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Diodes Incorporated AP2171DM8G-13
- Part No.:
- AP2171DM8G-13
- Manufacturer:
- Diodes Incorporated
- Package:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
AP2171DM8G-13.pdf
- Description:
- IC PWR SWITCH P-CHAN 1:1 8MSOP
- Quantity:
- Payment:
- Shipping:
Inventory:1,947
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Product details
Overview
AP2171DM8G-13 from Diodes Incorporated is a single-channel, active-high enable, high-side USB power switch with integrated output discharge, 1.5A current limiting, 90mΩ RDS(ON) (U-DFN2018-6), and 7ms deglitched fault reporting - designed for hot-swap USB 2.0 ports in laptops, docking stations, and set-top boxes.
For engineers reviewing the AP2171DM8G-13 datasheet, AP2171DM8G-13 pinout, AP2171DM8G-13 application, or AP2171DM8G-13 equivalent, key selection criteria include enable polarity compatibility, thermal shutdown threshold (140°C), output discharge resistance (100Ω), UVLO trip (1.9V typ), and package-specific RDS(ON) and θJA values across SOT25, SO-8, MSOP-8, MSOP-8EP, and U-DFN2018-6 variants.
Technical Context
The AP2171D implements a thermally protected, slew-rate-controlled high-side NMOS switch with internal current-sense FET-based over-current detection and UVLO that activates only when enabled. Its architecture integrates a dedicated discharge NMOS (RDIS = 100Ω) activated upon EN de-assertion, eliminating external discharge circuitry.
Functional block includes deglitched FLG open-drain output (7ms blanking), reverse-current blocking logic, and thermal shutdown with 25°C hysteresis. The device operates across 2.7V–5.5V input, supports 1A continuous load, and delivers 0.6ms typical rise time with controlled turn-on/turn-off delays (<0.05ms).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Current Limit | 1.5A typical - clamps output during overload without shutdown, enabling safe hot-swap recovery |
| RDS(ON) | 90mΩ max (U-DFN2018-6, VIN=5V, TA=25°C) - minimizes conduction loss and self-heating at 1A |
| UVLO Threshold | 1.9V typical - prevents switch activation until stable input rail is established, critical for hot-plug reliability |
| FLG Blanking Time | 7ms typical - suppresses false fault reporting during capacitive inrush, no external RC needed |
| Discharge Resistance | 100Ω - enables rapid VOUT ramp-down (e.g., 0.6ms for 1µF) when disabled, preventing backfeed |
| Thermal Shutdown | 140°C trigger with 25°C hysteresis - cycles output until fault removal, protecting die under sustained short-circuit |
| Enable Polarity | Active High - simplifies interface with host GPIOs asserting logic-high to power downstream loads |
Pinout & Package
AP2171DM8G-13 is supplied in an SO-8 package (JEDEC MS-012AA), with exposed pad for thermal enhancement. Pin 1 is NC (no internal connection, recommended tied to OUT); pins 2 & 3 are IN (must be externally shorted); pin 4 is EN; pin 5 is FLG; pins 6 & 7 are OUT (must be externally shorted); pin 8 is GND.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (NC) | No internal connection | Must be externally connected to OUT to minimize EMI and improve thermal coupling |
| 2,3 (IN) | Input voltage supply | Primary power entry point; requires local 0.1µF ceramic bypass to GND for transient suppression |
| 4 (EN) | Enable control input | Active-high logic interface; accepts 2V–VIN high, 0–0.8V low; draws ≤1µA in shutdown |
| 5 (FLG) | Fault reporting output | Open-drain, active-low signal indicating over-current or over-temperature; 7ms deglitch prevents false triggers |
| 6,7 (OUT) | Switched output | Delivers regulated power to load; multiple pins reduce trace resistance and improve current sharing |
| 8 (GND) | Power and signal reference | Return path for all currents; must connect to PCB ground plane and exposed pad for thermal performance |
Key Features
| Feature | Design Value |
|---|---|
| Integrated output discharge | 100Ω internal NMOS discharges load capacitor on disable - eliminates need for external discharge FET/resistor network |
| Reverse current blocking | Prevents backflow from VOUT to VIN when switch is off - protects upstream supply during battery-backup or shared-rail scenarios |
| Controlled rise/fall time | 0.6ms typical rise time (CL=1µF, RL=10Ω) - limits inrush current to <2A, reducing stress on connectors and upstream regulators |
| Low shutdown current | ≤1µA max at TA=85°C - enables always-on system monitoring without battery drain in portable applications |
| ESD robustness | 4kV HBM, 300V MM - meets IEC 61000-4-2 level 3 requirements for USB port interfaces exposed to user handling |
Applications
| USB 2.0 Port Protection | Laptop Docking Station Power Control |
|---|---|
Use Scenario: Protecting individual USB 2.0 downstream ports against short circuits, overloads, and hot-insertion surges in desktop motherboards and USB hubs. IC Role / Device Role / Timing Role: High-side power switch with UVLO, current limiting, and deglitched FLG reporting - acts as first-line protection before USB transceiver and controller. Use Value: Prevents bus-wide reset during port faults; 7ms FLG blanking avoids false disconnects caused by 120µF output capacitance inrush. | Use Scenario: Enabling/disabling 5V power rails to peripheral modules (HDMI, Ethernet, SATA) in laptop docking stations during hot-plug events. IC Role / Device Role / Timing Role: Controlled-power delivery element with 0.6ms rise time and thermal cycling - ensures smooth voltage ramp and graceful fault recovery without host OS intervention. Use Value: Eliminates connector arcing and system brownouts; discharge function clears residual charge before module removal, meeting USB Type-C safety expectations. |
| Set-Top Box USB Peripheral Interface | Smartphone Charging Port Management |
