Electric Shaver

Electric Shaver

Such as low power consumption and miniaturization are important in designing electric shaver. Toshiba provides information on a wide range of semiconductor products suitable for power supply units, surge voltage protection units, motor driving units, etc., along with circuit configuration examples.

Overall block diagram

Click the area you want to check the details in the overall block diagram. Show links to our proposed sub-block diagram.

 + + Battery indicator Batteryindicator M M MOS FET MOS FET Main body Main body Battery　 Battery　 - - Gate Driver Gate Driver Mechanical Switch MechanicalSwitch LDO LDO Battery Management Battery Management LDO LDO + + - - Adapter or Cradle Adapter orCradle MCU MCU 1234567890 1234567890 SBD SBD eFuse IC / Gate Driver IC & N-ch MOSFET eFuse IC / Gate Driver IC & N-ch MOSFET TVS TVS Cradle Cradle LDO LDO Heater Heater Thermocouple Thermocouple MCU MCU Water Level Sensor Water Level Sensor + + - - Adapter Adapter Main body Main body + + - - M M Mechanical Switch MechanicalSwitch Motor protection Motor control Surge voltage protection Constant voltage supply circuit Control MCU power supply
Surge voltage protection

Example of surge voltage protection circuit for power supply line

Control MCU power supply

Example of power supply circuit of MCU

Constant voltage supply circuit

Example of power supply circuit for indicator LED

Motor control

Example of motor drive circuit

Motor protection

Example of Regenerative Current Protection Circuit from Motor Coil

Sub block diagram

Surge voltage protection
Surge voltage protection

Example of surge voltage protection circuit for power supply line

Example of surge voltage protection circuit for power supply line
TVS diode
Part Number
DF2B7BSL
DF2B20M4SL
DF2B5PCT
DF2B7PCT
DF2S14P2CTC
DF2B7AFU
Toshiba Package Name SOD-962 (SL2) SOD-962 (SL2) SOD-882 (CST2) SOD-882 (CST2) SOD-963 (CST2C) SOD-323 (USC)
VESD (Max) [kV] +/-30 +/-15 +/-30 +/-30 +/-30 +/-30
IR (Max) [µA] 0.1 0.1 0.1 0.1 0.1 0.1
Rdyn (Typ.) [Ω] 0.2 0.2 0.1 0.1 0.08 0.2
CT (Typ.) [pF] @ VR = 0 [V], f = 1 [MHz] 12 0.2 41 45 270 8.5
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Electronic fuse (eFuse IC)(1)
Part Number
TCKE800NA
TCKE805NA
TCKE812NA
Toshiba Package Name WSON10B WSON10B WSON10B
VIN (Max) [V] 18 18 18
RON (Typ.) [mΩ] 28 28 28
VOVC (Typ.) [V]   6.04 15.1
Recovery Operation Type Auto-retry Auto-retry Auto-retry
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Electronic fuse (eFuse IC)(2)
Part Number
TCKE800NL
TCKE805NL
TCKE812NL
TCKE712BNL
Toshiba Package Name WSON10B WSON10B WSON10B WSON10
VIN (Max) [V] 18 18 18 13.2
RON (Typ.) [mΩ] 28 28 28 53
VOVC (Typ.) [V]   6.04 15.1  
Recovery Operation Type Latch Latch Latch Latch
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N-ch MOSFET gate driver IC(1)
Part Number
TCK401G
TCK402G
TCK420G
TCK421G
TCK422G
Toshiba Package Name WCSP6E WCSP6E WCSP6G WCSP6G WCSP6G
VOVL_FA (Typ.) [V]     27.56 23.14 14.17
VOVL_RI (Typ.) [V]     27.73 23.26 14.29
VGS (Typ.) [V] 8.5 8.5 10 10 10
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N-ch MOSFET gate driver IC(2)
Part Number
TCK423G
TCK424G
TCK425G
Toshiba Package Name WCSP6G WCSP6G WCSP6G
VOVL_FA (Typ.) [V] 14.17 10.71 6.19
VOVL_RI (Typ.) [V] 14.29 10.83 6.31
VGS (Typ.) [V] 5.6 5.6 5.6
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Control MCU power supply
Control MCU power supply

