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Diodes Incorporated AP2141DFMG-7
- Part No.:
- AP2141DFMG-7
- Manufacturer:
- Diodes Incorporated
- Package:
- 6-UFDFN Exposed Pad
- Datasheet:
-
AP2141DFMG-7.pdf
- Description:
- IC PWR SWITCH P-CHANNEL 1:1 6DFN
- Quantity:
- Payment:
- Shipping:
Inventory:18,776
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Product details
Overview
AP2141DFMG-7 from Diodes Incorporated is a single-channel, active-low enable, high-side USB power switch with integrated current limiting (0.8A typ), output discharge, and fault flag reporting. It operates from 2.7V–5.5V input, features 90mΩ RDS(ON) in U-DFN2018-6 package, and delivers controlled 0.6ms rise time for hot-swap USB port protection in laptops and docking stations.
For engineers reviewing the AP2141DFMG-7 datasheet, AP2141DFMG-7 pinout, AP2141DFMG-7 application, or AP2141DFMG-7 equivalent, this device supports precise over-current response with 7ms deglitching, reverse current blocking, and thermal shutdown at 140°C - critical for reliable USB 2.0 power delivery in space-constrained consumer electronics.
Technical Context
The AP2141DFMG-7 implements a thermally protected high-side NMOS switch with internal current-sense FET architecture, eliminating external sense resistors. Its UVLO circuit (1.9V threshold) ensures turn-on only after stable input rail establishment, while the 7ms FLG blanking window suppresses false fault triggers during capacitive load inrush.
Discharge functionality activates on EN de-assertion via an internal 100Ω NMOS path to GND, enabling rapid VOUT collapse without external components. The open-drain FLG pin asserts low on either over-current (ILIMIT = 0.8A) or over-temperature (TJ ≥ 140°C), with 25°C hysteresis for stable recovery.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Current Limit | 0.8A typical; clamps sustained load current to prevent damage during overload or short-circuit conditions. |
| RDS(ON) | 90mΩ max at VIN=5V, TA=25°C (U-DFN2018-6); enables <0.2W conduction loss at 0.5A load. |
| Input Voltage Range | 2.7V–5.5V; fully compatible with USB 2.0 bus voltage tolerance and 3.3V/5V system rails. |
| Enable Polarity | Active-low; simplifies direct interface with microcontroller GPIOs asserting logic-low to power-enable peripherals. |
| FLG Blanking Time | 7ms typical; filters transient inrush spikes from triggering false over-current reports on heavy capacitive loads. |
| Shutdown Current | 1µA max; minimizes standby power draw in battery-backed or always-on USB host systems. |
| Discharge Resistance | 100Ω nominal; provides predictable RC-based VOUT decay (e.g., 0.6ms for 1µF load) when disabled. |
Pinout & Package
AP2141DFMG-7 is housed in a 2.0mm × 1.8mm U-DFN2018-6 package with exposed thermal pad connected internally to GND. The compact footprint supports high-density PCB layouts in portable devices.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (GND) | Ground reference and thermal pad connection | Must be soldered to PCB ground plane via thermal vias; primary heat dissipation path, not signal return. |
| 2 (IN) | Power input supply terminal | Accepts 2.7V–5.5V USB rail; requires local 0.1µF ceramic bypass capacitor for transient suppression. |
| 3 (EN) | Active-low enable control input | Pulled low to activate switch; VIH ≥ 2.0V, VIL ≤ 0.8V; compatible with 1.8V/3.3V logic families. |
| 4 (FLG) | Open-drain fault indicator output | Asserts low on over-current or over-temperature; requires external pull-up resistor for MCU interrupt monitoring. |
| 5,6 (OUT) | Switched power output terminals | Both pins tied together externally; deliver regulated current-limited power to downstream USB loads. |
Key Features
| Feature | Design Value |
|---|---|
| Output Discharge Function | Internal 100Ω discharge path reduces VOUT to <0.5V within 0.6ms (CL=1µF), preventing backfeed during hot-removal. |
| Reverse Current Blocking | Prevents >100nA reverse flow from OUT to IN when disabled, eliminating need for external blocking diode. |
| Controlled Rise/Fall Time | 0.6ms typical tR and 0.05ms tF limit inrush dI/dt, reducing EMI and stress on upstream power sources. |
| Integrated Thermal Protection | Shuts down at TJ = 140°C with 25°C hysteresis, enabling safe auto-recovery without latch-up or manual reset. |
| UVLO with Hysteresis | Enables only above 1.9V and disables below ~1.6V, ensuring clean power sequencing during brown-out or plug-in events. |
Applications
| USB 2.0 Port Power Switching | Laptop Docking Station Load Control |
|---|---|
|
Use Scenario: Individual USB Type-A port on a notebook requiring independent power enable/disable and short-circuit protection. IC Role / Device Role / Timing Role: High-side power switch managing VBUS delivery with current limiting, discharge, and fault reporting. Use Value: Prevents host port damage from peripheral shorts while enabling software-controlled port disable and fast VBUS ramp-down during ejection. |
Use Scenario: Power distribution to multiple peripherals (HDD, Ethernet, HDMI) in a USB-C docking station. IC Role / Device Role / Timing Role: Independent channel switch per peripheral rail, coordinated via MCU GPIOs for sequenced power-up. Use Value: Enables per-port current limiting (0.8A), thermal foldback, and FLG-driven fault isolation without discrete MOSFET + controller complexity. |
| Smartphone/Tablet USB Host Mode | Gaming Console Accessory Hub |
