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 R5640 is an overcharge protection IC for 2- to 5- serial cell Li-ion / Li-polymer rechargeable battery pack, with built-in high-accuracy voltage detection circuits and delay circuits. Controlling the supply voltage to the CTLC pin can control the COUT pin output. The shutdown detection can reduce the supply current to the minimum.
|Operating Input Voltage Range||4.0 V to 25 V or VC2 +5 V|
|Supply Current||Typ. 2.5 µA|
|Shutdown Current||Max. 0.2 µA|
|Overcharge (VDET1)||Detector Threshold Range||3.60 V to 4.60 V (0.005 V Steps)|
|Detector Threshold Accuracy||± 0.016 V (Ta = 25°C)
± 0.025 V (0°C ≤ Ta ≤ 60°C)
|Detection Delay Time||2 / 4 / 6 / 10 / 16 sec|
|Release Voltage|| VDET1 to VDET1 -0.4 V (0.05 V Steps)
Min. 4.05 V when shutdown detection voltage is 3.7 V.
|Release Voltage Condition||Voltage Release Type|
|Shutdown Detection Voltage||Typ. 2.5 V ± 0.3 V / 3.7 V ± 0.3 V|
|CTLC Pin Detection Delay Time||2 msec|
|Functions||Selectable Timer Reset Delay Function|
|Available Cascade Connection|
|Output Type||Pch. Open-drain of Internal Regulator|
PRODUCT LONGEVITY PROGRAM
R5640 operate PRODUCT LONGEVITY PROGRAM.
This program has been introduced to help customers select the most appropriate part for applications that require long life cycles.
Overcharge detection / release voltages and delay time are user-selectable options.
|Product Name||Package||Quantity per Reel|
*1: VDET1n, VREL1n, VSHTn: n = 1, 2, 3, 4, 5
*2: Min. 4.05 V when shutdown detection voltage (VSHTn) is 3.7 V.