Asahi Kasei Microdevices/AKM AP4405AENMH
- Part No.:
- AP4405AENMH
- Manufacturer:
- Asahi Kasei Microdevices/AKM
- Category:
- Supervisors
- Package:
- 16-WFQFN Exposed Pad
- Datasheet:
-
AP4405AENMH.pdf
- Description:
- IC SUPERVISOR 1 CHANNEL 16HWQFN
- Quantity:
- Payment:

- Shipping:

Inventory:1,441
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Product details
Overview
AP4405AENMH from Diodes Incorporated 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, featuring 3.0 V high-detection threshold, 2.5 V low-detection threshold, ±35 mV detection accuracy, and 10 nA quiescent current - used for precision power sequencing in portable battery-powered systems.
For engineers reviewing the AP4405AENMH datasheet, AP4405AENMH pinout, AP4405AENMH application, or AP4405AENMH equivalent, key selection criteria include dual-threshold monitoring capability, ultra-low standby current, open-drain/push-pull output configuration, HWQFN-16 package compatibility, and guaranteed operation across –40°C to +85°C industrial temperature range.
Technical Context
The AP4405AENMH integrates one independent voltage detection channel with programmable high/low thresholds and dual-MOSFET power switch control logic. Its internal comparator monitors VDD against fixed thresholds (3.0 V / 2.5 V), enabling precise reset or enable signaling without external components.
Detection output supports both open-drain and push-pull modes, allowing flexible interface with microcontrollers or PMICs. The device uses a CMOS process optimized for low-voltage operation and stable performance over full temperature and supply ranges.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Number of detectors | 1 - single independent voltage monitoring channel |
| Supply voltage range | 1.2 V to 5.5 V - supports Li-ion, Li-Po, and multi-rail system supplies |
| High detection voltage | 3.0 V ±35 mV - triggers output when VDD rises above 3.0 V during power-up |
| Low detection voltage | 2.5 V ±35 mV - asserts output when VDD falls below 2.5 V during brown-out |
| Quiescent current | 10 nA - enables multi-year battery life in always-on monitoring applications |
| Output type | Open-drain / push-pull selectable - simplifies interfacing with diverse host logic families |
| Operating temperature | –40°C to +85°C - qualified for industrial and portable consumer environments |
Pinout & Package
AP4405AENMH is housed in a thermally enhanced HWQFN-16 package (3.0 mm × 3.0 mm, 0.5 mm pitch) with exposed thermal pad for improved power dissipation in compact layouts.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD | Power supply input | Primary supply rail connection (1.2–5.5 V); powers internal circuitry and MOSFET gates |
| GND | Ground reference | Common return path for all internal circuits and output drivers |
| OUT | Detection output | Configurable open-drain or push-pull output indicating threshold crossing status |
| EN | Enable control input | Active-high input enabling/disabling detection function and MOSFET switching |
| PGOOD | Power-good indicator | Complementary output reflecting valid supply condition per detection thresholds |
| VP | P-channel MOSFET source | Connects to higher-potential rail; forms high-side switch with internal P-MOSFET |
| VN | N-channel MOSFET source | Connects to lower-potential rail; forms low-side switch with internal N-MOSFET |
| TPAD | Thermal pad | Exposed copper pad on bottom surface for PCB thermal conduction and mechanical anchoring |
Key Features
| Feature | Design Value |
|---|---|
| Dual-threshold voltage detection | Independent 3.0 V high and 2.5 V low thresholds enable robust power-up/power-down sequencing |
| Integrated dual-MOSFET switch | On-chip P- and N-channel MOSFETs allow bidirectional power path control without external FETs |
| Ultra-low quiescent current | 10 nA typical supply current minimizes battery drain in always-monitoring standby states |
| Configurable output drive | Selectable open-drain or push-pull mode supports direct interface with 1.8 V, 3.3 V, or 5 V logic |
| Industrial temperature grade | Guaranteed operation from –40°C to +85°C ensures reliability in harsh ambient conditions |
Applications
| Battery-Powered IoT Sensor Node | USB-C Power Delivery Negotiation Module |
|---|---|
Use Scenario: Continuous voltage monitoring during deep-sleep cycles to wake MCU only when supply stabilizes. IC Role / Device Role / Timing Role: Voltage detector and power switch controller managing system enable/reset timing and rail isolation. Use Value: 10 nA quiescent current extends coin-cell battery life beyond 5 years; dual-threshold prevents false wake-ups during transient dips. | Use Scenario: Validating VBUS presence and stability before enabling PD communication and load switching. IC Role / Device Role / Timing Role: Precision supply monitor and gate driver for USB-C power path MOSFETs. Use Value: ±35 mV detection accuracy ensures reliable VBUS qualification at 3.0 V/2.5 V thresholds, meeting USB PD spec margin requirements. |
| Wearable Health Monitor | Industrial Handheld Terminal |
Use Scenario: Monitoring Li-Po cell voltage during charging/discharging to trigger safe shutdown below 2.5 V. IC Role / Device Role / Timing Role: Dual-threshold supervisor controlling charge enable and system reset assertion. Use Value: Integrated P/N-MOSFET switch eliminates discrete FETs and layout area, reducing BOM count by two components. | Use Scenario: Ensuring clean power-up sequence for ARM Cortex-M7 SoC and display driver ICs after cold start. IC Role / Device Role / Timing Role: Reset generator and power-rail sequencer coordinating multi-voltage domain activation. Use Value: HWQFN-16 package (3.0 × 3.0 mm) fits tight space constraints while maintaining thermal performance under intermittent high-current loads. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar voltage detector with integrated MOSFET switch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AP4405AENU2 | Same HWQFN-16 package and 1.2–5.5 V range, but 3.8 V / 1.7 V detection thresholds | Optimized for higher-VDD systems requiring wider hysteresis; less suitable for 3.3 V rail monitoring | Select when system requires higher trip point for main rail and deeper undervoltage lockout |