|
Use Scenario: OTG-enabled Android tablet powering USB flash drives or keyboards via micro-AB connector. IC Role / Device Role / Timing Role: USB VBUS switch with reverse current blocking and inrush control during accessory insertion. Use Value: Eliminates risk of backfeed into tablet battery during accidental reverse connection; 7ms FLG blanking avoids false trips on flash drive capacitance. |
Use Scenario: External gamepad or VR headset hub attached to PlayStation or Xbox console via USB. IC Role / Device Role / Timing Role: Hot-swap power switch protecting console USB controller from accessory surge currents and ESD. Use Value: 15kV IEC61000-4-2 ESD rating on OUT and robust 0.8A current limit ensure reliability across millions of plug/unplug cycles. |
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 controller; no standalone power switch function. | Designed for full-speed USB hub IC implementation, not discrete load switching. | Select only if full hub functionality (4 downstream ports, packet buffering) is required alongside power control. |
| TPS2051BDBVR | 0.5A current limit, SO-8 package, no output discharge or 7ms FLG deglitch. | Lacks discharge path and advanced fault filtering; suitable for basic USB charging-only ports. | Choose when cost sensitivity outweighs need for hot-removal safety and inrush immunity in non-data ports. |
Compared with TUSB2036IRHBR and TPS2051BDBVR, AP2141DFMG-7 uniquely combines accurate 0.8A current limiting, integrated discharge, and 7ms fault blanking in a 2mm×1.8mm DFN - making it optimal for compact, high-reliability USB power switching where per-port control and hot-plug safety are mandatory.
Availability
AP2141DFMG-7 is available at Aetrix Electronics and suitable for USB 2.0 port protection, laptop docking station power management, and smartphone OTG accessory hubs requiring stable component supply, long-term lifecycle support, and RoHS-compliant packaging.
Supply support for AP2141DFMG-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 power management, signal integrity, and protection solutions for consumer, computing, and industrial markets.
The AP21xxD series targets USB and hot-swap applications, delivering integrated high-side switching with protection features in ultra-small packages to simplify board-level power architecture.
FAQ
What is the maximum continuous load current supported by AP2141DFMG-7?
The AP2141DFMG-7 is rated for 0.5A maximum continuous load current per the datasheet's Recommended Operating Conditions, despite its 0.8A current-limit threshold. This derating accounts for thermal performance in the U-DFN2018-6 package at +85°C ambient, ensuring reliable operation without thermal shutdown under sustained load.
Does AP2141DFMG-7 require external components for over-current protection?
No external components are required for over-current protection. The device integrates a current-sense FET, deglitch timer (7ms typ), and open-drain FLG output. Only a pull-up resistor on FLG and standard input/output ceramic bypass capacitors (0.1µF each) are needed for full functionality per the datasheet layout guidelines.
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 capacitors. For a 100µF load, discharge time is ~10ms (RC time constant). This prevents backfeed into upstream supplies during hot removal and eliminates need for external discharge circuits, saving board space and BOM cost.
Can AP2141DFMG-7 be used in automotive USB applications?
AP2141DFMG-7 is specified for -40°C to +85°C ambient operation and meets USB 2.0 requirements, but it lacks AEC-Q100 qualification and automotive-specific transient immunity (e.g., ISO 7637-2). It is suitable for infotainment USB ports in non-safety-critical consumer-grade automotive accessories, not under-hood or ADAS systems.
AP2141DFMG-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):
- 500mA
- Rds On (Typ):
- 90mOhm
- Input Type:
- Non-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:
- U-DFN2018-6
AP2141DFMG-7 FAQ
1.How can I place an order for AP2141DFMG-7 through Aetrix?
Please submit a Request for Quotation (RFQ) for AP2141DFMG-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 AP2141DFMG-7 reliable?
The price and inventory of AP2141DFMG-7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AP2141DFMG-7 is usually 5 days.
3.What payment methods are accepted for AP2141DFMG-7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AP2141DFMG-7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AP2141DFMG-7?
AP2141DFMG-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AP2141DFMG-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 AP2141DFMG-7?
For technical support, including AP2141DFMG-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AP2141DFMG-7 requirements.
6.How does Aetrix verify that AP2141DFMG-7 is sourced from the original manufacturer or authorized distributors?
All AP2141DFMG-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 AP2141DFMG-7 meets industry standards.
7.What is the process for return or replacement of AP2141DFMG-7?
All AP2141DFMG-7 units undergo pre-shipment inspection (PSI). If there is an issue with AP2141DFMG-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 AP2141DFMG-7 part is unused and in its original packaging.
Return procedure for AP2141DFMG-7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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