Cordless Power Tool Solution
Various types of power tools are marketed for a wide range of applications from household to professional use. Recently, the adoption of high-capacity lithium-ion batteries leads to a shift to cordless types that are compact, light, easy-to-carry and easy-to-work with not only for household use but also for professional use such as hammer drills, impact wrenches, nailers, staplers, and round saws. The cability of cordless power tools to run longer time operation with a single charge is one of the major qualities for users when choosing the goods. Toshiba's lineup of MOSFET, motor control drivers, photocouplers, and other products that use the newest technologies helps you make efficient use of limited battery capacities.
Features
- Low on-resistance products for motor drive improve power utilization efficiency and minimizes heat generation
- Compatibility between board size and heat dissipation performance by a surface mount package with excellent heat dissipation
- Optical coupling improves operation reliability by isolating feedback signal circuits
- Compliance with new safety standards (IEC-62368-1, etc.) (eFuse IC, photocoupler)
- Useful application notes, reference designs, and other documents on the web save design cycle time
Three-phase Brushless Motor Drive
Three-phase brushless motor drive circuits with inverter control can be easily realized by using the motor driver TC78B016FTG. In addition, the large-capacity brushless motor drive can be achieved by using TB6634FNG which is an external three-phase brushless motor driver. For TB6634FNG, we recommend a MOSFET, which are TPWR8004PL and TPHR8504PL, with low on-resistance and high heat dissipation efficiency. Combined with TB6634FNG offers a low-heat, low-power solution. In addition, each product is provided in a small molded package, enabling a reduction in the mounting area.
By using an ultra-low-noise op-amp TC75S67TU, you can detect equipment errors and protect the battery by combining the current monitoring circuit of the system power supply and the temperature sensor. In addition, the use of the LDO regulator: TAR5SB series for the system power supply enables the reduction of noise coming from motor drive and enable a highly noise-resistant power supply circuit that is indispensable for stable system operation.
Recommended product for Three-phase Brushless Motor Drive
The set with low heat generation and low power consumption can be realized by using MOSFET with high dissipation efficiency and low on-resistance as a driver.
Product name |
Package (Width×Length×Height mm) |
Product Overview |
Checking On-line distributor inventory |
|---|---|---|---|
DSOP Advance
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N-ch, VDSS=40V, ID=340A, RDS(ON)=0.8mΩ (Max)(@VGS=10V) |
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SOP Advance
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N-ch, VDSS=40V, ID=340A, RDS(ON)=0.85mΩ (Max)(@VGS=10V) |
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By using motor driver, one can easily drive a three-phase brushless motor using inverter control which is increasingly popular in recent years.
System can drive high capacity brushless motor by using motor controller with external MOSFET.
Product name |
Package (Width×Length×Height mm) |
Product Overview |
Checking On-line distributor inventory |
|---|---|---|---|
P-WQFN36-0505-0.50-001 |
3-Phase Brushless Motor control driver (w/MOSFET), VMopr=6 to 22V, IOUT(peak)=3A, VO=25V |
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SSOP30-P-300-0.65 |
3-phase brushless motor controller, VCC=6 to 16.5V, IOUT(peak)=2mA, VO=18V |
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Stable system is realized by using operational amplifier resistant to noise from the motor drive section.
It becomes possible to reduce the noise to the power supply line by using LDO resistant to noise from the motor drive section.
Product name |
Package (Width×Length×Height mm) |
Product Overview |
Checking On-line distributor inventory |
|---|---|---|---|
SOT-25 (SMV)
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VIN=15V(Max), VOUT=5.0V(Typ.), IOUT=200mA(Max), VNO=30μVrms(Typ.) |
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SOT-25 (SMV)
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VIN=15V(Max), VOUT=3.3V(Typ.), IOUT=200mA(Max), VNO=30μVrms(Typ.) |
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Brush Motor Drive
Bipolar transistors (NPN/PNP):TMBT3906, 2SC4116 can configure MOSFET drivers for brush-motor drive. By using low on-resistance and high heat dissipation efficiency products for driver MOSFET, low heat generation and low power dissipation can be realized, while high voltage resistance characteristics are also required considering back electromotive force in the motor, etc., so select a product with the optimum rating according to the required specifications of the application such as TPWR8004PL,TPHR8504PL.
Recommended product for Brush Motor Drive
MOSFET driver can be configured using bipolar transistors (NPN/PNP).
Product name |
Package (Width×Length×Height mm) |
Overview |
Checking On-line distributor inventory |
|---|---|---|---|
SOT-23 (SOT23)
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PNP, IC=-0.2A(Max), VCEO=-50V(Min), VCE(sat)=-0.25V(Max), hFE=300(Max) |
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SOT-323 (USM)
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NPN, IC=0.15A(Max), VCEO=50V(Min), VCE(sat)=0.25V(Max), hFE=700(Max) |
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The set with low heat generation and low power consumption can be realized by using MOSFET with high dissipation efficiency and low on-resistance as a driver.
Product name |
Package (Width×Length×Height mm) |
Overview |
Checking On-line distributor inventory |
|---|---|---|---|
DSOP Advance
|
N-ch, VDSS=40V, ID=340A, RDS(ON)=0.8mΩ (Max)(@VGS=10V) |
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SOP Advance
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N-ch, VDSS=40V, ID=340A, RDS(ON)=0.85mΩ (Max)(@VGS=10V) |
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Power Supply for Battery Charging
Since high withstand voltage and low on-resistance performance are required for MOSFET used in PFC circuits of AC-DC power supplies, select products with the optimum rating according to the required specifications of the application such as TK17A80W.
eFuse IC is a type of electronic fuse that can be used repeatedly by applying electronic circuitry. Use of TCKE805 on the battery power line protects the system in unexpected power fault conditions.
By using a photocoupler such as a TLP385 for the voltage feedback circuit, the feedback signal can be transmitted while electrically isolating the primary and secondary sides by optical coupling, thus improving the operational reliability of the system.
In addition, it is essential to observe the safety standards established in each country. Toshiba Photocouplers have been approved by UL1577VDE:EN60747-5-5, EN62368-1 and other organizations.
Recommended product for Power Supply for Battery Charging
MOSFET with high VDSS and low on-resistance is suitable for the PFC circuit of the AC-DC power supply. 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.
Various protection features, such as high-speed short circuit protection, overcurrent clamp (OCC), overvoltage clamp (OVC), thermal shut down (TSD) and inrush current suppression are built in one package.
Use of photocoupler is effective for the feedback circuit from the secondary side output to the primary side in the AC-DC power supply. Its broad product lineup contributes to the improvement in the safety of set, low power consumption, and small size.
Other block diagrams
Other Technical Content
