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Diodes Incorporated AP2141AS-13
- Part No.:
- AP2141AS-13
- Manufacturer:
- Diodes Incorporated
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
AP2141AS-13.pdf
- Description:
- IC PWR SWITCH P-CHANNEL 1:1 8SO
- Quantity:
- Payment:
- Shipping:
Inventory:1,485
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Product details
Overview
AP2141AS-13 from Diodes Incorporated is a 0.5A single-channel high-side USB power switch with active-low enable, 95mΩ RDS(ON), 2.7V–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 AP2141AS-13 datasheet, AP2141AS-13 pinout, AP2141AS-13 application, or AP2141AS-13 equivalent, this device delivers controlled 0.6ms rise time, 7ms FLG deglitch, reverse current blocking, and SO-8 package compatibility for legacy USB power distribution designs.
Technical Context
The AP2141AS-13 implements a thermally protected N-channel MOSFET high-side switch with internal current-sense FET architecture-enabling accurate 0.8A current limiting without external sense resistors. Its UVLO (1.9V typ) ensures safe turn-on only after stable input rail establishment.
It features an open-drain FLG output with 7ms blanking to suppress false fault reporting during capacitive inrush, and supports dual-purpose port operation where VIN ramping must precede EN assertion-critical for HDMI/MHL shared-port battery charging applications.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Current Limit | 0.8A typical-clamps output current during overload without shutdown, preserving system uptime. |
| RDS(ON) | 95mΩ at 5V/25°C-minimizes conduction loss and self-heating in SO-8 package under 500mA load. |
| Input Voltage Range | 2.7V–5.5V-covers full USB 2.0 VBUS tolerance (4.75V–5.25V) plus brown-out margin. |
| Rise Time | 0.6ms typical-soft-starts downstream loads to limit inrush surge in hot-plug systems. |
| FLG Blanking | 7ms typ-suppresses transient over-current pulses from bulk capacitor charging, eliminating need for external RC filtering. |
| Shutdown Current | 1µA max-enables ultra-low power state in portable host devices during sleep mode. |
| UVLO Threshold | 1.9V typ-prevents erratic switching during power-up/down transients in embedded USB hubs. |
Pinout & Package
AP2141AS-13 is packaged in SO-8 (surface-mount, 150°C max junction temperature, θJA = 110°C/W on FR-4 with minimum pad layout).
| Pin | Circuit Role | Design Meaning |
|---|---|---|
| 1 | GND | Power ground reference and thermal path-must connect to PCB ground plane. |
| 2,3 | IN | Main input voltage pin-both pins tied externally to VBUS (2.7–5.5V); supplies internal LDO and gate driver. |
| 4 | EN | Active-low enable-logic low (≤0.8V) enables switch; high-Z when pulled up to IN. |
| 5 | FLG | Open-drain fault flag-goes low after 7ms deglitch upon over-current or thermal shutdown. |
| 6,7 | OUT | Switched output-connects to downstream USB port VBUS; both pins tied externally. |
| 8 | NC | No internal connection-recommended to tie to OUT for EMI reduction and thermal coupling. |
Key Features
| Feature | Design Value |
|---|---|
| Reverse current blocking | Prevents backflow from powered downstream loads into upstream VBUS during fault or disable-eliminates need for external blocking diode. |
| Controlled 0.6ms rise time | Soft-starts connected USB peripherals to limit inrush current below 1A peak-avoids tripping host controller over-current detection. |
| Integrated 7ms FLG deglitch | Rejects short-duration current spikes (e.g., from 22µF output caps) without external components-reduces BOM count and layout area. |
| Thermal shutdown with 25°C hysteresis | Shuts off at ~140°C junction temp and auto-recovers after cooling to ~115°C-enables fault-tolerant cycling during sustained overload. |
| USB 2.0 compliance | Meets electrical timing, current-limit accuracy, and fault-reporting requirements per USB 2.0 specification for single-port power delivery. |
Applications
| USB Host Port Protection | Self-Powered Hub Power Switching |
|---|---|
|
Use Scenario: Protecting individual downstream USB ports on desktop motherboards or docking stations against short circuits and overloads. IC Role / Device Role / Timing Role: High-side power switch with fast fault reporting and soft-start-acts as intelligent VBUS gate between host controller and port connector. Use Value: Prevents host controller reset or system crash during cable short events while maintaining USB enumeration integrity via clean FLG signaling. |
Use Scenario: Enabling/disabling power to downstream ports in self-powered USB hubs (e.g., monitors, printers) with independent current limiting per port. IC Role / Device Role / Timing Role: Standalone current-limited power switch-replaces discrete MOSFET + sense resistor + comparator solutions. Use Value: Reduces component count by 4+ parts per port and eliminates calibration drift issues inherent in external current-sense resistors. |
| Hot-Plug Module Power Control | Dual-Purpose HDMI/MHL Port Charging |
|
Use Scenario: Controlling power delivery to removable PCIe cards or expansion modules inserted into live systems without interrupting main power rails. IC Role / Device Role / Timing Role: Hot-swap controller with controlled turn-on-ramps output voltage over 0.6ms to limit inrush dI/dt. Use Value: Limits peak inrush current to <1A, preventing voltage droop on shared 5V rails and avoiding false triggering of upstream OVP circuits. |
