Image of ROHM Semiconductor's Basics of Thermal Resistance and Heat Dissipation and Calculation of Junction Temperature (Tj)

Basics of Thermal Resistance and Heat Dissipation and Calculation of Junction Temperature (Tj)

ROHM Semiconductor

This presentation will review the concepts of thermal resistance and heat dissipation, as well as methods to calculate junction temperature (Tj).

Voltage Regulators - DC/DC Switching Regulators

ImagemNúmero de peça do fabricanteDescriçãoAvailable QuantityPreçoVer detalhes
IC REG BUCK ADJ 3A 8HTSOP-JBD9D321EFJ-E2IC REG BUCK ADJ 3A 8HTSOP-J6081 - Immediate$0.58Ver detalhes
IC REG BUCK ADJ 3A 8HTSOP-JBD9E302EFJ-E2IC REG BUCK ADJ 3A 8HTSOP-J12033 - Immediate$0.94Ver detalhes
IC REG BUCK ADJ 500MA 6SSOPBD9G101G-TRIC REG BUCK ADJ 500MA 6SSOP89191 - Immediate$1.31Ver detalhes
IC REG BUCK ADJ 500MA 6SSOPBD9G102G-LBTRIC REG BUCK ADJ 500MA 6SSOP2654 - Immediate$1.32Ver detalhes
IC REG BUCK ADJ 500MA VCSP50L1BD70522GUL-E2IC REG BUCK ADJ 500MA VCSP50L13549 - Immediate$1.42Ver detalhes
IC REG BUCK ADJ 2.5A 8HTSOP-JBD90620EFJ-CE2IC REG BUCK ADJ 2.5A 8HTSOP-J10447 - Immediate$1.85Ver detalhes
IC REG BUCK BOOST ADJ 2A 16VQFNBD8306MUV-E2IC REG BUCK BOOST ADJ 2A 16VQFN10832 - Immediate$2.00Ver detalhes
IC REG BUCK ADJ 4A 8HTSOP-JBD90640EFJ-CE2IC REG BUCK ADJ 4A 8HTSOP-J5119 - Immediate$2.02Ver detalhes
IC REG BUCK ADJ 4A HRP7BD90640HFP-CTRIC REG BUCK ADJ 4A HRP76407 - Immediate$2.24Ver detalhes
IC REG BUCK ADJ 3A 8HTSOP-JBD9G341AEFJ-E2IC REG BUCK ADJ 3A 8HTSOP-J2911 - Immediate$3.55Ver detalhes

Motor Drivers

ImagemNúmero de peça do fabricanteDescriçãoAvailable QuantityPreçoVer detalhes
BD63510AEFV IS STEPPING MOTOR DRBD63510AEFV-E2BD63510AEFV IS STEPPING MOTOR DR6295 - Immediate$1.54Ver detalhes
IC MOTOR DRIVER 3V-5.5V 8SOPBD6211F-E2IC MOTOR DRIVER 3V-5.5V 8SOP3838 - Immediate$1.73Ver detalhes
BUILT-IN 1 CHANNEL H-BRIDGE MOTOBD62120AEFJ-E2BUILT-IN 1 CHANNEL H-BRIDGE MOTO36656 - Immediate$1.94Ver detalhes
IC MOTOR DRIVER BIPOLAR 24HTSSOPBD6380EFV-E2IC MOTOR DRIVER BIPOLAR 24HTSSOP8631 - Immediate$2.17Ver detalhes
IC MOTOR DRIVER 6V-32V 8SOPBD6231F-E2IC MOTOR DRIVER 6V-32V 8SOP29687 - Immediate$2.19Ver detalhes
IC MOTOR DRIVER 6V-32V 8SOPBD6230F-E2IC MOTOR DRIVER 6V-32V 8SOP2655 - Immediate$3.06Ver detalhes
BD63007MUV IS A THREE-PHASE BRUSBD63007MUV-E2BD63007MUV IS A THREE-PHASE BRUS5394 - Immediate$3.69Ver detalhes
IC MOTOR DRIVER 6V-32V HRP7BD6232HFP-TRIC MOTOR DRIVER 6V-32V HRP71607 - Immediate$4.85Ver detalhes
BD63910MUV IS A BIPOLAR LOW-CONSBD63910MUV-E2BD63910MUV IS A BIPOLAR LOW-CONS3036 - Immediate$1.36Ver detalhes
IC MTR DRV BIPOLR 2.7-9V 16SSOPABA6845FS-E2IC MTR DRV BIPOLR 2.7-9V 16SSOPA3215 - Immediate$1.94Ver detalhes

