Warm Water Bidet

Warm Water Bidet

Such as high efficiency, low power consumption and miniaturization are important in designing warm water bidet. Toshiba provides information on a wide range of semiconductor products suitable for power supply unit, 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.

 12 V: Motor, Pump, Fan 12 V: Motor, Pump, Fan Up to 5 V: MCU, Sensor, LED, etc. Up to 5 V: MCU, Sensor, LED, etc. AC AC Open / Close Sensor Open / CloseSensor Remote Control Receiver Remote ControlReceiver Flash Flash AC-DC Converter AC-DCConverter DC-DC Converter DC-DCConverter Beep / Indicator Beep/ Indicator Heater Toilet Seat HeaterToilet Seat Water Tap Valve Water TapValve Heater Warm Water HeaterWarm Water Seating Sensor SeatingSensor 12 V 12 V MOSFET / Motor Driver MOSFET/ Motor Driver Shower Pump Shower Pump Nozzle Movement NozzleMovement MOSFET / Motor Driver MOSFET/ Motor Driver Deodorizing Fan Deodorizing Fan Lid and Seat Open/Close Motor Lid and SeatOpen/Close Motor Drying Air Fan Drying Air Fan Transistor Array Transistor Array MOSFET / Motor Driver MOSFET/ Motor Driver MCU MCU Isolation Isolation Isolation Isolation Isolation Isolation Flyback type AC-DC converter circuit Heater / Water tap control circuit LED drive circuit Nozzle motor drive circuit Lid and seat open/close brushed DC motor drive circuit Fan motor drive circuit
Fan motor drive circuit

Example of fan motor drive circuit using MOSFET

Example of fan motor drive circuit using motor driver

LED drive circuit

Example of LED drive circuit using MCU and MOSFET

Heater/Water tap control circuit

Example of heater/water tap control circuit using triac output photocoupler

Lid and seat open/close brushed DC motor drive circuit

Example of brushed DC motor drive circuit using H-bridge

Example of brushed DC motor drive circuit using motor driver with built-in H-bridge

Flyback type AC-DC converter circuit

Example of a flyback type AC-DC converter circuit with feedback using a photocoupler

Nozzle motor drive circuit

Example of nozzle motor drive circuit using transistor array

Sub block diagram

Fan motor drive circuit
Fan motor drive circuit

Example of fan motor drive circuit using MOSFET

Example of fan motor drive circuit using MOSFET
U-MOS series MOSFET contributes to energy saving and miniaturization by improving the trade-off characteristics between on-resistance and capacitance.
Part Number
SSM3K56MFV
SSM6N56FE
Toshiba Package Name SOT-723 (VESM) SOT-563 (ES6)
VDSS (Max) [V] 20 20
ID (Max) [A] 0.8 0.8
RDS(ON) (Max) [Ω] @ |VGS| = 4.5 [V] 0.235 0.235
Polarity N-ch N-ch×2
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CMOS single operational amplifier with a built-in phase compensator, low voltage drive and low current consumption.
Part Number
TC75S51FU
TC75S103F
Toshiba Package Name SOT-353 (USV) SOT-25 (SMV)
VCC (Max) [V] 7 5.5
VCC, VEE (Max) [V] +/-3.5 +/-2.75
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These MCUs include AD converters, timers and high speed oscillator (oscillation accuracy: ±1%). These can control the system with low power consumption.
Series TXZ+TM 3A Series
Group M3H Group
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Fan motor drive circuit (with motor driver)

