This system is designed for cordless and rechargeable battery-powered gardening tools. It consists of a battery front-end, responsible for monitoring and controlling battery life, and a specialized Renesas motor control microcontroller (MCU) along with a smart gate driver, which drives the BLDC motor. In this application, the 20V leaf blower offers adjustable speeds to optimize usage and prolong battery life. Moreover, the battery can be easily connected to a standalone charging dock.

System Benefits:

  • Renesas’ RL78 MCUs provide compact size, the industry’s lowest current consumption, and advanced motor control functionality, including rotor position detection.
  • The smart gate driver provides high efficiency, accuracy, and superior safety features, ensuring optimal support for motor applications.
  • Highly configurable and effective battery management products are designed to support consumer battery-driven systems.




  • Cordless and rechargeable battery-powered gardening tools

Winning Combinations Interactive Diagram

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4:3 ratio MOSFET MOSFET MOSFET MOSFET Sheet.187 Sheet.188 Sheet.189 Sheet.190 Sheet.191 Sheet.192 Sheet.193 Sheet.194 Sheet.195 Sheet.196 Connector 1.299 Connector 1.300 Sheet.199 Connector 1.307 Sheet.201 Sheet.202 Sheet.203 Sheet.204 Sheet.205 Sheet.206 Sheet.207 Sheet.208 Sheet.209 Sheet.210 Connector 1.321 Connector 1.322 Sheet.213 Connector 1.324 Sheet.215 Sheet.216 Sheet.217 Sheet.218 Sheet.219 Sheet.220 Sheet.221 Sheet.222 Sheet.223 Sheet.224 Connector 1.337 Connector 1.338 Sheet.227 Sheet.228 Sheet.229 Sheet.230 Sheet.231 Sheet.232 Sheet.233 Sheet.234 Sheet.235 Sheet.236 Sheet.237 Connector 1.353 Connector 1.354 Sheet.240 Connector 1.357 Sheet.242 Sheet.243 Sheet.244 Sheet.245 Sheet.246 Sheet.247 Sheet.248 Sheet.249 Sheet.250 Sheet.251 Connector 1.369 Connector 1.370 Sheet.254 Connector 1.373 Sheet.256 Sheet.257 Sheet.258 Sheet.259 Sheet.260 Sheet.261 Sheet.262 Sheet.263 Sheet.264 Sheet.265 Connector 1.385 Connector 1.386 Sheet.268 Connector 1.308 Sheet.270 Connector 1.325 Sheet.272 Connector 1.341 Sheet.274 Sheet.275 Sheet.1 Sheet.2 Sheet.3 Sheet.4 US086 US086 US086 Ground (earth) Sheet.47 Sheet.48 Sheet.49 Sheet.50 Ground Sheet.52 Sheet.53 Resistor - Fixed Battery Pack Battery Pack Battery Pack Blower Tool Block Blower Tool Block Blower Tool Block Sheet.57 Sheet.58 Sheet.59 Sheet.60 Sheet.61 Sheet.62 Sheet.63 Sheet.64 3.3V 3.3V 3.3V 5 5 5 5 Sheet.68 5 5 5 5 Sheet.71 Sheet.72 Sheet.73 Sheet.74 Sheet.75 Non-Renesas Component Sheet.77 Sheet.78 Sheet.79 Sheet.80 Sheet.81 Sheet.82 Darlington.651 Sheet.84 Darlington.254 Sheet.86 Sheet.87 Sheet.88 Speed Control Speed Control Speed Control To Battery Pack - To Battery Pack - To Battery Pack - Sheet.91 Sheet.92 Sheet.93 Sheet.96 5V/8.9mA 5V/8.9mA 5V/8.9mA nFault nFault nFault 2 2 2 2 Sheet.101 nSMPL, EN nSMPL, EN nSMPL, EN 4 4 4 4 Sheet.105 Gate Control Gate Control Gate Control Ground.217 Sheet.110 Sheet.111 18V 18V 18V Sheet.113 Sheet.114 Sheet.115 Sheet.116 Sheet.117 Sheet.118 Sheet.119 Sheet.120 Sheet.121 Sheet.122 Sheet.123 Sheet.124 Connector 1.172 5V 5V 5V Sheet.127 5V/160mA 5V/160mA 5V/160mA Sheet.129 6 6 6 6 Sheet.132 Sheet.136 Sheet.137 Sheet.138 Sheet.139 Resistor - Fixed.247 T T T Sheet.142 Sheet.143 Sheet.144 3 3 3 3 Sheet.147 Sheet.148 3 3 3 3 Sheet.151 Sheet.152 3 3 3 3 Sheet.155 BLDC Motor Square.40 Inductor.10 Sheet.159 Sheet.160 Sheet.161 Inductor.14 Sheet.163 Sheet.164 Sheet.165 Inductor.18 Sheet.167 Sheet.168 Sheet.169 Dynamic connector Dynamic connector.27 Dynamic connector.25 Square Sheet.174 Square.41 Sheet.176 Sheet.177 Sheet.178 Sheet.179 Sheet.180 Sheet.181 Sheet.182 Sheet.183 Sheet.184 Sheet.185 Connector 1.297 Sheet.276 Sheet.277 Sheet.278 Sheet.279 Sheet.280 To Battery Pack + To Battery Pack + To Battery Pack + Battery Pack + Battery Pack + Battery Pack + VPACK VPACK VPACK 18V 18V 18V 5V/50µA 5V/50µA 5V/50µA MCU MCU 1 MCU MCU GPIO GPIO GPIO 10-Bit ADC 10-Bit ADC 10-BitADC GPIO GPIO GPIO I2C I2C I2C Battery Pack Battery Pack Monitor Battery Pack Monitor Battery Pack Monitor VC VC VC I2C I2C I2C CB CB CB Sheet.288 MCU 2 MCU MCU VCC VCC VCC INTP INTP INTP GPO GPO GPO SPI SPI SPI ADC/CMP ADC/CMP ADC/CMP INTP INTP INTP GPIO GPIO GPIO PWM PWM PWM ADC ADC ADC ADC ADC ADC Sheet.289 Smart Gate Driver Smart Gate Driver Smart Gate Driver Gate Control Logic Gate Control Logic Gate Control Logic Gate Driver Gate Driver Gate Driver LDO LDO LDO Interface Interface Interface Sense Block with BEMF Amp Sense Block with BEMF Amp Sense Block with BEMF Amp Sheet.94 Sheet.95 Current Sense Current Sense Current Sense BEMF INT BEMF INT BEMF INT Resistor - Fixed.242 Sheet.134 Sheet.135 Battery.27 Sheet.323 Sheet.324 Sheet.325 Battery.326 Sheet.327 Sheet.328 Sheet.329
Exiting Interactive Block Diagram