Use Scenario: Managing VBUS delivery in shared HDMI/MHL ports that simultaneously stream video and charge smartphone batteries. IC Role / Device Role / Timing Role: Sequenced power switch-ensures VIN reaches operating voltage before EN activation to prevent latch-up during plug insertion. Use Value: Enables safe dual-role operation by decoupling power sequencing from data handshake, satisfying USB Battery Charging v1.2 timing requirements. |
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 |
|---|---|---|---|
| AP2141 (active replacement) | Same functional spec, updated lifecycle status-no obsolescence notice; identical SO-8 pinout and electrical behavior. | Direct drop-in replacement with guaranteed long-term supply; no design change required. | Select AP2141 for new designs or BOM refresh to avoid discontinuation risk. |
| TUSB2036 (TI) | Integrated USB 2.0 hub controller + power switches-requires external 3.3V LDO; higher integration but fixed 4-port topology. | Used in multi-port hub ICs-not suitable for discrete single-port switching where independent control is needed. | Choose only when consolidating hub logic and power switching into one IC; not a pin-compatible substitute. |
Compared with AP2141AS-13, the AP2141 offers identical performance with assured availability, while TUSB2036 trades discrete flexibility for system-level integration-making AP2141 the optimal upgrade path for continuity-critical designs.
Availability
AP2141AS-13 is available at Aetrix Electronics and suitable for USB 2.0 host port protection, self-powered hub power management, and hot-plug module control requiring stable component supply despite its obsolete status.
Supply support for AP2141AS-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 consumer, computing, and industrial markets.
The AP2141A belongs to Diodes' USB power switch product line-engineered specifically for robust, low-component-count current-limited VBUS control in space-constrained USB peripheral interfaces.
FAQ
Is AP2141AS-13 still manufacturable or supported by Diodes Incorporated?
No-AP2141AS-13 is officially obsolete per Diodes' DS40570 Rev. 3-4 (April 2018). Diodes discontinued the part and recommends AP2141 as the direct functional replacement. Aetrix Electronics maintains limited legacy stock with full traceability but does not offer new production builds.
Can AP2141AS-13 be used in new designs, or is redesign mandatory?
New designs should use AP2141 instead of AP2141AS-13. While AP2141AS-13 shares identical SO-8 pinout and electrical specs, its obsolete status means no future supply assurance, no errata updates, and no qualification for automotive or extended-temp variants. AP2141 is pin- and function-compatible with enhanced lifecycle support.
What is the maximum continuous output current for AP2141AS-13 in SO-8 package at 85°C ambient?
At +85°C ambient, the SO-8 package's θJA = 110°C/W limits usable current to approximately 420mA for TJ ≤ 150°C, assuming no PCB copper enhancement. With 2oz copper and thermal vias, derating relaxes to ~480mA-still within the 500mA recommended operating condition specified in DS40570.
Does AP2141AS-13 require external components for basic USB 2.0 operation?
Yes-minimum support requires a 0.1µF ceramic bypass capacitor between IN and GND, plus a 22µF–470µF output capacitor to stabilize VBUS during load transients. The FLG output needs a pull-up resistor (typically 10kΩ to IN), and EN may require a pull-down if driven by open-drain logic.
AP2141AS-13 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- 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:
- 8-SO
AP2141AS-13 FAQ
1.How can I place an order for AP2141AS-13 through Aetrix?
Please submit a Request for Quotation (RFQ) for AP2141AS-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 AP2141AS-13 reliable?
The price and inventory of AP2141AS-13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AP2141AS-13 is usually 5 days.
3.What payment methods are accepted for AP2141AS-13?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AP2141AS-13 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AP2141AS-13?
AP2141AS-13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AP2141AS-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 AP2141AS-13?
For technical support, including AP2141AS-13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AP2141AS-13 requirements.
6.How does Aetrix verify that AP2141AS-13 is sourced from the original manufacturer or authorized distributors?
All AP2141AS-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 AP2141AS-13 meets industry standards.
7.What is the process for return or replacement of AP2141AS-13?
All AP2141AS-13 units undergo pre-shipment inspection (PSI). If there is an issue with AP2141AS-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 AP2141AS-13 part is unused and in its original packaging.
Return procedure for AP2141AS-13:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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