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The information presented in this cross reference is based on TOSHIBA's selection criteria and should be treated as a suggestion only. Please carefully review the latest versions of all relevant information on the TOSHIBA products, including without limitation data sheets and validate all operating parameters of the TOSHIBA products to ensure that the suggested TOSHIBA products are truly compatible with your design and application.
Please note that this cross reference is based on TOSHIBA's estimate of compatibility with other manufacturers' products, based on other manufacturers' published data, at the time the data was collected.
TOSHIBA is not responsible for any incorrect or incomplete information. Information is subject to change at any time without notice.

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AC-DC Power Supply

Examples of AC-DC Converter Circuits Using the Flyback System

Circuit Description

フライバック方式を用いたAC-DCコンバーター回路例

Depending on the location of the IoT sensor device, the power supply may be limited. Depending on the frequency of sensing, the output of wireless communication and other specifications, battery operation may not satisfy the required operation time. In such cases, the simplest solution is to secure a commercial power supply, but you will need to prepare for AC-DC power supply. Generally speaking, external AC-DC adapters are used, and AC-DC power supply modules are purchased and incorporated into the product. However, in order to achieve a balance between performance and cost, designing the optimum power supply for each IoT-sensor device is also an issue to be considered.

MOSFET and SiC-Schottky barrier diodes that apply Toshiba's newest-generation processes are making AC-DC power supplies more efficient. The photocoupler serves to safely transmit feedback signals between the primary and secondary sides of the power supply.

Toshiba has published a switching power supply circuit library to support power supply designs represented by such AC-DC power supplies. In addition, the Reference Design Center publishes examples of the design of various types of power sources, providing design ideas for high-efficiency in various power supply circuits. Both of them can be used free of charge, so please use them as a help in designing the power supply.

Switched Mode Power Supply Library
Easily select the optimal circuit and MOSFETs. Downloads circuit data that can be used in OrCAD®, LTspice® environments.

Reference Design Center
Releasing various reference designs that can be used for end equipment.

The DTMOS series has a super junction structure capable of reducing the resistance of the drift layer, and achieve both low on-resistance and high-speed switching. The π-MOS series adopts the D-MOS (Double Diffusion MOS) structure and the design of double-diffusion structures has been optimized to achieve high efficiency, low noise, and high avalanche capability.

Product Number

Package
(Width×Length×Height mm)

Product Overview

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TK18A50D

TO-220SIS
(10.0×15.0×4.5)

N-ch, VDSS=500V, ID=18A, RDS(ON)=270mΩ (Max)(@VGS=10V)

TK12P50W

DPAK
(6.6×10.0×2.3)

N-ch,  VDSS=500V, ID=11.5A, RDS(ON)=340mΩ(Max)(@ VGS=10V)

By realizing low leakage current (Ir) and high surge current capability as well as high reverse voltage ratings and short reverse recovery time (trr), contributes to higher efficiency of switching power supplies.

Product name

Package
(Width×Length×Height mm)

Product Overview

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TRS4A65F

TO-220F-2L
(10.0×15.0×4.5)

VRRM=650V, IF(DC)=4A, IFSM=37A, IR=20μA(MAX), Cj=16pF(Typ.)(@f=1MHz)

TRS4E65F

TO-220-2L
(10.05×15.3×4.45)

VRRM=650V, IF(DC)=4A, IFSM=39A, IR=20μA(MAX), Cj=16pF(Typ.)(@f=1MHz)

Use of photocoupler is effective for isolated power supply in the feedback circuit from the secondary side output to the primary side.

Product Number

Package
(Width×Length×Height mm)

Product Overview

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TLP2719

SO6L
(3.84×10×2.1)

IC output, BVS=5kVrms, CMH/CML=±10kV/μs(Min)

Other Circuit Description

Sensor Input

Other block diagrams

AC-DC Forward Power Supply
Examples of AC-DC converter circuits using the forward method

Application / IoT Sensor

Microphone amplifier
Example of microphone circuit for voice recognition

Application / IoT Sensor

Main control section

Application / IoT Sensor

LED drive
Example of LED driving circuit for operation status display

Application / IoT Sensor

Other Technical Content

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Cleans Dirty Air by Linking "Filtration" with High-performance Filters and IoT
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Ultra-low power consumption with high precision sensing in small size
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For Long Time Operation with a Small Battery on a Wireless Earphone
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How to Increase Air Conditioning Performance without Increasing Power Consumption?
Smart Speaker Solution
Towards home network hub adding displays and cameras
Semiconductor Solutions for Servers
Contribute to Energy Saving and Stable Operation by Improving Power Supply Performance and Protective Functions
SSD Solution
Towards achievement compact size, high reliability and long life
Smartwatch Solution
To Realize More Features, Longer Operating Time and Smaller Size
Cordless Power Tool Solution
To Realize Compact, Light, Easy-to-Carry and Easy-to-Work with Long Time Operation
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