Robotic Lawn Mower

Renesas’ robotic mower reference design features remote control, theft protection, and low power consumption for long battery life

Image of Renesas' Robotic Lawn MowerRenesas’ winning combination reference design for robotic lawn mowers can aid homeowners with huge yards, large landscaping bills, or hours invested in landscaping. A robotic lawn mower saves time and money as well as regular yard maintenance. Renesas offers all the major parts needed for a robotic lawn mower.

Features
  • Single IC for BLDC motor control with integrated analog front-end (AFE)
  • Rich battery management system (BMS) for an up to 8 cell Li-ion battery with reliable safety features for cell balancing and protection
  • Efficient battery charging in CV/CC profile
  • Low power consumption for longer battery life
  • Rain detection using weatherproof humidity sensor and capacitive touch sensing unit (CTSU) for returning to docking station for safe operation
  • Collision detection using time-of-flight (ToF) sensors and lift/tilt detection using 6-axis IMU for stopping the blades, ensuring enhanced safety
  • Docking station with integrated electronic fencing using perimeter wire and charging status monitoring
  • Remote control and theft protection alarm using wireless/GPS connectivity
  • ISL94202 battery pack monitor
    • Standalone 3- to 8-cell Li-ion battery pack monitor
  • ISL81401A buck-boost controller
    • 40 V unidirectional 4-switch synchronous buck-boost controller
  • HS3101 humidity sensor
    • Relative humidity and temperature sensor with membrane
  • ISL85410 buck regulator
    • Wide VIN 1 A synchronous buck regulator
  • ISL80410 LDO
    • 40 V, low quiescent current, 150 mA linear regulator
  • AT45DQ161 memory
    • 16-Mbit SPI Flash memory with dual-I/O and quad-I/O support, 2.3 V minimum
  • R7FA4M1 microcontroller
    • 32-bit MCU with 48 MHz Arm® Cortex®-M4 and LCD controller and capacitive touch for human-machine interface (HMI)
  • RL78/G12 microcontroller
    • Compact, low power microcontrollers for general purpose applications
  • RAJ306001 motor control
    • 30 V motor control IC with built-in 16-bit MCU (RL78/G1F)
  • ISL28191 operational amplifier (op amp)
    • Single supply ultra-low-noise, low distortion rail-to-rail output, op amp
  • ISL28214 op amp
    • Dual general purpose micropower, RRIO op amps
  • ISL29501 proximity sensor
    • ToF signal processing IC
Applications
  • Robotic lawn mowers
  • Autonomous mobile solutions for yards, homes, and warehouses

ISL94202 Battery Pack Monitor

ImageManufacturer Part NumberDescriptionAvailable QuantityView Details
IC BAT MON MULT-CHEM 3-8C 48TQFNISL94202IRTZIC BAT MON MULT-CHEM 3-8C 48TQFN2253 - ImmediateView Details

ISL85410 Buck Regulator and ISL80410 LDO

ImageManufacturer Part NumberDescriptionAvailable QuantityView Details
IC REG BUCK ADJUSTABLE 1A 12DFNISL85410FRZIC REG BUCK ADJUSTABLE 1A 12DFN0View Details
IC REG LIN POS ADJ 150MA 8SOICISL80410IBEZ-TIC REG LIN POS ADJ 150MA 8SOIC0View Details

ISL81401A Buck-Boost Controller

ImageManufacturer Part NumberDescriptionAvailable QuantityView Details
40V 4-SW SYNCH BUCK-BOOST PWM COISL81401AFRZ-T7A40V 4-SW SYNCH BUCK-BOOST PWM CO0View Details

AT45DQ161 Memory

ImageManufacturer Part NumberDescriptionAvailable QuantityView Details
IC FLASH 16MBIT SPI/QUAD 8SOICAT45DQ161-SSHF2B-TIC FLASH 16MBIT SPI/QUAD 8SOIC0View Details

R7FA4M1 and RL78/G12 Microcontrollers

ImageManufacturer Part NumberDescriptionAvailable QuantityView Details
IC MCU 32BIT 256KB FLSH 100LFQFPR7FA4M1AB3CFP#AA0IC MCU 32BIT 256KB FLSH 100LFQFP0View Details
IC MCU 16BIT 16KB FLASH 24HWQFNR5F1027AANA#U5IC MCU 16BIT 16KB FLASH 24HWQFN0View Details

RAJ306001 Motor Control

ImageManufacturer Part NumberDescriptionAvailable QuantityView Details
MSIG MOTOR DRIVER FOR BLDCRAJ306001GNP#AANMSIG MOTOR DRIVER FOR BLDC0View Details

ISL28214 and ISL28191 Operational Amplifiers (Op Amp)

ImageManufacturer Part NumberDescriptionAvailable QuantityView Details
IC OPAMP GP 2 CIRCUIT 8MSOPISL28214FUZIC OPAMP GP 2 CIRCUIT 8MSOP247 - ImmediateView Details
IC OPAMP VFB 1 CIRCUIT SOT23-6ISL28191FHZ-T7IC OPAMP VFB 1 CIRCUIT SOT23-60View Details

ISL29501 Proximity Sensor

ImageManufacturer Part NumberDescriptionAvailable QuantityView Details
IC SIGNAL PROCESSOR TOF 24QFNISL29501IRZ-T7IC SIGNAL PROCESSOR TOF 24QFN0View Details
Published: 2021-09-29