The smart terminal backup power system has a wide input voltage range which supports from 4.5V to 40V with 1A to 20A output. A supercapacitor can be used to replace the traditional battery (with defects such as electrolyte leakage) as a backup power supply.
In this solution, the ISL81401 buck-boost controller can work in buck, boost or buck-boost mode with bidirectional CC/CV mode support, and can replace two-part solutions available from competitors. The charge time can be programmed as needed, and discharge time can be optimized to fully discharge the energy. ISL81401 can discharge the capacitor energy as much as the present electronic components, which maximizes the use of capacitive energy and helps save cost.
||Buy / Sample|
40V Bidirectional 4- Switch Synchronous Buck-Boost Controller
|Buck-Boost Controllers (External FETs)||Buy / Sample|
Nch Single Power Mosfet 30V 25A 6.3Mohm HWSON-8
|Power MOSFETs||Buy / Sample|
Ultra Low Power 3 Ld Voltage Supervisors in SC-70 and SOT-23 Packages
|Voltage Supervisor & Reset ICs||Buy / Sample|
Renesas' Lab on the Cloud is an online environment where Renesas solutions, including popular evaluation boards, winning combinations and software, are hosted in a remote lab that customers access and test online.
This reference design has a wide input voltage range which supports 4.5V to 40V with 1A to 20A output. It uses a supercapacitor as a backup power supply.