Diodes Incorporated AP21410FM-7
- Part No.:
- AP21410FM-7
- Manufacturer:
- Diodes Incorporated
- Package:
- 6-UFDFN Exposed Pad
- Datasheet:
-
AP21410FM-7.pdf
- Description:
- IC PWR SWITCH P-CHAN 1:1 6UDFN
- Quantity:
- Payment:

- Shipping:

Inventory:45,481
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Product details
Overview
AP21410FM-7 from Diodes Incorporated is a single-channel, active-low high-side USB power switch optimized for hot-swap and USB 2.0-compliant applications. It delivers 0.2A continuous load current with 95mΩ typical RDS(ON), 0.4A current limiting, undervoltage lockout (1.9V threshold), and thermal shutdown at +140°C - deployed in consumer electronics power rails and portable device USB ports.
For engineers reviewing the AP21410FM-7 datasheet, AP21410FM-7 pinout, AP21410FM-7 application, or AP21410FM-7 equivalent, key selection criteria include enable polarity (active-low), USB 2.0 compliance, reverse current blocking, controlled 0.4ms rise time, and U-DFN2018-6 thermal performance under 2.7–5.5V input operation.
Technical Context
The AP21410FM-7 integrates a low-RDS(ON) N-channel MOSFET with current-sense FET-based overcurrent protection, eliminating external sense resistors. Its UVLO circuit ensures switch activation only above 1.9V, preventing erratic behavior during brown-out conditions in USB host or peripheral power domains.
Thermal shutdown engages at +140°C with +25°C hysteresis, enabling self-recovery after fault clearance. The active-low EN pin directly interfaces with standard USB enumeration logic, while reverse current blocking prevents backfeed from powered downstream loads into the source rail.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 2.7V to 5.5V - supports full USB 2.0 bus voltage range including legacy 3.3V and 5V systems. |
| RDS(ON) | 95mΩ typ @ 5V, 25°C - minimizes conduction loss and self-heating in compact USB port designs. |
| Current Limit | 0.4A typical - clamps short-circuit current to protect upstream power sources and PCB traces. |
| Rise Time | 0.4ms typical - controls inrush current during hot-plug events to prevent supply droop and system reset. |
| Shutdown Current | 1µA max - enables ultra-low-power standby in battery-backed or always-on USB peripherals. |
| UVLO Threshold | 1.9V typ - ensures reliable turn-off during input brown-out, critical for stable USB enumeration. |
| Thermal Shutdown | +140°C with +25°C hysteresis - provides autonomous fault recovery without external supervision. |
Pinout & Package
AP21410FM-7 is housed in a thermally enhanced U-DFN2018-6 package (1.8mm × 2.0mm × 0.55mm) with an exposed thermal pad requiring external connection to GND plane for optimal θJA = 70°C/W performance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 GND | Ground reference and thermal path | Primary return path for internal circuitry and thermal dissipation via exposed pad. |
| 2 IN | Power input | Accepts 2.7–5.5V supply; must be bypassed with 0.01–0.1µF ceramic capacitor near pin. |
| 3 EN | Active-low enable control | Pulled low to activate switch; high-Z when disabled; compatible with 3.3V/5V logic. |
| 4 NC | No internal connection | Not bonded; must remain unconnected on PCB to avoid parasitic coupling. |
| 5,6 OUT | Switched power output | Drives load; dual pins reduce trace resistance and improve current sharing; requires 10µF+ bulk capacitance. |
Key Features
| Feature | Design Value |
|---|---|
| USB 2.0 Compliance | Fully compliant with USB 2.0 power delivery requirements including current limiting and hot-swap timing. |
| Reverse Current Blocking | Prevents backflow from powered downstream loads (e.g., charged battery) into upstream VBUS during disable. |
| Controlled Rise/Fall Times | 0.4ms rise / 0.04ms fall - suppresses EMI and limits inrush surge during plug-in events. |
| IEC 61000-4-2 ESD Protection | 15kV air / 8kV contact - protects output against electrostatic discharge in handheld and docking applications. |
| Green Packaging | Halogen- and antimony-free, RoHS-compliant U-DFN2018-6 with no Br/Sb compounds per Diodes' specification. |
Applications
| USB Port Power Control | Laptop Docking Station |
|---|---|
|
Use Scenario: Managing power delivery to USB Type-A ports on a desktop motherboard where individual port enable/disable is required. IC Role / Device Role / Timing Role: High-side power switch with active-low EN synchronized to USB controller enumeration signals. Use Value: Prevents bus contention and ensures clean hot-plug detection by limiting inrush to <100mA during connect sequence. |
Use Scenario: Isolating USB, HDMI, and charging rails in a multi-interface laptop docking station. IC Role / Device Role / Timing Role: Load switch enabling VBUS only after host negotiation completes and thermal margin is verified. Use Value: Eliminates cross-talk between data and power paths while supporting simultaneous MHL video streaming and battery charging. |
| Smartphone Peripheral Hub | Gaming Console Accessory Port |
|
Use Scenario: Power management for USB-C expansion hubs attached to smartphones, delivering 5V/0.2A to connected peripherals. IC Role / Device Role / Timing Role: Hot-swap controller enforcing USB 2.0 current limits and reverse-blocking during cable insertion/removal. Use Value: Enables safe peripheral attachment without draining smartphone battery or triggering overcurrent shutdown. |
