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AKM releases only 10nA current consumption voltage detector; Ultra Low Power Voltage Detector is ideal for, monitoring and protection for LIC’s, EDLC’s and small LiB’s



To provide renewable and sustainable energy is a big issue, Lithium-ion Capacitors (LIC) and Electric Double Layer Capacitors (EDLC) technology have been evolving year by year. Likewise, low current consumption protection circuit is a key to leverage those capacitor’s performance and helps long product life. 

Asahi Kasei Microdevices Corporation (AKM) releases a highly accurate CMOS voltage detection IC, the AP4405AEN in response to this demand. It integrates a voltage detection circuit, P-MOSFET, N-MOSFET and on & off function to control an external device, while featuring the world class* ultra-low power consumption of 10nA (typical). Six different detection voltages have been in mass-production.

The AP4405AEN’s low power consumption also provides one of the best energy harvesting power management circuits.

* As of September 2020, AKM survey


Ultra-low Power Consumption

The AP4405AEN has low operation current of 10nA (Typ). Thus, voltage detection circuits with low current consumption can be designed with the AP4405AEN.

Support Wide Hysteresis

Both over-discharge and overcharge protections can be designed because the AP4405AEN has wide detection voltage range.

Small Package

The AP4405AEN is housed in a 16-pin HWQFN (3.0 × 3.0mm 0.5mm pitch), ideal for space saving small printed circuit boards.



  • Monitoring charging capacitors such as Lithium-ion Capacitors (LIC) and Electric Double Layer Capacitors (EDLC)
  • Protection for small Lithium-ion Battery (LiB) 
  • Power control for energy harvesting devices