LED Drivers

ImagemNúmero de peça do fabricanteDescriçãoAvailable QuantityPreçoVer detalhes
IC LED DRV LIN PWM VQFN48MCV070BD2808MUV-ME2IC LED DRV LIN PWM VQFN48MCV0703005 - Immediate$4.05Ver detalhes
IC LED DRVR PS PWM HTSSOP-B16BD18347EFV-ME2IC LED DRVR PS PWM HTSSOP-B160 - Immediate$3.29Ver detalhes
IC LED DRIVER CTRLR PWM 18SOPBD9413F-GE2IC LED DRIVER CTRLR PWM 18SOP5812 - Immediate$0.94Ver detalhes
IC LED DRVR RGLTR PWM 40HTSSOPBD9397EFV-GE2IC LED DRVR RGLTR PWM 40HTSSOP3922 - Immediate$2.31Ver detalhes
IC LED DRVR CTRLR PWM 28HTSSOPBD81A44EFV-ME2IC LED DRVR CTRLR PWM 28HTSSOP10082 - Immediate$2.36Ver detalhes
IC LED DRVR CTRLR PWM 28HTSSOPBD81A24EFV-ME2IC LED DRVR CTRLR PWM 28HTSSOP4990 - Immediate$3.81Ver detalhes
IC LED DRV RGLTR PWM 8VSONBD60A60NUX-TRIC LED DRV RGLTR PWM 8VSON2522 - Immediate$0.98Ver detalhes
IC WHITE LED DVR DCDC 20HSOPBD93941FP-E2IC WHITE LED DVR DCDC 20HSOP5481 - Immediate$1.49Ver detalhes
IC LED DRIVER OFFL 400UA 8SOPBM521Q25F-GE2IC LED DRIVER OFFL 400UA 8SOP2500 - Immediate$2.35Ver detalhes
IC LED DRIVER RGLTR PWM 16SOPBD94062F-E2IC LED DRIVER RGLTR PWM 16SOP4946 - Immediate$1.57Ver detalhes

Linear Regulators

ImagemNúmero de peça do fabricanteDescriçãoAvailable QuantityPreçoVer detalhes
IC REG LINEAR POS ADJ 1A TO252-5BD00FC0WFP-E2IC REG LINEAR POS ADJ 1A TO252-512706 - Immediate$0.85Ver detalhes
IC REG LINEAR 5V 500MA TO252-3BD450M5FP-CE2IC REG LINEAR 5V 500MA TO252-32804 - Immediate$0.94Ver detalhes
IC REG LINEAR 3.3V 500MA TO252-3BD433M5FP-CE2IC REG LINEAR 3.3V 500MA TO252-33091 - Immediate$0.94Ver detalhes
IC REG LINEAR 3.3V 1A TO252BA033CC0FP-E2IC REG LINEAR 3.3V 1A TO2525244 - Immediate$1.02Ver detalhes
IC REG LINEAR 3.3V 1A TO252-3BD33C0AFP-CE2IC REG LINEAR 3.3V 1A TO252-34574 - Immediate$1.04Ver detalhes
IC REG LIN 3.3V 200MA SOT-223-4FBD433M2FP3-CE2IC REG LIN 3.3V 200MA SOT-223-4F3709 - Immediate$1.53Ver detalhes
IC REG LIN 5V 200MA SOT-223-4FBD450M2FP3-CE2IC REG LIN 5V 200MA SOT-223-4F1798 - Immediate$1.53Ver detalhes
IC REG LINEAR 5V 500MA TO252BD750L5FP-CE2IC REG LINEAR 5V 500MA TO25215466 - Immediate$1.95Ver detalhes
IC REG LINEAR 3.3V 500MA TO252BD733L5FP-CE2IC REG LINEAR 3.3V 500MA TO2524553 - Immediate$1.95Ver detalhes
IC REG LINEAR 3.3V 200MA 5-SSOPBU33TD3WG-TRIC REG LINEAR 3.3V 200MA 5-SSOP2174 - Immediate$0.33Ver detalhes
PTM Published on: 2024-02-15

Related Videos

BD18347A Constant Current LED Driver
BD18347A Constant Current LED Driver

Publish Date: 2025-09-22

BD18397 and BD18398 LED Drivers
BD18397 and BD18398 LED Drivers

Publish Date: 2025-06-17

High accuracy current monitoring contributes to improved application reliability
High accuracy current monitoring contributes to improved application reliability

Publish Date: 2023-06-22

Related Product Highlight

BD9x Switching Voltage Regulators ROHM Semiconductor's BD9x series offers a compelling solution for designers seeking high-efficiency DC-DC buck converters.
REFRPY002-ORS-001 Reference Design ROHM’s REFRPY002-ORS-001 reference design helps designers reduce their development workload and achieve the performance required by market.
BD7xxL05G-C Series Compact Primary LDOs ROHM's BD7xxL05G-C series compact primary LDOs meet basic requirements, such as compact size and qualification, under AEC-Q100 automotive reliability standards.

Related Articles and Blogs

Torne a eficiência importante com o correto regulador chaveado de tensão Saiba como o regulador chaveado de tensão correto pode proporcionar a máxima eficiência energética numa variedade de invólucros compactos.
Como implementar rapidamente conversores Buck para automação de fábrica, 5G, e o IoT Use CIs de fonte de alimentação integrados para implementar rapidamente conversores buck compactos e eficientes para automação de fábrica, 5G e o IoT.
How to Correctly Apply the Right Power Devices to Meet Industrial Power Supply Requirements By correctly applying the right power components for industrial power supplies and converters, designers can ensure the necessary performance and reliability.

Related Product Training Modules

Synchronous Buck Regulators for FPGA: Powering the Efinix Ti180 Reference Design Efinix’s Titanium Ti180 development kit is powered by ROHM’s synchronous buck regulators and other PMIC solutions for FPGAs.
Automotive LED Driver ROHM's BD18337/347 is one of the best picks for the rear lamp design providing better feature sets and cost saving.
Industrial Motor Products: Part 2 - Sensing and Voltage Converters ROHM’s low ohmic resistors are used in current detection circuits to measure linear acceleration.