Special Contents for Automotive Applications
The reason RICOH power management IC has been chosen for more than 20 years
Special Contents for IoT Devices
Ultra-low supply current / Low noise / Low electromotive force / Battery monitoring
Special Contents for Industrial Applications
Long term supply / Flexible quantity purchase / High quality and reliability
Intelligent power switch protects a battery line. For example, each IC of the R5550K series has two steps abnormal current detectors and an abnormal voltage detector.
In the R5550KxxxA, the first step abnormal current detector for lower current, detecting counter delay is set long, but second step abnormal current detector for higher current, the counter delay is set short.
Therefore, recognition of the momentum permissible current is possible. Not only that, if the preset detector delay time has passed, the switch turns off. But after a certain time, automatically resumed and checking the current again and the same operation repeats until the abnormal cause is removed.
|Operating Voltage Range||UVLO Detect
|Current Limit Threshold||Output Current Limit||Internal
|R5550||180mΩ||2.6µA||2.3V to 5.25V||1.9V||1A||300mA||460mA||624mA||1130mA||1470mA||1790mA||Pch|