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Diodes Incorporated AP2161DM8G-13
- Part No.:
- AP2161DM8G-13
- Manufacturer:
- Diodes Incorporated
- Package:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
AP2161DM8G-13.pdf
- Description:
- IC PWR SWITCH P-CHAN 1:1 8MSOP
- Quantity:
- Payment:
- Shipping:
Inventory:382
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Product details
Overview
AP2161DM8G-13 from Diodes Incorporated is an active-low enable, 1A high-side USB power switch with integrated output discharge, current limiting (1.5A typ), 90mΩ RDS(ON) at 5V, and 7ms deglitched fault reporting - designed for hot-swap protection in USB 2.0-compliant laptop docking stations and set-top box peripheral ports.
For engineers reviewing the AP2161DM8G-13 datasheet, AP2161DM8G-13 pinout, AP2161DM8G-13 application, or AP2161DM8G-13 equivalent, key selection criteria include enable polarity compatibility, thermal shutdown threshold (140°C), output discharge resistance (100Ω), UVLO trip (1.9V typ), and SO-8 package thermal resistance (127°C/W).
Technical Context
The AP2161DM8G-13 implements a thermally protected high-side NMOS switch with slew-rate controlled gate drive, enabling soft-start turn-on (0.6ms typical rise time) and reverse-current blocking. Its internal current sense FET eliminates external shunt resistors while maintaining accurate 1.5A overcurrent limiting across -40°C to +85°C.
UVLO (1.9V typ) ensures startup only after stable input; 7ms FLG deglitch prevents false fault latching during capacitive load inrush; and the integrated 100Ω discharge path actively pulls OUT to GND when EN is de-asserted - all without external components.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Current Limit | 1.5A typical - clamps sustained overload current to prevent damage to downstream circuitry |
| RDS(ON) | 90mΩ max at 5V/25°C (SO-8) - minimizes conduction loss and self-heating under 1A load |
| Input Voltage Range | 2.7V–5.5V - supports full USB 2.0 bus voltage range including low-voltage brownout conditions |
| Enable Polarity | Active-low - matches legacy USB port control logic requiring low-enable signaling |
| FLG Blanking Time | 7ms typical - suppresses transient overcurrent events (e.g., 120µF capacitor inrush) without false flag assertion |
| Discharge Resistance | 100Ω - provides controlled 0.6ms discharge time for 1µF output capacitance, preventing floating rail issues |
| Thermal Shutdown | 140°C trip with 25°C hysteresis - enables safe cycling during sustained short-circuit faults |
Pinout & Package
AP2161DM8G-13 is packaged in SO-8 (M8G suffix), with exposed pad not electrically connected but recommended for thermal grounding. Pin functions are validated per Diodes DS32250 Rev. 6-2.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| GND (Pin 1) | Power ground reference | Primary return path for internal current sense and thermal sensing; must be low-impedance |
| IN (Pins 2,3) | Input power supply | Must be externally tied together; accepts 2.7–5.5V USB-compatible rail |
| EN (Pin 4) | Active-low enable input | Logic low ≤0.8V enables switch; high ≥2V disables - direct interface with 3.3V/5V GPIO |
| FLG (Pin 5) | Open-drain fault indicator | Asserts low on overcurrent or overtemperature; requires external pull-up for system monitoring |
| OUT (Pins 6,7) | Switched output | Must be externally tied together; delivers regulated current-limited power to load |
| NC (Pin 8) | No internal connection | Not bonded; recommended to tie to OUT for EMI reduction and mechanical stability |
Key Features
| Feature | Design Value |
|---|---|
| Integrated output discharge | 100Ω internal NMOS path discharges output to GND within 0.6ms (1µF), eliminating external discharge circuitry |
| Reverse current blocking | Prevents backflow from OUT to IN when switch is disabled - critical for multi-rail systems sharing common grounds |
| UVLO with hysteresis | Turns on only above 1.9V and stays on until VIN drops below ~1.6V - prevents erratic switching during power ramp |
| ESD robustness | 4kV HBM / 300V MM - withstands handling and board-level ESD events without latch-up or parameter shift |
| Low shutdown current | 1µA max at 25°C - enables battery-backed systems to maintain >10-year shelf life without significant drain |
Applications
| USB Peripheral Port Protection | Laptop Docking Station Power Control |
|---|---|
Use Scenario: Hot-plug insertion of USB peripherals (keyboards, storage) into powered host systems. IC Role / Device Role / Timing Role: High-side power switch enforcing controlled voltage ramp (0.6ms rise time) and current limiting during plug-in. Use Value: Prevents bus voltage sag and host controller reset by limiting inrush to ≤1.5A while ensuring clean power sequencing. |
Use Scenario: Isolating auxiliary 5V rails (HDMI, Ethernet, USB-C) in multi-interface laptop docks. IC Role / Device Role / Timing Role: Independent channel power switch with fault-flag reporting for system-level thermal management. Use Value: Enables firmware-controlled port disable with automatic discharge - avoids floating outputs and residual charge hazards. |
| Set-Top Box USB Hub Management | Industrial USB Host Interface |
Use Scenario: Providing isolated 5V power to USB-connected streaming sticks or DVB-T tuners in consumer STBs. IC Role / Device Role / Timing Role: Current-limited power delivery with 7ms deglitched FLG for reliable fault detection amid noisy RF environments. Use Value: Eliminates need for external RC filtering on FLG line - reduces BOM count and PCB area in space-constrained enclosures. |
Use Scenario: Securing USB host ports in factory automation controllers exposed to 40–85°C ambient operation. IC Role / Device Role / Timing Role: Thermal-shutdown protected switch with 140°C trip and 25°C hysteresis for continuous-duty reliability. Use Value: Sustains operation under sustained 1A loads without derating - verified up to +85°C ambient with SO-8 θJA = 127°C/W. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-side USB power switch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TUSB2036IRHBR | USB 2.0 transceiver with integrated hub logic - not a standalone power switch; lacks output discharge and thermal shutdown | Designed for full USB signal + power routing; requires external power switches for port isolation | Select only if full hub functionality (PHY + repeater + power control) is required - not a drop-in replacement |
| TPS2051BDBVR | 1.5A single-channel power switch with active-high enable and 120mΩ RDS(ON); no integrated discharge function | Requires external 100Ω+ discharge path and RC network for FLG debouncing | Choose when active-high enable aligns with system logic and board space allows discrete discharge components |
Compared with TUSB2036IRHBR and TPS2051BDBVR, AP2161DM8G-13 uniquely integrates active-low enable, output discharge, and 7ms deglitched fault reporting in SO-8 - reducing component count and improving hot-swap reliability without sacrificing thermal safety.
