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
The R5434 is an overcharge protection IC for 2 to 5 serial Li-ion/Li-polymer secondary battery. When an overcharge is detected, after the IC internally fixed delay time, the output of COUT becomes "H". After detecting the overcharge, when the cell voltage becomes lower than the overcharge release voltage, the overcharge state is released. The output type is CMOS.
|Supply Voltage||-0.3 V to 30 V / VC2-0.3V to VC2+6.5 V (Absolute maximum Rating)|
|Operating Input Voltage Range||4.0 V to 25.0 V|
|Supply Current||Typ. 3.0 µA|
|Over-charge Detector Threshold Range||3.6 V to 4.6 V|
|Over-charge Voltage Accuracy||±25 mV|
|Over-charge Delay time||1.5 s|
|Functions||2 to 5 Cells Selectable Protection|
|Overcharge Delay Time Shortening Function with CTLC pin|
*) The tab is substrate level (GND).
PRODUCT LONGEVITY PROGRAM
R5434 operate PRODUCT LONGEVITY PROGRAM.
This program has been introduced to help customers select the most appropriate part for applications that require long life cycles.
The overcharge and the delay time are user-selectable options.
|Product Name||Package||Quantity per Reel|
*1: VDET1n, VREL1n : n =1, 2, 3, 4, 5