Example of fan motor drive circuit using motor driver

Example of fan motor drive circuit using motor driver
This driver realizes simple, low noise and low vibration fan motor drive.
Part Number
TC78B002FNG
TC78B002FTG
Toshiba Package Name SSOP16-P-225-0.65B P-WQFN16-0303-0.50-002
VOUT (Max) [V] 18 18
IOUT (Max) [A] 1.5 1.5
VM [V] 5.5 to 16 5.5 to 16
RON (Typ.) [Ω] 1.6 1.6
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Toshiba's proprietary technology eliminates the need for phase adjustment and achieves high efficiency for a wide range of rotation speeds.
Part Number
TC78B016FTG
Toshiba Package Name P-WQFN36-0505-0.50-001
VOUT (Max) [V] 40
IOUT (Max) [A] 3
VM [V] 6 to 30
RON (Typ.) [Ω] 0.24
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These MCUs include AD converters, timers and high speed oscillator (oscillation accuracy: ±1%). These can control the system with low power consumption.
Series TXZ+TM 3A Series
Group M3H Group
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LED drive circuit
LED drive circuit

Example of LED drive circuit using MCU and MOSFET

Example of LED drive circuit using MCU and MOSFET
U-MOS series MOSFET contributes to energy saving and miniaturization by improving the trade-off characteristics between on-resistance and capacitance.
Part Number
SSM3K56MFV
SSM6N56FE
Toshiba Package Name SOT-723 (VESM) SOT-563 (ES6)
VDSS (Max) [V] 20 20
ID (Max) [A] 0.8 0.8
RDS(ON) (Max) [Ω] @ |VGS| = 4.5 [V] 0.235 0.235
Polarity N-ch N-ch×2
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Wide range of products are provided, mainly small surface mount package that is suitable for high density assembly.
Part Number
CMG06A
Toshiba Package Name M-FLAT
VRRM (Max) [V] 600
IF(AV) (Max) [A] 1
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These MCUs include AD converters, timers and high speed oscillator (oscillation accuracy: ±1%). These can control the system with low power consumption.
Series TXZ+TM 3A Series
Group M3H Group
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Heater/Water tap control circuit
Heater/Water tap control circuit

Example of heater/water tap control circuit using triac output photocoupler

Example of heater/water tap control circuit using triac output photocoupler
The photocoupler consists of a non zero cross type phototriac, optically coupled to an infrared light emitting diode.
Part Number
TLP267J
TLP265J
Toshiba Package Name 4pin SO6 4pin SO6
BVS (Min) [Vrms] @ t = 60 [s] 3750 3750
Topr [°C] -40 to 100 -40 to 100
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These MCUs include AD converters, timers and high speed oscillator (oscillation accuracy: ±1%). These can control the system with low power consumption.
Series TXZ+TM 3A Series
Group M3H Group
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Lid and seat open/close brushed DC motor drive circuit
Lid and seat open/close brushed DC motor drive circuit (with MOSFET)

Example of brushed DC motor drive circuit using H-bridge

Example of brushed DC motor drive circuit using H-bridge
Low on-resistance products are available in the lineup. Improvement of trade-off characteristics between on-resistance and capacitance contributes to energy saving.
Part Number
TPH2R903PL
TPH3R003PL
TPH4R803PL
TPN2R903PL
TPN5R203PL
Toshiba Package Name SOP Advance SOP Advance SOP Advance TSON Advance TSON Advance
VDSS (Max) [V] 30 30 30 30 30
ID (Max) [A] 124 134 90 122 76
RDS(ON) (Max) [Ω] @ |VGS| = 10.0 [V] 0.0029 0.003 0.0048 0.0029 0.0052
Polarity N-ch N-ch N-ch N-ch N-ch
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Low on-resistance products are available in the lineup. Improvement of trade-off characteristics between on-resistance and capacitance contributes to energy saving.
Part Number
TPCA8120
Toshiba Package Name SOP Advance
VDSS (Max) [V] -30
ID (Max) [A] -45
RDS(ON) (Max) [Ω] @ |VGS| = 10.0 [V] 0.003
Polarity P-ch
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A gate driver with half bridge output, which can drive the motor with a high current (±500 mA maximum).
Part Number
TPD7211F
Toshiba Package name PS-8
VBB (Max) [V]  
VCC (Max) [V]  
IO (Max) [A]  
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Lid and seat open/close brushed DC motor drive circuit (with motor driver)