Availability
AP2161DM8G-13 is available at Aetrix Electronics and suitable for USB 2.0 peripheral protection, laptop docking station power management, and industrial USB host interface designs requiring stable component supply, long-term lifecycle support, and RoHS-compliant green packaging.
Supply support for AP2161DM8G-13 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 manufacturer of discrete semiconductors and analog ICs, specializing in power management, signal integrity, and protection solutions for high-volume electronics markets.
The AP2161D/AP2171D product line targets USB-compliant hot-swap applications requiring integrated current limiting, thermal protection, and output discharge - optimized for consumer, computing, and communications equipment where reliability and small footprint are critical.
FAQ
What is the maximum continuous load current supported by AP2161DM8G-13?
The AP2161DM8G-13 is rated for 1A maximum continuous load current per Diodes DS32250 Rev. 6-2 Section "Recommended Maximum Continuous Load Current". This rating accounts for thermal limits in SO-8 package at +85°C ambient, with derating applied above that temperature using θJA = 127°C/W and RDS(ON) ≤ 115mΩ.
Does AP2161DM8G-13 require external components for basic operation?
No external components are required for core functionality: the 7ms FLG deglitch, 100Ω output discharge, UVLO, and thermal shutdown are fully integrated. A 0.1µF ceramic bypass capacitor between IN and GND is recommended for noise immunity, and an external pull-up on FLG is needed for system-level fault monitoring - both are standard design practices, not functional dependencies.
How does the active-low enable affect system-level control logic?
The active-low EN pin (Pin 4) asserts switch conduction when pulled ≤0.8V and disables output when ≥2V. This matches legacy USB port controllers and microcontrollers with open-drain or push-pull outputs capable of sinking ≥1µA. No level-shifting is needed for 3.3V or 5V logic families, simplifying interface design versus active-high alternatives.
Can AP2161DM8G-13 be used in dual-purpose HDMI/MHL ports?
No - Diodes explicitly advises against use in dual-purpose ports (e.g., HDMI/MHL) where the output powers a peripheral battery. The integrated discharge function actively drains the output capacitor (and any connected battery) when EN is de-asserted, causing unintended battery depletion. Dedicated non-discharge switches like TPS2051BDBVR are recommended for such applications.
AP2161DM8G-13 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Package/Case:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Switch Type:
- USB Switch
- Number of Outputs:
- 1
- Ratio - Input:Output:
- 1:1
- Output Configuration:
- High Side
- Output Type:
- P-Channel
- Interface:
- On/Off
- Voltage - Load:
- 2.7V ~ 5.5V
- Voltage - Supply (Vcc/Vdd):
- Not Required
- Current - Output (Max):
- 1A
- Rds On (Typ):
- 95mOhm
- Input Type:
- Inverting
- Features:
- Load Discharge, Status Flag
- Fault Protection:
- Current Limiting (Fixed), Over Temperature, Reverse Current, UVLO
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-MSOP
AP2161DM8G-13 FAQ
1.How can I place an order for AP2161DM8G-13 through Aetrix?
Please submit a Request for Quotation (RFQ) for AP2161DM8G-13 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 AP2161DM8G-13 reliable?
The price and inventory of AP2161DM8G-13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AP2161DM8G-13 is usually 5 days.
3.What payment methods are accepted for AP2161DM8G-13?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AP2161DM8G-13 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AP2161DM8G-13?
AP2161DM8G-13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AP2161DM8G-13 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 AP2161DM8G-13?
For technical support, including AP2161DM8G-13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AP2161DM8G-13 requirements.
6.How does Aetrix verify that AP2161DM8G-13 is sourced from the original manufacturer or authorized distributors?
All AP2161DM8G-13 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 AP2161DM8G-13 meets industry standards.
7.What is the process for return or replacement of AP2161DM8G-13?
All AP2161DM8G-13 units undergo pre-shipment inspection (PSI). If there is an issue with AP2161DM8G-13, 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 AP2161DM8G-13 part is unused and in its original packaging.
Return procedure for AP2161DM8G-13:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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