Fault current indicator with Bluetooth® communication
This grid fault current indicator is an example of a low power design system that shows customers the most efficient approach for system implementation.
The fault indicator unit uses Renesas’ newly launched high-performance RA2 MCU series, which includes a 16-bit SAR ADC, 24-bit sigma-delta ADC, COMP, system control, touch control, super low power, etc. In the data collection unit, the RL78/G13 is a standard function MCU with low power and an abundant lineup for general purpose applications. Bluetooth® is used for communication between the two boards. Combined with Renesas’ high performance power and analog solutions, this system can minimize idle quiescent current. This helps save power consumption during standby states.
- Low quiescent power MCU solutions for optimized efficiency
- High performance analog devices for accurate system monitoring
|RA2A1||48MHz Arm® Cortex®-M23 core with integration of a 24-bit sigma-delta ADC||Datasheet|
|RL78/G13||Low power, high integration general-purpose microcontrollers||Datasheet|
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|ISL97634||White LED driver with PWM dimming||Datasheet|
|ISL28134||5V ultra-low noise, zero drift rail-to-rail precision op amp||Datasheet|
|ISL85403||2.5A regulator with integrated high-side MOSFET for synchronous buck or boost buck converter||Datasheet|
|ISL9113||Low input voltage and high efficiency synchronous boost converter with 1.3A switch||Datasheet|
|ISL80031||3A synchronous buck converter in 2x2 DFN package||Datasheet|
|ISL88011||5 Ld voltage supervisor with adjustable Power-On reset and Active-High reset||Datasheet|
|ISL6294||High input voltage charger||Datasheet|
System block diagram