Overview

The Renesas RL78/G14 Group and RL78/G1F Group are suitable for use in motor control applications in electric screwdrivers. These microcontrollers feature low power consumption, which makes possible increased energy savings and more compact electric screwdrivers, contributing to longer battery life and making them an eco-friendly solution. Renesas also offers comprehensive solutions for electric drivers in the form of the RL78/G1x Series, which is suitable as the microcontroller for the charger, and highly efficient power MOSFETs for motor drive inverter and charger control. Renesas offers Battery Management ICs for Removable Battery pack to enhance the safety of the battery.

Electric Screwdriver

System Block Diagram

Recommended Products
Block Semiconductor device Recommended products Features, etc.
Motor control MCU MCU RL78/G14 Group Three-phase PWM timer, 5V operation, small package
RL78/G1F Group
Charger control MCU MCU RL78/G1x Series General-purpose microcontroller, 5V operation
Sensor output Op-amp READ2302GSP Full range Input/output , High slew rate
Inverter MOSFET N04xxN, N06xxN Series Low on-resistance
MCU peripheral Sensor signal amplification CMOS op-amp READ2302GSP Full range Input/output , High slew rate
Power element of charger MOSFET RJK40xx Series Low on-resistance, small package
IGBT Gate Drive Photocoupler PS93xx Series
(6/8p-SDIP)
PS94xx Series
(16p-SOP)
PS95xx Series
(8p-DIP)
PS99xx Series
(8p-LSDIP)
High isolation voltage (5kV~7.5kVr.m.s.)
0.6~2.5A output
High CMR (CMR≧50kV/μs)
Removable battery packs Battery Management IC RAJ240080 Series cell number : 3 - 5
Multiple GPIO