Example of brushed DC motor drive circuit using motor driver with built-in H-bridge

Example of brushed DC motor drive circuit using motor driver with built-in H-bridge
High voltage, high current and low power consumption with BiCD process. Simple single channel version.
Part Number
TB67H450AFTG
TB67H450AFNG
TB67H451AFNG
Toshiba Package Name P-VQFN16-0303-0.50-001 P-HSOP8-0405-1.27-002 P-HSOP8-0405-1.27-002
VOUT (Max) [V] 50 50 50
IOUT (Max) [A] 3.5 3.5 3.5
VM [V] 4.5 to 44 4.5 to 44 4.5 to 44
RON(Normal) (Typ.) [Ω] 0.6 0.6 0.6
RON(Large) (Typ.) [Ω]      
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High voltage, high current and low power consumption characteristics are realized by BiCD process. These 2-channel versions can also drive stepping motors.
Part Number
TB67H400AFNG
TB67H400AFTG
TB67H400AHG
TB67H400ANG
TB67H410FTG
TB67H410NG
Toshiba Package Name HTSSOP48-P-300-0.50 P-WQFN48-0707-0.50-003 HZIP25-P-1.00F P-SDIP24-0723-1.78-001 P-WQFN48-0707-0.50-003 P-SDIP24-0723-1.78-001
VOUT (Max) [V] 50 50 50 50 50 50
IOUT (Max) [A]       4   2.5
VM [V] 10 to 47 10 to 47 10 to 47 10 to 47 10 to 47 10 to 47
RON(Normal) (Typ.) [Ω] 0.49 0.49 0.49 0.49 0.8 0.8
RON(Large) (Typ.) [Ω] 0.245 0.245 0.245 0.245 0.4 0.4
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These MCUs include AD converters, timers and high speed oscillator (oscillation accuracy: ±1%). These can control the system with low power consumption.
Series TXZ+TM 3A Series
Group M3H Group
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Flyback type AC-DC converter circuit
Flyback type AC-DC converter circuit

Example of a flyback type AC-DC converter circuit with feedback using a photocoupler

Example of a flyback type AC-DC converter circuit with feedback using a photocoupler
High current transfer ratio (CTR) is realized even in the low input current range (IF = 0.5 mA).
Part Number
TLP383
Toshiba Package Name 4pin SO6L
BVS (Min) [Vrms] @ t = 60 [s] 5000
VCEO (Max) [V] 80
Topr [°C] -55 to 125
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Nozzle motor drive circuit
Nozzle motor drive circuit (with transistor array)

Example of nozzle motor drive circuit using transistor array

Example of nozzle motor drive circuit using transistor array
These MCUs include AD converters, timers and high speed oscillator (oscillation accuracy: ±1%). These can control the system with low power consumption.
Series TXZ+TM 3A Series
Group M3H Group
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DMOS FET is used for the output of drive circuit and realizes low loss. And CMOS input can control directly from controller's I/O, etc.
Part Number
TBD62003AFWG
TBD62083AFG
TBD62064AFAG
Toshiba Package Name SOL16 SOP18-P-375-1.27 P-SSOP24-0613-1.00-001
Number of Circuits 7 8 4
IOUT (Max) [mA/ch] 500 500 1500
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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_Warm water bidet / English (PDF:1.3MB)
SolutionProposal_Warm water bidet / Japanese (PDF:1.6MB)

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 Simulator

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

Online 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

Contacts

Technical inquiry

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Frequently Asked Questions

FAQs
  • Arm and Cortex are registered trademarks of Arm Limited (or its subsidiaries) in the US and/or elsewhere.
  • M-FLATTM and TXZ+TM are trademarks of Toshiba Electronic Devices & Storage Corporation.
  • Other company names, product names, and service names may be trademarks of their respective companies.
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