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Overview
Automatic dishwashers are common time-and-work-savers in many households. Dishwashers use jets of hot water applied at high pressure to remove dirt effectively. Since the water inside the dishwasher is reused in cyclic fashion for washing, they consume less water than hand washing, making them eco-friendly.
Dishwashers require fine-grained control over water pumps and complex system control over valves, etc. To meet these requirements, Renesas Electronics supplies 78K0R and the microcontrollers in the R8C Family, among others, as solutions for system control and operation, as well as semiconductor devices such as control TRIACs and power MOSFETs. These chips are designed to meet demand for advanced functionality, high-performance, reduced power consumption, and lower cost.
System Block Diagram
Recommended Products
| Block | Semiconductor Device | Recommended Product Name | Features, etc. |
|---|---|---|---|
| Operation MCU | MCU | R8CFamily | Timers, 5 V operation, small package, 16-bit CPU |
| 3803H Group (QzROM) 3803L Group 3850A Group 7546 Group 7547 Group | Timers, 5 V operation, small package | ||
| 78K0/Kx2 78K0S/Kx1+ | |||
| 78K0R/Kx3 | General Purpose 16-bit MCU | ||
| Reset IC | RNA519xx Series | Variable detection voltage | |
| EEPROM (data correction) | R1EX24xxx Series | I2C bus interface *1 | |
| R1EX25xxx Series | SPI bus interface *2 | ||
| Control MCU | MCU | 78K0R/Ix3 | Timers, 5 V operation, small package, 16-bit CPU |
| R8C Family | |||
| µPD78F071x | 20 MHz, six-phase 10-bit PWM *3 | ||
| Sensor output | Op-amp Comparator | HA1630xxx Series | General-purpose CMOS op-amp, comparator low power consumption |
| HA1631 Series | |||
| UPC358MF-DAA, UPC393MF-DAA | 8-pin SOP package for consumer applications, low power consumption | ||
| General use Surge absorption Circuit protection, etc. | Zener diode | HZMxNB Series | 3-terminal (1 device included) face-mount outline High ESD tolerance optimal for use in surge absorption |
| NNCDxxDA Series | High ESD tolerance optimal for use in surge absorption | ||
| RDxxS Series | 2-terminal face-mount outline | ||
| RKZxxKG Series | 2-terminal face-mount outline High ESD tolerance optimal for use in surge absorption | ||
| Switching diode | HSC119, HSU119 | 2-terminal face-mount outline | |
| HSM2838C, HSM123 | 3-terminal (2 devices included) face-mount outline | ||
| Schottky diode | HRB0502A | 3-terminal face-mount outline (low VF) | |
| HRC0103C | 2-terminal face-mount outline (low VF, low leak current) | ||
| HRV103A, RKR104BKH | 2-terminal face-mount small outline (Io = 1 A) | ||
| Valves | TRIAC | BCR12PM-12LG | Guaranteed maximum junction temperature of 150 ℃ |
| Main motor | TRIAC | BCR8PM-12LG BCR8PM-14LG BCR10PM-12LG | Guaranteed maximum junction temperature of 150 ℃ |
| Lid lock | TRIAC | BCR1AM-12A | ～80W/AC200V～220V |
| Inverter | IGBT | RJH60C9DPD * | |
| Photocoupler (IGBT drive) | PS9306 (6p-SDIP) PS9506 (8p-DIP) | High isolation voltage (5kV r.m.s.), 0.6 A output High CMR (CMR = 25 kV) | |
| TRIAC control | Photocoupler (standard) | PS25xx Series | High isolation voltage (5 kV r.m.s.), 4p-DIP |
| PS27xx Series | High isolation voltage (3.75 kV r.m.s.), 4p-SOP | ||
| PS28xx Series | High isolation voltage (2.5 kV r.m.s.), 4p-SSOP |
* = Under development
*1 I2C: Inter-Integrated Circuit
*2 SPI: Serial Peripheral Interface
*3 PWM: Pulse Width Modulation
Related Application Notes/Sample Code
| Name | Document No. |
|---|---|
| Power MOS FET application note | REJ05G0001-0200 |
| R2A20112 application note * |
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| R2A20115 application note * |
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| R2A20117 application note * |
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| R2A20118A application note * |
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| R2A20121 application note * |
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| R2A20132 application note * |
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*: Please contact your sales representative or contact us directly.
Related Boards
| Name | Part No. |
|---|---|
| R2A20111 evaluation board * |
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| R2A20112 evaluation board * |
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| R2A20115 evaluation board * |
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| R2A20117 evaluation board * |
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| R2A20118A evaluation board * |
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| R2A20121 evaluation board * |
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| R2A20132 evaluation board * |
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*: Please contact your sales representative or contact us directly.
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