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Diodes Incorporated AP2141AW-7
- Part No.:
- AP2141AW-7
- Manufacturer:
- Diodes Incorporated
- Package:
- SC-74A, SOT-753
- Datasheet:
-
AP2141AW-7.pdf
- Description:
- IC PWR SWITCH P-CHAN 1:1 SOT25
- Quantity:
- Payment:
- Shipping:
Inventory:4,056
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Product details
Overview
AP2141AW-7 from Diodes Incorporated is a 0.5A single-channel high-side USB power switch with active-low enable, 95mΩ RDS(ON), 2.7–5.5V input range, and integrated over-current/thermal protection-designed for USB 2.0 hot-swap ports in laptops, docking stations, and HUBs.
For engineers reviewing the AP2141AW-7 datasheet, AP2141AW-7 pinout, AP2141AW-7 application, or AP2141AW-7 equivalent, this device delivers precise 0.8A current limiting, 7ms FLG deglitching, reverse current blocking, <1µA shutdown current, and SO-8/SOT25/MSOP-8EP/U-DFN2018-6 package compatibility for USB port power management.
Technical Context
The AP2141AW-7 implements a thermally protected N-channel MOSFET high-side switch with UVLO (1.9V threshold), controlled 0.6ms rise time, and open-drain FLG output that asserts low after 7ms blanking upon over-current or thermal fault. It uses internal current-sense FET architecture-not external resistors-to maintain low conduction loss.
Its functional block integrates deglitched fault reporting, reverse current blocking during disable, and thermal hysteresis (25°C) to enable safe auto-recovery cycling under sustained overload. The device operates across –40°C to +85°C ambient and supports both host- and self-powered USB HUB topologies per USB 2.0 compliance requirements.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Current Limit | 0.8A typical; clamps output at safe level during overload without shutdown unless thermal limit reached. |
| RDS(ON) | 95mΩ @ 25°C, 5VIN; enables <0.25W dissipation at 0.5A, reducing thermal stress in SOT25 package. |
| Input Voltage Range | 2.7V–5.5V; supports full USB 2.0 VBUS tolerance and operation down to brown-out thresholds. |
| FLG Blanking Time | 7ms typical; suppresses false fault reports from capacitive inrush transients without external RC network. |
| Shutdown Current | 1µA max; minimizes standby power draw in battery-backed or always-on USB peripheral systems. |
| Enable Polarity | Active-low EN; interfaces directly with USB controller GPIOs asserting logic low to enable power delivery. |
| Reverse Current Blocking | Enabled when disabled; prevents backfeed from output to input-critical for shared-bus or dual-power-domain designs. |
Pinout & Package
AP2141AW-7 is packaged in SOT25 (5-pin SC-74A), with exposed thermal pad not electrically connected-requires external GND tie for thermal performance but not current conduction.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 OUT | Switched Output | High-side switched VBUS output; all OUT pins tied together externally in multi-pin packages. |
| 2 EN | Enable Input | Active-low logic control; pulled high via 100kΩ resistor by default; compatible with 3.3V/5V GPIOs. |
| 3 GND | Ground Reference | Power and signal ground reference; must be low-impedance connection to PCB ground plane. |
| 4 FLG | Fault Report | Open-drain output asserted low during over-current or thermal fault; requires external pull-up. |
| 5 IN | Input Supply | VBUS input (2.7–5.5V); connects to upstream USB power rail; bypassed with 0.1µF ceramic capacitor. |
Key Features
| Feature | Design Value |
|---|---|
| Controlled Rise Time | 0.6ms typical; limits inrush current to <1A during hot-plug, protecting upstream source and downstream caps. |
| Integrated UVLO | 1.9V threshold; prevents erratic switching during power ramp-up/down-ensures clean USB port enable/disable sequencing. |
| Thermal Shutdown | 140°C trip with 25°C hysteresis; enables safe auto-cycling under sustained short-circuit without latch-off. |
| ESD Robustness | 4kV HBM, 15kV IEC 61000-4-2 (with external cap); withstands handling and system-level ESD events in consumer endpoints. |
| Green Packaging | Halogen- and antimony-free, lead-free, RoHS-compliant molding compound; meets Diodes' "Green" definition (<900ppm Br/Cl). |
Applications
| USB Host Port Protection | Self-Powered Hub Power Switching |
|---|---|
|
Use Scenario: Desktop PC or laptop USB port delivering 5V to peripherals during hot-insertion. IC Role / Device Role / Timing Role: High-side power switch enabling/disabling VBUS with controlled slew rate and fault reporting. Use Value: Prevents inrush damage to host controller and peripheral ICs; FLG signal alerts firmware of over-current before thermal shutdown. |
Use Scenario: Standalone USB hub supplying regulated 5V to four downstream ports from local SMPS. IC Role / Device Role / Timing Role: Per-port current-limited power gate with independent EN/FLG for USB 2.0 compliance reporting. Use Value: Enables individual port disable on fault while maintaining operation of remaining ports; meets USB specification current-limit reporting. |
| Docking Station Load Management | HDMI/MHL Dual-Purpose Port |
|
