Smart toilets continue to be a rapidly emerging market with market share increasing worldwide. Renesas’ system design demonstrates a high-end product with features that include seat cooling, seat heating, water heating, and dry heating system and a sterilization function with all controls accessible via a remote.
The RX113 is a 32-bit microcontroller (MCU) single-chip solution for bidirectional human-machine interface (HMI) and various peripheral devices. The RL78/G12 is ideal for sub-microcontrollers like remote controllers with compact, low power and high function general purpose. This design also features DC/DC and LDO power for the MCU, motor, and other peripheral modules. The TRIAC is used for the heating function. Lastly, the humidity and temperature sensor provides leading accuracy and excellent stability, and the photocoupler provides high performance in an ultra-small package.
Features
- Single-chip MCU, reduced BOM cost, and PCB size
- Low-end MCU for remote design, widely used in various home appliances
- High-performance DC/DC, LDO, photocoupler, and temperature/humidity sensor for an integrated solution
- RX113 MCUs (R5F5113xADxx)
- 32 MHz, 32-bit MCU
- Up to 512 Kbytes of Flash memory
- USB 2.0
- 12 comm channels
- Serial sound interface
- LCD controller/driver
- Capacitive touch sensing unit
- 12-bit A/D
- 12-bit D/A
- RTC
- RL78/G12 MCUs (R5F10Rxx)
- 24 MHz, 16-bit MCU
- Compact
- Low-power
- General purpose
- ISL80410 LDOs
- 6 V to 49 V; provide wide range for input voltage
- Adjustable output voltage: 2.5 V to 12 V
- Ensured 150 mA output current
- ISL85003 buck regulators
- Input voltage range 4.5 V to 18 V
- Output voltage adjustable from 0.8 V ±1%
- Efficiency up to 95%
- 3 A synchronous buck regulator
- BCR16FM TRIACs
- IT(RMS) 16 A
- VDRM 600 V, medium power TRIACs
- PS2911-1 photocouplers
- Flat-lead photocoupler
- Low input current
- Insulation thickness: 0.4 mm, single TR (DC input)
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Smart toilets continue to be a rapidly emerging market with market share increasing worldwide. Renesas’ system design demonstrates a high-end product with features that include seat cooling, seat heating, water heating, and dry heating system and a sterilization function with all controls accessible via a remote.
Hong Kong, China