Use Scenario: Isolating USB peripherals (keyboards, storage drives) from main SoC power domain in consumer set-top boxes with limited thermal margin. IC Role / Device Role / Timing Role: Thermally protected, current-limited power gate - monitors junction temperature (140°C trip) and cycles output during sustained overload. Use Value: Enables fanless design by limiting power dissipation; 25°C hysteresis prevents thermal oscillation during marginal loading conditions. | Use Scenario: Managing 5V power delivery to USB-A charging ports in smartphones supporting OTG host mode, where reverse current must be blocked. IC Role / Device Role / Timing Role: Reverse-current blocking high-side switch with active-high EN - prevents battery discharge into USB peripherals when phone is powered off but port remains connected. Use Value: Extends standby battery life; 90mΩ RDS(ON) minimizes voltage drop across switch, preserving charging efficiency above 4.75V at load. |
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 |
|---|---|---|---|
| AP2161DM8G-13 | Active-low EN, identical RDS(ON), current limit, and protection features | Requires inverted enable logic; same SO-8 footprint and thermal performance | Select when host MCU GPIO is active-low or pull-down biased |
| TUSB2036IPW | USB 2.0 hub controller with integrated 3-port power switches (100mA each), not discrete 1A switch | Provides full hub functionality (PHY, transceiver, repeater) - not a drop-in replacement | Choose only when adding USB hub capability, not standalone power switching |
Compared with AP2161DM8G-13, the AP2171DM8G-13 offers simplified enable interfacing with active-high logic, while TUSB2036IPW serves a fundamentally different system role as a multi-port hub IC rather than a discrete power switch - making AP2161DM8G-13 the only functionally aligned alternative.
Availability
AP2171DM8G-13 is available at Aetrix Electronics and suitable for USB 2.0 port protection, laptop docking station power control, and set-top box peripheral interface applications requiring stable component supply, long-term lifecycle support, and RoHS-compliant green packaging.
Supply support for AP2171DM8G-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 high-reliability power management, signal integrity, and protection solutions for consumer, computing, and industrial markets.
The AP2171D belongs to Diodes' USB power switch product line, engineered specifically for robust hot-swap operation in space-constrained USB 2.0 endpoints - emphasizing low RDS(ON), precise current limiting, and integrated discharge to eliminate external components.
FAQ
What is the maximum continuous load current supported by AP2171DM8G-13?
The AP2171DM8G-13 supports 1A maximum continuous load current per its Recommended Operating Conditions. Although its current-limit threshold is 1.5A typical, sustained operation above 1A requires careful thermal design due to RDS(ON) heating - especially in SO-8 (θJA = 127°C/W) - and derating per ambient temperature curves in the datasheet.
Does AP2171DM8G-13 require external components for fault debouncing?
No. The AP2171DM8G-13 integrates a 7ms deglitch timer on the FLG output, which suppresses transient over-current events such as capacitive inrush without needing external RC networks. This is confirmed in the Functional Block Diagram and Electrical Characteristics table (TBlank = 4–15ms), and validated in Figure 6's short-circuit recovery waveform.
How does the output discharge function operate, and what is its design impact?
When EN is de-asserted, an internal 100Ω NMOS connects OUT to GND, discharging external load capacitance. For a 120µF output cap, discharge time is ~14ms (RC time constant). This prevents backfeed into upstream supplies and ensures safe hot-removal - critical in USB OTG and dual-power-domain systems where residual VOUT could damage connected peripherals.
Can AP2171DM8G-13 be used in automotive applications?
No. The AP2171DM8G-13 is rated for –40°C to +85°C ambient operation and lacks AEC-Q100 qualification, automotive-grade ESD (e.g., ISO 10605), or extended temperature range (–40°C to +125°C). Its UVLO (1.9V) and thermal shutdown (140°C) thresholds are optimized for commercial computing/consumer USB ports, not automotive power distribution requirements.
AP2171DM8G-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:
- Non-Inverting
- Features:
- 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
AP2171DM8G-13 FAQ
1.How can I place an order for AP2171DM8G-13 through Aetrix?
Please submit a Request for Quotation (RFQ) for AP2171DM8G-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 AP2171DM8G-13 reliable?
The price and inventory of AP2171DM8G-13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AP2171DM8G-13 is usually 5 days.
3.What payment methods are accepted for AP2171DM8G-13?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AP2171DM8G-13 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AP2171DM8G-13?
AP2171DM8G-13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AP2171DM8G-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 AP2171DM8G-13?
For technical support, including AP2171DM8G-13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AP2171DM8G-13 requirements.
6.How does Aetrix verify that AP2171DM8G-13 is sourced from the original manufacturer or authorized distributors?
All AP2171DM8G-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 AP2171DM8G-13 meets industry standards.
7.What is the process for return or replacement of AP2171DM8G-13?
All AP2171DM8G-13 units undergo pre-shipment inspection (PSI). If there is an issue with AP2171DM8G-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 AP2171DM8G-13 part is unused and in its original packaging.
Return procedure for AP2171DM8G-13:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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