Use Scenario: Laptop docking station managing simultaneous power delivery to Ethernet, USB, and DisplayPort adapters. IC Role / Device Role / Timing Role: Isolated high-side switch per peripheral rail, coordinated via system MCU EN signals. Use Value: Limits peak current per subsystem during plug-in; reverse blocking prevents backfeed between adapter rails. |
Use Scenario: Smartphone-connected TV using shared HDMI/MHL port for video streaming and battery charging. IC Role / Device Role / Timing Role: VBUS gate ensuring Vin ramps fully before enabling downstream charging circuitry. Use Value: Avoids premature enable of charging ICs during port negotiation; UVLO guarantees clean power sequencing. |
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 |
|---|---|---|---|
| AP2141AS-13 | Same die, SO-8 package; θJA = 110°C/W vs SOT25's 157°C/W; higher thermal margin at same current. | Preferred for higher-power or multi-port HUBs where board space allows SO-8 and thermal vias are feasible. | Select when board layout supports larger footprint and thermal relief is prioritized over miniaturization. |
| AP2151AW-7 | Pin-compatible active-high EN variant; identical RDS(ON), current limit, and FLG behavior. | Required when host MCU GPIOs drive EN high to enable-eliminates need for external inverter logic. | Choose only if system control logic mandates active-high enable; otherwise AP2141AW-7 reduces BOM count. |
Compared with AP2141AS-13 and AP2151AW-7, the AP2141AW-7 offers optimal size-to-thermal-performance ratio in SOT25 for space-constrained USB endpoints, while its active-low EN simplifies interface with legacy USB controllers lacking dedicated enable polarity inversion.
Availability
AP2141AW-7 is available at Aetrix Electronics and suitable for USB 2.0 host ports, self-powered hubs, and docking station load management requiring stable component supply and long-term design continuity.
Supply support for AP2141AW-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 AP2141A family targets USB-compliant hot-swap power distribution, delivering integrated current limiting, thermal safety, and fault reporting in compact surface-mount packages for endpoint devices.
FAQ
Is AP2141AW-7 still in production?
No-AP2141AW-7 is obsolete and discontinued per Diodes Incorporated's official documentation (DS40570 Rev. 3–4, April 2018). It has been superseded by the functionally identical AP2141 series, which maintains the same electrical specs, pinout, and package options including SOT25.
What is the maximum continuous output current for AP2141AW-7?
The AP2141AW-7 is rated for 500mA continuous output current under recommended operating conditions (–40°C to +85°C, VIN = 2.7–5.5V). Its 0.8A current limit provides headroom for transient surges, but sustained operation above 500mA requires thermal derating based on PCB copper area and θJA = 157°C/W.
How does the FLG pin behave during a short-circuit event?
During a short-circuit, the FLG pin remains high for 7ms (typical deglitch timeout), then pulls low via internal open-drain FET (RFLG = 20–40Ω) and stays low until both over-current and over-temperature faults clear. It does not pulse-it asserts and holds until fault removal.
Can AP2141AW-7 be used without an external pull-up on FLG?
No-FLG is an open-drain output requiring an external pull-up resistor (typically 10kΩ to 3.3V or 5V) to generate a valid logic-high level. Without it, the pin floats and cannot signal fault status reliably to monitoring circuitry or microcontrollers.
AP2141AW-7 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Package/Case:
- SC-74A, SOT-753
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- 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):
- 95mOhm
- Input Type:
- Non-Inverting
- Features:
- Status Flag
- Fault Protection:
- Current Limiting (Fixed), Over Temperature, Reverse Current, Short Circuit, UVLO
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-25
AP2141AW-7 FAQ
1.How can I place an order for AP2141AW-7 through Aetrix?
Please submit a Request for Quotation (RFQ) for AP2141AW-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 AP2141AW-7 reliable?
The price and inventory of AP2141AW-7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AP2141AW-7 is usually 5 days.
3.What payment methods are accepted for AP2141AW-7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AP2141AW-7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AP2141AW-7?
AP2141AW-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AP2141AW-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 AP2141AW-7?
For technical support, including AP2141AW-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AP2141AW-7 requirements.
6.How does Aetrix verify that AP2141AW-7 is sourced from the original manufacturer or authorized distributors?
All AP2141AW-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 AP2141AW-7 meets industry standards.
7.What is the process for return or replacement of AP2141AW-7?
All AP2141AW-7 units undergo pre-shipment inspection (PSI). If there is an issue with AP2141AW-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 AP2141AW-7 part is unused and in its original packaging.
Return procedure for AP2141AW-7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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