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Diodes Incorporated AP2141DWG-7
- Part No.:
- AP2141DWG-7
- Manufacturer:
- Diodes Incorporated
- Package:
- SC-74A, SOT-753
- Datasheet:
-
AP2141DWG-7.pdf
- Description:
- IC PWR SWITCH P-CHAN 1:1 SOT25
- Quantity:
- Payment:
- Shipping:
Inventory:4,645
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Product details
Overview
AP2141DWG-7 from Diodes Incorporated is a single-channel, active-low enable, high-side USB power switch with integrated current limiting (0.8A typ), 90mΩ RDS(ON), output discharge function, and open-drain fault flag (FLG) with 7ms deglitch. It operates from 2.7V to 5.5V input and delivers controlled turn-on (0.6ms rise time) for hot-swap protection in USB 2.0-compliant host ports.
For engineers reviewing the AP2141DWG-7 datasheet, AP2141DWG-7 pinout, AP2141DWG-7 application, or AP2141DWG-7 equivalent, this device is selected for precise current-limited power delivery, reverse-current blocking, thermal/overcurrent fault reporting, and compact SOT25 packaging in space-constrained USB peripheral interfaces.
Technical Context
The AP2141DWG-7 implements a high-side NMOS power switch with internal gate driver, slew-rate control, and current-sense FET-based overload detection-no external sense resistor required. Its UVLO (1.9V typ) ensures safe startup only after input stabilization, while thermal shutdown activates at 140°C with 25°C hysteresis.
It integrates an internal 100Ω discharge path activated on disable, enabling rapid VOUT collapse without external components. The FLG pin reports overcurrent or overtemperature faults as an open-drain low signal, blanked for 7ms to suppress false triggers from capacitive inrush.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Current Limit | 0.8A typical; clamps load current during overload to prevent damage to downstream circuitry |
| RDS(ON) | 90mΩ max at 5V/25°C; minimizes conduction loss and self-heating in 0.5A continuous operation |
| Input Voltage Range | 2.7V–5.5V; supports full USB 2.0 bus voltage range including degraded or battery-backed supplies |
| Enable Polarity | Active-low; simplifies direct interface with microcontroller GPIOs asserting low to enable power delivery |
| FLG Blanking Time | 7ms typical; eliminates false fault reporting from transient inrush into large output capacitance |
| Shutdown Current | 1µA max; enables ultra-low-power standby in battery-powered USB peripherals |
| Output Discharge | Internal 100Ω path; discharges 1µF load to <0.5V in ≤0.6ms, preventing backfeed or latch-up on hot removal |
Pinout & Package
AP2141DWG-7 is packaged in SOT25 (5-pin, 2.9mm × 1.6mm), with exposed pad thermally connected to GND. Pin 1 = GND, Pin 2 = IN, Pin 3 = EN (active-low), Pin 4 = FLG (open-drain), Pin 5 = OUT.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| GND | Ground reference and thermal sink | Primary return path; exposed pad must be soldered to PCB ground plane for thermal management |
| IN | Power input supply node | Accepts 2.7–5.5V USB bus; requires local 0.1µF ceramic bypass capacitor |
| EN | Active-low enable control | Pulled high via 10kΩ to IN for default disable; driven low to activate power switch |
| FLG | Open-drain fault indicator | Sinks current when overcurrent or overtemperature occurs; requires external pull-up to monitor status |
| OUT | Switched power output | Delivers current-limited, slew-controlled voltage to USB load; supports reverse-current blocking |
Key Features
| Feature | Design Value |
|---|---|
| Integrated output discharge | 100Ω internal NMOS path reduces VOUT to <0.5V in <0.6ms on disable, eliminating need for external discharge circuitry |
| Reverse current blocking | Prevents backflow from loaded OUT to IN when disabled-even if VOUT > VIN-protecting upstream power sources |
| UVLO with hysteresis | Turns on only above ~1.9V and stays on until VIN drops below ~1.6V, ensuring clean power sequencing during hot-insertion |
| Thermal shutdown recovery | Shuts down at 140°C and auto-restarts after cooling by 25°C, enabling fault-tolerant pulsed operation under sustained overload |
| ESD robustness | 4kV HBM / 15kV IEC 61000-4-2 (with external cap); withstands handling and system-level surges in consumer USB environments |
Applications
| USB Host Port Protection | Hot-Swap Peripheral Module |
|---|---|
Use Scenario: USB 2.0 upstream port on laptop or docking station supplying power to external HDD or flash drive. IC Role / Device Role / Timing Role: High-side current-limited switch controlling VBUS delivery with controlled 0.6ms rise time and FLG fault reporting. Use Value: Prevents inrush damage to host controller and protects against shorted cables or faulty peripherals using integrated 0.8A current limit and 7ms FLG deglitch. | Use Scenario: Removable expansion card inserted into powered industrial controller while system remains operational. IC Role / Device Role / Timing Role: Hot-plug power sequencer enabling soft-start via slew-controlled turn-on and UVLO-enforced safe insertion detection. Use Value: Limits surge current during card insertion and ensures power is cut before removal, avoiding bus contention or data corruption. |
| LCD Monitor USB Hub | Smartphone Docking Station |
