- Configuration：2 N-Channel (Half Bridge)
- FET Feature：Logic Level Gate
- Drain to Source Voltage (Vdss)：30V
- Current - Continuous Drain (Id) @ 25°C：40A
- Rds On (Max) @ Id, Vgs：-
- Vgs(th) (Max) @ Id：2.1V @ 250µA
- Gate Charge (Qg) (Max) @ Vgs：19nC @ 4.5V
- Input Capacitance (Ciss) (Max) @ Vds：3190pF @ 15V
- Power - Max：12W
- Operating Temperature：-55°C ~ 150°C (TJ)
- Mounting Type：Surface Mount
- Package / Case：8-PowerLDFN
- Supplier Device Package：8-LSON (5x6)
- Grade：-
- Qualification：-
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Overview
The CSD87353Q5D is a dual N-channel NexFET Power Block MOSFET from Texas Instruments, designed for synchronous buck converter applications. It features a 30V drain-source breakdown voltage and supports a continuous drain current of 40A. The device operates with a gate-source voltage range of -8V to 10V and includes an integrated bootstrap diode. Key electrical parameters include a gate charge ranging from 16nC to 20nC and a threshold voltage between 750mV and 1.1V. It is housed in an LSON-Clip-8 package, rated for power dissipation up to 12W, and functions within a temperature range of -55°C to +150°C.
Feature Summary
- Dual N-channel configuration integrated into a single compact Power Block package
- Integrated bootstrap diode simplifies high-side driver requirements
- Optimized low on-resistance for improved efficiency in synchronous buck topologies
Applications
- Synchronous step-down (buck) converters
- Point-of-load (POL) voltage regulation modules
- DC-DC power conversion stages in computing equipment
Procurement Notes
Verify the specific suffix Q5D against the manufacturer's official datasheet to confirm pinout compatibility and thermal characteristics. Ensure the ordering part number matches the exact package variant required for your PCB footprint. Cross-reference the RoHS and REACH status directly with the component documentation before finalizing procurement specifications.
Selection Notes
Select this component based on its 30V rating and 40A current capability relative to the target load requirements. Evaluate the gate charge values to ensure compatibility with the driving controller's output strength. Confirm that the LSON-Clip-8 package dimensions align with the available board space and thermal management strategy.
Part Context
This component belongs to the Texas Instruments NexFET Power Block family, which combines dual MOSFETs and a bootstrap diode into one package. This integration reduces solution size and improves switching performance compared to discrete solutions. The series is specifically engineered for high-density power management applications requiring efficient synchronous rectification.
