Product details

VDS (V) 40 Configuration Single Rds(on) max at VGS=4.5 V (mOhms) 3.3 Rds(on) max at VGS=10 V (mOhms) 2.3 IDM - pulsed drain current (Max) (A) 400 QG typ (nC) 52 QGD typ (nC) 8.4 Package (mm) SON5x6 VGS (V) 20 VGSTH typ (V) 1.8 ID - silicon limited at Tc=25degC (A) 204 ID - package limited (A) 100 Logic level Yes
VDS (V) 40 Configuration Single Rds(on) max at VGS=4.5 V (mOhms) 3.3 Rds(on) max at VGS=10 V (mOhms) 2.3 IDM - pulsed drain current (Max) (A) 400 QG typ (nC) 52 QGD typ (nC) 8.4 Package (mm) SON5x6 VGS (V) 20 VGSTH typ (V) 1.8 ID - silicon limited at Tc=25degC (A) 204 ID - package limited (A) 100 Logic level Yes
  • Ultra-Low Qg and Qgd
  • Low Thermal Resistance
  • Avalanche Rated
  • Logic Level
  • Pb-Free Terminal Plating
  • RoHS Compliant
  • Halogen-Free
  • SON 5 mm × 6 mm Plastic Package
  • Ultra-Low Qg and Qgd
  • Low Thermal Resistance
  • Avalanche Rated
  • Logic Level
  • Pb-Free Terminal Plating
  • RoHS Compliant
  • Halogen-Free
  • SON 5 mm × 6 mm Plastic Package

This 40-V, 1.8-mΩ, 5 mm × 6 mm NexFET™ power MOSFET is designed to minimize losses in power conversion applications.

This 40-V, 1.8-mΩ, 5 mm × 6 mm NexFET™ power MOSFET is designed to minimize losses in power conversion applications.

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Technical documentation

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Type Title Date
* Data sheet CSD18502Q5B 40 V N-Channel NexFET™ Power MOSFET datasheet (Rev. B) 18 May 2017
Technical article Understanding the benefits of “lead-free” power MOSFETs 08 Feb 2019
Application note QFN and SON PCB Attachment (Rev. B) 24 Aug 2018
Selection guide Power Management Guide 2018 (Rev. R) 25 Jun 2018
Design guide 18-V/400-W 98% Efficient Compact Brushless DC Motor Drive Design Guide 23 Aug 2016
Technical article When to use load switches in place of discrete MOSFETs 03 Feb 2016
Technical article 48V systems: Driving power MOSFETs efficiently and robustly 08 Oct 2015
Application note Ringing Reduction Techniques for NexFET High Performance MOSFETs 16 Nov 2011

Design & development

For additional terms or required resources, click any title below to view the detail page where available.

Support software

Power Loss Calculation Tool for Load Switch

SLPC019.ZIP (338 KB)
Simulation model

CSD18502Q5B Unencrypted PSpice Model (Rev. B)

SLPM055B.ZIP (6 KB) - PSpice Model
Simulation model

CSD18502Q5B TINA-TI Spice Model

SLPM086.TSM (17 KB) - TINA-TI Spice Model
Calculation tool

MOTOR-DRIVE-FET-LOSS-CALC — MOSFET power loss calculator for motor drive applications

This is an Excel-based MOSFET power loss calculator for brushless DC motor drive applications.
Calculation tool

NONSYNC-BOOST-FET-LOSS-CALC — Power loss calculation tool for non-synchronous boost converter

MOSFET power loss calculator for non-synchronous boost converter
Calculation tool

SYNC-BOOST-FET-LOSS-CALC — Power loss calculation tool for synchronous boost converter

MOSFET power loss calculator for synchronous boost converter applications.
Calculation tool

SYNC-BUCK-FET-LOSS-CALC — MOSFET power loss calculator for synchronous buck converter applications

MOSFET power loss calculator for synchronous buck converter applications
Calculation tool

SYNC-RECT-FET-LOSS-CALC — Power loss calculation tool for synchronous rectifier

MOSFET power loss calculator for synchronous rectifier applications
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PMP8973 — 18Vdc-60Vdc Input, 3.3V/15A Active Clamp Forward, 1/8 Brick Reference Design

The PMP8973 reference design generates a 3.3V/15A output from an 18V to 60V telecom input. The UCC2897A controls an active clamp forward converter power stage. The low gate charge and low RDSon of the CSD16415Q5 and CSD18502Q5B, implemented as synchronous rectifiers, provides for a highly efficient (...)
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PMP4468 — 18V-36Vdc Input, 5V/30W Active Clamp Forward - Reference Design

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PMP4390 — Universal AC Input 15W Adapter with Energy Star 6 Efficiency Rating Reference Design

This 5V / 3A adapter solution is fully tested and passes EMI and EMC (CE,RE) safety requirements. It implements a high efficiency primary side controller UCC28713 and synchronous rectifier UCC24610 pair. The efficiency of the design complies with Energy Star 6 and is designed to fit into small form (...)
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PMP9126 — 36 to 75VDC Input 5V/15A Active Clamp Forward 1/8 Brick Form Factor Reference Design

This reference design generates a 5V/15A output from a 36V to 75V telecom input. The UCC2897A controls an active clamp forward converter power stage. The low gate charge and low RDSon of the CSD17501Q5A and CSD18502Q5B, implemented as a synchronous rectifiers, provides for a highly efficient (...)
Reference designs

PMP8790 — Active Clamp Forward Quarter Brick (18 to 60Vdc Input 3.3V/12A) Reference Design

This reference design generates a 3.3V/12A output from a wide 18V-60V telecom input. The UCC2897A controls an active clamp forward converter power stage. The low gate charge and low RDSon of the CSD17501Q5A and CSD18502Q5B, implemented as self-driven synchronous rectifiers, provide for an (...)
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