Example of power supply circuit of MCU

Example of power supply circuit of MCU
Small surface mount LDO regulator(1)
Part Number
TCR15AG Series
TCR13AG Series
TCR8BM Series
TCR5BM Series
Toshiba Package Name WCSP6F WCSP6F DFN5B DFN5B
IOUT (Max) [mA] 1500 1300 800 500
VOUT [V] 0.6 to 3.6 0.55 to 3.6 0.8 to 3.6 0.8 to 3.6
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Small surface mount LDO regulator(2)
Part Number
TCR5RG Series
TCR3RM Series
TCR3U Series
TCR2L Series
TAR5 Series
Toshiba Package Name WCSP4F DFN4F WCSP4F SOT-553 (ESV) SOT-25 (SMV)
IOUT (Max) [mA] 500 300 300 200 200
VOUT [V] 0.9 to 5.0 0.9 to 4.5 0.8 to 5.0 0.8 to 3.6 1.5 to 5.0
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Constant voltage supply circuit
Constant voltage supply circuit

Example of power supply circuit for indicator LED

Example of power supply circuit for indicator LED
Small surface mount LDO regulator(1)
Part Number
TCR15AG Series
TCR13AG Series
TCR8BM Series
TCR5BM Series
Toshiba Package Name WCSP6F WCSP6F DFN5B DFN5B
IOUT (Max) [mA] 1500 1300 800 500
VOUT [V] 0.6 to 3.6 0.55 to 3.6 0.8 to 3.6 0.8 to 3.6
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Small surface mount LDO regulator(2)
Part Number
TCR5RG Series
TCR3RM Series
TCR3U Series
TCR2L Series
TAR5 Series
Toshiba Package Name WCSP4F DFN4F WCSP4F SOT-553 (ESV) SOT-25 (SMV)
IOUT (Max) [mA] 500 300 300 200 200
VOUT [V] 0.9 to 5.0 0.9 to 4.5 0.8 to 5.0 0.8 to 3.6 1.5 to 5.0
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Motor control
Motor control

Example of motor drive circuit

Example of motor drive circuit
Small-signal MOSFET
Part Number
SSM6K403TU
SSM3K35AMFV
Toshiba Package Name SOT-363F (UF6) SOT-723 (VESM)
VDSS (Max) [V] 20 20
ID (Max) [A] 4.2 0.25
RDS(ON) (Max) [Ω] @ |VGS| = 2.5 [V] 0.032 1.6
Polarity N-ch N-ch
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Motor protection
Motor protection

Example of Regenerative Current Protection Circuit from Motor Coil

Example of Regenerative Current Protection Circuit from Motor Coil
Schottky barrier diode
Part Number
CUS357
Toshiba Package Name SOD-323 (USC)
VRRM (Max) [V]  
VR (Max) [V] 40
CT (Typ.) [pF] 11
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Solution Proposal

These documents explain the key points of recommended semiconductor products and their features. Please use them for product selection.

Solution Proposal
SolutionProposal_Electric Shaver / English (PDF:1.3MB)
SolutionProposal_Electric Shaver / Japanese (PDF:2.0MB)

Reference Design

Power supply circuit example of LDO regulator TCR3UG series application for power supply of IoT devices.
LDO Regulator TCR3UG Series Application for Power Supply of IoT Devices
This reference design provides document with low consumption current, PSRR, and dynamic response.The LDO has small package, low consumed power, and fast load transient response.
Details
Power supply circuit example of LDO regulator TCR15AG (fixed output voltage type) application & circuit.
LDO Regulator TCR15AG (fixed output voltage type) Application & Circuit
This reference design provides document with PSRR, dynamic response and controlling output voltage.The LDO has very small package and fixed output voltage for consumer application.
Details
Power supply circuit example of LDO regulator TCR15AGADJ application & circuit.
LDO Regulator TCR15AGADJ Application & Circuit
This reference design provides document with PSRR, dynamic response and controlling output voltage. The LDO has very small package and adjustable output for consumer application.
Details

Documents

Please see the following pages for other documents.

Video

Design & Development

Switched Mode Power Supply Library

you can select and download various basic topologies of a power supply unit based on your actual requirements in order to verify the behavior of MOSFETs with your simulation environment.

Switched Mode Power Supply Library
Motor Control and Driver Circuit Library

you can select and download various basic topologies of motor driver such as three-phase inverter circuit based on your actual requirements in order to verify the behavior of MOSFETs and another devices for your simulation environment.

Motor Control and Driver Circuit Library
Online Circuit Simulator

This service allows users to easily perform pre-verification of MOSFETs without the need to build a simulation environment.

Online Circuit Simulator
EDA/CAD Model Library

We provide simulation data, 3D models of packages, and land pattern models (2D models) used when developing product boards.

EDA/CAD Model Library
MCU Motor Studio

MCU Motor Studio features a PC Tool and motor control firmware dedicated to the TXZ+TM Family Advanced Class microcontrollers from Toshiba.

MCU Motor Studio
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