Support software
LOAD-SWITCH-FET-LOSS-CALC — Power Loss Calculation Tool for Load Switch
Quickly trade off size, cost and performance to select the optimal MOSFET based on application conditions.
Data sheet
CSD19502Q5B
- 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 3.4 mΩ, 80 V, SON 5 mm × 6 mm NexFET™ power MOSFET is designed to minimize losses in power conversion applications.
Technical documentation
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View all 10 | Top documentation | Type | Title | Format options | Date |
|---|---|---|---|---|
| * | Data sheet | CSD19502Q5B 80 V N-Channel NexFET™ Power MOSFET datasheet (Rev. B) | PDF | HTML | 19 May 2017 |
| Application brief | Estimating Leakage Currents of Power MOSFETs | PDF | HTML | 31 Oct 2025 | |
| Application note | MOSFET Support and Training Tools (Rev. G) | PDF | HTML | 27 Oct 2025 | |
| Application note | Semiconductor and IC Package Thermal Metrics (Rev. D) | PDF | HTML | 25 Mar 2024 | |
| Application note | Using MOSFET Transient Thermal Impedance Curves In Your Design | PDF | HTML | 18 Dec 2023 | |
| Application note | QFN and SON PCB Attachment (Rev. C) | PDF | HTML | 06 Dec 2023 | |
| Application note | Using MOSFET Safe Operating Area Curves in Your Design | PDF | HTML | 13 Mar 2023 | |
| Application brief | Tips for Successfully Paralleling Power MOSFETs | PDF | HTML | 31 May 2022 | |
| Technical article | How to select a MOSFET - Hot Swap | PDF | HTML | 06 Apr 2018 | |
| 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
NONSYNC-BOOST-FET-LOSS-CALC — NONSYNC BOOST FET LOSS Calculator
MOSFET power loss calculator for non-synchronous boost converter
Supported products & hardware
Calculation tool
FET-SOA-CALC-SELECT — MOSFET SOA calculation and selection tool
Excel based FET SOA calculation and selection tool
Supported products & hardware
Calculation tool
MOTOR-DRIVE-FET-LOSS-CALC — Power Loss Calculation Tool for BLDC Motor Drive
This is an Excel-based MOSFET power loss calculator for brushless DC motor drive applications.
Supported products & hardware
Calculation tool
SLPR053 — Power Loss Calculation Tool for Synchronous Inverting Buck Boost Converter
MOSFET power loss calculation and selection tool for synchronous inverting buck boost converter
Supported products & hardware
Calculation tool
SYNC-BOOST-FET-LOSS-CALC — Power Loss Calculation Tool for Synchronous Boost Converter
MOSFET power loss calculator for synchronous boost converter applications.
Supported products & hardware
Calculation tool
SYNC-BUCK-FET-LOSS-CALC — Power Loss Calculation Tool for Synchronous Buck Converter
Quickly trade off size, cost and performance to select the optimal MOSFET based on application conditions.
Supported products & hardware
Calculation tool
SYNC-RECT-FET-LOSS-CALC — Power loss calculation tool for synchronous rectifier
MOSFET power loss calculator for synchronous rectifier applications
Reference designs
TIDA-010966 — Bidirectional isolated dual-bridge series resonant DC/DC converter reference design for pack balance
This reference design is a bidirectional isolated dual-bridge series resonant DC/DC converter used to achieve pack balance in a residential energy storage system. This reference design can achieve constant current mode and constant voltage mode with 95% peak efficiency. This reference design is (...)
Design guide: PDF
Reference designs
PMP41042 — 3.6kW bi-directional CLLLC resonant converter reference design
This reference design is a digital controlled 3.6kW power supply for energy storage applications with bidirectional power flow capability and soft switching. This design illustrates control of this power topology using a C2000™ microcontroller in closed voltage and closed current-loop mode. (...)
Test report: PDF
Reference designs
PMP41134 — 3.6kW bidirectional SR-DAB converter reference design for energy storage system
The series resonant dual-active-bridge (SR-DAB) DC/DC converter reference design offers advantages like soft-switching, lower circulating current and high efficiency. The design is beneficial where power density, cost, galvanic isolation, wide-gain range, and high efficiency are needed for (...)
Test report: PDF
Reference designs
PMP22087 — 336-W Auxless AC/DC power supply reference design with 80 PLUS platinum compatible performance
This reference design is an AC/DC power supply design with critical conduction mode (CRM) PFC and half-bridge LLC series resonant converter that provides 24 V, 240-W continuous, 336-W peak output from a universal input AC voltage (90 VAC to 264 VAC). This design uses UCC28056 CRM/DCM PFC (...)
Reference designs
PMP21278 — 300W 12Vout 4-Switch Buck-Boost for Industrial PC Reference Design
The PMP21278 reference design is a 300W power supply utilizing the LM5176 4-switch buck-boost controller for industrial applications. This design can operate from 9V to 50V. The design has a 12V output and capable of sourcing 25A continuous current. Switching frequency is set to 230kHz. PMP21278 (...)
Reference designs
PMP20396 — 400V Input, 50W Output Multiple-Output Bias Supply Reference Design
PMP20396 is a multiple-output isolated bias supply reference design. With 100V or above input voltage, this design can provide maximum 2W output power. With 300V or above input voltage, this design can provide maximum 50W output power. Four different outputs are provided in this design - 5V/500mA (...)
Reference designs
PMP20432 — 100V to 410V DC Input to 12V/4.5A Output Bias Supply Reference Design
PMP20432 is an isolated bias supply reference design. With 100V or above input voltage, this design can provide maximum 2W output power. With 300V or above input voltage, this design can provide maximum 52W output power with 12V regulated output voltage. Peak 91.5% efficiency is achieved in this (...)
| Package | Pins | CAD symbols, footprints & 3D models |
|---|---|---|
| VSON-CLIP (DNK) | 8 | Ultra Librarian |
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