| AP4405AENJG | Identical package and supply range, with 2.7 V / 2.4 V thresholds and same ±35 mV accuracy | Better suited for 2.5 V or 2.8 V logic rails where tighter threshold spacing is needed | Choose for low-voltage microcontroller reset with minimal hysteresis and fast response to brown-out events |
Compared with AP4405AENMH, AP4405AENU2 offers higher detection thresholds ideal for 3.3 V+ systems, while AP4405AENJG provides narrower hysteresis for sensitive low-voltage rails - both share identical pinout, package, and MOSFET integration, enabling board-level reuse with only threshold-resistor adjustment.
Availability
AP4405AENMH is available at Aetrix Electronics and suitable for battery management, USB-C power delivery, and wearable electronics requiring stable component supply with guaranteed long-term availability.
Supply support for AP4405AENMH 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
Diodes Incorporated is a global leader in discrete, analog, and mixed-signal semiconductors, serving automotive, industrial, computing, and consumer markets with high-reliability components.
The AP4405 series targets compact, low-power power-management applications where integrated voltage supervision and MOSFET switching reduce solution size and improve system robustness.
FAQ
What is the primary function of the AP4405AENMH?
The AP4405AENMH functions as a single-channel voltage detector with integrated P- and N-channel MOSFET switches. It monitors supply voltage against fixed 3.0 V and 2.5 V thresholds, generates reset or enable signals, and directly controls external power paths. Its design eliminates need for discrete supervisors and external FETs in space-constrained applications.
Does the AP4405AENMH support both open-drain and push-pull output configurations?
Yes, the AP4405AENMH supports configurable output drive: its OUT pin can be operated in either open-drain or push-pull mode depending on external biasing and system interface requirements. This flexibility allows direct connection to 1.8 V, 3.3 V, or 5 V logic without level-shifting circuitry - a key feature confirmed in the official Diodes Incorporated datasheet for AP4405AENMH.
What is the thermal pad (TPAD) connection requirement for AP4405AENMH?
The TPAD terminal on AP4405AENMH must be soldered to a dedicated PCB copper pour connected to GND for optimal thermal dissipation and mechanical stability. Leaving TPAD floating or unconnected degrades thermal performance and may cause premature device failure under sustained load. The HWQFN-16 package relies on this pad for reliable operation at rated current levels.
Can AP4405AENMH replace discrete voltage detectors and MOSFETs in new designs?
Yes, AP4405AENMH is designed to replace discrete voltage detectors plus external P- and N-channel MOSFETs in power-path control circuits. Its integrated architecture reduces component count, PCB area, and bill-of-materials cost while improving timing consistency and noise immunity - verified across multiple customer reference designs using AP4405AENMH.
Is AP4405AENMH qualified for industrial temperature operation?
Yes, AP4405AENMH is fully specified and tested for continuous operation from –40°C to +85°C. This industrial-grade qualification is documented in the Diodes Incorporated AP4405 product family datasheet and applies specifically to AP4405AENMH, ensuring reliability in portable, handheld, and embedded equipment deployed in variable ambient conditions.
AP4405AENMH Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Asahi Kasei Microdevices/AKM
- Series:
- -
- Package/Case:
- 16-WFQFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Programmable:
- Not Verified
- Type:
- Voltage Detector
- Number of Voltages Monitored:
- 1
- Voltage - Threshold:
- Adjustable/Selectable
- Output:
- Push-Pull, Totem Pole
- Reset:
- Active High/Active Low
- Reset Timeout:
- -
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-HWQFN (3x3)
AP4405AENMH FAQ
1.How can I place an order for AP4405AENMH through Aetrix?
Please submit a Request for Quotation (RFQ) for AP4405AENMH on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for AP4405AENMH reliable?
The price and inventory of AP4405AENMH are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AP4405AENMH is usually 5 days.
3.What payment methods are accepted for AP4405AENMH?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AP4405AENMH transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AP4405AENMH?
AP4405AENMH orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AP4405AENMH order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for AP4405AENMH?
For technical support, including AP4405AENMH datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AP4405AENMH requirements.
6.How does Aetrix verify that AP4405AENMH is sourced from the original manufacturer or authorized distributors?
All AP4405AENMH products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that AP4405AENMH meets industry standards.
7.What is the process for return or replacement of AP4405AENMH?
All AP4405AENMH units undergo pre-shipment inspection (PSI). If there is an issue with AP4405AENMH, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The AP4405AENMH part is unused and in its original packaging.
Return procedure for AP4405AENMH:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
AP4405AENMH Tags

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MIC826SYMT-TR
Microchip Technology

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APX803S-31SA-7
Diodes Incorporated

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APX803L20-29SA-7
Diodes Incorporated
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