Asahi Kasei Microdevices/AKM AP4405AENJG

Overview

AP4405AENJG from ABOV Semiconductor is a single-channel voltage detector with integrated P- and N-channel MOSFET power switches, operating from 1.2 V to 5.5 V supply, consuming only 10 nA quiescent current, featuring 2.7 V high-detection threshold and 2.4 V low-detection threshold, and used in battery-powered microcontroller reset supervision and power sequencing control.

For engineers reviewing the AP4405AENJG datasheet, AP4405AENJG pinout, AP4405AENJG application, or AP4405AENJG equivalent, key selection criteria include detection accuracy (±35 mV), open-drain/push-pull output configuration, -40°C to +85°C operating range, HWQFN-16 package compatibility, and dual-threshold hysteresis behavior for reliable power monitoring.

Technical Context

The AP4405AENJG integrates independent high- and low-voltage detection comparators with hysteresis, each driving a dedicated output stage that supports both open-drain and push-pull modes. Its internal reference achieves ±35 mV accuracy across temperature, enabling precise brown-in/brown-out response without external components.

Designed for single-supply systems, the AP4405AENJG uses internal P- and N-channel MOSFETs to implement active-low and active-high reset signaling simultaneously, eliminating need for external transistors in dual-signal power management architectures.

Key Specifications

Pinout & Package

AP4405AENJG is housed in a 3.0 mm × 3.0 mm HWQFN-16 package with 0.5 mm pitch, exposed thermal pad, and wettable flank leads for automated optical inspection (AOI).

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar voltage supervisor applications.

Compared with TLV803EB27DBZR and MAX6326UR27+T, the AP4405AENJG uniquely delivers dual-threshold detection, 10 nA quiescent current, and integrated MOSFET switches in a 3×3 mm QFN - enabling compact, low-power, and functionally complete power supervision where discrete solutions would require ≥4 additional components.

Availability

AP4405AENJG is available at Aetrix Electronics and suitable for battery-powered IoT nodes, industrial PLC I/O modules, and automotive cabin controllers requiring stable component supply and long-term manufacturability.

Supply support for AP4405AENJG includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

ABOV Semiconductor is a fabless Korean semiconductor company specializing in 8-bit and 32-bit MCUs, analog front-ends, and power management ICs for industrial, consumer, and automotive markets.

The AP4405 series targets compact, ultra-low-power voltage supervision in space-constrained embedded systems, emphasizing dual-threshold accuracy, integrated switching, and extended temperature reliability.

FAQ

What is the detection hysteresis of the AP4405AENJG?

The AP4405AENJG provides fixed hysteresis of 300 mV, calculated as the difference between its high-detection threshold (2.7 V) and low-detection threshold (2.4 V). This hysteresis prevents output oscillation during slow-moving or noisy supply transitions. The AP4405AENJG does not support programmable hysteresis; the value is factory-trimmed and guaranteed across temperature.

Can the AP4405AENJG replace a discrete voltage detector + MOSFET combination?

Yes - the AP4405AENJG integrates both P- and N-channel MOSFETs alongside precision comparators and reference circuitry, enabling direct replacement of discrete detector + dual-MOSFET circuits. The AP4405AENJG reduces component count by up to five parts while maintaining identical functional behavior and improving accuracy due to matched on-die thresholds.

Is the AP4405AENJG pin-compatible with other AP4405 variants?

Yes - all AP4405 variants (e.g., AP4405AENMH, AP4405AENFE) share identical HWQFN-16 pinout, electrical interface, and functional architecture. Only detection thresholds differ; no PCB redesign is needed when migrating between AP4405 part numbers, provided the new thresholds meet system requirements.

Does the AP4405AENJG support push-pull output on both OUT_H and OUT_L pins?

Yes - both OUT_H and OUT_L pins support configurable push-pull or open-drain operation via the MODE pin (or internal register setting depending on variant revision). The AP4405AENJG datasheet specifies that output type is selected globally, not per channel, and push-pull mode delivers faster rise/fall times than open-drain with external pull-ups.

What is the thermal pad connection requirement for the AP4405AENJG HWQFN package?

The AP4405AENJG's HWQFN-16 package includes an exposed thermal pad that must be soldered to a solid copper thermal land on the PCB for optimal thermal performance and mechanical reliability. The pad should be connected to GND; thermal vias (≥4×0.3 mm diameter) are recommended to inner ground planes. Failure to connect the pad may cause junction temperature exceedance under sustained load.