Use Scenario: Integrated USB hub in LCD monitor providing downstream ports for keyboard/mouse with independent power control. IC Role / Device Role / Timing Role: Individual channel switch per port, enabling per-port overcurrent isolation and discharge on disconnect. Use Value: Enables independent port disable/re-enable without resetting entire hub; discharge function prevents floating VBUS on cable unplug. | Use Scenario: Desktop docking station delivering USB power and data to smartphone while charging battery via dedicated path. IC Role / Device Role / Timing Role: Isolated VBUS switch between dock and phone, enforcing current limit and reverse-current blocking during charge negotiation. Use Value: Blocks backfeed from phone battery into dock during disconnect and maintains USB 2.0 compliance under dynamic load changes. |
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 | 3-channel USB 2.0 transceiver with integrated 5V switch; higher integration but no output discharge or FLG reporting | Designed for full USB hub IC implementation-not a discrete power switch replacement | Select only if replacing a complete hub IC; not suitable as drop-in for AP2141DWG-7's discrete switching role |
| TPS2051BDBVR | Single-channel 0.5A current-limited switch; active-high enable; no integrated discharge or 7ms FLG deglitch | Lacks output discharge and advanced fault blanking-requires external RC network for reliable inrush immunity | Choose when cost sensitivity outweighs need for discharge and robust fault reporting; verify FLG timing with external filtering |
Compared with TUSB2036IRHBR and TPS2051BDBVR, AP2141DWG-7 uniquely combines active-low enable, integrated discharge, and factory-trimmed 7ms FLG deglitch in SOT25-enabling simpler, more reliable USB port protection without layout compromises or external components.
Availability
AP2141DWG-7 is available at Aetrix Electronics and suitable for USB 2.0 host ports, hot-swap peripheral modules, and LCD monitor hub designs requiring stable component supply, long-term lifecycle support, and RoHS-compliant green packaging.
Supply support for AP2141DWG-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 AP2141D/AP2151D product line targets USB-compliant hot-swap power distribution, emphasizing precision current limiting, thermal resilience, and minimal external component count for compact, cost-sensitive interface designs.
FAQ
What is the maximum continuous load current supported by AP2141DWG-7?
The AP2141DWG-7 is rated for 0.5A maximum continuous load current per the datasheet's Recommended Operating Conditions. Although its current limit is 0.8A typical, sustained operation above 0.5A risks thermal shutdown due to power dissipation in the SOT25 package-especially above 60°C ambient. Derating is required for reliable long-term use.
Does AP2141DWG-7 require external components for basic USB port protection?
No external components are required for core functionality: current limiting, UVLO, thermal shutdown, and FLG reporting all operate autonomously. However, a 0.1µF ceramic capacitor between IN and GND is mandatory for stability, and a pull-up resistor on FLG is needed for fault monitoring. Output discharge works without added parts.
How does the 7ms FLG deglitch improve system reliability?
The 7ms deglitch prevents false FLG assertions caused by transient inrush currents-such as those from charging large output capacitors during power-up. Without it, brief spikes could falsely trigger host firmware fault handlers. This built-in timing eliminates need for external RC filters, reducing BOM count and layout area while improving noise immunity.
Can AP2141DWG-7 be used in automotive USB applications?
AP2141DWG-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 may be used in non-safety-critical infotainment USB ports with additional external protection, but is not recommended for under-hood or ASIL-B/C systems without validation.
AP2141DWG-7 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Package/Case:
- SC-74A, SOT-753
- 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):
- 95mOhm
- 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:
- SOT-25
AP2141DWG-7 FAQ
1.How can I place an order for AP2141DWG-7 through Aetrix?
Please submit a Request for Quotation (RFQ) for AP2141DWG-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 AP2141DWG-7 reliable?
The price and inventory of AP2141DWG-7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AP2141DWG-7 is usually 5 days.
3.What payment methods are accepted for AP2141DWG-7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AP2141DWG-7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AP2141DWG-7?
AP2141DWG-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AP2141DWG-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 AP2141DWG-7?
For technical support, including AP2141DWG-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AP2141DWG-7 requirements.
6.How does Aetrix verify that AP2141DWG-7 is sourced from the original manufacturer or authorized distributors?
All AP2141DWG-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 AP2141DWG-7 meets industry standards.
7.What is the process for return or replacement of AP2141DWG-7?
All AP2141DWG-7 units undergo pre-shipment inspection (PSI). If there is an issue with AP2141DWG-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 AP2141DWG-7 part is unused and in its original packaging.
Return procedure for AP2141DWG-7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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