Use Scenario: Enabling USB-powered accessories (e.g., controllers, headsets) on next-gen gaming consoles with strict thermal budgets. IC Role / Device Role / Timing Role: Protected power gate with thermal hysteresis ensuring sustained operation during extended gameplay sessions. Use Value: Maintains accessory power continuity even under ambient +70°C enclosure conditions due to +140°C shutdown threshold. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-side USB load switch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TCK107AG,215 (Toshiba) | Active-high EN, 0.5A limit, 65mΩ RDS(ON), same U-DFN2018-6 footprint | Requires logic inversion for direct AP21410FM-7 replacement; better efficiency but lacks reverse blocking | Select if system uses active-high control and prioritizes lower conduction loss over reverse isolation. |
| TPS22965DRLR (TI) | Active-high EN, 0.6A limit, 42mΩ RDS(ON), 1.2mm × 1.6mm X2SON-6 package | Smaller footprint and higher current, but no integrated UVLO and requires external reverse-blocking diode | Choose for space-constrained designs needing higher current and faster rise time (0.1ms), accepting added BOM complexity. |
Compared with TCK107AG,215 and TPS22965DRLR, AP21410FM-7 uniquely combines active-low enable, reverse current blocking, and USB 2.0–specific UVLO in a thermally robust U-DFN2018-6 package - making it optimal for cost-sensitive, enumeration-timed USB port designs where backfeed prevention is mandatory.
Availability
AP21410FM-7 is available at Aetrix Electronics and suitable for USB port power control, laptop docking stations, smartphone peripheral hubs, and gaming console accessory interfaces requiring stable component supply across industrial temperature ranges and long-lifecycle production programs.
Supply support for AP21410FM-7 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 AP21410/AP21510 family was designed specifically for USB 2.0-compliant hot-swap power switching - emphasizing low RDS(ON), precise current limiting, and robust ESD/thermal protection in miniature DFN packages.
FAQ
What is the maximum continuous load current supported by AP21410FM-7?
The AP21410FM-7 is rated for 0.2A maximum continuous load current per the manufacturer's Recommended Operating Conditions. Although its current-limit threshold is 0.4A typical, sustained operation above 0.2A risks exceeding thermal limits in the U-DFN2018-6 package without aggressive PCB thermal design.
Does AP21410FM-7 require an external capacitor on the output?
Yes - a minimum 10µF electrolytic capacitor is recommended on the OUT pin to stabilize voltage during load transients and suppress ringing. For short-circuit immunity, a 0.01–0.1µF ceramic capacitor in parallel improves high-frequency response and reduces EMI.
Can AP21410FM-7 be used in automotive applications?
No - AP21410FM-7 is specified for –40°C to +85°C ambient operation and lacks AEC-Q200 qualification, automotive-grade ESD ratings beyond IEC 61000-4-2, or extended temperature validation. It is intended for commercial and industrial USB applications only.
How does the undervoltage lockout (UVLO) function interact with USB enumeration?
The UVLO circuit holds the internal switch off until VIN reaches ≥1.9V, ensuring the device remains inactive during USB power ramp-up. This prevents false enumeration or partial powering of downstream devices before stable VBUS is established - aligning with USB 2.0 specification timing requirements.
AP21410FM-7 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Package/Case:
- 6-UFDFN Exposed Pad
- 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):
- 200mA
- Rds On (Typ):
- 95mOhm
- Input Type:
- -
- Features:
- -
- 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:
- U-DFN2018-6
AP21410FM-7 FAQ
1.How can I place an order for AP21410FM-7 through Aetrix?
Please submit a Request for Quotation (RFQ) for AP21410FM-7 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 AP21410FM-7 reliable?
The price and inventory of AP21410FM-7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AP21410FM-7 is usually 5 days.
3.What payment methods are accepted for AP21410FM-7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AP21410FM-7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AP21410FM-7?
AP21410FM-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AP21410FM-7 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 AP21410FM-7?
For technical support, including AP21410FM-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AP21410FM-7 requirements.
6.How does Aetrix verify that AP21410FM-7 is sourced from the original manufacturer or authorized distributors?
All AP21410FM-7 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 AP21410FM-7 meets industry standards.
7.What is the process for return or replacement of AP21410FM-7?
All AP21410FM-7 units undergo pre-shipment inspection (PSI). If there is an issue with AP21410FM-7, 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 AP21410FM-7 part is unused and in its original packaging.
Return procedure for AP21410FM-7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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